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Current dilemma in photocatalytic CO_(2) reduction:real solar fuel production or false positive outcomings?

查看全文 作　　者：Kai [1,2]Zhang;Qi [1]Gao;Cuiping [1]Xu;Dawei [1]Zhao;Qibin [1]Zhu;Zhonghui [1]Zhu;Jin [1]Wang;Cong [1]Liu;Haitao [1]Yu;Chen [1]Sun;Xianglei [1,2]Liu;Yimin [1,2]Xuan 高影响力作者 机构地区：[1]College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,People’s Republic of China;[2]Key Laboratory of Thermal Management and Energy Utilization of Aviation Vehicles,Ministry of Industry and Information Technology,Nanjing 210016,Jiangsu,China高影响力机构 出　　处：《Carbon Neutrality》索引2022年第1卷第1期,共16页高影响力期刊 基　　金：the Basic Science Center Project for Ordered Energy Conversion of the National Natural Science Foundation of China(No.51888103). 摘　　要：Solar driven carbon dioxide(CO_(2))recycling into hydrocarbon fuels using semiconductor photocatalysts offers an ideal energy conversion pathway to solve both the energy crisis and environmental degradation problems.However,the ubiquitous presence of carbonaceous contaminants in photocatalytic CO_(2) reduction system and the inferior yields of hydrocarbon fuels raise serious concerns about the reliability of the reported experimental results.Here in this perspective,we focus on the accurate assessment of the CO_(2) reduction products,systemically discuss the possible sources of errors in the product quantification,elaborate the common mistakes spread in the analysis of reaction products obtained in 13CO_(2) labelling experiments,and further propose reliable protocols for reporting the results of these isotopic tracing experiments.Moreover,the challenges and cautions in the precise measurement of O_(2) evolution rate are also depicted,and the amplification of the concentration of O_(2) in photoreactors well above the limit of detection is still demonstrated to be the most effective solution to this troublesome issue.We hope the viewpoints raised in this paper will help to assessment the reliability of the reported data in future,and also benefit the beginners that intend to dive in the photocatalytic CO_(2) reduction area. 关 键 词：Artificial photosynthesis Solar fuels Photocatalytic CO_(2)reduction PITFALLS Isotopic tracing False positive results
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