洁净煤技术

2021, v.27;No.132(02) 132-138

[打印本页] [关闭]
本期目录(Current Issue) | 过刊浏览(Past Issue) | 高级检索(Advanced Search)

热助光催化CO_2还原研究进展与展望
Progress and prospect of thermal assisted photocatalytic CO_2 reduction

赵江婷;熊卓;赵永椿;张军营;
ZHAO Jiangting;XIONG Zhuo;ZHAO Yongchun;ZHANG Junying;State Key Laboratory of Coal Combustion,School of Energy and Power Engineering,Huazhong University of Science and Technology;

摘要(Abstract):

光热催化是一种极具前途的CO_2还原策略,可利用太阳光谱的广泛吸收来激发热化学和光化学过程的结合,从而协同推动催化反应的进行,使CO_2在较为温和的条件下实现高效转换。作为光热催化的一种,在光催化中引入热能,可提高太阳光利用率,促进载流子的激发和分离,加快反应分子扩散,提升反升性能。对当前光热催化CO_2还原的概念和原理进行分类,并对热助光催化还原CO_2反应的研究现状进行总结。基于反应产物的差异,介绍热助光催化反应的催化剂选择、反应条件和反应机理,同时介绍了该类反应试验过程中关键的局部测温技术,最后对热助光催化CO_2还原技术的发展进行了展望,未来的研究重点应是提升CO_2转化率和产物选择性,同时利用先进的原位表征技术和理论计算对反应机理进行探究。
Photothermal catalysis is a promising strategy for CO_2 reduction,which can use the broad absorption of solar spectrum to stimulate the combination of thermochemical and photochemical processes,so as to promote the catalytic reaction and realize the efficient conversion of CO_2 under mild conditions. As a kind of photothermal catalysis,the introduction of heat energy into photocatalysis can improve the utilization of sunlight,promote the excitation and separation of carriers,and accelerate the diffusion of reaction molecules,and improve the reverse lift performance. In this paper,the concept and principle of photocatalytic CO_2 reduction were classified,and the research status of thermally assisted photocatalytic reduction of CO_2 was summarized. Based on the difference of reaction products,the selection of catalyst,reaction conditions and reaction mechanism of thermally assisted photocatalytic reaction were introduced. In addition,the key technology of local temperature measurement in photothermal reaction experiment was also introduced. Finally,the development of photocatalytic CO_2 reduction technology was prospected. The focus of future research should improve CO_2 conversion and product selectivity,and explore the reaction mechanism by using advanced in-situ characterization technology and theoretical calculation.

关键词(KeyWords): 热助光催化;CO_2还原;协同
photothermal catalysis;CO_2 reduction;synergy

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51706082)

作者(Author): 赵江婷;熊卓;赵永椿;张军营;
ZHAO Jiangting;XIONG Zhuo;ZHAO Yongchun;ZHANG Junying;State Key Laboratory of Coal Combustion,School of Energy and Power Engineering,Huazhong University of Science and Technology;

Email:

DOI: 10.13226/j.issn.1006-6772.CCUS20100904

参考文献(References):

文章评论(Comment):

序号(No.) 时间(Time) 反馈人(User) 邮箱(Email) 标题(Title) 内容(Content)
反馈人(User) 邮箱地址(Email)
反馈标题(Title)
反馈内容(Content)
扩展功能
本文信息
服务与反馈
本文关键词相关文章
本文作者相关文章
中国知网
分享