文献类型：期刊文献

英文题名：Photocatalytic non-oxidative dehydrogenation of ethane to ethene with near unit selectivity

作者：Sui, Xiaoyu[1,2];Zhao, Jiwu[1,2];Zhang, Pu[1,2];Wang, Ying[1,2];Zheng, Hangbin[1,2];Zeng, Haihua[1,2];Wang, Pengzhao[3];Jia, Yanyan[4];Wen, Na[5];Ding, Zhengxin[1,2];Zhang, Zizhong[1,2];Dai, Sheng[4];Xu, Chao[1,2];Yuan, Rusheng[1,2];Dai, Wenxin[1,2];Fu, Xianzhi[1,2];Long, Jinlin[1,2]

机构：[1]Fuzhou Univ, Coll Chem, State Key Lab Chem NBC Hazards Protect, Fuzhou, Fujian, Peoples R China;[2]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou, Peoples R China;[3]Fuzhou Univ, Coll Chem Engn, Fuzhou, Peoples R China;[4]East China Univ Sci & Technol, Inst Fine Chem, Key Lab Adv Mat & Feringa Nobel Prize Scientist Jo, Sch Chem & Mol Engn, Shanghai, Peoples R China;[5]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou, Peoples R China

年份：2025

卷号：16

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001600669300004)】；

基金：This work is supported by National Natural Science Foundation of China (Grants Nos. 22302038, and 22202046) and the Minjiang Scholar Program of Fujian Province (Grants Nos. XRC-25069). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

语种：英文

摘要：The non-oxidative dehydrogenation of light alkanes to alkenes is thermodynamically limited by the trade-off between the cleavage of C-H and C-C bonds. Unlocking the thermodynamic bottleneck with photocatalysis is prone to eliminate undesirable side reactions such as deep dehydrogenation, cracking, isomerization, and polymerization. Herein, we show the photocatalytic non-oxidative dehydrogenation of ethane to ethene and hydrogen at ambient conditions, which is enabled by grafting of Ni single atoms to modulate the surface electronic structure of Pd nanoparticles photo-deposited on the surface of anatase TiO2 nanoparticles, modifying the ethane dehydrogenation pathway. A high rate of 8.2 +/- 0.2 mmol.g(-1).h(-1) for the stoichiometric conversion of ethane to ethene and hydrogen is achieved with a 100% ethene selectivity in a flow reactor under solar light irradiation. The apparent quantum efficiency reaches similar to 22.3% at 350 nm by using the optimal T-Ni0.6Pd0.24 photocatalyst. Solar-driven non-oxidative alkane dehydrogenation offers a route to light alkenes with high performance, and selectivity.