专题:太阳燃料

人工光合成机理的时空分辨光谱研究进展

  • 王秀丽 ,
  • 范峰滔 ,
  • 李灿
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  • 中国科学院大连化学物理研究所, 催化基础国家重点实验室, 洁净能源国家实验室(筹), 大连 116023
王秀丽,研究员,研究方向为太阳能光(电)催化动力学,电子信箱:xiuliwang@dicp.ac.cn;范峰滔(共同第一作者),研究员,研究方向为太阳能光(电)催化成像光谱,电子信箱:ftfan@dicp.ac.cn

收稿日期: 2020-09-15

  修回日期: 2020-10-25

  网络出版日期: 2021-01-14

基金资助

国家自然科学基金项目(21633015,21872143)

Spatial and temporal characterization on artificial photosynthesis mechanism

  • WANG Xiuli ,
  • FAN Fengtao ,
  • LI Can
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  • Dalian Institute of Chemical Physics, Chinese Academy of Sciences, State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian 116023, China

Received date: 2020-09-15

  Revised date: 2020-10-25

  Online published: 2021-01-14

摘要

综述了时空分辨光谱技术在人工光合成机理研究中的主要结果和最新进展,揭示了人工光合成中光生电子和空穴的分离、复合和反应等过程,利用成像光谱直接观测光生电荷的空间分布及其作用规律。时空分辨光谱的表征结果很好地解释了催化剂晶相、助催化剂的担载、相结结构的构筑、晶面调控等策略在光电催化过程中的作用机制。

本文引用格式

王秀丽 , 范峰滔 , 李灿 . 人工光合成机理的时空分辨光谱研究进展[J]. 科技导报, 2020 , 38(23) : 128 -137 . DOI: 10.3981/j.issn.1000-7857.2020.23.013

Abstract

Artificial photosynthesis, which converts solar energy to chemical energy, is an important strategy for solar energy utilization. Efficient separation of photoinduced electrons and holes is a key issue in artificial photosynthesis. To investigate the photoinduced electrons and holes using techniques of high temporal and spatial resolutions is crucial to the photo(electro) catalytic mechanism study. This review summarizes the main results and latest development in photo(electro)catalytic mechanism research with time-resolved spectroscopy and imaging spectroscopy. It is shown that charge separation, recombination and reaction process are well characterized by time-resolved spectroscopy while the spatial distribution of photogenerated charges and their roles in artificial photosynthesis are revealed by imaging spectroscopy.

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