2024-03-29T11:27:13Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/799722022-11-17T02:08:08Zhdl_2115_20059hdl_2115_151Defect-induced efficient dry reforming of methane over two-dimensional Ni/h-boron nitride nanosheet catalystsCao, YangMaitarad, PhornphimonGao, MinTaketsugu, TetsuyaLi, HongruiYan, TingtingShi, LiyiZhang, Dengsongopen access© 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 InternationalDry reforming of methaneCatalystsBoron nitrideDensity functional calculations431Efficient 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.Elsevier2018-12-15engjournal articleAMhttp://hdl.handle.net/2115/79972https://doi.org/10.1016/j.apcatb.2018.07.0010926-3373Applied Catalysis B-environmental2385160https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/79972/1/Manuscript.pdfapplication/pdf1.46 MB2018-12-15