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Introducing Fe2+ into Nickel-Iron Layered Double Hydroxide: Local Structure Modulated Water Oxidation Activity.
Cai, Zhao; Zhou, Daojin; Wang, Maoyu; Bak, Seong-Min; Wu, Yueshen; Wu, Zishan; Tian, Yang; Xiong, Xuya; Li, Yaping; Liu, Wen; Siahrostami, Samira; Kuang, Yun; Yang, Xiao-Qing; Duan, Haohong; Feng, Zhenxing; Wang, Hailiang; Sun, Xiaoming.
Afiliação
  • Cai Z; State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
  • Zhou D; Department of Chemistry and Energy Sciences Institute, Yale University, West Haven, CT, 06516, USA.
  • Wang M; State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
  • Bak SM; School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR, 97331, USA.
  • Wu Y; Chemistry Division, Brookhaven National Laboratory, Upton, NY, 11973, USA.
  • Wu Z; Department of Chemistry and Energy Sciences Institute, Yale University, West Haven, CT, 06516, USA.
  • Tian Y; Department of Chemistry and Energy Sciences Institute, Yale University, West Haven, CT, 06516, USA.
  • Xiong X; State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
  • Li Y; State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
  • Liu W; State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
  • Siahrostami S; State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
  • Kuang Y; Department of Chemistry and Energy Sciences Institute, Yale University, West Haven, CT, 06516, USA.
  • Yang XQ; SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA.
  • Duan H; State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
  • Feng Z; Chemistry Division, Brookhaven National Laboratory, Upton, NY, 11973, USA.
  • Wang H; Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK.
  • Sun X; School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR, 97331, USA.
Angew Chem Int Ed Engl ; 57(30): 9392-9396, 2018 Jul 20.
Article em En | MEDLINE | ID: mdl-29889350
ABSTRACT
Exploring materials with regulated local structures and understanding how the atomic motifs govern the reactivity and durability of catalysts are a critical challenge for designing advanced catalysts. Herein we report the tuning of the local atomic structure of nickel-iron layered double hydroxides (NiFe-LDHs) by partially substituting Ni2+ with Fe2+ to introduce Fe-O-Fe moieties. These Fe2+ -containing NiFe-LDHs exhibit enhanced oxygen evolution reaction (OER) activity with an ultralow overpotential of 195 mV at the current density of 10 mA cm-2 , which is among the best OER catalytic performance to date. In-situ X-ray absorption, Raman, and electrochemical analysis jointly reveal that the Fe-O-Fe motifs could stabilize high-valent metal sites at low overpotentials, thereby enhancing the OER activity. These results reveal the importance of tuning the local atomic structure for designing high efficiency electrocatalysts.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Ano de publicação: 2018 Tipo de documento: Article País de afiliação: China
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Ano de publicação: 2018 Tipo de documento: Article País de afiliação: China