Prince AmaniampongFrench National Centre for Scientific Research | CNRS
Prince Amaniampong
PhD
About
66
Publications
17,156
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Introduction
Currently my research area explores the application of low frequency as well as high-frequency ultrasonic irradiation for catalytic materials synthesis towards the selective synthesis of bio-based chemicals, of industrial relevance and market value.
Additional affiliations
January 2012 - present
January 2011 - December 2011
May 2013 - April 2014
Position
- Research Assistant
Description
- Lecture students on the principles of partial molar volume and how to determine the partial molar volume of substances experimentally. Lecture students on the principles of diffusion theoretically and experimentally.
Publications
Publications (66)
The abatement of aromatic pollutants in water requires resource-intensive oxidation to nontoxic products by hydroxyl radicals (•OH). In this study, we elucidate the mechanisms of •OH-induced aromatic ring degradation by combining kinetic measurements, electron paramagnetic resonance spectroscopy, density functional theory (DFT) calculations, and ki...
Ultrasonic irradiation holds potential for the selective oxidation of non‐volatile organic substrates in the aqueous phase by harnessing hydroxyl radicals as chemical initiators. Here, a mechanistic description of hydroxyl radical‐initiated glyoxal oxidation is constructed by gleaning insights from photolysis and radiation chemistry to explain the...
Ultrasonic irradiation holds potential for the selective oxidation of non-volatile organic substrates in the aqueous phase by harnessing hydroxyl radicals as chemical initiators. Here, a mechanistic description of hydroxyl radical-initiated glyoxal oxidation is constructed by gleaning insights from photolysis and radiation chemistry to explain the...
Novel catalytic chemistry of demethylenation of benzyl alcohol to phenol is presented here using the synergy between an earth-abundant transition metal oxide (CuO) catalyst and high frequency ultrasound (HFUS). This...
Die N−H‐Bindung von NH3 kann in Kavitationsblasen gespalten werden, die durch hochfrequente Ultraschallbestrahlung erzeugt werden, was zur In situ‐Bildung eines Diimids führt, das dann die Hydrierung von Alkenen einleitet, wie François Jérôme et al. in ihrer Zuschrift berichten (DOI: 10.1002/ange.202212719). Vorteilhaft ist, dass diese Technik kein...
The N−H bond of NH3 can be cleaved within cavitation bubbles, generated by ultrasonic irradiation at a high frequency, leading to the in situ formation of a diimide, which then induces the hydrogenation of alkenes, as reported by François Jérôme et al. in their Communication (DOI: 10.1002/anie.202212719). Advantageously, this technique does not inv...
With the progressive defossilization of our industry, hydrogen (H2) has been identified as a central molecule to store renewable electricity. In this context, ammonia (NH3) is now rapidly emerging as a promising hydrogen carrier for the future. This game change indirectly impacts the field of fine chemistry where hydrogenation reactions are widely...
With the progressive defossilization of our industry, hydrogen has been identified as a central molecule to store renewable electricity. In this context, ammonia is now rapidly emerging as a promising hydrogen carrier for the future. This game change indirectly impacts the field of fine chemistry where hydrogenation reactions are widely deployed. I...
The drive for a sustainable society and a circular economy has motivated researchers around the globe to turn to the transformation of renewable raw materials like biomass into value-added products that are akin or superior to their fossil counterparts. Among these biomass raw materials, cocoa pod husks (CPH) which is the non-edible portion of coco...
The use of unconventional activation techniques, such as low frequency ultrasound (US), in combination with heterogeneous catalysts offers a powerful synergistic approach to transform renewable resources to value added chemicals. In this context, we report a catalytic base-free strategy for the selective oxidation of microcrystalline cellulose to o...
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ABSTRACT
Hydrazine is a chemical of utmost importance in our society, either for organic synthesis or energy use. The direct conversion of NH3 to hydrazine is highly appealing, but it remains a very difficult task because the degradation of hydrazine is thermodynamically more feasible than the cleavage of the N−H bond of NH3. As a...
No PDF available
ABSTRACT
Within the context of sustainable chemistry, sonochemistry is now emerging as an alternative unconventional technology in catalysis. While ultrasound-generated radicals can participate in chemical reactions, mastering the reaction selectivity of polyfunctional substrates remains an elusive task. To address this challenge,...
Ammonia has been converted to hydrazine, a chemical of utmost importance for organic synthesis and energy purpose. In their Communication (DOI: 10.1002/anie.202109516), François Jérôme et al. report that cavitation bubbles, created by ultrasonic irradiation of aqueous ammonia at a high frequency, act as micro-reactors to activate and convert ammoni...
Ammoniak kann in Hydrazin umgewandelt werden, eine Chemikalie von größter Bedeutung für die organische Synthese und für Energiezwecke. In ihrer Zuschrift (DOI: 10.1002/ange.202109516) berichten François Jérôme et al., dass Kavitationsblasen, die durch Ultraschallbestrahlung von wässrigem Ammoniak mit hoher Frequenz erzeugt werden, als Mikroreaktore...
Hydrazine is a chemical of utmost importance in our society, either for organic synthesis or energy use. The direct conversion of NH3 to hydrazine is highly appealing, but it remains a very difficult task because the degradation of hydrazine is thermodynamically more feasible than the cleavage of the N−H bond of NH3. As a result, any catalyst capab...
Hydrazine is a chemical of outmost importance in our society, either for organic synthesis or energy purpose. The direct conversion of NH 3 to hydrazine is highly appealing but it remains a very difficult task because the degradation of hydrazine is thermodynamically more feasible than the cleavage of the N-H bond of NH 3 . As a result, any catalys...
The main purpose of the Special Issue is to show the current progress in the development of bifunctional catalysts for variety of reactions. These include, but are not limited to, hydrogenation, oxidation, hydrolysis, fast pyrolysis, hydroprocessing, oxidation, (trans)esterification, amination, dehydration, and isomerization. This Special Issue als...
Since its first discovery in 1839, perovskite materials have received strong research interests and are gaining tremendous developments over the past and recent decades. Nowadays, they are being recognized among the most promising materials in renewable energy sources, energy storage, and pollutant degradation of the 21st century due to their super...
In this study, a Pd-based catalytic model over a nitrogen enriched fibrous Porous-Organic-Polymer (POP) is established to execute hydrodeoxygenation of various vegetable oils in producing potential large-scale renewable diesel. Here we report a cost-effective synthesis strategy for a new microporous hypercros-slinked POP through the FeCl3 assisted...
In the continuous search for improved synthetic pathways,
a vast array of activation methods have thus been developed, with
chemical catalysis being one the most popular. Unconventional
activation techniques offer important possibilities in comparison
with chemical synthesis, particularly when focusing on
environmentally friendly synthetic methods...
Lignocellulosic biomass represents an important chemical resource. In the quest for the heightened interest for waste management and the successful utilization of solid waste materials into useful products, cocoa pod husk, an agricultural waste material generated in several metric per year (~ 800, 000 MT/per) is a potential source of lignocellulosi...
In recent years, the drive toward a sustainable economy has challenged the scientific community to pursue ambitious investigations to convert sustainable feedstocks such as lignocellulose into useful products. These products include biofuels, commodity chemicals, and new bio-based materials including bioplastics, which offer a potential substitutio...
For the sustainable production of fuel, biomass pyrolysis processes have appeared as a promising alternative for the efficient utilization of biomass. The liquid product obtained from biomass pyrolysis, i.e., bio-oil has a very complex composition including large proportion of organic oxygenated hydrocarbon compounds and appreciable amount of water...
In this study, Pd-based catalytic model hosted over nitrogen enriched fibrous Porous-Organic-Polymer (POP) is established to execute hydrodeoxygenation of various vegetable oils in producing potential large-scale renewable diesel. Here we report a cost effective synthesis strategy of a new microporous hypercrosslinked POP through the FeCl3 assisted...
The depolymerization of cellulose to glucose is a challenging reaction and often constitutes a scientific obstacle in the synthesis of downstream bio-based products. Here, we show that cellulose can be selectively depolymerized to glucose by ultrasonic irradiation in water at a high frequency (525 kHz). The concept of this work is based on the gene...
Soil quality (SQ) evaluation is an essential tool for the enhancement of agricultural soil management and use. An array of soil attributes, termed soil quality indicators, are used in soil quality estimation due to their sensitivity to disturbance from management practices. Therefore, the objective of this study was to assess the soil quality (usin...
Through selected examples, we report here that ultrasound is capable of assisting a solid catalyst in various reactions. Beside improvement of heat and mass transfer induced by the implosion of cavitation bubbles, we show that a synergistic effect can occur between catalysis and ultrasound. In particular, the physical and chemical effects locally e...
We report here, and rationalize, a synergistic effect between a non-noble metal oxide catalyst (CuO) and high frequen-cy ultrasound (HFUS) on glucose oxidation. While CuO and HFUS are able to independently oxidize glucose to glucon-ic acid, the combination of CuO with HFUS led to a dramatic change of the reaction selectivity, with glucuronic acid b...
To investigate metal oxide surface catalysis, determining an appropriate Hubbard U-correction term is a challenge for the density functional theory (DFT) community and identifying realistic reaction intermediates and their corresponding X-ray photoelectron spectroscopy (XPS) shifts is a challenge for experimental researchers, when these methods are...
Invited for this month′s cover is the group of François Jérôme at the University of Poitiers. The image shows that the anomeric position of carbohydrates was successfully activated by high frequency ultrasound, without any catalyst or protective agent. The Communication itself is available at 10.1002/cssc.201801137. “The progressive introduction of...
The Front Cover illustrates how the ultrasonic irradiation of an alcoholic solution of carbohydrates at high frequency can induce their conversion to alkylpolyglycosides at only 40°C, and with high yields, selectivity, and space‐time yield. The elucidation of the structure of all the produced glycosides strongly suggests that 1,6‐anhydrosugars form...
Nanostructured mesoporous titanium dioxide (TiO 2) particles with high specific surface area and average crystallite domain sizes within 2 nm and 30 nm have been prepared via the sol-gel and hydrothermal procedures. The characteristics of produced nanoparticles have been tested using X-Ray Diffraction (XRD), BrunauereEmmetteTeller (BET) surface are...
The irradiation of concentrated feeds of carbohydrates in alcoholic solution by high frequency ultrasound (550 kHz) induces the formation of alkylpolyglycosides (APG). This work is distinct from previous reports in that (1) it does not involve any (bio)catalyst or activating agent, (2) it takes place at only 40 °C, thus avoiding degradation of carb...
The utilization of low frequency ultrasound (US) offers a straightforward and powerful tool for the production of nanostructured materials, in particular structurally stable, highly crystalline, and shape-controlled catalytic materials. Herein, we report an unconventional strategy for the synthesis CuO nanoleaves within 5 min of US irradiation time...
Here, we investigated that the mechanocatalytic depolymerization of cellulose in the presence of Aquivion, a sulfonated perfluorinated ionomer. Under optimized conditions, yields of water soluble sugars of 90–97% were obtained using Aquivion PW98 and PW66, respectively, as a solid acid catalyst. The detailed characterization of the water soluble fr...
Bio-Oils derived from biomass pyrolysis are promising feedstock for the direct production of valuable platform chemicals, fuels and energy from renewable and sustainable resources. Among the numerous technologies utilized for biomass pyrolysis, fast pyrolysis technologies are chosen for liquid products yield maximization, and characterized by short...
This chapter is focused on the use of high intensity ultrasound for the preparation of nanostructured materials with an emphasis on recent prominent examples of the production of dense or porous metal oxides through sonochemical and ultrasonic spray pyrolysis routes. Sonochemistry enables the synthesis of oxides that are often unachievable by tradi...
This chapter is focused on the use of high intensity ultrasound for the preparation of nanostructured materials with an emphasis on recent prominent examples of the production of dense or porous metal oxides through sonochemical and ultrasonic spray pyrolysis routes. Sonochemistry enables the synthesis of oxides that are often unachievable by tradi...
Green Chemistry for Sustainable Biofuel Production is an important volume that emphasizes green chemistry and green engineering principles for sustainable process development. It creates an enriching knowledge base on green chemistry of biofuel production, sustainable process development, and green engineering principles for renewable fuel producti...
This systematic experimental investigation reveals that high-frequency ultrasound irradiation (550 kHz) induced oxidation of D-glucose to glucuronic acid in excellent yield without assistance of any (bio)catalyst. Oxidation is induced thanks to the in situ production of radical species in water. Experiments show that the dissolved gases play an imp...
Porous-structured CuO-CeO2 nanospheres were synthesized using a hydrothermal method and were tested as catalysts for the direct oxidation of cellobiose to gluconic acid. Catalytic reaction along with catalyst characterization results and 18O-oxygen isotope labeled experiments revealed that the surface lattice oxygen of CuO in CuO-CeO2 nanospheres w...
A detailed physicochemical properties of aqueous solutions of alizarin red S − tin (II) chloride, has been thoroughly investigated by extensively exploring the effect of pH, concentration and temperature on the optimal conditions for the formation of tin (II)-alizarin red S (ARS-Sn II) complex. UV-Vis spectra, electrical conductivity and pH method...
Conjugated microporous polymers are synthesized through facile one-step direct arylation polymerization of a single monomer unit, 8,11-dibromodithieno[3,2-a:2′,3′-c]phenazine, without preactivation of C-H bonds using organometallic reagents. The resulting polymers exhibit hierarchical porous structures and a narrow bandgap of 1.5 eV.
Titania nanowires (NW) supported gold–copper (Au–Cu) bimetallic nanoparticles were synthesized and pretreated in hydrogen and air at 300, 500 and 700 • C, for the one-pot conversion of cellobiose to glu-conic acid. Catalyst samples were characterized by temperature-programmed desorption of NH 3 , Fourier transform infrared spectroscopy (FT-IR), Ene...
An integrated experimental and computational investigation reveals that surface lattice oxygen of copper oxide (CuO) nanoleaves activates the formyl CH bond in glucose and incorporates itself into the glucose molecule to oxidize it to gluconic acid. The reduced CuO catalyst regains its structure, morphology, and activity upon reoxidation. The acti...
An integrated experimental and computational investigation reveals that surface lattice oxygen of copper oxide (CuO) nanoleaves activates the formyl CH bond in glucose and incorporates itself into the glucose molecule to oxidize it to gluconic acid. The reduced CuO catalyst regains its structure, morphology, and activity upon reoxidation. The activ...
In order to reduce considerable emissions of N-containing pollutants from combustion of sewage sludge derived solid fuel, an integrated system of hydrothermal deamination and air stripping was developed to effectively remove and recover nitrogen from dewatered sewage sludge (DSS). Three characteristic hydrothermal regimes contributing to deaminatio...
A series of Au–M (M = Cu, Co, Ru and Pd) bimetallic catalysts were supported on TiO2 via a deposition–precipitation (DP) method, using urea as a precipitating agent. The resulting catalysts were employed in the
catalytic oxidation of cellobiose to gluconic acid and the properties of these catalysts were carefully examined
using various characteriza...
A series of bimetallic catalysts Au-M (M = Cu, Co, Ru, Pd and Ni) were supported on TiO2 via deposition-precipitation (DP) method using urea as precipitating agent. The resulting catalysts were used in the catalytic oxidation of cellobiose into gluconic acid. The interactions between the metals in the bimetallic catalysts were carefully investigate...
Currently, levulinic acid (LA) and formic acid (FA) are considered as important carbohydrates for the production of value-added chemicals. Their direct production from biomass will open up a new opportunity for the transformation of biomass resource to valuable chemicals. In this study, one-pot transformation of cellobiose into LA and FA was demons...
Titania-supported gold nanoparticles were prepared by using the deposition–precipitation method, followed by reduction under a hydrogen flow. The catalytic activity of these as-prepared catalysts was explored in the oxidation of cellobiose to gluconic acid with molecular oxygen, and the properties of these catalysts were examined by using XRD, TEM,...
Recent increase of biodiesel potential is not only in the number of plants, but also in the size of the facilities and the choice of catalysts used as well as the raw material feedstock in order to reduce the overall production cost of the biodiesel process. The tremendous growth in the biodiesel industry is expected to have a significant impact on...
Questions
Question (1)
Chemistry of Bio-Based Furan Polymers and Its Derivatives: From Synthesis to Application
Call for Papers
Furan and its derivatives are ubiquitous in nature in a wide variety of structures and can be found in modest amounts within specific vegetable and animal species. The interest in these compounds is mostly relevant to phytochemists and synthetic product practitioners. The chemistry associated with the furan heterocycle has been the subject of extensive studies over the last century and is still a very active field of research, due to its important repercussions in areas such as synthons, pharmaceuticals and other fine chemicals, liquid crystals, and polymer science and technology.
Due to the increasing interest in a sustainable society, researchers are now focusing on the synthesis of renewable polymers with properties akin to those derived from fossil fuels. In light of this, the synthesis of bio-based polymers, especially furan-based polymers, is highly desired due to their unique applications as an important building block for the synthesis of many important pharmaceutical products. In addition, among the classes of heteroaromatic compounds, the aromatic furan system is a familiar motif in many natural products. Thus there is a need to encourage and promote research-based furan cycle synthesis and applications.
This special issue aims to collect research and review articles that focus on the chemistry of bio-based furan cycles, its syntheses, reactivity and applications via enzymatic, and homogeneous or heterogeneous catalysis, either experimentally or computationally. This special issue also aims to collect studies related to polymers prepared from furan monomers and its derivatives and review articles which describe the current state of the art of furan cycle chemistry.
Potential topics include but are not limited to the following:
Polymerisation of furan compounds for pharmaceutical applications
Catalytic hydrolysis of cellulose into furans in ionic liquid system
Catalytic hydrogenation of furan polymer
Free radical, cationic, and anionic polymerization of furan monomers compounds
Application of furan polymers
Authors can submit their manuscripts through the Manuscript Tracking System at https://mts.hindawi.com/submit/journals/ijps/cbbfc/.
Submission Deadline Friday, 31 May 2019
Publication Date October 2019
Papers are published upon acceptance, regardless of the Special Issue publication date.
Lead Guest Editor
Prince Nana Amaniampong, University of Poitiers, Poitiers, France
Guest Editors
Ayman Karam, University of Poitiers, Poitiers, France
Quang Thang Trinh, Nanyang Technological University, Singapore
Nana Yaw Asiedu, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
