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Ir 4+ -Doped NiFe LDH to expedite hydrogen evolution kinetics as a Pt-like electrocatalyst for water splitting

NiFe-layered double hydroxide (NiFe LDH) is a state-of-the-art oxygen evolution reaction (OER) electrocatalyst, yet it suffers from rather poor catalytic activity for the hydrogen evolution reaction (HER) due to its extremely sluggish water dissociation kinetics, severely restricting its application... Full description

Journal Title: Chemical Communications 2018, Vol.54(49), pp.6400-6403
Main Author: Chen, Qian-Qian
Other Authors: Hou, Chun-Chao , Wang, Chuan-Jun , Yang, Xiao , Shi, Rui , Chen, Yong
Format: Electronic Article Electronic Article
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ID: ISSN: 1359-7345 ; E-ISSN: 1364-548X ; DOI: 10.1039/c8cc02872a
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title: Ir 4+ -Doped NiFe LDH to expedite hydrogen evolution kinetics as a Pt-like electrocatalyst for water splitting
format: Article
creator:
  • Chen, Qian-Qian
  • Hou, Chun-Chao
  • Wang, Chuan-Jun
  • Yang, Xiao
  • Shi, Rui
  • Chen, Yong
subjects:
  • Catalysis
  • Chemical Evolution
  • Catalytic Activity
  • Hydroxides
  • Water Splitting
  • Iron Compounds
  • Nickel Compounds
  • Reaction Kinetics
  • Hydrogen Evolution
  • Intermetallic Compounds
ispartof: Chemical Communications, 2018, Vol.54(49), pp.6400-6403
description: NiFe-layered double hydroxide (NiFe LDH) is a state-of-the-art oxygen evolution reaction (OER) electrocatalyst, yet it suffers from rather poor catalytic activity for the hydrogen evolution reaction (HER) due to its extremely sluggish water dissociation kinetics, severely restricting its application in overall water splitting. Herein, we report a novel strategy to expedite the HER kinetics of NiFe LDH by an Ir 4+ -doping strategy to accelerate the water dissociation process (Volmer step), and thus this catalyst exhibits superior and robust catalytic activity for finally oriented overall water splitting in 1 M KOH requiring only a low initial voltage of 1.41 V delivering at 20 mA cm 2 for more than 50 h.
language:
source:
identifier: ISSN: 1359-7345 ; E-ISSN: 1364-548X ; DOI: 10.1039/c8cc02872a
fulltext: fulltext
issn:
  • 1359-7345
  • 1364-548X
  • 1364548X
  • 13597345
url: Link


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titleIr 4+ -Doped NiFe LDH to expedite hydrogen evolution kinetics as a Pt-like electrocatalyst for water splitting
creatorChen, Qian-Qian ; Hou, Chun-Chao ; Wang, Chuan-Jun ; Yang, Xiao ; Shi, Rui ; Chen, Yong
ispartofChemical Communications, 2018, Vol.54(49), pp.6400-6403
identifier
descriptionNiFe-layered double hydroxide (NiFe LDH) is a state-of-the-art oxygen evolution reaction (OER) electrocatalyst, yet it suffers from rather poor catalytic activity for the hydrogen evolution reaction (HER) due to its extremely sluggish water dissociation kinetics, severely restricting its application in overall water splitting. Herein, we report a novel strategy to expedite the HER kinetics of NiFe LDH by an Ir 4+ -doping strategy to accelerate the water dissociation process (Volmer step), and thus this catalyst exhibits superior and robust catalytic activity for finally oriented overall water splitting in 1 M KOH requiring only a low initial voltage of 1.41 V delivering at 20 mA cm 2 for more than 50 h.
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subjectCatalysis ; Chemical Evolution ; Catalytic Activity ; Hydroxides ; Water Splitting ; Iron Compounds ; Nickel Compounds ; Reaction Kinetics ; Hydrogen Evolution ; Intermetallic Compounds;
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titleIr 4+ -Doped NiFe LDH to expedite hydrogen evolution kinetics as a Pt-like electrocatalyst for water splitting
descriptionNiFe-layered double hydroxide (NiFe LDH) is a state-of-the-art oxygen evolution reaction (OER) electrocatalyst, yet it suffers from rather poor catalytic activity for the hydrogen evolution reaction (HER) due to its extremely sluggish water dissociation kinetics, severely restricting its application in overall water splitting. Herein, we report a novel strategy to expedite the HER kinetics of NiFe LDH by an Ir 4+ -doping strategy to accelerate the water dissociation process (Volmer step), and thus this catalyst exhibits superior and robust catalytic activity for finally oriented overall water splitting in 1 M KOH requiring only a low initial voltage of 1.41 V delivering at 20 mA cm 2 for more than 50 h.
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titleIr 4+ -Doped NiFe LDH to expedite hydrogen evolution kinetics as a Pt-like electrocatalyst for water splitting
authorChen, Qian-Qian ; Hou, Chun-Chao ; Wang, Chuan-Jun ; Yang, Xiao ; Shi, Rui ; Chen, Yong
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abstractNiFe-layered double hydroxide (NiFe LDH) is a state-of-the-art oxygen evolution reaction (OER) electrocatalyst, yet it suffers from rather poor catalytic activity for the hydrogen evolution reaction (HER) due to its extremely sluggish water dissociation kinetics, severely restricting its application in overall water splitting. Herein, we report a novel strategy to expedite the HER kinetics of NiFe LDH by an Ir 4+ -doping strategy to accelerate the water dissociation process (Volmer step), and thus this catalyst exhibits superior and robust catalytic activity for finally oriented overall water splitting in 1 M KOH requiring only a low initial voltage of 1.41 V delivering at 20 mA cm 2 for more than 50 h.
doi10.1039/c8cc02872a
pages6400-6403
date2018-06-14