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Abstract：
Dry reforming of methane (DRM) is an attractive route to utilize CO2 as a chemical feedstock with which to convert CH4 into valuable syngas and simultaneously mitigate both greenhouse gases. Ni-based DRM catalysts are promising due to their high activity and low cost, but suffer from poor stability due to coke formation which has hindered their commercialization. Herein, we report that atomically dispersed Ni single atoms, stabilized by interaction with Ce-doped hydroxyapatite, are highly active and coke-resistant catalytic sites for DRM. Experimental and computational studies reveal that isolated Ni atoms are intrinsically coke-resistant due to their unique ability to only activate the first C-H bond in CH4, thus avoiding methane deep decomposition into carbon. This discovery offers new opportunities to develop large-scale DRM processes using earth abundant catalysts.
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NATURE COMMUNICATIONS
ISSN： 2041-1723
Year： 2019
Volume： 10
1 6 . 6 0 0
JCR@2022
ESI Discipline： Multidisciplinary;
ESI HC Threshold：255
JCR Journal Grade：1
Cited Count：
WoS CC Cited Count： 460
SCOPUS Cited Count： 469
ESI Highly Cited Papers on the List： 27 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 11
