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作者

Feng, Chenchen Bi, Yushui Zhan, Faqi Bi, Yingpu

作者单位

⁴  State Key Laboratory for Oxo Synthesis & Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou 730000, Gansu, China  ¹  State Key Laboratory for Oxo Synthesis & Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou 730000, Gansu, China School of Materials Science and Engineering, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050, Gansu, China  ²  School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong 271016, China  ³  School of Materials Science and Engineering, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, 287 Langongping Road, Lanzhou 730050, Gansu, China 

刊名

Journal of Materials Chemistry. A, Materials for Energy and Sustainability

年份

2024

卷号

Vol.12 No.27

页码

16361-16366

ISSN

2050-7488

摘要

Herein, we demonstrated a facile and feasible strategy for forming strong interfacial bonding between FeOOH catalysts and hierarchical FeO photoanodes through an oxygen vacancy self-healing process, which exhibited a remarkable improvement in PEC water oxidation activity. More specifically, the photocurrent density could be achieved up to 3.0 mA cm at 1.23 V vs. the reversible hydrogen electrode under simulated sunlight , which is much higher than that of direct decoration of FeOOH catalysts a...更多

Herein, we demonstrated a facile and feasible strategy for forming strong interfacial bonding between FeOOH catalysts and hierarchical FeO photoanodes through an oxygen vacancy self-healing process, which exhibited a remarkable improvement in PEC water oxidation activity. More specifically, the photocurrent density could be achieved up to 3.0 mA cm at 1.23 V vs. the reversible hydrogen electrode under simulated sunlight , which is much higher than that of direct decoration of FeOOH catalysts and pristine FeO photoanodes . Detailed experiments and theoretical calculations reveal that the preformed oxygen vacancies on FeO photoanode surfaces could efficiently facilitate the interfacial bonding with FeOOH catalysts, which significantly promote the charge separation and hole transport to participate in the water oxidation reaction. More importantly, these findings might provide a new insight into interface modulation of the photoanode/catalyst for highly efficient PEC water splitting.收起

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