Synergistic enhancement of the photoelectrochemical water splitting performance of BiFeO3 photocathodes via potassium doping and surface platinum modification

Sijie Wen; Guangping Yi; Yiping Zhao; Xiaofan Yang; Pengfei Lv; Zhao Jing; Qiang Wang; Pengyi Tang

doi:10.1039/D6CC02314B

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Synergistic enhancement of the photoelectrochemical water splitting performance of BiFeO₃ photocathodes via potassium doping and surface platinum modification

Sijie Wen,^abc Guangping Yi,^abc Yiping Zhao,^abc Xiaofan Yang,^be Pengfei Lv,^abc Zhao Jing,^be Qiang Wang^bd and Pengyi Tang

*^abc

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* Corresponding authors

^a National Key Laboratory of Materials for Integrated Circuits, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
E-mail: py.tang@mail.sim.ac.cn

^b 2020 X-Lab, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China

^c School of Graduate Study, University of Chinese Academy of Sciences, Beijing 100049, China

^d State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China

^e School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China

Abstract

BiFeO₃ (BFO) is a promising material for photoelectrochemical water splitting, yet its performance is limited by photogenerated charge recombination. In this work, we fabricate a K-BFO/Pt photocathode via synergistic K⁺ doping and Pt cocatalyst modification, achieving a nearly two-fold photocurrent gain over BFO.

This article is part of the themed collection: ChemComm Electrocatalysis

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DOI: https://doi.org/10.1039/D6CC02314B
Article type: Communication
Submitted: 15 Apr 2026
Accepted: 05 Jun 2026
First published: 08 Jun 2026

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Chem. Commun., 2026, Advance Article

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Synergistic enhancement of the photoelectrochemical water splitting performance of BiFeO₃ photocathodes via potassium doping and surface platinum modification

S. Wen, G. Yi, Y. Zhao, X. Yang, P. Lv, Z. Jing, Q. Wang and P. Tang, Chem. Commun., 2026, Advance Article , DOI: 10.1039/D6CC02314B

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Synergistic enhancement of the photoelectrochemical water splitting performance of BiFeO₃ photocathodes via potassium doping and surface platinum modification

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Synergistic enhancement of the photoelectrochemical water splitting performance of BiFeO₃ photocathodes via potassium doping and surface platinum modification

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