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Atomic-scale topochemical preparation of crystalline Fe3+-doped beta-Ni(OH)(2) for an ultrahighrate oxygen evolution reaction
Zhu, Kaiyue1,2; Liu, Huanying1; Li, Mingrun1; Li, Xuning2,3,4; Wang, Junhu2,3,4; Zhu, Xuefeng1; Yang, Weishen1
刊名JOURNAL OF MATERIALS CHEMISTRY A
2017-05-07
DOI10.1039/c7ta01408b
5期:17页:7753-7758
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]LAYERED DOUBLE HYDROXIDE ; WATER OXIDATION ; MOSSBAUER-SPECTROSCOPY ; PHASE-TRANSFORMATION ; NICKEL HYDROXIDES ; AIR BATTERIES ; NIFE ; ELECTROCATALYSTS ; FILM ; EFFICIENT
英文摘要The development of highly efficient and affordable electrocatalysts for the sluggish oxygen evolution reaction (OER) has been considered as a great challenge to the practical applications for water splitting and in rechargeable metal-air batteries. Herein, we report active and robust OER catalysts of Fe3+-doped beta-Ni(OH)(2) prepared via an atomic-scale topochemical transformation route. Based on the premise that all Fe3+ is incorporated into the beta-Ni(OH)(2) lattice, the OER activity increases directly with the content of Fe3+. The Fe(0.5)-doped beta-Ni(OH)(2) catalyst affords a current density of 10 mA cm(-2) at an overpotential as low as 0.26 V and a small Tafel slope of 32 mv dec(-1). Comparing the state-of-the-art IrO2 catalyst, the Fe(0.5)-doped beta-Ni(OH)(2) catalyst exhibits higher activity and stability from galvanostatic tests at 10 mA cm(-2). Additionally, we experimentally demonstrate that Fe(0.5)-doped beta-Ni(OH)(2) exerts higher OER activity than Fe(0.5)-doped alpha-Ni(OH)(2). All evidence indicates that Fe and the beta-Ni(OH)(2) matrix play an important role in NiFe-based catalysts.
语种英语
WOS记录号WOS:000400553700009
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/151983
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Catalysts & New Mat Aerosp, Dalian 116023, Peoples R China
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Zhu, Kaiyue,Liu, Huanying,Li, Mingrun,et al. Atomic-scale topochemical preparation of crystalline Fe3+-doped beta-Ni(OH)(2) for an ultrahighrate oxygen evolution reaction[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(17):7753-7758.
APA Zhu, Kaiyue.,Liu, Huanying.,Li, Mingrun.,Li, Xuning.,Wang, Junhu.,...&Yang, Weishen.(2017).Atomic-scale topochemical preparation of crystalline Fe3+-doped beta-Ni(OH)(2) for an ultrahighrate oxygen evolution reaction.JOURNAL OF MATERIALS CHEMISTRY A,5(17),7753-7758.
MLA Zhu, Kaiyue,et al."Atomic-scale topochemical preparation of crystalline Fe3+-doped beta-Ni(OH)(2) for an ultrahighrate oxygen evolution reaction".JOURNAL OF MATERIALS CHEMISTRY A 5.17(2017):7753-7758.
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