CuCo2O4/Ti3C2Tx MXene hybrid electrocatalysts for oxygen evolution reaction of water splitting

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F22%3A00128150" target="_blank" >RIV/00216224:14310/22:00128150 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0925838822022022" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925838822022022</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2022.165811" target="_blank" >10.1016/j.jallcom.2022.165811</a>

Jazyk výsledku

angličtina

Název v původním jazyce

CuCo2O4/Ti3C2Tx MXene hybrid electrocatalysts for oxygen evolution reaction of water splitting

Popis výsledku v původním jazyce

Cobalt-based spinel oxides are promising candidates for oxygen evolution reaction (OER), however their limited electrical conductivity and low crystal stability may hinder further improvement. This report indroduces CuCo2O4 nanoparticles/Ti3C2Tx/nickel foam (NF) hybrid electrocatalyst as a robust electrode for OER, where the presence of the Ti3C2Tx MXene structure could enhance the electrical conductivity of the electrocatalysts. The ultra-thin hybrid structure with large surface area can effectively increase the number of electrochemically active sites and enhance the electrocatalytic performance. Experimental findings indicated that CuCo2O4/Ti3C2Tx hybrid structure on NF shows superior improved OER electrocatalytic activity compared to pristine Ti3C2Tx. Accordingly, hybrid elecrocatalyst not only showed a low overpotential of 1.67 V at 100 mA.cm2, and a small Tafel slope of 49 mV dec−1, but also exhebited an outstanding long-term durability.

Název v anglickém jazyce

CuCo2O4/Ti3C2Tx MXene hybrid electrocatalysts for oxygen evolution reaction of water splitting

Popis výsledku anglicky

Cobalt-based spinel oxides are promising candidates for oxygen evolution reaction (OER), however their limited electrical conductivity and low crystal stability may hinder further improvement. This report indroduces CuCo2O4 nanoparticles/Ti3C2Tx/nickel foam (NF) hybrid electrocatalyst as a robust electrode for OER, where the presence of the Ti3C2Tx MXene structure could enhance the electrical conductivity of the electrocatalysts. The ultra-thin hybrid structure with large surface area can effectively increase the number of electrochemically active sites and enhance the electrocatalytic performance. Experimental findings indicated that CuCo2O4/Ti3C2Tx hybrid structure on NF shows superior improved OER electrocatalytic activity compared to pristine Ti3C2Tx. Accordingly, hybrid elecrocatalyst not only showed a low overpotential of 1.67 V at 100 mA.cm2, and a small Tafel slope of 49 mV dec−1, but also exhebited an outstanding long-term durability.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

1873-4669

Svazek periodika

920

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000884181600001

EID výsledku v databázi Scopus

2-s2.0-85132744260