The Chemical Properties of Hydrogen Atoms Adsorbed on M0Nanoparticles Suspended inAqueous Solutions: The Case of Ag0-NPs and Au0-NPs Reduced by BD4

Alina Sermiagin; Dan Meyerstein; Ronen Bar-Ziv; Tomer Zidki

doi:10.1002/ANGE.201809302

The Chemical Properties of Hydrogen Atoms Adsorbed on M⁰Nanoparticles Suspended inAqueous Solutions: The Case of Ag⁰-NPs and Au⁰-NPs Reduced by BD₄

Alina Sermiagin
, Dan Meyerstein
, Ronen Bar-Ziv
, Tomer Zidki

Department of Chemistry

Research output: Contribution to journal › Comment/debate

8 Scopus citations

Abstract

The nature of H-atoms adsorbed on M⁰-nanoparticles is of major importance in many catalyzed reduction processes.Using isotope labeling,wedetermined that hydrogen evolution from transient {(M⁰-NP)-H_n}ⁿ proceeds mainly via the Heyrovsky mechanism when nislarge (i.e., the hydrogens behave as hydrides) but mainly via the Tafel mechanism when nissmall (i.e., the hydrogens behave as atoms). Additionally, the relative contributions of the two mechanisms differ considerably for M = Au and Ag. The results are analogous to those recently reported for the M⁰-NP-catalyzed de-halogenation processes.

Original language	English
Pages (from-to)	16763-16766
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	130
Issue number	50
DOIs	https://doi.org/10.1002/ANGE.201809302
State	Published - 10 Dec 2018

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

hydrogen evolution
isotopic labeling
nanoparticles
reduction mechanism
sodium borohydride

ASJC Scopus subject areas

Catalysis
General Chemistry

Access to Document

10.1002/ANGE.201809302

Cite this

@article{7dc9fac2462e4157872d6d0230aeac09,

title = "The Chemical Properties of Hydrogen Atoms Adsorbed on M0Nanoparticles Suspended inAqueous Solutions: The Case of Ag0-NPs and Au0-NPs Reduced by BD4",

abstract = "The nature of H-atoms adsorbed on M0-nanoparticles is of major importance in many catalyzed reduction processes.Using isotope labeling,wedetermined that hydrogen evolution from transient \{(M0-NP)-Hn\}n proceeds mainly via the Heyrovsky mechanism when nislarge (i.e., the hydrogens behave as hydrides) but mainly via the Tafel mechanism when nissmall (i.e., the hydrogens behave as atoms). Additionally, the relative contributions of the two mechanisms differ considerably for M = Au and Ag. The results are analogous to those recently reported for the M0-NP-catalyzed de-halogenation processes.",

keywords = "hydrogen evolution, isotopic labeling, nanoparticles, reduction mechanism, sodium borohydride",

author = "Alina Sermiagin and Dan Meyerstein and Ronen Bar-Ziv and Tomer Zidki",

note = "Publisher Copyright: {\textcopyright} 2018 Wiley-VCH Verlag GmbH \&Co. KGaA, Weinheim.",

year = "2018",

month = dec,

day = "10",

doi = "10.1002/ANGE.201809302",

language = "English",

volume = "130",

pages = "16763--16766",

journal = "Angewandte Chemie - International Edition",

issn = "1433-7851",

publisher = "John Wiley and Sons Ltd",

number = "50",

}

TY - JOUR

T1 - The Chemical Properties of Hydrogen Atoms Adsorbed on M0Nanoparticles Suspended inAqueous Solutions

T2 - The Case of Ag0-NPs and Au0-NPs Reduced by BD4

AU - Sermiagin, Alina

AU - Meyerstein, Dan

AU - Bar-Ziv, Ronen

AU - Zidki, Tomer

PY - 2018/12/10

Y1 - 2018/12/10

N2 - The nature of H-atoms adsorbed on M0-nanoparticles is of major importance in many catalyzed reduction processes.Using isotope labeling,wedetermined that hydrogen evolution from transient {(M0-NP)-Hn}n proceeds mainly via the Heyrovsky mechanism when nislarge (i.e., the hydrogens behave as hydrides) but mainly via the Tafel mechanism when nissmall (i.e., the hydrogens behave as atoms). Additionally, the relative contributions of the two mechanisms differ considerably for M = Au and Ag. The results are analogous to those recently reported for the M0-NP-catalyzed de-halogenation processes.

AB - The nature of H-atoms adsorbed on M0-nanoparticles is of major importance in many catalyzed reduction processes.Using isotope labeling,wedetermined that hydrogen evolution from transient {(M0-NP)-Hn}n proceeds mainly via the Heyrovsky mechanism when nislarge (i.e., the hydrogens behave as hydrides) but mainly via the Tafel mechanism when nissmall (i.e., the hydrogens behave as atoms). Additionally, the relative contributions of the two mechanisms differ considerably for M = Au and Ag. The results are analogous to those recently reported for the M0-NP-catalyzed de-halogenation processes.

KW - hydrogen evolution

KW - isotopic labeling

KW - nanoparticles

KW - reduction mechanism

KW - sodium borohydride

UR - https://www.scopus.com/pages/publications/85111505578

U2 - 10.1002/ANGE.201809302

DO - 10.1002/ANGE.201809302

M3 - Comment/debate

AN - SCOPUS:85111505578

SN - 1433-7851

VL - 130

SP - 16763

EP - 16766

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 50

ER -