Silica Support Affects the Catalytic Hydrogen Evolution by Silver

Gifty Sara Rolly; Alina Sermiagin; Dan Meyerstein; Tomer Zidki

doi:10.1002/ejic.202100208

Silica Support Affects the Catalytic Hydrogen Evolution by Silver

Gifty Sara Rolly, Alina Sermiagin, Dan Meyerstein, Tomer Zidki

Department of Chemical Sciences

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Silica supported silver nanoparticles, SiO₂-Ag⁰-NPs, catalyze the hydrolysis of BH₄⁻. A comparison of the isotopic composition of the hydrogen formed in the hydrolysis of BD₄⁻ 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 SiO₂-Ag⁰-NPs catalyzed process than for the Ag⁰-NPs catalyzed process. This indicates some electron transfer from the SiO₂ to the silver that increases the negative charge on the Ag⁰-NPs.

Original language	English
Pages (from-to)	3054-3058
Number of pages	5
Journal	European Journal of Inorganic Chemistry
Volume	2021
Issue number	30
DOIs	https://doi.org/10.1002/ejic.202100208
State	Published - 13 Aug 2021

Keywords

HER
Heyrovsky mechanism
Isotopic hydrogen composition
Kinetics
NaBD
Silica support
Silver nanoparticles

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10.1002/ejic.202100208

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title = "Silica Support Affects the Catalytic Hydrogen Evolution by Silver",

abstract = "Silica supported silver nanoparticles, SiO2-Ag0-NPs, catalyze the hydrolysis of BH4−. A comparison of the isotopic composition of the hydrogen formed in the hydrolysis of BD4− 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 SiO2-Ag0-NPs catalyzed process than for the Ag0-NPs catalyzed process. This indicates some electron transfer from the SiO2 to the silver that increases the negative charge on the Ag0-NPs.",

keywords = "HER, Heyrovsky mechanism, Isotopic hydrogen composition, Kinetics, NaBD, Silica support, Silver nanoparticles",

author = "Rolly, \{Gifty Sara\} and Alina Sermiagin and Dan Meyerstein and Tomer Zidki",

note = "Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH",

year = "2021",

month = aug,

day = "13",

doi = "10.1002/ejic.202100208",

language = "אנגלית",

volume = "2021",

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T1 - Silica Support Affects the Catalytic Hydrogen Evolution by Silver

AU - Rolly, Gifty Sara

AU - Sermiagin, Alina

AU - Meyerstein, Dan

AU - Zidki, Tomer

PY - 2021/8/13

Y1 - 2021/8/13

N2 - Silica supported silver nanoparticles, SiO2-Ag0-NPs, catalyze the hydrolysis of BH4−. A comparison of the isotopic composition of the hydrogen formed in the hydrolysis of BD4− 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 SiO2-Ag0-NPs catalyzed process than for the Ag0-NPs catalyzed process. This indicates some electron transfer from the SiO2 to the silver that increases the negative charge on the Ag0-NPs.

AB - Silica supported silver nanoparticles, SiO2-Ag0-NPs, catalyze the hydrolysis of BH4−. A comparison of the isotopic composition of the hydrogen formed in the hydrolysis of BD4− 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 SiO2-Ag0-NPs catalyzed process than for the Ag0-NPs catalyzed process. This indicates some electron transfer from the SiO2 to the silver that increases the negative charge on the Ag0-NPs.

KW - HER

KW - Heyrovsky mechanism

KW - Isotopic hydrogen composition

KW - Kinetics

KW - NaBD

KW - Silica support

KW - Silver nanoparticles

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AN - SCOPUS:85111514126

SN - 1434-1948

VL - 2021

SP - 3054

EP - 3058

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 30

ER -

Silica Support Affects the Catalytic Hydrogen Evolution by Silver

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Keywords

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