Journal
RSC ADVANCES
Volume 7, Issue 77, Pages 48819-48824Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ra06591d
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Funding
- National Natural Science Foundation of China [11575129, 11275142]
- National Key Research and Development Program of China [2017YFF0106506]
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We have investigated the potential catalytic activity of a single Ni atom incorporated with pyridinic nitrogen graphene (Ni-3N-G) in CO oxidation with first-principles calculations. It is found that the reaction pathway would start with the Langmuir-Hinshelwood mechanism, and followed the progress of CO oxidation with a remaining atomic O. The barriers for the formation and dissociation of a peroxo-type intermediate OOCO are 0.61 and 0.51 eV, respectively. The barrier that the remaining atomic O oxidizes CO is only 0.26 eV, which makes Ni-3N-G regenerate. The results imply that the low-cost Ni-3N-G is a prospective catalyst without noble metal for CO oxidation at room temperature.
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