Effect of ordered and disordered phases of unsupported Ag3In nanoparticles on the catalytic reduction of p-nitrophenol

Autor:	Sebastian C. Peter, Lahari Balisetty, Pradeep P. Shanbogh, Sumanta Sarkar
Rok vydání:	2014
Předmět:	Polyvinylpyrrolidone Reducing agent Inorganic chemistry Selective catalytic reduction Catalysis chemistry.chemical_compound Nitrophenol Reaction rate constant chemistry Bromide medicine Physical and Theoretical Chemistry Stoichiometry medicine.drug
Zdroj:	Journal of Catalysis. 318:143-150
ISSN:	0021-9517
DOI:	10.1016/j.jcat.2014.07.018
Popis:	A detailed study has been done on the combined effect of the reaction time and the effect of surfactants namely, polyvinylpyrrolidone (PVP) and cetyltrimethylammonium bromide in the formation of ordered (Ag3In) and disordered (Ag0.75In0.25) phases. The catalytic activity of the samples has been checked for the reduction of para-nitrophenol (PNP) to para-aminophenol (PAP) using NaBH4 as the reducing agent. Ag3In obtained at shorter period using PVP as the surfactant showed better catalytic activity with a rate constant of 8.4 × 10−3 s−1 followed by a substantial decrease to 1.83 × 10−3 s−1 for the sample obtained at longer period. The observed trends in the catalytic activity have been explained based on the ordered–disordered structural transition, particle agglomeration and different stoichiometric ratios of Ag to In.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cee288d818f2330668599e643161375b https://doi.org/10.1016/j.jcat.2014.07.018 Zobrazit plný text záznamu Full Text from ScienceDirect