Single atom-decorated transition metal oxide nanomaterials for efficient oxygen evolution reaction

Li, Cong-Hui; Yuan, Cheng-Zong; Wang, Ling-Xian; Wu, Fuling; Xin, Lei; Zhang, Xiaomeng; Xu, An-Wu

doi:10.1039/d4qm00285g

Mater. Chem. Front.

2024

DOI: 10.1039/d4qm00285g

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Single atom-decorated transition metal oxide nanomaterials for efficient oxygen evolution reaction

Cong-Hui Li,

Cheng-Zong Yuan,

Ling-Xian Wang

et al.

Abstract: As one promising technology for highly pure hydrogen production under mild conditions, electrochemical water splitting has been garnering substantial interest, while its efficiency and rate are primarily restricted by the...

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Mn‐Doped CoFeP Nanosheets as Effective Electrocatalysts for Superior Overall Water Splitting

Li,

Dong,

et al. 2024

Energy Tech

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For green hydrogen, the exploitation of advanced electrocatalysts is crucial, and transition metal phosphides have great potential in water splitting due to their abundant reserves and optimized electronic structure. Herein, a synergistic approach involving Mn doping and phosphorization is applied to CoFe‐layered double hydroxide nanoflowers to produce a series of bifunctional catalysts Mn‐doped CoFeP (Mn‐CoFeP). Electrochemical evaluations demonstrate that the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performance of Mn(10%)‐CoFeP both have notable improvement in 1 M KOH, with the overpotentials of only 160 and 239 mV to achieve current densities of 10 and 100 mA cm−2, respectively. Comparative electrocatalytic analysis indicates that moderate Mn doping mainly contributes to improve the OER performance, while the phosphorization significantly enhances the HER activity, resulting in effective bifunctional catalysis. For overall water decomposition, a total hydrolysis electrolysis cell equipped with the Mn(10%)‐CoFeP bifunctional catalyst requires only 1.64 V to reach a current density of 10 mA cm−2. Furthermore, it performs stable operation for 10 h at a current density of 10 mA cm−2 with a current maintenance rate of 83.6%. This work offers new insights into preparing effective bifunctional electrocatalysts, advancing clean energy development.

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Mn‐Doped CoFeP Nanosheets as Effective Electrocatalysts for Superior Overall Water Splitting

Li,

Dong,

et al. 2024

Energy Tech

View full text Add to dashboard Cite

show abstract

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Single atom-decorated transition metal oxide nanomaterials for efficient oxygen evolution reaction

Abstract: As one promising technology for highly pure hydrogen production under mild conditions, electrochemical water splitting has been garnering substantial interest, while its efficiency and rate are primarily restricted by the...

Cited by 1 publication

References 166 publications

Mn‐Doped CoFeP Nanosheets as Effective Electrocatalysts for Superior Overall Water Splitting

Mn‐Doped CoFeP Nanosheets as Effective Electrocatalysts for Superior Overall Water Splitting

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