Iron and Nickel Mixed Oxides Derived From NiIIFeII-PBA for Oxygen Evolution Electrocatalysis
The sluggish kinetics of oxygen evolution reaction (OER) on anode hinders the efficiency of electrochemical water splitting. Electrocatalysts for OER based on non-precious transition metals are highly desirable. Herein, iron and nickel mixed oxides with surface oxygen vacancies were fabricated using...
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doaj-097eedd5abc7446eb319db5cff35099c2020-11-24T23:53:49ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462019-07-01710.3389/fchem.2019.00539479017Iron and Nickel Mixed Oxides Derived From NiIIFeII-PBA for Oxygen Evolution ElectrocatalysisZhuohong Xie0Chi Zhang1Xin He2Yi Liang3Dingding Meng4Jiaqi Wang5Ping Liang6Zhonghua Zhang7Zhonghua Zhang8School of Applied Physics and Materials, Wuyi University, Jiangmen, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, ChinaKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, ChinaThe sluggish kinetics of oxygen evolution reaction (OER) on anode hinders the efficiency of electrochemical water splitting. Electrocatalysts for OER based on non-precious transition metals are highly desirable. Herein, iron and nickel mixed oxides with surface oxygen vacancies were fabricated using NiIIFeII-Prussian blue analog as the precursors by a facile two-step thermal-assisted method. The precursor compositions and calcination temperatures exert great impact on the structure and morphology of the derivatives, as well as the electrocatalytic performances for OER. Both the higher content of Ni ions during the synthesis of precursors and lower calcination temperature favor the electrocatalytic performance of the corresponding derivatives. The porous metal oxides consisting of nickel oxide and nickel ferrite exhibited the remarkable electrocatalytic property toward OER in an alkaline solution, which can be attributed to the nanosized and porous structure, the co-existence of spinel NiFe2O4 and cubic NiO, the high content of surface oxygen vacancies, and the low charge transfer resistance. This study will provide new inspiration for the facile design of low-cost active catalysts for OER in the future.https://www.frontiersin.org/article/10.3389/fchem.2019.00539/fulloxygen evolution reactionoxygen vacancynickel ferritenickel oxidePrussian blue analog |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zhuohong Xie Chi Zhang Xin He Yi Liang Dingding Meng Jiaqi Wang Ping Liang Zhonghua Zhang Zhonghua Zhang |
spellingShingle |
Zhuohong Xie Chi Zhang Xin He Yi Liang Dingding Meng Jiaqi Wang Ping Liang Zhonghua Zhang Zhonghua Zhang Iron and Nickel Mixed Oxides Derived From NiIIFeII-PBA for Oxygen Evolution Electrocatalysis Frontiers in Chemistry oxygen evolution reaction oxygen vacancy nickel ferrite nickel oxide Prussian blue analog |
author_facet |
Zhuohong Xie Chi Zhang Xin He Yi Liang Dingding Meng Jiaqi Wang Ping Liang Zhonghua Zhang Zhonghua Zhang |
author_sort |
Zhuohong Xie |
title |
Iron and Nickel Mixed Oxides Derived From NiIIFeII-PBA for Oxygen Evolution Electrocatalysis |
title_short |
Iron and Nickel Mixed Oxides Derived From NiIIFeII-PBA for Oxygen Evolution Electrocatalysis |
title_full |
Iron and Nickel Mixed Oxides Derived From NiIIFeII-PBA for Oxygen Evolution Electrocatalysis |
title_fullStr |
Iron and Nickel Mixed Oxides Derived From NiIIFeII-PBA for Oxygen Evolution Electrocatalysis |
title_full_unstemmed |
Iron and Nickel Mixed Oxides Derived From NiIIFeII-PBA for Oxygen Evolution Electrocatalysis |
title_sort |
iron and nickel mixed oxides derived from niiifeii-pba for oxygen evolution electrocatalysis |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Chemistry |
issn |
2296-2646 |
publishDate |
2019-07-01 |
description |
The sluggish kinetics of oxygen evolution reaction (OER) on anode hinders the efficiency of electrochemical water splitting. Electrocatalysts for OER based on non-precious transition metals are highly desirable. Herein, iron and nickel mixed oxides with surface oxygen vacancies were fabricated using NiIIFeII-Prussian blue analog as the precursors by a facile two-step thermal-assisted method. The precursor compositions and calcination temperatures exert great impact on the structure and morphology of the derivatives, as well as the electrocatalytic performances for OER. Both the higher content of Ni ions during the synthesis of precursors and lower calcination temperature favor the electrocatalytic performance of the corresponding derivatives. The porous metal oxides consisting of nickel oxide and nickel ferrite exhibited the remarkable electrocatalytic property toward OER in an alkaline solution, which can be attributed to the nanosized and porous structure, the co-existence of spinel NiFe2O4 and cubic NiO, the high content of surface oxygen vacancies, and the low charge transfer resistance. This study will provide new inspiration for the facile design of low-cost active catalysts for OER in the future. |
topic |
oxygen evolution reaction oxygen vacancy nickel ferrite nickel oxide Prussian blue analog |
url |
https://www.frontiersin.org/article/10.3389/fchem.2019.00539/full |
work_keys_str_mv |
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