Please use this identifier to cite or link to this item: https://doi.org/10.1038/ncomms8181
Title: In situ oxidation of carbon-encapsulated cobalt nanocapsules creates highly active cobalt oxide catalysts for hydrocarbon combustion
Authors: Wang, H 
Chen, C
Zhang, Y
Peng, L
Ma, S
Yang, T
Guo, H
Zhang, Z
Su, D.S
Zhang, J
Keywords: carbon
cobalt
hydrocarbon
nanocapsule
carbon
catalysis
catalyst
cobalt
combustion
crystal
encapsulation
hydrocarbon
methane
nanoparticle
oxidation
palladium
photochemistry
smog
Article
carbon balance
catalyst
combustion
greenhouse effect
low temperature
melting point
nanoencapsulation
nanofabrication
photochemical smog
reaction analysis
thermostability
transmission electron microscopy
X ray powder diffraction
Issue Date: 2015
Publisher: Nature Publishing Group
Citation: Wang, H, Chen, C, Zhang, Y, Peng, L, Ma, S, Yang, T, Guo, H, Zhang, Z, Su, D.S, Zhang, J (2015). In situ oxidation of carbon-encapsulated cobalt nanocapsules creates highly active cobalt oxide catalysts for hydrocarbon combustion. Nature Communications 6 : 7181. ScholarBank@NUS Repository. https://doi.org/10.1038/ncomms8181
Rights: Attribution 4.0 International
Abstract: Combustion catalysts have been extensively explored to reduce the emission of hydrocarbons that are capable of triggering photochemical smog and greenhouse effect. Palladium as the most active material is widely applied in exhaust catalytic converter and combustion units, but its high capital cost stimulates the tremendous research on non-noble metal candidates. Here we fabricate highly defective cobalt oxide nanocrystals via a controllable oxidation of carbon-encapsulated cobalt nanoparticles. Strain gradients induced in the nanoconfined carbon shell result in the formation of a large number of active sites featuring a considerable catalytic activity for the combustion of a variety of hydrocarbons (methane, propane and substituted benzenes). For methane combustion, the catalyst displays a unique activity being comparable or even superior to the palladium ones. © 2015 Macmillan Publishers Limited. All rights reserved.
Source Title: Nature Communications
URI: https://scholarbank.nus.edu.sg/handle/10635/180462
ISSN: 2041-1723
DOI: 10.1038/ncomms8181
Rights: Attribution 4.0 International
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