CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Tailoring the Oxidation Activity of Pt Nanoclusters via Encapsulation
Zhang, F; Jiao, F; Pan, XL; Gao, K; Xiao, JP; Zhang, S; Bao, XH
2015
Source PublicationACS CATALYSIS
Volume5Issue:2Pages:1381—1385
Subtype期刊文献
AbstractTo tailor the catalytic activities of metal catalysts at will to achieve efficient conversion in chemical processes remains a challenge, particularly for noble metals, such as Pt. We demonstrate herein that encapsulation within the carbon nanotube (CNT) channels with a diameter of 1.0-1.5 nm not only allows restriction of the size of Pt nanoclusters around 1.0 nm but also enables modulating of the Pt species at the active reduced states through host guest interaction. The encapsulated Pt is protected from oxygen under reaction conditions in toluene oxidation up to 200 degrees C, as unveiled by in situ X-ray absorption spectroscopy and density functional theory calculations. As a result, the encapsulated Pt clusters deliver a remarkably higher activity and stability than the clusters located on the open surfaces of the CNT exterior walls and carbon black support, although the latter are much more accessible to reactants. This characteristic of the CNT channels can be explored to tune the properties of other metal catalysts for oxidation reactions.
KeywordOrganic-compounds Vocs Carbon Nanotubes Catalytic-oxidation Metal-clusters Platinum Clusters Oxygen Reduction Particle-size O-xylene Toluene Hydrogenation
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24592
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Zhang, F,Jiao, F,Pan, XL,et al. Tailoring the Oxidation Activity of Pt Nanoclusters via Encapsulation[J]. ACS CATALYSIS,2015,5(2):1381—1385.
APA Zhang, F.,Jiao, F.,Pan, XL.,Gao, K.,Xiao, JP.,...&Bao, XH.(2015).Tailoring the Oxidation Activity of Pt Nanoclusters via Encapsulation.ACS CATALYSIS,5(2),1381—1385.
MLA Zhang, F,et al."Tailoring the Oxidation Activity of Pt Nanoclusters via Encapsulation".ACS CATALYSIS 5.2(2015):1381—1385.
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