文献类型：期刊文献

英文题名：Self-grown photocatalytic metal-organic frameworks on electrocatalytic NiFe layered double hydroxides as bifunctional photoelectrocatalyst for efficient overall water splitting

作者：Qin, Huiluan[1];Xu, Penglei[1];Lu, Song[1];Wang, Yeqing[1];Ying, Jiadi[1];Liu, Tiancun[1];Guo, Min[1];Huang, Wenna[3];Shen, Qi[1];Yu, Zhixin[1,2]

机构：[1]Shaoxing Univ, Inst New Energy, Sch Chem & Chem Engn, Shaoxing 312000, Peoples R China;[2]Univ Stavanger, Dept Energy & Petr Engn, N-4036 Stavanger, Norway;[3]Shaoxing Univ, Coll Med, Shaoxing 312000, Zhejiang, Peoples R China

年份：2025

卷号：633

外文期刊名：JOURNAL OF POWER SOURCES

收录：SCI-EXPANDED(收录号：WOS:001424089900001)、、EI(收录号：20250617807565)、Scopus(收录号：2-s2.0-85216641936)、WOS

基金：The generous financial is supported by the National Natural Science Foundation of China (No. 22006100) .

语种：英文

外文关键词：LDH-MOF heterojunction; Hydrogen evolution reaction; Oxygen evolution reaction; Overall water splitting; Photoelectrocatalysis

外文摘要：Photoelectrochemical (PEC) overall water splitting is an appealing carbon-neutral strategy for green hydrogen production. Herein, a compact self-grown NiFe layered double hydroxide (LDH)-metal-organic frameworks (MOF) Z-Scheme bifunctional photoelectrocatalyst is successfully constructed by the in situ partial transformation of electrocatalytic NiFe LDH to photocatalytic NiFe MOF for PEC overall water splitting. The hierarchical layered structure of NiFe LDH-MOF shows excellent bifunctional activity for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The incorporation of NiFe MOF significantly improves the PEC HER performance of NiFe LDH, resulting in a low overpotential of 268 mV at the current density of 100 mA cm(-2) for NiFe LDH-MOF. A synergistic effect promotes the OER performance of NiFe LDH-MOF, resulting in a higher photocurrent density and lower overpotential compared to LDH and MOF individually. The compact NiFe LDHMOF, serving as both a photocathode and a photoanode, is successfully utilized in photoelectrochemical overall alkali water splitting. It performs effectively under experimental illumination (lambda > 400 nm), natural sunlight, and can even be powered by a commercial dry battery. The excellent performance under solar illumination enables the self-grown LDH-MOF heterojunction material highly promising for practical applications in PEC water splitting.