學年
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109 |
學期
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1 |
出版(發表)日期
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2020-08-20 |
作品名稱
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Co‐Induced Electronic Optimization of Hierarchical NiFe LDH for Oxygen Evolution |
作品名稱(其他語言)
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著者
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Yanping Lin, Hao Wang, Chun‐Kuo Peng, Liangmin Bu, Chao‐Lung Chiang, Kai Tian, Yue Zhao, Jianqing Zhao, Yan‐Gu Lin, Jong‐Min Lee, Lijun Gao |
單位
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出版者
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著錄名稱、卷期、頁數
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Small, 16, 38, 2002426 |
摘要
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Developing efficient and stable non-noble electrocatalysts for the oxygen evolution reaction (OER) remains challenging for practical applications. While nickel–iron layered double hydroxides (NiFe-LDH) are emerging as prominent candidates with promising OER activity, their catalytic performance is still restricted by the limited active sites, poor conductivity and durability. Herein, hierarchical nickel–iron–cobalt LDH nanosheets/carbon fibers (NiFeCo-LDH/CF) are synthesized through solvent-thermal treatment of ZIF-67/CF. Extended X-ray adsorption fine structure analyses reveal that the Co substitution can stabilize the Fe local coordination environment and facilitate the π-symmetry bonding orbital in NiFeCo-LDH/CF, thus modifying the electronic structures. Coupling with the structural advantages, including the largely exposed active surface sites and facilitated charge transfer pathway ensured by CF, the resultant NiFeCo-LDH/CF exhibits excellent OER activity with an overpotential of 249 mV at 10 mA cm−1 as well as robust stability over 20 h. |
關鍵字
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語言
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en_US |
ISSN
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期刊性質
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國外 |
收錄於
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SCI
SSCI
Scopus
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產學合作
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通訊作者
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Jianqing Zhao, Jong‐Min Lee & Lijun Gao |
審稿制度
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是 |
國別
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USA |
公開徵稿
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出版型式
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,電子版 |
SDGS
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夥伴關係,可負擔的潔淨能源,產業創新與基礎設施
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