光电催化二氧化碳能源化利用研究进展  

Research progress of energy utilization of CO2 by photoelectrocatalysis

作　　者：张甄 王宝冬 赵兴雷 李歌 王红妍 周佳丽 孙琦 ZHANG Zhen;WANG Baodong;ZHAO Xinglei;LI Ge;WANG Hongyan;ZHOU Jiali;SUN Qi(National Institute of Clear-Low-Carbon Energy, Beijing 102209, China;Dalian Institute of Chemical Physics,Chinese Academy of Sciences, Dalian 116023, Liaoning, China)

机构地区：[1]北京低碳清洁能源研究所,北京102209 [2]中国科学院大连化学物理研究所,辽宁大连116023

出　　处：《化工进展》2019年第9期3927-3935,共9页Chemical Industry and Engineering Progress

基　　金：国家高技术研究发展计划(2012AA06A115)

摘　　要：CO2能源化利用面临的主要问题是能耗问题和氢源问题。光电催化实现CO2的能源化利用的核心为利用光催化剂的催化活性,光激发条件下产生光电子,减少外界能量输入,同时利用电催化活性提高CO2还原产物的选择性和可控性。文章主要从光电催化的优势、反应机理、研究现状、催化剂、最新研究成果等方面综述了光电催化CO2能源化利用的研究进展。具体阐述了光电催化体系的组成、CO2的电子还原过程及目前存在的问题,重点探讨了光电体系的电极材料组成、电解液组分以及常见的光电催化剂类型对整个光电催化体系催化性能的影响。此外,指出了当前光电催化CO2能源化利用方面存在的不足:转化效率低、产物选择性差等。并对光电催化实现CO2能源化利用的研究重点,即高效光电催化剂的开发、催化过程动力学反应机理进行了展望。The energy utilization of CO2 by chemical conversion faces two problems of energy consumption and hydrogen source. Photoelectrocatalytic technology is a new and clean way to realize the energy utilization of CO2, which can reduce the external energy input and improve the selectivity and controllability of the CO2 reduction products by excitation electron of photocatalyst and electrocatalysis. In this paper, the research progress of photoelectrocatalytic carbon dioxide is reviewed from the advantages of photoelectrocatalytic process, reaction mechanism, catalysts and the latest research results. We mainly elaborate the composition of the photoelectrocatalytic system, the electronic reduction of CO2, and the existing problems. Besides, we mainly discuss on the influence of the compositions of the electrode material and the electrolyte, and the types of commonly used photocatalysts on the catalytic performance of the entire photoelectrocatalytic system. In addition, it points out that the current photoelectrocatalytic utilization of CO2 has problems of insufficient conversion efficiency, poor product selectivity, and etc. Future research should focus on the development of high-efficiency photoelectrocatalysts and the catalytic kinetics.

关 键 词：二氧化碳 能源化利用 光电催化 光电催化体系 反应机理 

分 类 号：TH3[机械工程—机械制造及自动化]