物理化学学报2026，Vol.42Issue(6)：60-71,12.DOI:10.1016/j.actphy.2025.100193
等离子体金纳米双锥强局域电场促进共价有机框架光催化析氢研究
Plasmonic Au nanobipyramid assembly covalent organic framework for boosting photocatalytic hydrogen evolution through strong local electric field
摘要
Abstract
Integrating plasmonic metal nanocrystal/semiconductor hybrids is a novel approach to contribute photocatalyst with high performance.However,a deep insight of activity acceleration remains elusive because of the complex physicochemical behavior of localized surface plasmon resonance(LSPR)effects.Herein,Au nanobipyramids(NBs)capable of strong local electric field(LEF)are precisely synthesized and encapsulated in TpBD-COF via an in situ growth strategy.As expected,the optimized AuNBs/TpBD-COF hybrid displays a remarkable improvement in photocatalytic H2 generation reaction,with apparent quantum efficiency(AQE)of 0.58％at 420 nm.Electromagnetic simulation and femtosecond transient absorption spectroscopy demonstrate the critical role of amplified local electric field in generating charge-separated excitons and thus yielding more hot carriers(energetic electron/hole pairs)for H2 evolution in TpBD-COF.These findings provide a deep insight to examine the LSPR effects for improving the COF-based photocatalytic performance.关键词
共价有机框架/局域表面等离子体共振/光催化产氢Key words
Covalent organic frameworks/Localized surface plasmon resonance/Photocatalytic H2 evolution分类
化学化工引用本文复制引用
邓玉金,陈怡爽,张礼杰,金辉乐,杨云,徐全龙,王舜..等离子体金纳米双锥强局域电场促进共价有机框架光催化析氢研究[J].物理化学学报,2026,42(6):60-71,12.基金项目
国家自然科学基金资助(22478306,52171145) （22478306,52171145）
