Hydrogen-rich surface of MoC catalysts for efficient CO_(2) hydrogenation induced by a coupled hydrogen donator  

作　　者：Dong Xu Si-Yuan Xia Qi-Yuan Li Jie-Sheng Chen Xin-Hao Li 

机构地区：[1]School of Chemistry and Chemical Engineering,Frontiers Science Center for Transformative Molecules,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《Nano Research》2024年第8期7762-7767,共6页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.22071146 and 21931005);the Shanghai Science and Technology Committee(No.23XD1421800);the Shanghai Shuguang Program(No.21SG12);the Shanghai Municipal Science and Technology Major Project.

摘　　要：Direct CO_(2) hydrogenation offers an important strategy for promoting the global carbon balance,but high thermodynamic and kinetic stability of CO_(2) has restricted its applicability to only a handful of industrial sectors.Here,we introduce a proof-of-concept application of the electron-rich Pt surface to promote hydrogen donation for electron-rich MoC particles acting as hydrogen acceptors,thereby constructing hydrogen-rich surface of MoC active centers.Moreover,the formed hydrogen-rich and electronrich surface could greatly decrease reaction activation energy to boost the efficient CO_(2) hydrogenation into formic acid over the MoC centers.The optimized MoC@NC/Pt-0.1(NC:nitrogen-doped carbon)catalyst exhibits a high turnover frequency(TOF)value of 1.2 h^(−1) at a lower temperature of 60℃and a TOF of 24.2 h^(−1) under standard reaction conditions widely used in the literature,exceeding 7 times of MoC@NC catalyst and surpassing the benchmark classical non-noble metal active center-based heterogeneous catalyst.

关 键 词：electron-rich Pt nanoparticles hydrogen donation hydrogen-rich MoC nanoparticles CO_(2) hydrogenation formic acid 

分 类 号：O64[理学—物理化学]