文献类型：期刊文献

英文题名：Engineering VO-Ti ensemble to boost the activity of Ru towards water dissociation for catalytic hydrogen generation

作者：Shen, Ruofan[1] Liu, Yanyan[1,2,3] Wen, Hao[1] Liu, Tao[4] Peng, Zhikun[1] Wu, Xianli[1] Ge, Xianghong[1] Mehdi, Sehrish[1,5] Cao, Huaqiang[6] Liang, Erjun[1] Jiang, Jianchun[3] Li, Baojun[1]

第一作者：Shen, Ruofan

通信作者：Liu, YY[1];Liang, ER[1];Li, BJ[1];Jiang, JC[2]

机构：[1]Zhengzhou Univ, Coll Chem, Sch Phys & Microelect, Zhengzhou 450001, Peoples R China;[2]Henan Agr Univ, Coll Sci, Zhengzhou 450002, Henan, Peoples R China;[3]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Natl Engn Lab Biomass Chem Utilizat, Nanjing 210042, Peoples R China;[4]Natl Ctr Nanosci & Technol, CAS Key Lab Biomed Effects Nanomat & Nanosafety, Beijing 100190, Peoples R China;[5]Women Univ, Dept Chem, Kutchery Campus,LMQ Rd, Multan 66000, Pakistan;[6]Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

年份：2022

卷号：306

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：;EI(收录号：20220411508868);Scopus(收录号：2-s2.0-85123222831);WOS:【SCI-EXPANDED(收录号:WOS:000783879600002)】；

基金：Acknowledgement This work was supported by the National Natural Science Foundation of China (No. 11874328, No. 22075254) . All the authors thank the great Communist Party of China.

语种：英文

外文关键词：Electron promoter; Ensemble; Oxygen vacancy; Ruthenium; Water dissociation

摘要：High activity catalysts used for eliminating the energy barrier in water breaking-up are of great significance for accelerating those reactions retarded by water molecules dissociation. In this work, an oxygen vacancy (VO)-Ti ensemble engineering on Ru catalyst was established to boost the catalytic activity toward water dissociation. The VO in VO-Ti ensemble plays as electron promoter to transfers electrons to surface Ru atoms. The rich electron state of Ru boosts the catalytic activity toward water dissociation. As an experimental verification, the turnover frequency of 1.5-RTVO-4 in ammonia borane hydrolysis reaches up to 1370 min-1 (9710 min-1 depend on the dispersion of Ru), exceeding the benchmark value set up by Ru-based catalysts. This research provides a novel electronic tuning strategy for VO as imaginary atom via electron promoter effect to enhance the intrinsic catalytic activity of metal catalysts toward inert molecule dissociation in the next generation energy chemistry field.