Densely populated single-atom catalysts for boosting hydrogen generation from formic acid  

作　　者：Xiaogeng Zhao Junmin Wang Dongnuan Zhang Yunhui Hao Xingmian Zhang Junna Feng Hong Su Cheng Feng Chun Wang 

机构地区：[1]Department of Chemistry,College of Science,Hebei Agricultural University,Baoding 071001,China [2]Baoding University of Technology,Baoding,China [3]College of Science and Technology,Hebei Agricultural University,Baoding,China

出　　处：《Carbon Energy》2025年第1期64-75,共12页碳能源(英文)

基　　金：National Natural Science Foundation of China,Grant/Award Numbers:21603054,31671930;Innovation and entrepreneurship training program for college students of Hebei Agricultural University,Grant/Award Numbers:2019085,s202010086046;Scientific Research Development Fund project of Hebei Agricultural University,Grant/Award Number:JY2020028;the Natural Science Foundation of Hebei Province,Grant/Award Numbers:B2016204131,B2016204136;Young Topnotch Talents Foundation of Hebei Provincial Universities,Grant/Award Number:BJ2016027.

摘　　要：The single-atom M-N-C(M typically being Co or Fe)is a prominent material with exceptional reactivity in areas of catalysis for sustainable energy.However,the formation of metal nanoparticles in M-N-C materials is coupled with hightemperature calcination conditions,limiting the density of M-Nx active sites and thus restricting the catalytic performance of such catalysts.Herein,we describe an effective decoupling strategy to construct high-density M-Nx active sites by generating polyfurfuryl alcohol in the MOF precursor,effectively preventing the formation of metal nanoparticles even with up to 6.377%cobalt loading.This catalyst showed a high H_(2) production rate of 778mLgcat^(−1) h^(−1) when used in the dehydrogenation reaction of formic acid.In addition to the high density of the active site,a curved carbon surface in the structure is also thought to be the reason for the high performance of the catalyst.

关 键 词：COBALT DEHYDROGENATION formic acid polyfurfuryl alcohol single-atom catalyst 

分 类 号：O643.36[理学—物理化学]