One-pot pyrolytic synthesis of mesoporous MCo2O4(4.5) (M = Mn, Ni, Fe, Cu) spinels and its high efficient catalytic properties for CO oxidation at low temperature

被引：54
|
作者：
Li, Gengnan [1 ]
Li, Liang [1 ]
Shi, Jingjing [1 ]
Yuan, Yinyin [1 ]
Li, Yongsheng [1 ]
Zhao, Wenru [1 ]
Shi, Jianlin [1 ,2 ]
机构：
[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2014年 / 390卷
关键词：
Mesoporous materials; Spinel structure; CO oxidation; RAY PHOTOELECTRON-SPECTROSCOPY; OXIDE CATALYSTS; CO3O4; COBALT; COPPER; OXYGEN; ABSORPTION; MANGANESE;
D O I：
10.1016/j.molcata.2014.03.012
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Meso-structured polycrystalline MCo2O4(4.5) (M = Mn, Ni, Fe, Cu) spinels have been successfully fabricated through one-pot pyrolytic method using homogeneous complex oxalates as precursors. In such a protocol, the pyrolysis products, nano-sized spinel crystallites, connected together to form mesoporous structure. Compared with that through nano-casting method, this strategy is much facial and efficient, and resulting material MnCo2O4.5 calcined at 250 degrees C possesses much higher specific area, excellent catalytic activity and stability for CO oxidation at ambient temperature. The full CO conversion can be achieved at as low as 30 degrees C. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：97 / 104
页数：8
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