Dr. Basu Maan Daas
@nsmahavidyalaya.nic.in
Assistant Professor
Netaji Subhash Mahavidyalaya
Professor (Assistant) at Netaji Subhash Mahavidyalaya
EDUCATION
MSc (NET), BEd, PGDHE, PGDHRM, MBA, PhD
RESEARCH, TEACHING, or OTHER INTERESTS
Chemistry, Materials Science, Environmental Science, Multidisciplinary
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Basu M. Daas, Pradip Kr. Ghosh, Bikash Mandal, Susanta Ghosh, and I. Basumallick
Elsevier BV
Basu M. Daas and Susanta Ghosh
Current Science Association
Metal ion exchanged catalysts are known now and are successfully used for many catalytic processes. But supported metal nanoparticles on the zeolite bed, and their use as catalysts is still under experimental probe. ZSM-5 supported platinum nanoparticles are synthesized from in-situ chemical reduction of platinum chloride solution in the presence of zeolite, by zinc dust chemical reduction method which is comparatively ‘greener’. This platinum nanoparticle loaded ZSM-5 is studied in the role of catalyst in electrooxidation of methanol and ethanol using Nafion-117 to bind the catalyst on carbon felt. The platinum nanoparticle loaded ZSM-5 is found to be a better catalyst compared to pure ZSM-5 and pure platinum. This greener chemical reduction method can be used as the results show that zeolite modified catalysts are as good as those prepared by other less environment friendly methods, if not better.
Basu M. Daas and Susanta Ghosh
Springer Science and Business Media LLC
Basu Maan Daas and Susanta Ghosh
Wiley
AbstractDirect alcohol fuel cells are a promising source of future energy generation for small and portable devices. Platinum is considered the best catalyst for electro‐oxidation of alcohols in fuel cells but the major hurdles with platinum catalysts are high cost of platinum as well as low selectivity, slow reaction kinetics and carbonaceous poisoning associated with platinum. This particular research reports electro‐oxidation of methanol and ethanol over platinum electrodeposited on ZSM‐5 without any carbon additive. From the cyclic voltammetry and chronoamperometry, linear sweep voltammetry, tafel plot and multiple scan analyses, it is found that Pt/ZSM‐5/C electrodes can catalyze electro‐oxidation of methanol and ethanol with higher efficiency. ZSM‐5 supports the formation of smaller sized platinum nanoparticles in a dispersed manner on the zeolite support and thus increases the active surface area of the metal for catalytic activity. It favors adsorption of alcohol molecules on the modified electrode surface and thus increases the diffusion process. It also stabilizes the modified electrodes.
Basu M. Daas and S. Ghosh
Elsevier BV