A5001274885- Catalytic Processes in Materials Science
- Electrocatalysts for Energy Conversion
- Catalysis and Oxidation Reactions
- Catalysts for Methane Reforming
- Advanced Photocatalysis Techniques
- CO2 Reduction Techniques and Catalysts
- Advanced battery technologies research
- High-Temperature Coating Behaviors
- High Entropy Alloys Studies
- Copper-based nanomaterials and applications
- Electrochemical Analysis and Applications
- Advancements in Solid Oxide Fuel Cells
- Fuel Cells and Related Materials
- Chalcogenide Semiconductor Thin Films
- Ionic liquids properties and applications
- Industrial Gas Emission Control
- Perovskite Materials and Applications
- Electronic and Structural Properties of Oxides
- Carbon dioxide utilization in catalysis
- Graphene and Nanomaterials Applications
- Gas Sensing Nanomaterials and Sensors
- Graphene research and applications
- Membrane Separation Technologies
- Supercapacitor Materials and Fabrication
- Adsorption and Cooling Systems
Indian Institute of Technology Gandhinagar
2016-2025
Indian Institute of Technology Hyderabad
2024
Banasthali University
2024
Chandigarh University
2024
Government Medical College
2016-2023
Galgotias University
2022
Madan Mohan Malaviya University of Technology
2022
Vellore Institute of Technology University
2019
Institute of Engineering
2019
Government Medical College
2018
Conversion of carbon dioxide into selective hydrocarbon using a stable catalyst remains holy grail in the catalysis community. The high overpotential, stability, and selectivity use single-metal-based still remain challenge. In current work, instead pure noble metals (Ag, Au, Pt) as catalyst, nanocrystalline high-entropy alloy (HEA: AuAgPtPdCu) has been used for conversion CO2 gaseous hydrocarbons. Utilizing an approach multimetallic HEA, faradic efficiency about 100% toward products is...
Platinum nanoparticles with average diameters of 2−3 nm have been coated on multiwalled carbon nanotubes by controlled attachment an intermediate the walls nanotube. Reduction leads to formation platinum which are uniformly nanotubes. This composite shows excellent electrocatalytic activity toward methanol oxidation and hence is a candidate material for fuel cell applications. Cyclic voltammetry chronoamperometry studies indicate that these composites better compared commercial Pt−carbon...
To improve the optoelectronic properties of iron oxide as a photoelectrode, hematite (α-Fe2O3) thin films were doped with titanium using atmospheric pressure chemical vapor deposition (APCVD) for synthesis. The prepared by pyrolysis Fe(CO)5 and TiCl4 precursors on fluorine-doped tin (FTO) substrates found to have polycrystalline morphology faceted particulates ∼20 50 nm in size preferred crystallographic growth along [110] direction. performance photoanodes was measured function...
CO<sub>2</sub>methanation takes place through surface carbonate intermediates and depends on the degree of reduction ruthenium-doped ceria catalyst.
Hydrazine electrooxidation is an important reaction as it assists in decreasing the OER overvoltage. Herein, we report utilization of a high-entropy nanocatalyst alloy for hydrazine. The comprising five elements (Ag, Au, Pt, Pd, Cu) shows profound activity toward this molecule at low An intriguingly prepared by casting-cum-cryomilling method endowed with unique catalytic HzOR. A detailed analysis gaseous product points to formation nitrogen well oxygen oxidation product, sign accompanying...
The oxidation and reduction of Pd/ceria Pd/zirconia catalysts were investigated using pulse-reactor studies in which products monitored following step changes the reactant composition. results demonstrate that both ceria zirconia can be partially reduced by CO reoxidized CO2. Steady-state rates for methane reforming CO2 also measured on Pd/ceria, Pd/zirconia, Pd/silica. catalyst was slightly more active than ∼104 times as high activities are explained resulting from supports.
Effective, recyclable and yet inexpensive base catalysts have been developed by introducing hierarchical pore structures to aluminosilicate geopolymer, an emerging green material, modifying the material through calcium ion exchange.
The evolution of the modern world necessitates establishment diverse industrial sectors, but it is crucial to prioritize sustainability in process. Many these industries discharge organic pollutants indiscriminately into aqueous environments, contributing human and aquatic health consequences. incorporation advanced oxidation processes has emerged as a strategy for removing contaminants present wastewater. Sonolytic degradation, form process (AOP), effectively tackles wastewater, yet comes...
Combustion synthesized La2O3 and subsequently produced La(OH)3 are characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) Brunauer–Emmitt–Teller (BET) methods. The basicity of is utilized for Knoevenagel Hantzsch reactions. Reaction aldehydes with suitable substrates containing active methylene groups led to products in good excellent yields organic solvents, water under dry or solvent free conditions. Catalytic...
CO2 methanation is an important probe reaction to understand interactions with catalytic surfaces. The importance of this further increased by its association utilization. This study reports the mechanistic aspects over combustion synthesized Ru-substituted CeO2 catalyst. Temperature-programmed experiments were carried out interaction CO2, H2, and their stoichiometric mixture catalyst surface. In situ FTIR spectroscopy was used identify intermediates reaction. It observed that adsorption...
Co3O4 with spinel structure shows CO oxidation activity at very low temperature under dry conditions. This study aims finding the origin of unique catalytic Co species in based oxides. Although, octahedral site Co3+ have been reported to be active catalysts, there is no solid explanation as why so special compared other metals like Fe having similar redox states. In this study, mainly, three model catalysts including MnCo2O4, MnFe2O4, and CoCr2O4 chosen. A detailed analysis bulk crystal...
Sketch for the mechanism on basis of transient studies methane decomposition and CO 2 reaction with deposited carbon after CH 4 Co-substituted CeO .
The electroreduction of carbon dioxide (CO2) using copper-based catalysts presents an effective strategy for reducing greenhouse gas emissions while generating lucrative chemical feedstocks. Copper (Cu) has emerged as one the most efficient CO2 (CO2ER) due to its abundant availability, high selectivity, and low cost. extensively researched CO2ER always depend heavily on valence states copper. However, performance Cu can also vary significantly depending their crystallographic facets. In...
Highly mesoporous antimony-doped tin oxide (ATO) materials with three-dimensionally connected textural pores were prepared by a convenient one-pot process creating, drying and calcining hydrous ATO resorcinol–formaldehyde composite gels. The synthesis is designed to form gel structure first at room temperature upon subsequent heating 70 °C the inorganic network catalyzes full polymerization of resorcinol formaldehyde. resulting polymer interpenetrates serves as hard template during...
Nanoporous antimony-doped tin oxide (ATO) coatings with high surface area, optical transparency and electron transfer properties have been prepared using an interpenetrating inorganic–organic hybrid sol–gel approach. UV-Vis X-ray photoelectron spectroscopic studies were carried out on the materials in addition to characterization of their microstructures scanning microscopy, transmission nitrogen sorption experiments. Cyclic voltammetry (CV) impedance spectroscopy employed characterize...
Pt-supported La1–xSrxCoO3 and Pt-doped are synthesized using chemical reduction solution combustion method, respectively. Chemical is carried out formaldehyde as a reducing agent giving La1–xSrxCoO3. Solution method used to prepare Detailed characterization X-ray diffraction (XRD), photoelectron spectroscopy (XPS), Brunauer–Emmett–Teller (BET) surface area measurement, transmission electron microscopy (TEM) distinguish the compounds in terms of their morphology Pt oxidations states. TEM...
Adsorption of all the reactants and order addition play a key role in synthesis 1,4-diazepines depicting possibility Langmuir–Hinshelwood mechanism.