Mo-Triggered amorphous Ni3S2 nanosheets as efficient and durable electrocatalysts for water splitting

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F18%3A63521431" target="_blank" >RIV/70883521:28610/18:63521431 - isvavai.cz</a>

Result on the web

<a href="http://pubs.rsc.org/en/Content/ArticleLanding/2018/QM/C8QM00178B" target="_blank" >http://pubs.rsc.org/en/Content/ArticleLanding/2018/QM/C8QM00178B</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c8qm00178b" target="_blank" >10.1039/c8qm00178b</a>

Result language

angličtina

Original language name

Mo-Triggered amorphous Ni3S2 nanosheets as efficient and durable electrocatalysts for water splitting

Original language description

Exploring efficient non-noble materials as hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) bifunctional electrocatalysts is of great importance for overall water splitting. Herein, we report a low-temperature and rapid synthesis of Mo-triggered amorphous Ni3S2 nanosheets as such dual-function electrocatalysts for the first time by a simple solid-phase melting strategy. It is found that Mo engineering can not only dramatically enhance the adsorption ability of Ni active sites to the active intermediates of HER, but also generate more targeted intermediates for OER. The resulting a-Mo-Ni3S2 catalysts demonstrate exceptionally high HER/OER activity and stability in alkaline media, outperforming the baseline commercial noble-metal (Pt, IrO2 and RuO2) and other reported advanced electrocatalysts to date. A two-electrode electrolyzer assembled using the a-Mo-Ni3S2 electrocatalysts can afford a current density of 1000 mA cm(-2) at a voltage of only 1.97 V which is stable for over 300 h. This work provides a feasible tactic to develop efficient and durable bifunctional electrocatalysts by engineering on surfaces and nanostructures.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10404 - Polymer science

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Materials Chemistry Frontiers

ISSN

2052-1537

e-ISSN

—

Volume of the periodical

2

Issue of the periodical within the volume

8

Country of publishing house

GB - UNITED KINGDOM

Number of pages

5

Pages from-to

1462-1466

UT code for WoS article

000440019000006

EID of the result in the Scopus database

2-s2.0-85057652399