Alternating Misfit Layered Transition/Alkaline Earth Metal Chalcogenide Ca3Co4O9 as a New Class of Chalcogenide Materials for Hydrogen Evolution

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F14%3A43897412" target="_blank" >RIV/60461373:22310/14:43897412 - isvavai.cz</a>

Result on the web

<a href="http://pubs.acs.org/doi/pdf/10.1021/cm501181j" target="_blank" >http://pubs.acs.org/doi/pdf/10.1021/cm501181j</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/cm501181j" target="_blank" >10.1021/cm501181j</a>

Result language

angličtina

Original language name

Alternating Misfit Layered Transition/Alkaline Earth Metal Chalcogenide Ca3Co4O9 as a New Class of Chalcogenide Materials for Hydrogen Evolution

Original language description

Layered misfit chalcogenide structures have garnered much attention and prestige in several applications such as thermoelectric materials and high-temperature superconductors. However, its potentials for important electrochemical applications such as hydrogen evolution and oxygen reduction reactions have not been systematically studied. Till date, such applications have mainly applied precious metal and oxides with perovskite- or spinel-based structures. In this work, we synthesized a misfit layered mixed oxide in the form of Ca3Co4O9 and investigated its structural, morphological, and electrochemical properties. The misfit layered Ca3Co4O9 has promising capabilities as electrocatalyst for hydrogen evolution and oxygen reduction processes. A Tafel slope of 87 mV/decade for hydrogen evolution reaction was achieved by Ca3Co4O9, while the overpotential for oxygen reduction reaction was lowered up to 38 mV in comparison to glassy carbon. Moreover, a comparably higher heterogeneous electron

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

CA - Inorganic chemistry

OECD FORD branch

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Project

<a href="/en/project/GA13-17538S" target="_blank" >GA13-17538S: Oxide Thermoelectric Materials for High Temperature Waste Heat Recovery</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

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

Name of the periodical

Chemistry of Materials

ISSN

0897-4756

e-ISSN

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Volume of the periodical

26

Issue of the periodical within the volume

14

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

4130-4136

UT code for WoS article

000339471400014

EID of the result in the Scopus database

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