N.S. Kumar
Defence Research and Development Organisation
Nuclear chemistryAdsorptionNanoparticleCatalysisInorganic chemistryChemistryMaterials scienceProductivityCropping systemIndium(III) oxideSinteringActivated carbonChitosanOxideBET theoryRaman spectroscopyChemical engineeringCarbonPalladiumIndium
18Publications
5H-index
169Citations
Publications 24
Newest
#1Sanchita SilH-Index: 9
#2Ria Mukherjee (IISc: Indian Institute of Science)H-Index: 10
Last. Siva Umapathy (IISc: Indian Institute of Science)H-Index: 25
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#1Ansari Palliyarayil (DRDO: Defence Research and Development Organisation)H-Index: 2
#2Premkumar Selvarajan (University of Newcastle)H-Index: 1
Last. Sanchita Sil (DRDO: Defence Research and Development Organisation)H-Index: 9
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#1Ajayan Vinu (University of Newcastle)H-Index: 63
#2Ansari Palliyarayil (DRDO: Defence Research and Development Organisation)H-Index: 2
Last. Sanchita Sil (DRDO: Defence Research and Development Organisation)H-Index: 9
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#1Sanchita SilH-Index: 9
#2Ria MukherjeeH-Index: 10
Last. Siva UmapathyH-Index: 25
view all 4 authors...
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Abstract Synthesis of nanoparticles by green method is the most attractive alternative in nanoscience and technology as the process is environmentally benign, simple and cost effective. Metal nanoparticles (NPs) supported catalysts are effective for removing toxic gases such as carbon monoxide (CO). Activated carbon-based materials are generally used as support material for NP impregnation. This study investigates the room temperature oxidation of CO over palladium nanoparticles (PdNPs) impregna...
5 CitationsSource
Abstract Amongst the natural polymers, chitin is the second most abundant, present mainly in fungi and exoskeleton of crustaceans. It forms a major part of the seafood waste as compiled and presented in this review and is de-acetylated to produce chitosan. Structure and properties of chitosan have been described. Biocompatible and biodegradable characteristics of chitosan have been well studied. In addition to the environmental sustainability associated with its use, the malleability of chitosan...
110 CitationsSource
#1Sanchita SilH-Index: 9
#2Ria Mukherjee (IISc: Indian Institute of Science)H-Index: 10
Last. Siva UmapathyH-Index: 25
view all 4 authors...
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#1Pramila PatilH-Index: 9
#2Umesh T. Nakate (CBNU: Chonbuk National University)H-Index: 15
Last. N.S. KumarH-Index: 5
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Abstract Coating procedure for ceramic monoliths was optimized by wash coating with ϒ-alumina for the deposition of Au sensitized La–CeO2 catalyst. Effect of four different catalyst coating methods on ceramics monolith surface for toluene catalytic activity was investigated. Au sensitized La–CeO2 catalyst was prepared via wetness impregnation and co-precipitation chemical methods. The catalyst was characterized using XRD, FESEM, EDS, TEM, XPS, Raman, BET and Elemental mapping techniques. Nanopar...
5 CitationsSource
Abstract Palladium impregnated activated carbon (Pd/C) is an important catalyst for room temperature removal of carbon monoxide (CO). However, Pd/C are prone to deactivation, and reactivation for re-use of the catalyst becomes necessary from an economic point of view. Reactivation of Pd/C can be achieved by extracting the metal in a suitable media and subsequent re-impregnation on carbon support followed by liquid media reduction. Another method is by using suitable surface treatment of the deac...
2 CitationsSource