Photothermal catalytic C-C coupling to ethylene from CO_(2) with high efficiency by synergistic cooperation of oxygen vacancy and half-metallic WTe_(2)

作     者：Xiaoyue Zhang Yong Yang Yingjie Hu Lijun Xiong Tianyu Wang Panjie Li Jinyou Shen 

作者机构：Key Laboratory of Environmental Remediation and Ecological HealthMinistry of Industry and Information TechnologySchool of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094JiangsuChina School of Chemistry and Chemical EngineeringNanjing University of Science and TechnologyNanjing 210094JiangsuChina Nanjing Key Laboratory of Advanced Functional MaterialsNanjing Xiaozhuang UniversityNanjing 210094JiangsuChina Jiangsu Environmental Engineering Technology Co.LtdNanjing 210019JiangsuChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2024年第93卷第6期

页      面：547-556,I0014页

核心收录：

学科分类：0820[工学-石油与天然气工程] 081702[工学-化学工艺] 081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 0817[工学-化学工程与技术] 08[工学] 070304[理学-物理化学(含∶化学物理)] 0703[理学-化学] 

基　　金：the National Natural Science Foundation of China(51303083) the National Natural Science Foundation of China for Excellent Young Scholars(51922050) the Natural Science Foundation of Jiangsu Province(BK20191293) the Fundamental Research Funds for the Central Universities(30920021123) 

主　　题：Photothermal catalysis Half-metal WTe_(2) C–C coupling Carbon neutrality 

摘      要：Photothermal catalytic CO_(2) conversion provides an effective solution targeting carbon neutrality by synergistic utilization of photon and ***,the C-C coupling initiated by photothermal catalysis is still a big ***,a three-dimensional(3D)hierarchical W_(18)O_(49)/WTe_(2) hollow nanosphere is constructed through in-situ embodying of oxygen vacancy and tellurium on the scaffold of WO_(3).The light absorption towards near-infrared spectral region and CO_(2) adsorption are enhanced by the formation of half-metal WTe_(2) and the unique hierarchical hollow *** with the generation of oxygen vacancy with strengthened CO_(2) capture,the photothermal effect on the samples can be sufficiently exploited for activating the CO_(2) *** particular,the close contact between W_(18)O_(49)and WTe_(2) largely promotes the photoinduced charge separation and mass transfer,and thus the~*CHO intermediate formation and fixedness are *** a result,the C-C coupling can be evoked between tungsten and tellurium atoms on WTe_(2).The ethylene production by optimized W_(18)O_(49)/WTe_(2) reaches 147.6μmol g^(-1)with the selectivity of 80%.The in-situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS)and density functional theory(DFT)calculations are performed to unveil the presence and significance of aldehyde intermediate groups in C-C *** half-metallic WTe_(2) cocatalyst proposes a new approach for efficient CO_(2) conversion with solar energy,and may especially create a new platform for the generation of multi-carbon products.