NDLI: Guest–host modulation of multi-metallic (oxy)hydroxides for superb water oxidation

Content Provider	Royal Society of Chemistry (RSC)
Author	Tang, Cheng Wang, Han-Sen Zhang, Qiang Wang, Hao-Fan Wei, Fei
Copyright Year	2016
Abstract	Multi-metallic (oxy)hydroxide materials are some of the most promising alternatives for superb water oxidation electrocatalysts. Herein, a series of graphene/NiFe (oxy)hydroxides were fabricated to investigate the role of the Fe/Ni ratio in regard to the resultant physical structures, decoration styles, and combined catalytic activities. With the Fe content increasing, a phase evolution from Fe doped Ni(OH)2/NiO(OH) to Ni doped FeO(OH) was demonstrated. The moderate guest-metal substitution into the host-oxyhydroxide framework (Fe into Ni or Ni into Fe) substantially enhanced the oxygen evolution activity with a decrease in both the Tafel slope and overpotential. In addition, the NiO(OH) and FeO(OH) frameworks exhibited distinct properties and performances for the oxygen evolution reaction due to the different metal–oxygen bond lengths and adsorption energies of the intermediates.
Starting Page	3210
Ending Page	3216
Page Count	7
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	4
Issue Number	9
Journal	Journal of Materials Chemistry A
DOI	10.1039/c6ta00328a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Tafel Hydroxide Graphene Oxygen evolution Overpotential Chemical bond Adsorption
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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Guest–host modulation of multi-metallic (oxy)hydroxides for superb water oxidation