Mohamed S. Hamdy

Mohamed S. Hamdy
King Khalid University | KKU · College of Science

Professor

About

173
Publications
18,459
Reads
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3,316
Citations
Citations since 2017
122 Research Items
2491 Citations
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201720182019202020212022202302004006008001,000
201720182019202020212022202302004006008001,000
201720182019202020212022202302004006008001,000
Introduction
I am a chemical researcher and a faculty member. My research experience lasts the past 26 years in the fields of catalysis, photocatalysis, adsorption and sensors. I had several research positions at distinguished universities and research institutes. I granted several research funds from different organizations and I supervised international research teams. I am interested in the projects that are designed to engage the undergraduate students in the scientific search field. I am also interested in developing the teaching methods and modes of instructions to smoothly link the students to the different academic programs.
Additional affiliations
September 2019 - present
King Khalid University
Position
  • Professor
September 2013 - August 2019
King Khalid University
Position
  • Professor (Associate)
June 2011 - August 2013
University of Twente
Position
  • Research Associate
Education
February 2001 - December 2005
Delft University of Technology
Field of study
  • Chemistry

Publications

Publications (173)
Article
Full-text available
A facial one-step synthesis procedure was applied to prepare porous sponge-like ceria (CeO2). The synthesis was performed by mixing cerium nitrate with citric acid, followed by thermal treatment. The produced solid material was characterized by several techniques, such as XRD, SEM, N2 sorption measurement, DR-UV-vis, and Raman spectroscopy. The cha...
Article
The cobalt nanoparticles decorated biomass Juncus derived carbon ([email protected]) was prepared by facile calcination strategy and applied to activate peroxymonosulfate (PMS) for eliminating ofloxacin (OFX) in the water environment. The results of catalytic experiments show that 97% of OFX degradation efficiency and 70.4% of chemical oxygen deman...
Article
Full-text available
Energy demand and environmental degradation became the cause of alarming situation for the entire world. Therefore, switching from conventional to non-conventional or renewable energy sources is urgently required. In the era of renewable energy resources, solid oxide fuel cells (SOFCs) are more fascinating owing to their multiple properties and fun...
Article
Full-text available
Herein we are presenting the easy synthesis of ZnO with different Ag contents in presence of 0.5 g citric acid and studied their key physical properties. Structural study confirm the hexagonal phase of ZnO at all contents of Ag and the crystallite size calculated in range of 21 to 23 nm. No major variation in crystallite size was seen on increasing...
Article
Full-text available
In this study, 1 wt% platinum (Pt) nanoparticles were incorporated into five types of zeolites (HY, Beta, mordenite, ZSM-5, and ferrierite) with an impregnation technique. The synthesis strategy included the use of water as a solvent for the applied Pt source. Moreover, the incorporation process was performed at ambient conditions followed by calci...
Article
Full-text available
The paper describes the synthesis of a novel nano-sized phosphine-free benzothiazole-based palladium(II) complexes from easily accessible starting materials and study their efficiency as catalysts for Suzuki Miyaura cross coupling reaction using water as a solvent under microwaves irradiations. Structural elucidation of the novel nano-sized benzthi...
Article
Proton exchange membrane water electrolyzer (PEMWE) represents a promising technology for the sustainable production of hydrogen, which is capable of efficiently coupling to intermittent electricity from renewable energy sources (e.g., solar and wind). The technology with compact stack structure has many notable advantages, including large current...
Article
Nitrate (NO3⁻) electroreduction has emerged as an attractive strategy for ammonia (NH3) synthesis at room temperature but lacks efficient electrocatalysts with high selectivity for NH3 formation. In this work, we report that an oxygen vacancy-enriched Co3O4 nanosheet array on carbon cloth (CC) behaves as a highly active and stable catalyst for NO3⁻...
Article
Electrocatalytic reduction of nitrite to NH3 provides a new route for the treatment of nitrite in wastewater, as well as an attractive alternative to NH3 synthesis. Here, we report that an oxygen vacancy-rich TiO2-x nanoarray with different crystal structures self-supported on the Ti plate can be prepared by hydrothermal synthesis and by subsequent...
Article
Full-text available
The selective oxidation of cyclohexane was catalyzed by applying a new series of catalytic materials. The new catalytic series consists of two different active sites incorporated into the three-dimensional siliceous mesoporous TUD-1 material. The first active site was isolated Co(II) ions, while the second active site was nanoparticles of Al2O3, Ce...
Article
The sustainable production of NH3 through an ambient electrocatalytic N2 reduction reaction (NRR) requires the ingenious design of efficient electrocatalysts. Herein, plasma-etched Ti2O3 with oxygen vacancies (OV-Ti2O3) is reported as an active and stable electrocatalyst for NRR. The resulting OV-Ti2O3 catalyst exhibits outstanding N2 fixation perf...
Article
Ambient ammonia synthesis by electroreduction of nitrate (NO3-) provides us a sustainable and environmentally friendly alternative to the traditional Haber-Bosch process. In this work, Mn2CoO4 nanoarray grown on carbon cloth (Mn2CoO4/CC) serves as a superior electrocatalyst for efficient NH3 synthesis by selective reduction of NO3-. When operated i...
Article
Electrocatalytic NO reduction reaction to generate NH3 under ambient conditions offers an attractive alternative to the energy-extensive Haber–Bosch route; however, the challenge still lies in the development of cost-effective and high-performance electrocatalysts. Herein, nanoporous VN film is first designed as a highly selective and stable electr...
Article
Full-text available
Ambient electroreduction of nitrogen (N2) is considered as a green and feasible approach for ammonia (NH3) synthesis, which urgently demands for efficient electrocatalyst. Morphology has close relationship with catalytic activity of heterogeneous catalysts. Nanoribbon is attractive nanostructure, which possesses the flexibility of one-dimensional n...
Article
Electrochemical N2 reduction emerges as a promising substitute to the Haber-Bosch process for ambient NH3 synthesis, but it is a tough task to develop efficient catalysts. Here, we propose a CeO2 nanoparticle decorated three-dimensional carbon skeleton derived from Juncus as an active and stable electrocatalyst for N2-to-NH3 conversion. In N2-satur...
Article
Full-text available
Well-defined silver nanoparticles were doped into bio-based amorphous silica (Ag-b-SiO2) with different silver contents (from 2 to 20 wt%) by a solvent-free procedure. The four as-synthetized samples were hydrogenated at 300 °C to ensure the formation of zero-valent Ag nanoparticles. The prepared samples were characterized by X-ray powder diffracti...
Article
Full-text available
Bio-based silica, lignocellulose, and activated carbon were simply produced via the recycling of Hassawi rice biomass waste of Al-Ahsa governorate in the eastern Saudi Arabia region using a fast chemical treatment procedure. Rice husk and rice straw wastes were collected, ground, and chemically treated with sodium hydroxide to extract silica/silica...
Article
Full-text available
Nickel oxide powder was prepared by simple calcination of nickel nitrate hexahydrate at 500 °C for 5 h and used as a catalyst for the oxidation of cyclohexane to produce the cyclohexanone and cyclohexanol—KA oil. Molecular oxygen (O2), hydrogen peroxide (H2O2), t-butyl hydrogen peroxide (TBHP) and meta-chloroperoxybenzoic acid (m-CPBA) were evaluat...
Preprint
The paper describes the synthesis of a novel nano-sized phosphine-free benzothiazole-based palladium(II) complexes from easily accessible starting materials and studies their efficiency as catalysts for Suzuki Miyaura cross coupling reaction using water as a solvent under microwaves irradiations. Structural elucidation of the novel nano-sized benzt...
Article
Electrochemical reduction of nitrite to ammonia can simultaneously achieve ammonia synthesis and N-contaminant removal under mild conditions, which has attracted widespread attention but still lacks efficient catalysts. In this work, Ag nanoarray using NiO nanosheets array on carbon cloth as support is reported as an efficient electrocatalyst to se...
Article
Electrocatalytic nitrite reduction to value-added NH3 can simultaneously achieve sustainable ammonia production and N-contaminant removal in natural environments, which has attracted widespread attention but still lacks efficient catalysts. In this work, Cu nanoparticles decorated juncus-derived carbon can be proposed as a high-active electrocataly...
Article
A bimetallic FeCo 2 O 4 spinel nanowire array grown on carbon cloth is highly active and stable for electrocatalytic NO 3 ⁻ reduction to NH 3 , capable of attaining a large NH 3 yield of 4988 μg h ⁻¹ cm ⁻² with a high faradaic efficiency of 95.9%.
Article
Electrocatalytic nitrate reduction is a sustainable approach to produce ammonia and remediate water pollutant nitrate. Here, we show that Co nanoparticles decorated pomelo-peel-derived carbon as an efficient electrocatalyst for nitrate...
Article
Sustainable mitigation of the continuously rising concentration of NO contaminants is among the most urgent issues of this century. Ambient electrocatalytic conversion of NO into useful NH3 offers an attractive path toward achieving sustainable NO abatement and NH3 production simultaneously. However, its efficiency is challenged by the intense comp...
Article
Electrocatalytic nitrate (NO3-) reduction has emerged as an attractive dual-function strategy to produce ammonia (NH3) and simultaneously mitigate environmental issues. However, efficient electrocatalysts with high selectivity for NH3 synthesis are highly desired. In this work, we report the Co-NCNT nanohybrid as a highly active electrocatalyst tow...
Article
Electrocatalytic nitrite reduction not only holds significant potential in the control of nitrite contamination in the natural environment, but also is an attractive approach for sustainable ammonia synthesis. In this communication, we report that a TiO2-x nanobelt array with oxygen vacancies on a titanium plate is able to convert nitrite into ammo...
Article
The increasing energy demand and related environmental issues have drawn great attention worldwide, thus necessitating the development of sustainable technologies to preserve the ecosystems for future generations. Electrocatalysts for energy-conversion reactions such as the hydrogen evolution reaction (HER), nitrogen reduction reaction (NRR), and c...
Article
The ever-increasing anthropic NO emission from fossil fuel combustion has resulted in a series of severe environmental issues. Ambient electrocatalytic NO reduction has emerged as a promising route for sustainable NO abatement and energy-saving NH3 synthesis, but it is kinetically complex and energetically challenging, thus requiring electrocatalys...
Article
Electrochemical nitrate reduction reaction (NO3RR) is an attractive alternative to NH3 production under ambient conditions. Although noble metal-based catalysts exhibit decent NO3RR performance to NH3, the high cost and insufficient supply obstruct its large-scale application. In this work, we report that Fe-doped Co3O4 nanoarray efficiently cataly...
Article
Full-text available
Generating enormous oxygen radicals with metal oxides is a viable route to achieve efficient and eco‐friendly photocatalysis. To this aim, we co‐doped the TiO2 nanoparticles with activated charcoal (AC) and Fe (transition element) for the methylene blue (MB) dye degradation. The AC significantly enhances the adsorption of MB on the TiO2 surface, wh...
Article
Electrochemical nitrate (NO3⁻) reduction reaction is highly encouraging for environmental NO3– contaminant removal and has emerged as an energy-efficient and environment-friendly NH3 synthesis route under mild conditions. This aqueous NO3⁻ reduction process, however, not only suffers from strong competition from hydrogen evolution reaction (HER) bu...
Article
Electrocatalytic NO reduction into value-added NH3 addresses the need for NO emission abatement and presents a sustainable alternative to the industrial Haber–Bosch process. It is however challenged by unsatisfactory conversion efficiencies due to competitive hydrogen evolution and requires highly active and selective catalysts for NO reduction rea...
Article
Semiconductor-based nanomaterials and their composites have received significant attention for solving the current global issues about energy crises, health, and environmental pollution. In this regard, boron nitride (BN), a versatile wide band gap semiconductor nanomaterial, can be a beneficial candidate due to its mechanical strength, chemical st...
Article
The carbon nitride (CN) has good stability, a comprehensive band structure, and a more straightforward fabrication process that makes them a top candidate for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). So far, scientists have been involved broadly in utilizing smaller carbon-based molecules to modify the CN framework for...
Article
Electrocatalytic N2 reduction is a sustainable alternative to the Haber-Bosch process for ambient NH3 synthesis, but it needs efficient and stable catalysts. Herein, a hybrid of TiO2 and juncus effusus-derived...
Article
Electrocatalytic reduction of nitrite (NO2-) to ammonia (NH3) can simultaneously achieve wastewater treatment and ammonia production, but it needs efficient catalysts. Herein, Cu2O particles self-supported on Cu foam with enriched oxygen vacancies are developed to enable selective NO2- reduction to NH3, exhibiting a maximum NH3 yield rate of 7510.7...
Preprint
Full-text available
With the distribution of exploitable non-renewable energy resources, the use of lignocellulosic wastes to make bioethanol and biogas has drawn great attention from researchers. In our effort to find a potent cellulase-producing fungal strain, the fungus NAS51 was isolated from a sponge collected from the Red Sea, Jeddah, among eight isolates and se...
Article
Full-text available
The present work was aimed to develop pure and varying concentration (1, 2, 3, 5%) of Bi doped ZnO nanomaterials for photocatalytic application through a simple one pot synthesis technique. The structural, morphological, optical and photocatalytic behavior of the prepared samples were characterized using different techniques. The XRD results of the...
Article
In this report, pure ZnO and Co doped ZnO (1, 2.5, 5, 7.5 wt.% of Co) nanoparticles were synthesized by using one-pot flash combustion synthesis technique. Structural, morphological, optical and photocatalytic properties of the prepared samples were analyzed by using different characterization techniques. The X-ray diffraction results shows the pur...
Article
Magnetic nanoparticles are found to have tremendous applications towards opto-magnetic-photocatalytic fields. Hence, herein authors make the efforts to prepare CuFe2O4 (CFe) nanoparticles (NPs) with different Co contents Cu1-xCoxFe2O4 (0 ≤ x ≤ 0.5) (CCFe NPs) through microwave combustion process for the first time. Mono phasic preparation of CFe NP...
Article
Nanoparticles of BiVO3/g-C3N4 heterojunctions embedded two semiconductor of matching band gap energy was employed for photodegradation of amaranth dye and evolution of huge amount of hydrogen gas. A simple thermal decomposition of urea is efficient route for producing g-C3N4 nanosheets. In ultrasonic bath of power intensity 150 Watt, BiVO3 nanopart...
Article
In the recent years, direct Z-scheme heterojunctions exhibit an exceptional reactivity in various photocatalytic processes. Hybrid visible light driven photocatalyst consisting of semiconducting metal oxide and conducting polymer have immense capability of destruction of various organic pollutants and production of hydrogen gas as alternative renew...
Article
Nickel oxide (NiO) nanoparticles were prepared by thermal decompositions of nickel acetate tetrahydrate and bis(acetylacetonato) nickel(II) complex at 500°C in air atmosphere. The thermal decomposition of nickel acetate tetrahydrate produced NiO and the thermal decomposition of bis(acetylacetonato) nickel(II) complex afforded a metal-metal oxide co...
Article
Nickel oxide (NiO) nanoparticles were prepared by thermal decompositions of nickel acetate tetrahydrate and bis(acetylacetonato) nickel(II) complex at 500°C in air atmosphere. The thermal decomposition of nickel acetate tetrahydrate produced NiO and the thermal decomposition of bis(acetylacetonato) nickel(II) complex afforded a metal-metal oxide co...
Article
Full-text available
To avoid the aggregation problem and activity loss of nickel oxide (NiO) nanoparticles (NPs) in organic reactions, NiO NPs were incorporated into TUD-1 mesoporous material. One-step sol–gel preparation was applied to prepare four samples of Ni incorporated in TUD-1 silica matrix with diferent Ni content. The four samples with Si/Ni ratio=100, 50, 2...
Article
Full-text available
We report the photocatalytic activity of cerium-doped zinc oxide (Ce:ZnO) nanocrystals, toward the rapid degradation of methyl green dye molecules under black light (λ = 376 nm) irradiation. The Ce:ZnO samples are prepared by simple one-pot preparation methods with different Ce concentrations. The crystal parameters of the Ce:ZnO are derived from X...
Article
A direct and simple one-step procedure was applied to prepare gold (Au) nanoparticles (NPs) embedded in graphitic carbon nitride (g-C3N4) sheets. Four samples with different Au contents (from 0.5 to 5% wt) were prepared via thermal polymerization of melamine at 550 °C in the presence of commercial Au NPs after careful mixing using a ball mill. The...
Article
A facile process has been employed to prepare the high quality ZnO nanostructures with different contents of Iron (Fe) doping. X-ray diffraction analysis confirms the synthesis of monophasic ZnO at all Fe contents and rules out the formation of secondary phase. The Scherrer formula was used to determine the particle and noticed to be reduced from 2...
Article
Sonicated mesoporous BiVO4/TiO2 heterojunctions were recorded for highly efficient photodegradation of rhodamine B dye and production of hydrogen gas. The heterojunction structures were characterized by XRD, DRS, FTIR, BET, FESEM, HRTEM and PL. The efficiency of the radiation power of ultrasound waves [50–300 Watt/cm²] on dye degradation and effici...
Article
Construction of visible-light-driven heterojunction photocatalyst with robust redox ability to degrade the organic pollutant is a great challenge in environmental remediation field. Herein, we have proposed the F (fluorine) doped carbon nitride (FCN) coupled NiFe2O4 (NFO) heterojunction for photo Fenton-like commercial paracet-amol (PAM) drug degra...
Article
Pure tungsten oxide (WO3) nanoparticles (NPs) and WO3/copper tungstate (CuWO4) nanocomposites (NCs) were prepared by varying copper content from (5–20 wt%) via the co-precipitation process. XRD results reveal that the structural parameters of WO3/CuWO4 NCs have been strongly affected via Cu doping. Morphology of synthesized WO3 was noticed to be di...
Article
In the current study, for first time trivalent lanthanum (La) ions was incorporated with different loading into the 3D-sponge-like structured of TUD-1 mesoporous material. All fabricated materials were synthesized via applied one-pot sol-gel hydrothermal method. Different physical and chemical characterization techniques such as ICP, XRD, SEM, EDX,...
Article
Well-defined Pt nanoparticles were integrated into the mesoporous material TUD-1 by applying one-pot sol-gel methodology and denoted as Pt-TUD-1. The characterization data of Pt-TUD-1 confirmed the presence of highly dispersed nanoparticles of zero-valent platinum (Pt⁰) of 5-10 nm average size incorporated into the three-dimensional silica framewor...
Article
In this work, pure tungsten oxide (WO3) nanoparticles (NPs) and WO3/CoWO4 nanocomposites (NCs) with various cobalt concentrations from 5 to 20 wt% were prepared via a co-precipitation process and subsequent annealing at 600 °C. All the synthesized samples were characterized by different techniques to study their structural, morphological, elemental...
Article
Full-text available
The structural and phase analysis of Li@ZnO nanostructures (NSs) were tested by X-ray diffraction (XRD) and transmission electron microscopy (TEM). TEM exhibits the mixture of nanoflakes and nanoparticles at 1 wt% Li, and spherical shaped nanoparticles at 7 wt%, respectively. TEM images show the nanoflakes with thickness (12–37 nm) and diameter of...
Article
Electroreduction of O2 into H2O2 holds great promise to replace the energy-intensive anthraquinone process that is currently used as an industry standard, but its practical feasibility still requires materials with...
Article
Full-text available
Here, a comparison between four mesoporous siliceous compounds is conducted to investigate the effect of support on formation and catalytic behavior of palladium (Pd) nanoparticles. The four investigated supports are: the commercially available MCM-41, SBA-15 and MCM-48, in addition to the home-made TUD-1 material. The same amount of Pd (Si/Pd = 20...
Article
Full-text available
Flower-like NiO microspheres with an average size of ⁓ 3 μm and nanoflakes size ⁓ 10–100 nm were synthesized by surfactant-assisted chemical precipitation method, using Ni(CH3CO2)2·4 H2O as a nickel source, diethanolamine as a complexing agent, and cetyltrimethylammonium bromide as a surfactant. The obtain material was characterized by SEM, EDX, HR...
Article
This research, for the first time, reports the design and development of a heterogeneous nano-catalyst based on sodium ions (Na+) incorporation in Technical University of Delft (TUD-1) mesoporous silica for Knoevenagel condensation reaction. Facile one-step fabrication of Na-TUD-1 nano-catalysts (varying Si/Na ratio as 100–5) was demonstrated using...
Article
The construction of visible-light active photocatalyst with robust stability and efficient activity towards organic pollutant degradation and the reactive radical’s production still motivate the research in the photocatalytic environmental remediation application. Herein, the effective and recyclable rGO supported g-C3N4/CoFe2O4 heterojunction was...
Article
To avoid the aggregation problem and activity loss of nickel oxide (NiO) nanoparticles (NPs) in organic reactions, NiO NPs were incorporated into TUD-1 mesoporous material. One-step sol-gel preparation was applied to prepare four samples of Ni incorporated in TUD-1 silica matrix with different Ni content. The four samples with Si/Ni ratio = 100, 50...
Article
Nickel(II)dibenzotetramethyltetraaza[14]annulene complex (Nitmtaa) prepared and immobilized on amino-fucntionnalized TUD-1 (N-TUD-1) via Ni—N (NH2) bond to obtain a stable and reusable new nanocatalyst named as Nitmtaa@N-TUD-1. The catalytic activity performance of this new nanocatalyst was evaluated in the epoxidation of cyclohexene under ambient...
Article
Nanoscale materials are of a foremost desirability in functionalized materials research in almost all areas of science. Nanoscale materials with good biocompatibility and chemical stability possess biomedical usages which comprises drug carrier, cell/DNA parting, wastewater cleaning etc. Hence, magnesium-doped ZnO (Mg@ZnO) nanoparticles (NPs) were...
Article
Full-text available
Nickel(II)dibenzotetramethyltetraaza[14]annulene complex (Nitmtaa) was synthetized and immobilized on post amino-functionalized SBA-15 (N-SBA-15) to obtain a stable and reusable nanocatalyst named as Nitmtaa@N-SBA-15. Here (3-aminopropyl)triethoxysilane (APTES) was first grafted on the surface SBA-15, then Nitmtaa was added and coordinated on the s...
Article
In the current study, four new catalysts were synthetized by using TUD-1 mesoporous material as a support for bi-metallic Noble metals nanoparticles. M-Au-TUD-1 (M = Rh, Pd, Pt, and Ag) were prepared with a total metals loading of 2 wt% by applying the ratio of 1Au:1M. Several physical and chemical characterizations were performed to understand the...
Article
In this work, a simple chemical method for synthesis of Ag nanoparticles (NPs) incorporated on amine-functionalised mesoporous silica SBA-15 support (Ag/NH2-SBA-15) is reported for various dye degradation as the first time. The synthesised sample was characterised by powder XRD, BET surface area and pore size analyser, ICP-OES, XPS HRTEM, and HRSEM...
Article
Here, five different samples of neodymium (Nd) incorporated 3D‐mesoporous siliceous materials were fabricated using a single‐step hydrothermal technique. Typically, all samples were subjected to several qualitative elemental and quantitative analyses such as X‐ray diffraction, N2‐adsorption/desorption, scanning electron microscopy, energy dispersiv...
Article
Full-text available
Rhodium (Rh) nanoparticles were embedded in the mesopores of TUD-1 siliceous material and denoted as Rh-TUD-1. Five samples of Rh-TUD-1 were prepared with different loadings of Rh that ranged from 0.1 to 2 wt% using the sol-gel technique. The prepared samples were characterized by means of several chemical and physical techniques. The obtained char...
Article
Here, for the first time, neodymium was incorporated into the three-dimensional mesoporous siliceous material; TUD-1. In order to understand the chemical and morphological structure of the prepared material, several characterization techniques were performed. The characterization results showed the formation of highly distributed isolated Nd³⁺ ions...
Article
Herein, lead iodide (PbI2) nanorods/graphene oxide (GO) nanocomposites have been successfully achieved at low temperature via microwave-assisted syntheses route. The X-ray diffraction (XRD) analysis confirm good crystallinity and absence of any impurity in the prepared hybrid nanostructures which further confirmed through Raman analysis. The XRD an...
Article
Full-text available
Cadmium sulphide is known to have tremendous applications towards optoelectronic and nonlinear devices. Hence, here we have facilely casted the CdS films with diverse Se contents through low-cost spray pyrolysis technique. XRD study defends mono-phase formation of CdS having hexagonal system at all Se doping contents. Scherrer equation was employed...
Article
The facile synthesis of pristine and Terbium@Zinc oxide (Tb@ZnO) samples was produced by fast combustion route. The roughly spherical shaped morphology of Tb@ZnO was investigated by field emission scanning electron microscopy (FESEM) with agglomerated images of small size of particles. The dimension of particle shrinkages with increased the doping...
Article
Full-text available
This report, for the first time, demonstrated the low-temperature oxidation of carbon monoxide (CO) using nano-catalysts consisting of noble metal nanoparticles incorporated in TUD-1 mesoporous silica nano-structures synthesized via a one-pot surfactant-free sol-gel synthesis methodology. Herein, we investigated a nano-catalyst, represented as M-TU...