The effect of surface modification by reduced graphene oxide on the electrocatalytic activity of nickel towards the hydrogen evolution reaction

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F15%3A43899929" target="_blank" >RIV/60461373:22310/15:43899929 - isvavai.cz</a>

Result on the web

<a href="http://pubs.rsc.org/en/content/articlepdf/2015/cp/c5cp04238k" target="_blank" >http://pubs.rsc.org/en/content/articlepdf/2015/cp/c5cp04238k</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c5cp04238k" target="_blank" >10.1039/c5cp04238k</a>

Result language

angličtina

Original language name

The effect of surface modification by reduced graphene oxide on the electrocatalytic activity of nickel towards the hydrogen evolution reaction

Original language description

To find cheap, efficient and durable hydrogen evolution reaction catalysts is one of the major challenges when developing an alkaline water electrolysis system. In this paper we describe an electrochemically reduced graphene oxide (RGO)-modified Ni electrode, which could be used as a pre-eminent candidate for such a system. The experimentally determined characteristics of this electrode showing superior electrocatalytic activity were complemented by density functional theory calculations. Thermodynamicconsiderations led to the conclusion that H atoms, formed upon H2O discharge on Ni, spill onto the RGO, which serves as an H adatom acceptor, enabling continuous cleaning of Ni-active sites and an alternative pathway for H-2 production. This mode of action is rendered by the unique reactivity of RGO, which arises due to the presence of O surface groups within the graphene structure. The significant electrocatalytic activity and life time (435 days) of the RGO towards the HER under condit

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CG - Electrochemistry

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Chemistry Chemical Physics

ISSN

1463-9076

e-ISSN

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Volume of the periodical

17

Issue of the periodical within the volume

40

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

26864-26874

UT code for WoS article

000362679300043

EID of the result in the Scopus database

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