Morphological modulation of CoFe-based metal organic frameworks for oxygen evolution reaction

被引：11
|
作者：
Hou, Xianbiao [1 ]
Zhou, Jian [1 ]
Xu, Xiujuan [1 ]
Wang, Xingkun [1 ]
Zhang, Shucong [1 ]
Wang, Huanlei [1 ]
Huang, Minghua [1 ]
机构：
[1] Ocean Univ China, Sch Mat Sci & Engn, Qingdao 266100, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2022年 / 165卷
基金：
中国国家自然科学基金;
关键词：
One-dimensional nanorod array; Catalysts; Morphological modulation; Metal-organic framework; Oxygen evolution reaction; ELECTROCATALYSTS; NANOSHEETS;
D O I：
10.1016/j.catcom.2022.106445
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The modulation of morphological structure associated with the change of metal composition within metal organic framework (MOF) is a facile and effective strategy to accelerate the charge transfer for enhancing the catalytic activity towards oxygen evolution reaction (OER). Here, we realized the morphological change of MOF by manipulating the Co composition within bimetallic CoxFe1-x-MOF. Impressively, the CoxFe1-x-MOFs with the one-dimensional nanorod array structure promoted the reaction kinetics of the catalysts. The optimized Co0.8Fe0.2-MOF composition showed a low overpotential of 237 mV at 10 mA/cm2 and a small Tafel slope of 36.3 mV/dec, which are superior than those of commercially RuO2 electrocatalysts.
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页数：7
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