典型文献
Highly Efficient Photocatalytic CO2 Methanation over Ru-Doped TiO2 with Tunable Oxygen Vacancies
文献摘要：
Solar-driven CO2 methanation is an imperative and promising approach to relieve the global warming and environmental crisis,yet remains a great challenge due to the low reaction efficiency,unsatisfactory selectivity and poor stability.In this work,we demonstrate a facile and efficient strategy to prepare Ru-doped TiO2 photocatalyst with tunable oxygen vacancies using the ascorbic acid as a reducing agent for the CO2 methanation reaction.The optimal Ru-Ti02-OV-50 exhibits a remarkable CH4 production rate of 81.7 mmol g-1 h-1 with a 100％CH4 selectivity under a 1.5 W cm-2 light illumination,which is significantly higher than commercial Ru/TiO2 and other reported catalysts.We reveal that the superior photocatalytic CO2 methanation performance is mainly due to the synergistic effect of Ru doping and TiO2 with tunable oxygen vacancies.Impressively,the light rather than thermal effect is confirmed as the main influencing factor by experimental studies.In addition,in situ spectroscopic technology is performed to investigate the CO2 methanation reaction pathway.This work will open an avenue to design and prepare highly efficient photocatalyst with tunable oxygen vacancies for CO2 conversion and other related applications.
文献关键词：
中图分类号：
作者姓名：
Zheyue Li;Di Wu;Wanbing Gong;Jiayi Li;Shuaikang Sang;Hengjie Liu;Ran Long;Yujie Xiong
作者机构：
Hefei National Research Center for Physical Sciences at the Microscale,School of Chemistry and Materials Science,National Synchrotron Radiation Laboratory,School of Nuclear Science and Technology,University of Science and Technology of China,Hefei 230026,China;Institute of Energy, Hefei Comprehensive National Science Center,350 Shushanhu Rd.,Hefei 230031, China
文献出处：
引用格式：
[1]Zheyue Li;Di Wu;Wanbing Gong;Jiayi Li;Shuaikang Sang;Hengjie Liu;Ran Long;Yujie Xiong-.Highly Efficient Photocatalytic CO2 Methanation over Ru-Doped TiO2 with Tunable Oxygen Vacancies)[J].结构化学,2022(12):43-50
A类：
Methanation
B类：
Highly,Efficient,Photocatalytic,over,Ru,Doped,TiO2,Tunable,Oxygen,Vacancies,Solar,driven,methanation,imperative,promising,approach,relieve,global,warming,environmental,crisis,yet,remains,great,challenge,due,low,reaction,efficiency,unsatisfactory,selectivity,poor,stability,In,this,work,we,demonstrate,facile,efficient,strategy,prepare,doped,photocatalyst,tunable,oxygen,vacancies,using,ascorbic,acid,reducing,agent,optimal,Ti02,OV,exhibits,remarkable,CH4,production,under,light,illumination,which,significantly,higher,commercial,other,reported,catalysts,We,reveal,that,superior,photocatalytic,performance,mainly,synergistic,effect,doping,Impressively,rather,thermal,confirmed,influencing,by,experimental,studies,addition,situ,spectroscopic,technology,performed,investigate,pathway,This,will,open,avenue,design,highly,conversion,related,applications
AB值：
0.627558
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