Design structure for CePr mixed oxide catalysts in soot combustion
Design structure for CePr mixed oxide catalysts in soot combustion
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CePr混合氧化物烟灰燃烧催化剂的设计结构
DOI:
10.1039/c6ra28722k
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发表时间:
2017-04
期刊:
影响因子:
3.9
通讯作者:
Lu Hanfeng
中科院分区:
文献类型:
--
作者:
Fan Lijia;Xi Kang;Zhou Ying;Zhu Qiulian;Chen Yinfei;Lu Hanfeng
Four CePr mixed oxides with different structures were designed and synthesized using a solid-phase grinding method: a uniform solid solution of Ce and Pr (CePr-NN), Pr6O11-coated CeO2 (CePr-NO), CeO2-coated Pr6O11 (CePr-ON), and particle packing of CeO2 and Pr6O11 (CePr-OO) were obtained, and characterized by XRD, H2-TPR, TEM and TG. The results show that CePr-NN exhibits the best low temperature catalytic activity among the CePr catalysts. CeO2 is the major active phase on the surface of the CePr catalysts, and the use of Pr6O11 as the framework maintains the thermal stability of the CePr composite oxide. Moreover, both the oxygen storage capacity and mobility of the active oxygen of the catalyst were improved with the incorporation of Pr into CeO2, resulting in a higher combustion rate. The “molten state” which appeared during the preparation when nitrate was used as the precursor, plays a significant role in the migration of Ce and Pr, and is the premise of forming different structures of solid solution or coating structure.
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影响因子:
5.3
作者:
Keizo Nakagawa;T. Ohshima;Y. Tezuka;Megumi Katayama;M. Katoh;S. Sugiyama
通讯作者:
Keizo Nakagawa;T. Ohshima;Y. Tezuka;Megumi Katayama;M. Katoh;S. Sugiyama
DOI:
10.1007/bf01904437
发表时间:
1989-03
期刊:
Journal of thermal analysis
影响因子:
--
作者:
M. Karppinen;P. Kyläkoski;L. Niinistö;C. Rodellas
通讯作者:
M. Karppinen;P. Kyläkoski;L. Niinistö;C. Rodellas
影响因子:
3.7
作者:
Jian Liu;Zhen Zhao;Chunming Xu;A. Duan;Lei Wang;Suojiang Zhang
通讯作者:
Jian Liu;Zhen Zhao;Chunming Xu;A. Duan;Lei Wang;Suojiang Zhang
DOI:
10.1007/bf01913386
发表时间:
1988
期刊:
Journal of thermal analysis
影响因子:
--
作者:
A. Małecki;A. Malecka;R. Gajerski;B. Prochowska-Klisch;A. Podgórecka
通讯作者:
A. Małecki;A. Malecka;R. Gajerski;B. Prochowska-Klisch;A. Podgórecka
影响因子:
15.1
作者:
Miceli, P.;Bensaid, S.;Fino, D.
通讯作者:
Fino, D.