Realizing the Bifunctional Electrocatalysis via Local Charge Rearrangement of α-CrOOH-modulated Co@CoMoOx for Overall Water Splitting
學年 111
學期 1
出版（發表）日期 2023-01-15
作品名稱 Realizing the Bifunctional Electrocatalysis via Local Charge Rearrangement of α-CrOOH-modulated Co@CoMoOx for Overall Water Splitting
作品名稱（其他語言）
著者 Suh-Ciuan Lim; Chao-Lung Chiang; Chun-Kuo Peng; Wen-Bin Wu; Yu-Chang Lin; Yu-Ru Lin; Chi-Liang Chen; Yan-Gu Lin
單位
出版者
著錄名稱、卷期、頁數 Chemical Engineering Journal 452(4), 139715
摘要 Rational design of highly active, durable and cost-efficient bifunctional catalysts for electrochemical water splitting is critical for aggressive reform of energy technologies. Herein, earth-abundant transition-metal (TM) oxide-(oxy)hydroxide (Co@CoMoOx-α-CrOOH) is synthesized as overall water splitting catalyst via a facile electrodeposition approach. Detailed X-ray absorption spectra (XAS) reveal that incorporation of α-CrOOH can implicitly modulate the local coordination environment and the electronic structure of Co/Mo/Cr cations, as well as their synergistic interaction that contributes to more rapid charge-transfer kinetics and enhanced catalytic activity. The precisely designed Co@CoMoOx-α-CrOOH/NF electrode displays prominent overall water-splitting efficiency that require a cell voltage only 1.57 V to achieve 10 mA cm−2 along with remarkable stability over 24 h in alkaline solution, which is comparable to a Pt/C/ NF || IrO2/NF water-splitting device at the state of the art. This work provides a sustainable strategy to design efficient and cost-effective TM oxide-based catalysts for water-splitting application.
關鍵字 Bifunctional catalysts; Electrochemical water splitting; Transition-metal oxide-(oxy)hydroxide; α-CrOOHS; ynergistic interaction
語言 en
ISSN 1385-8947; 1873-3212
期刊性質 國外
收錄於 SCI SSCI Scopus
產學合作
通訊作者 Chi-Liang Chen; Yan-Gu Lin
審稿制度 是
國別 NLD
公開徵稿
出版型式 ,電子版,紙本
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