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Silica Support Affects the Catalytic Hydrogen Evolution by Silver
Author(s) -
Rolly Gifty Sara,
Sermiagin Alina,
Meyerstein Dan,
Zidki Tomer
Publication year - 2021
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202100208
Subject(s) - chemistry , catalysis , tafel equation , hydrogen , hydrolysis , silver nanoparticle , inorganic chemistry , nanoparticle , electron transfer , chemical engineering , photochemistry , organic chemistry , electrochemistry , electrode , engineering
Silica supported silver nanoparticles, SiO 2 ‐Ag 0 ‐NPs, catalyze the hydrolysis of BH 4 − . A comparison of the isotopic composition of the hydrogen formed in the hydrolysis of BD 4 − points out that the contribution of hydrides, the Heyrovsky mechanism, rather than that of hydrogen atoms, the Tafel mechanism, to the hydrogen evolution is considerably larger for the SiO 2 ‐Ag 0 ‐NPs catalyzed process than for the Ag 0 ‐NPs catalyzed process. This indicates some electron transfer from the SiO 2 to the silver that increases the negative charge on the Ag 0 ‐NPs.