Enhanced catalytic stability and structural evolution of Rh-BN interface in dry reforming of methane under intensified CO2 partial pressure - Details

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Abstract：

Strong　metal-support　interaction　(SMSI)　is　a　crucial　factor　that　determines　the　structure　and　performance　of　a　supported　metal　catalyst.　Herein,　the　SMSI　effect　of　Rh　nanoparticle　catalyst　supported　on　h-BN　is　investigated　in　the　dry　reforming　of　methane　(DRM)　reactions　with　different　CO2/CH4　ratios.　The　catalyst　characterization　results　demonstrate　that　the　SMSI　effect　allows　the　Rh　nanoparticles　to　be　encapsulated　by　BOx　overlayers　under　DRM　reaction　conditions　(CO2/CH4　=　1/1),　which　prevents　the　interaction　between　the　reactants　and　metal　centers　for　causing　rapid　deactivation.　By　increasing　the　partial　pressure　of　CO2　(CO2/CH4　=　3/1),　Rh/BN　exhibits　significantly　enhanced　activity　and　long-term　stability　in　the　DRM　reaction.　CO2　or　H2O　in　the　reactive　atmosphere　can　effectively　etch　the　BOx　overlayers　for　steadily　exposing　the　active　Rh-BN　interface　sites,　as　evidenced　by　the　characterization.　This　observation　extends　the　understanding　of　the　SMSI　effect　at　the　interfaces　between　metal　and　non-oxide　support.　©　2023　Elsevier　Inc.

Keyword：

Boron nitride Carbon dioxide Dry reforming of methane Rhodium Strong metal-support interaction

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[ 1 ] [Xu Y.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 2 ] [An Z.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 3 ] [Yu X.]State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese-Academy of Sciences, Taiyuan, 030001, China
[ 4 ] [Yu X.]National Energy Center for Coal to Liquids, Synfuels China Co., Ltd., Beijing, 101400, China
[ 5 ] [Yu X.]SynCat@Beijing, Synfuels China Technology Co. Ltd., Beijing, 101407, China
[ 6 ] [Yao J.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 7 ] [Lv Q.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 8 ] [Yang H.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 9 ] [Lv Z.]National Energy Center for Coal to Liquids, Synfuels China Co., Ltd., Beijing, 101400, China
[ 10 ] [Guo H.]National Energy Center for Coal to Liquids, Synfuels China Co., Ltd., Beijing, 101400, China
[ 11 ] [Jiang Q.]Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
[ 12 ] [Liu W.]Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
[ 13 ] [Wu L.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 14 ] [Tan L.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 15 ] [Dai Y.]Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
[ 16 ] [Tang Y.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China

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Enhanced catalytic stability and structural evolution of Rh-BN interface in dry reforming of methane under intensified CO2 partial pressure
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Source ：

Journal of Catalysis

ISSN： 0021-9517

Year： 2023

Volume： 427

6 . 5

JCR@2023

6 . 5 0 0

JCR@2023

ESI HC Threshold：39

JCR Journal Grade：1

CAS Journal Grade：2

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 12

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 4

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