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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-17538S" target="_blank" >GA13-17538S: Oxidové termoelektrické materiály pro konverzi vysokoteplotního odpadního tepla</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Chemistry of Materials

ISSN

0897-4756

e-ISSN

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Svazek periodika

26

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

4130-4136

Kód UT WoS článku

000339471400014

EID výsledku v databázi Scopus

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