Co‐Induced Electronic Optimization of Hierarchical NiFe LDH for Oxygen Evolution
學年 109
學期 1
出版（發表）日期 2020-08-20
作品名稱 Co‐Induced Electronic Optimization of Hierarchical NiFe LDH for Oxygen Evolution
作品名稱（其他語言）
著者 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
出版者
著錄名稱、卷期、頁數 Small, 16, 38, 2002426
摘要 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
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI SSCI Scopus
產學合作
通訊作者 Jianqing Zhao, Jong‐Min Lee & Lijun Gao
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
SDGS 夥伴關係,可負擔的潔淨能源,產業創新與基礎設施