典型文献
Stable NiO-CeO2 nanoparticles with improved carbon resistance for methane dry reforming
文献摘要：
High surface area mixed oxide 8.7％ NiO-CeO2 nanoparticles (122 m2/g;6-7 nm) were prepared using a reversed microemulsion method,and were tested for dry methane reforming (DRM).The catalytic ac-tivity of these nanoparticles remains stable under the severe conditions of DRM (700 ℃),and they show better carbon resistance than conventional NiO-CeO2 catalysts prepared without control of the size.The activity and selectivity of nanoparticles and reference catalyst are similar,but nanoparticles reduce the accumulation of carbon by 63％ during the DRM tests,which is a key feature for this reaction.XPS and H2-TPR suggest that the improved carbon resistance of the nanoparticles is due to the better interaction and cooperation between NiO and CeO2 mixed phases.In nanoparticles,the participation of cerium cations in the redox processes taking place during DRM stabilizes cationic species of nickel.On the contrary,the catalyst prepared without control of the size suffers segregation of Ni during DRM reaction,and segregated Ni explains the higher catalytic formation of carbon.
文献关键词：
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作者姓名：
Andrea Cárdenas-Arenas;Esther Bailón-García;Dolores Lozano-Castelló;Patrick Da Costa;Agustín Bueno-López
作者机构：
Department of Inorganic Chemistry,University of Alicante,Carretera de San Vicente s/n,E03080,Alicante,Spain;Sorbonne Université,Institut Jean Le Rond d'Alembert,CNRS UMR 7190,2 place de la gare de ceinture,78210,Saint Cyr L'Ecole,France
文献出处：
引用格式：
[1]Andrea Cárdenas-Arenas;Esther Bailón-García;Dolores Lozano-Castelló;Patrick Da Costa;Agustín Bueno-López-.Stable NiO-CeO2 nanoparticles with improved carbon resistance for methane dry reforming)[J].稀土学报（英文版）,2022(01):57-62
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B类：
Stable,NiO,CeO2,nanoparticles,improved,carbon,resistance,methane,dry,reforming,High,surface,area,mixed,oxide,were,prepared,using,reversed,microemulsion,method,tested,DRM,catalytic,these,remains,stable,under,severe,conditions,they,show,better,conventional,catalysts,without,control,size,activity,selectivity,reference,similar,but,reduce,accumulation,by,during,tests,which,key,feature,this,reaction,XPS,H2,TPR,suggest,that,due,interaction,cooperation,between,phases,In,participation,cerium,cations,redox,processes,taking,place,stabilizes,cationic,species,nickel,On,contrary,suffers,segregation,segregated,explains,higher,formation
AB值：
0.555062
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