Unravelling the Anomalous Coking Resistance over Boron Nitride-Supported Ni Catalysts for Dry Reforming of Methane
作者机构:International Joint Laboratory of Catalytic ChemistryCollege of SciencesShanghai UniversityShanghai 200444 Institute for Chemical Reaction Design and Discovery(WPI-ICReDD)Hokkaido UniversitySapporo 001-0021 Institute for CatalysisHokkaido UniversitySapporo 001-0021
出 版 物:《CCS Chemistry》 (中国化学会会刊(英文))
年 卷 期:2023年第5卷第9期
页 面:2111-2124页
核心收录:
学科分类:081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术]
基 金:financial support from the National Natural Science Foundation of China(grant nos.22006098 and 22125604) Shanghai Sailing Program(grant no.20YF1413300) J.D.thanks Dr.Lei Xie at Fudan University for fruitful discussions.The computational part is also supported by the JSPS KAKENHI(grant no.JP20K05217) the supercomputer at RCCS(grant no.22-IMS-C002),Okazaki,Japan
主 题:heterogenous catalysis boron nitrides dry reforming of methane coking resistance methane conversion
摘 要:Metal oxides have been used as the supports for heterogeneous catalysis formany years,but they still suffer from coking in some high-temperature *** main reasons for coking are the uncontrollable dissociation of C-H and the overbalance between carbon deposition and ***,we find a boron nitride(BN)-immobilized Ni catalyst shows unprecedented coking resistance in dry reforming of methane via the incomplete decomposition of *** the Ni-based catalysts supported by traditional metal oxides,BN-supported Ni accelerates the first C-H dissociation while inhibiting the breaking of the final C-H bond;hence,the suppression of the complete decomposition of methane thoroughly addresses the coking *** work reveals the fundamental reason for the coking resistance over BN-supported Ni catalysts is selective activation of the C-H bond,which can provide an inspiring idea for other applications.