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Defect-induced efficient dry reforming of methane over two-dimensional Ni/h-boron nitride nanosheet catalysts

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Title: Defect-induced efficient dry reforming of methane over two-dimensional Ni/h-boron nitride nanosheet catalysts
Authors: Cao, Yang Browse this author
Maitarad, Phornphimon Browse this author
Gao, Min Browse this author
Taketsugu, Tetsuya Browse this author
Li, Hongrui Browse this author
Yan, Tingting Browse this author
Shi, Liyi Browse this author
Zhang, Dengsong Browse this author
Keywords: Dry reforming of methane
Boron nitride
Density functional calculations
Issue Date: 15-Dec-2018
Publisher: Elsevier
Journal Title: Applied Catalysis B-environmental
Volume: 238
Start Page: 51
End Page: 60
Publisher DOI: 10.1016/j.apcatb.2018.07.001
Abstract: Efficient enhancement of catalytic stability and coke-resistance is a crucial aspect for dry reforming of methane. Here, we report Ni nanoparticles embedded on vacancy defects of hexagonal boron nitride nanosheets (Ni/h-BNNS) can optimize catalytic performance by taming two-dimensional (2D) interfacial electronic effects. Experimental results and density functional theory calculations indicate that surface engineering on defects of Ni/h-BNNS catalyst can strongly influence metal-support interaction via electron donor/acceptor mechanisms and favor the adsorption and catalytic activation of CH4 and CO2. The Ni/h-BNNS catalyst exhibits superior catalytic performance during a 120 h durability test. Furthermore, in situ techniques further reveal possible recovery mechanism of the active Ni sites, identifying the enhanced catalytic activities of the Ni/h-BNNS catalyst. This work highlights promotional mechanism of defect-modified interface and should be equally applicable for design of thermochemically stable catalysts.
Rights: © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 高 敏

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