Deep sulfur doping induces the rapid electrochemical self-reconstruction of Ni–Fe hydroxide to drive water oxidation

Li, Xiaoge; Zhao, Jun; Zhou, Jinhua; Wang, Qinchao; Han, Jie

doi:10.1039/d3gc03210h

Green Chem.

2023

DOI: 10.1039/d3gc03210h

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Deep sulfur doping induces the rapid electrochemical self-reconstruction of Ni–Fe hydroxide to drive water oxidation

Xiaoge Li,

Jun Zhao,

Jinhua Zhou

et al.

Abstract: Low crystallinity and deep sulfur doping effectively facilitate the rapid and favorable electrochemical reconstruction of Ni–Fe hydroxides toward an enhanced OER catalysis.

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2024

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Cited by 2 publications

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Built-in electric field and core-shell structure of the reconstructed sulfide heterojunction accelerated water splitting

Yu,

Li,

Yin

et al. 2024

Chinese Chemical Letters

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Built-in electric field and core-shell structure of the reconstructed sulfide heterojunction accelerated water splitting

Yu,

Li,

Yin

et al. 2024

Chinese Chemical Letters

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Oxygen Evolution Enhancement of Oxalate-Based Nickel–Iron MOF through Bipyridine Coordinated Strategy

Liu,

Hao,

Tang

et al. 2024

Inorg. Chem.

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The catalytic performance of oxalate-based Ni−Fe metal−organic frameworks (MOFs) in the oxygen evolution reaction (OER) was investigated via a coordination strategy. The bidentate chelating ligand 2,2′-bpy (2,2′-bipyridine), was utilized to improve the catalytic kinetics under ambient conditions. The results revealed that a MOF-to-MOF transformation including the formation of [M(2,2′-bpy) n ] 2/3+ (M = Ni/Fe, n = 1−3) could boost alkaline OER, giving an impressive ultralow overpotential of 220 mV at a current density of 10 mA/cm 2 in a 1 M KOH solution, surpassing the performance of control group activity of oxalate-based Ni−Fe MOF. However, excessive addition of the ligand had a negative effect, leading to decreased activity. Further investigation revealed the double role of 2,2′-bpy: Both promote and suppress catalytic reactions. The catalytic mechanism was then discussed, highlighting the potential of secondary ligands to effectively fine-tune the catalytic behavior of these materials.

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Deep sulfur doping induces the rapid electrochemical self-reconstruction of Ni–Fe hydroxide to drive water oxidation

Abstract: Low crystallinity and deep sulfur doping effectively facilitate the rapid and favorable electrochemical reconstruction of Ni–Fe hydroxides toward an enhanced OER catalysis.

Cited by 2 publications

References 52 publications

Built-in electric field and core-shell structure of the reconstructed sulfide heterojunction accelerated water splitting

Built-in electric field and core-shell structure of the reconstructed sulfide heterojunction accelerated water splitting

Oxygen Evolution Enhancement of Oxalate-Based Nickel–Iron MOF through Bipyridine Coordinated Strategy

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