PR Selvakannan

PR Selvakannan
RMIT University | RMIT · Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Sciences

M.Sc Ph.D

About

116
Publications
24,813
Reads
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4,726
Citations
Citations since 2017
38 Research Items
2293 Citations
20172018201920202021202220230100200300400
20172018201920202021202220230100200300400
20172018201920202021202220230100200300400
20172018201920202021202220230100200300400
Additional affiliations
September 2009 - present
RMIT University
Position
  • Research Associate
March 2007 - June 2009
Université Paris-Sud 11
Position
  • Research Associate
March 2007 - June 2009
Université de Versailles Saint-Quentin
Position
  • Research Associate
Education
June 2001 - November 2005
CSIR - National Chemical Laboratory, Pune
Field of study
  • Physical and Materials Chemistry
July 1999 - May 2001
The American College, Madurai
Field of study
  • Chemistry
July 1996 - May 1999
The American College, Madurai
Field of study
  • Chemistry

Publications

Publications (116)
Chapter
Functional ceramic materials with magnetic, electronic, piezoelectric, superconducting and other dielectric properties constitute an important field of materials research. Indeed, their broad potential enables them to be applied in various applications and are hence considered to be ‘smart materials’. However, ceramics are one of the more difficult...
Chapter
The additive manufacture (AM) of plastic components can be accomplished by a variety of methods which are classified according to how material layers are consolidated layer-by-layer to create physical objects from digital data. Two of the most widely used methods include Material Extrusion (MEX) and Vat Photopolymerization (VP). These methods inclu...
Chapter
Once considered to be a field specific to mechanical sciences, additive manufacturing has now proliferated into all streams of science and swiftly becoming a true global phenomenon. Moving well beyond printing of customized prototypes and trinkets, many enterprises now manufacture using 3D printing at moderate to large scale. Massive improvements i...
Chapter
The emergence of additive manufacturing (AM) as an industry standard has brought unprecedented opportunity to many fields. Some examples of areas that particularly benefit from this technology include biological implantation, biomedicine, aerospace, advanced materials, automotive, tooling, and many chemical industries. This vast and growing sphere...
Chapter
Laser Powder Bed Fusion (L-PBF) is an additive manufacturing process which uses a scanning laser beam to selectively melt metal powder in a layer-wise manner to produce solid metal parts. In comparison to conventional subtractive or formative manufacturing processes, L-PBF imposes few design constraints on part geometry and requires low setup effor...
Article
Full-text available
Generation and fine-tuning of surface plasmon resonances is a prerequstite for several established and emerging applications such as photovoltaics, photocatalysis, photothermal therapy, surface-enhanced spectroscopy, sensing, superlensing and lasing. We present a low-cost and scalable lateral electrodeposition method for fabrication of high aspect...
Article
Light hydrocarbon olefin and paraffin gas mixtures are produced during natural gas or petrochemical processing. The petrochemical industry separates hydrocarbon gas mixtures by using an energy-intensive cryogenic distillation process, which accounts for 15% of global energy consumption [1]. The development of a new energy-saving separation process...
Article
Regenerative cooling paired with catalytic cracking of hydrocarbons can address thermal management and efficient fuel combustion in supersonic air streams, as a sustainable approach in developing high-speed flight vehicles. Solid acid catalyst promoted cracking of supercritical hydrocarbon fuels can combine physical and chemical heat sink capacitie...
Article
Major agricultural solid waste, rice husk (RH)-based mesoporous materials were prepared by potassium hydroxide (KOH) treatment of RH and RH hydrochar (RHH) produced at 180 °C with 20 min reaction time. In this study, RH was treated with three different methods: RH activation by KOH (KOH-RH), RH activation by KOH-aqueous silver (Ag)-shell nanopartic...
Article
Metal migration from 3D printed metal support into Zeolite film causes unprecedented catalytic cracking of methylcyclohexane
Chapter
The design and synthesis of surface engineered functional inorganic nanomaterials for environmental applications is a long-standing goal of biomimetic research. Further developments in using nanomaterials for environmental engineering applications rely upon their surface modification, efficient sensing, stability under harsh conditions, biocompatib...
Chapter
Catalytic hydrogenation of 1,3-butadiene to produce selectively 1-butene has considerable importance in the hydrocarbon industry and presents a significant challenge in tuning the catalyst selectivity towards 1-butene, understanding the reaction and kinetic mechanism. Selective hydrogenation over metal oxide-supported palladium catalysts is conside...
Article
Full-text available
Catalytic partial oxidation of methane to produce syngas were studied over calcined hydrotalcites of varying Mg/Al ratios supported Rh catalysts. Hydrotalcites of varying Mg/Al ratios were prepared using their hydroxide precursors and intercalating them with amino acid lysine. Upon calcination, these hydrotalcites converted into their mixed metal o...
Article
Full-text available
Catalytic dry reforming of methane using carbon dioxide (DRM) to produce CO rich syngas (synthesis gas) over supported nickel catalysts presents major challenges including the carbon deposition and active metal sintering at high operating temperatures. In this work, we have demonstrated that addition of rhodium and cobalt to the nickel phase suppor...
Article
The ability of the multidentate nucleobases, adenine and thymine, to coordinate polyoxometalate and metal ions leading to the formation of self-assembled nanostructures and their strong cytotoxicity toward cancer cell lines have been demonstrated. A unique synthetic approach is developed to make a series of functional nanoscale hybrid materials con...
Article
Full-text available
The recent implication of circular economy in Australia spurred the demand for waste material utilization for value-added product generations on a commercial scale. Therefore, this experimental study emphasized on agricultural waste biomass, rice husk (RH) as potential feedstock to produce valuable products. Rice husk biochar (RB) was obtained at t...
Article
Full-text available
Heterogeneous catalysts for CO2 reduction derived from porous, crystalline frameworks have emerged as efficient systems with comparable activity and superior selectivity to their inorganic counterparts. The spatial arrangement of active sites in such catalytically active frameworks is critical to their performance in CO2 reduction. This review pres...
Article
A demand for functionalization of novel materials and surfaces has accelerated the study of preparation methods for thin films and coatings. Preparation of catalytically active materials such as metal oxides, mixed oxides, zeolites and hydrotalcites in the form of thin films and coatings has led to chemical and physical properties widely different...
Article
The properties of oral tablets are normally related to the properties of the powders they contain. Characterization of oral tablets is important for the development of tablets with rapid and safe release of the active ingredient. In this study, a new formulation of naproxen sodium was prepared and dried using microwave drying (MWD) and the followin...
Article
The synthesis, reactivity and properties of a series of four polypyridyl ruthenium complexes have been studied. These complexes were used to post-functionalize preformed 3 nm silver and gold nanoparticles (NPs) in water and in dichloromethane (DCM). We studied the influence of the grafted complexes on the formation process and stability of the coll...
Article
A demand for functionalization of novel materials and surfaces has accelerated the study of preparation methods for thin film and coatings. Preparation of catalytically active materials such as metal oxides, mixed oxides, zeolites and hydrotalcites in the form of thin films and coatings has led to chemical and physical properties widely different f...
Article
Full-text available
Naproxen sodium is a common non-steroidal anti-inflammatory drug used as a painkiller or in the therapy of rheumatoid and arthritic diseases. Naproxen sodium is a dipole drug with high affinity towards the water. Therefore, this study aimed to investigate the impacts of high moisture content due to wet granulation, and drying processes on the textu...
Article
A series of 1,4-Dihydro pyrrole[3,2,b]pyrroles derivatives were synthesized to elucidate their structureproperty relationship and evaluate their feasibility as resistive memory elements. Smart structural modifications through judicious choice of functional groups was carried out to establish a rationale between molecular framework in a quadrupolar...
Article
Here we report a highly active and recyclable Cu−Fe based heterogeneous catalytic system for the oxidative coupling of benzyl alcohols as well as benzylamines with N‐substituted formamides. The Cu−Fe Metal Oxide (Cu−Fe MO) catalyst was prepared by a co‐precipitation method and was characterized by X‐ray diffraction ( XRD), X‐ray photoelectron spect...
Article
Full-text available
The study showcases a fused pyrrole derivative with volatile memory characteristics as a potential nanoscale data storage medium. The results presented by Samuel J. Ippolito, Pratyay Basak, and co‐workers in article number 1700626, are expected to provide key insights towards developing next‐generation high‐density data storage devices that are fle...
Article
A comprehensive understanding of resistive switching phenomenon and its dependence on molecular structure is imperative for enhancing the consistency and reliability of organic resistive memory (ORM) devices. Here, the efforts are directed to establish a premise for providing detailed insights into the molecular property, thin film assembly, and di...
Article
Gene delivery is the process of introducing foreign genetic material, such as DNA or RNA, into host cells. Gene therapy utilizes gene delivery to deliver genetic material with the goal of treating a disease or condition in the cell. Actual viral vectors may have side effects, while actual systems using metal nanoparticles for gene delivery are toxi...
Article
Full-text available
Drying of a pharmaceutical composition is an important step during its processing, which can affect its quality attributes including its texture, dispersion of the drug within the formulation, drug dissolution kinetics and eventually the drug's efficacy. This study presents the influence of varying drying techniques on the textural properties of th...
Article
The extent of moisture content (MC) present in pharmaceutical formulations has a vital role in controlling the textural properties of the pellet, dispersion of active component and its dissolution kinetics. In particular, hydrophilic drugs such as naproxen sodium (NapS) tend to absorb moisture readily which necessitates the selection of a drying te...
Article
The development of reliable and ultrasensitive detection marker for mercury ions (Hg(2+)) in drinking water is of great interest for toxicology assessment, environmental protection and human health. Although many Hg(2+) detection methods have been developed, only few offer sensitivities below 1pM. Herein, we describe a simple histidine (H) conjugat...
Article
Hydrotalcite-derived (HT-derived) oxide catalysts were synthesised from hydrotalcite-like (HT-like) materials prepared by co-precipitation method (Cu-Al, Cu-Fe, Mg-Al, Mg-Fe, Ni-Fe and Ni-Al) followed by calcination and their catalytic activity was studied for oxidative amidation of carboxylic acids and substituted benzaldehydes with N,N-dimethylfo...
Conference Paper
Full-text available
An environmentally friendly process for natural gas reforming is desireable in the context of methanol production. The catalytic dry reforming of methane with carbon dioxide (CO2 + CH4 → 2CO + 2H2, ΔH298 = 247 kJ/mol) has been considered to be one of the most promising alternatives to conventional steam reforming. This is primarily due to the simul...
Article
This review presents an insight into additive manufacturing (AM) technologies as they are applied to heterogeneous catalysis; the combination of these fields presents opportunities but also comes with challenges. AM enables greater design complexity, rapid prototyping, control over reactant stoichiometry and unique catalyst immobilisation options....
Article
The present study demonstrates a clean and green approach for the production of bio-fuel additives from renewable glycerol acetalization using microwave irradiation as heating method. Various transition metal ion (M = Fe-, Co-, Ni-, Cu- & Zn-) promoted mordenite solid acid catalysts were prepared by wet impregnation method and examined for the acet...
Article
A novel one-step microwave irradiation method has been introduced to synthesize 3-mercaptopropionic acid capped CdTe QDs (Quantum dots). The synthesis process required no special conditions such as an inert nitrogen atmosphere but was carried out using TeO2 (Tellurium oxide) as opposed to the Te powder, Na2TeO3 or Al2TeO3 usually used for the tellu...
Article
Solid mixed metal oxide derived from Cu-Fe-layered double hydroxide by its thermal decomposition at 600 °C has been demonstrated as novel ligand free catalyst for the synthesis of biphenyls through C-C coupling. The catalytic efficiency of this material has been studied by varying the solvents and bases, thereby their influence in controlling the p...
Article
Full-text available
A series of quadrupolar (A-π-D-π-A) tetra-aryl 1,4-dihydropyrrolo[3,2-b]pyrrole (DHPP) derivatives synthesized are showcased as potential organic resistive memory (ORM) devices for the first time. The experimental observations coupled with density functional theory (DFT) calculations probes in detail the role of terminal substituent groups (p-NH2,...
Article
The construction of highly efficient inorganic mimetic enzymes (nanozymes) is much needed to replace natural enzymes due to their instability and high cost. Recently, nanoscale CeO2 has been attracted significant interest due to its unique properties such as facile redox behaviour (Ce4+ ↔ Ce3+) and surface defects. In the present work, various amou...
Article
The selective production of 1,3-propanediol from glycerol under mild reaction conditions is of high interest. The current work describes the use of a highly selective catalyst consisting of platinum supported on mordenite zeolite employed for the first time for vapor phase hydrogenolysis of glycerol to 1,3-propanediol under atmospheric pressure. Th...
Article
Six different types of metallic and bimetallic nanoparticles (Au, Ag, Cu, AuAg, AuCu, and AgCu) were prepared using an aqueous extract of Artemisia scoparia (AS) as reducing and stabilizing agents and gelatin/metallic nanoparticle composite films were prepared. The nanoparticles (NPs) were characterized by UV-visible spectroscopy, TEM, XRD, zeta po...
Article
Thermal condensation reaction between the surface silanol groups of MCM-41 and FeCl3 led to the formation of nanocrystalline iron oxychloride (FeOCl) grafted MCM-41 and its role as an active Lewis acid site for the solvent-free multi-condensation reaction has been demonstrated. TGA/TGA-FTIR-GC-MS analysis of the FeCl3/MCM-41 material showed the rel...
Article
A series of MnOx/CeO2 (Mn/Ce), MnOx/ZrO2 (Mn/Zr), and MnOx/Ce0.75Zr0.25O2 (Mn/CZ) catalysts prepared by an impregnation method were tested for their ability to catalyse the oxidation of Hg0 at relatively low temperature (423 K). Various characterization techniques, namely, Brunauer–Emmett–Teller (BET) surface area analysis, X-ray diffraction (XRD),...
Conference Paper
Full-text available
More than 100 million tonnes of methanol (MeOH) is produced each year, most of which is used as a feed-stock for the production of other chemicals. But over past years methanol has become a subject of research as an emerging new source of energy and fuel. Industrial methanol production processes are generally classified into three groups: (1) conv...
Conference Paper
Full-text available
The reforming of methane is considered as one of the industrially important process for decades, as the process converts natural gas to valuable syngas (a mixture of H2 and CO). There are three major reforming processes, which are classified based on the energetics of the process and type of reforming agent. Catalytic steam reforming (endothermic r...
Article
We herein report the inherent antitumor efficiency of the self-assembled phytase enzyme nanospheres and enhance its efficiency by decorating it with platinum nanoparticles and with an anticancer drug curcumin. Firstly, controlled self- assembly of phytase enzyme in an Ionic Liquid 1-butyl-3-methylimidazolium tetrafluoroborate [Bmim][BF4], led to th...
Article
This study illustrates a facile strategy for efficient immobiolisation of enzymes on metal nanoparticle surface. The strategy proposed here enables enzymatic activity to be retained while increasing the enzyme thermostability. It is demonstrated that the use of a zwitterionic amino acid tyrosine as a reducing and capping agent to synthesise gold na...
Article
p-type Cu2O/n-type ZnO core/shell photo-catalysts has been demonstrated to be an efficient photocatalyst as a result of their interfacial structure tendency to reduce the recombination rate of photo-generated electron-hole pairs. Monodispersed Cu2O nanocubes were synthesized and functioned as the core, on which ZnO nanoparticles were coated as the...
Article
The electrostatic interaction between the negatively charged phosphate groups of plasmid DNA and the cationic part of hydrophobic ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim][PF6]), initiates spontaneous self-assembly to form the functional nanostructures made up of DNA and ionic liquid (IL). These functional nanostructures...
Article
The ultrafast transient optical response of gold nanorods presents a complex spectral signature that is very sensitive to the nanoparticle aspect ratio. This stems from the different electronic contributions to the photoinduced dynamics of the metal dielectric function, which modify the transverse and longitudinal localized plasmon modes. Here, we...
Article
This work illustrates a facile approach to synthesize silver nanoribbons from waste X-ray films using alkaline protease from Beauveria sp. MTCC 5184 (BAP). The green synthesized nanoribbons have been characterized by UV-Vis spectroscopy, TEM, and FTIR. The UV-visible spectra gave maximum absorbance at 400 nm. TEM micrograph showed well-dispersed si...
Article
Thermal decomposition of co-precipitated NiFeHT materials led to the formation a mesoporous NiFeHT catalyst and we have demonstrated here its active role as solid and active catalyst for the Knoevenagel condensation reaction of various aldehydes with active methylene compounds (RCH2CN, where RCN or CO2Et). High product yields are obtained at modera...
Article
The electrochemical formation of nanostructured materials is generally achieved by reduction of a metal salt onto a substrate that does not influence the composition of the deposit. In this work, we report that Ag, Au and Pd electrodeposited onto Cu under conditions where galvanic replacement is not viable and hydrogen gas is evolved results in the...
Article
Full-text available
Composite nanowires with gold core (Aucore) and polyaniline shell (PANIshell) were prepared using swollen liquid crystals (SLCs) as a soft, structure directing template. The composite nanowires were prepared by simply pouring the SLC containing AuCl3 over the SLC containing aniline. SLCs are generally formed by a quaternary mixture containing brine...
Conference Paper
Full-text available
Solid catalyst derived from Cu-Fe-HT was demonstrated to be a novel, ligandless, efficient and environmentally greener catalyst for the synthesis of diaryl sulphurs from the C–S cross coupling reaction of substituted thiols with different aryl halides. This catalyst has shown higher product yield in the presence of dimethyl formamide (as a solvent)...
Conference Paper
Full-text available
Development of stable and active catalysts for the CO2 dry reforming of methane received significant attention in the recent time, as this reaction converts two greenhouse gases into industrially important syn gas. In this context mono, bi, and tri-metallic catalysts of various compositions impregnated on different supports have been synthesized. F...
Article
Full-text available
In this work, we systematically investigated the structure–activity performance of nanosized Au/CeO2 and Au/Ce0.9Fe0.1O2−δ catalysts, along with nanocrystalline CeO2 and Ce0.9Fe0.1O2−δ supports, for the oxidation of carbon monoxide and benzylamine. An extensive physicochemical characterization was undertaken using XRD, BET surface area, BJH analysi...
Article
Full-text available
In this work, we systematically investigated the structure-activity performance of nanosized Au/CeO2 and Au/Ce0.9Fe0.1O2-δ catalysts, along with nanocrystalline CeO2 and Ce0.9Fe0.1O2-δ supports, for the oxidation of carbon monoxide and benzylamine. An extensive physicochemical characterization was undertaken using XRD, BET surface area, BJH analysi...
Conference Paper
New strategies to fabricate nanomaterials of desired physicochemical properties open up new avenues to use nanomaterials for diverse biological applications. In this context, we demonstrate a green and single step synthesis method to obtain monometallic gold and silver, and bimetallic gold-silver alloy nanoparticles with precise composition and sur...
Article
In this work the electrochemical formation of porous Cu/Ag materials is reported via the simple and quick method of hydrogen bubble templating. The bulk and surface composition ratio between Ag and Cu was varied in a systematic manner and was readily controlled by the concentration of precursor metal salts in the electrolyte. The incorporation of A...
Article
Full-text available
In this work, we systematically investigated the structure-activity performance of nanosized Au/CeO2 and Au/Ce0.9Fe0.1O2-δ catalysts, along with nanocrystalline CeO2 and Ce0.9Fe0.1O2-δ supports, for the oxidation of carbon monoxide and benzylamine. An extensive physicochemical characterization of the catalysts was undertaken using XRD, BET surface...
Article
We illustrate a new strategy to improve the antibacterial potential of silver nanoparticles (AgNPs) by their surface modification with the surface corona of biologically active polyoxometalates (POMs). The stable POM surface corona was achieved by utilising zwitterionic tyrosine amino acid as a pH-switchable reducing and capping agent of AgNPs. The...
Article
Full-text available
Antimicrobial action of nanomaterials is typically assigned to the nanomaterial composition, size and/or shape, whereas influence of complex corona stabilizing the nanoparticle surface is often neglected. We demonstrate sequential surface functionalization of tyrosine-reduced gold nanoparticles (AuNPs(Tyr)) with polyoxometalates (POMs) and lysine t...
Article
We illustrate a new strategy to improve the antibacterial potential of silver nanoparticles (AgNPs) by their surface modification with the surface corona of biologically active polyoxometalates (POMs). The stable POM surface corona was achieved by utilising zwitterionic tyrosine amino acid as a pH-switchable reducing and capping agent of AgNPs. The...
Article
The charge transfer-mediated surface enhanced Raman scattering (SERS) of crystal violet (CV) molecules that were chemically conjugated between partially polarized silver nanoparticles and optically smooth gold and silver substrates has been studied under off-resonant conditions. Tyrosine molecules were used as a reducing agent to convert silver ion...
Article
We herein report the inherent antitumor efficiency of the self-assembled phytase enzyme nanospheres and enhance its efficiency by decorating it with platinum nanoparticles and with an anticancer drug curcumin. Firstly, controlled self-assembly of phytase enzyme in an Ionic Liquid 1-butyl-3-methylimidazolium tetrafluoroborate [Bmim][BF4], led to the...