Controlled porous hollow Co3O4 polyhedral nanocages derived from metal-organic frameworks (MOFs) for toluene catalytic oxidation

doi:10.1016/j.mcat.2018.10.020

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Controlled porous hollow Co3O4 polyhedral nanocages derived from metal-organic frameworks (MOFs) for toluene catalytic oxidation
	Zhao, Jiuhu 1,2; Tang, Zhicheng 1; Dong, Fang 1; Zhang, Jiyi 2
刊名	MOLECULAR CATALYSIS
	2019-02
卷号	463 页码:77-86
关键词	ZIF-67 Hollow Co3O4 dodecahedron Particles size Toluene catalytic oxidation Size effect
ISSN号	2468-8231
DOI	10.1016/j.mcat.2018.10.020
英文摘要	A series of hollow Co3O4 polyhedron with different sizes were successfully synthesized via pyrolysis of ZIF-67, which was applied to the catalytic oxidation of toluene. Notably, the size effect of hollow Co3O4 polyhedron on the catalytic oxidation of toluene was systematically investigated. It was worth mentioning that the samples still retained the nanosize and shapes of the MOF precursor according to SEM and TEM results. Especially, the Co3O4-400 catalyst with 400 nm size exhibited superior catalytic performance, and the complete conversion temperature of toluene (T-100) was 280 degrees C. Through a series of characterizations, it was concluded that the particles size of hollow Co3O4 polyhedron could evidently alter their surface atomic ratio of Co3+/Co2+. Simultaneously, we discovered that the catalytic performance of hollow Co3O4 polyhedron was obviously improved with the increase of surface atomic ratio of Co3+/Co2+. In addition, lots of surface adsorbed oxygen would speed up the catalytic oxidation of toluene. Furthermore, no significant decrease in catalytic performance was observed over 30 h at 250 degrees C on the Co3O4-400 sample, which indicated that it exhibited excellent stability for toluene oxidation. Therefore, it showed potential as a metal-oxide catalyst in elimination of toluene.
资助项目	Science and Technology Program of Lanzhou City[2017-4-111]
WOS研究方向	Chemistry
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000456224100011
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32135]
专题	石油化工学院
通讯作者	Tang, Zhicheng; Zhang, Jiyi
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Natl Engn Res Ctr Fine Petrochem Intermediates, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Petr & Chem, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Jiuhu,Tang, Zhicheng,Dong, Fang,et al. Controlled porous hollow Co3O4 polyhedral nanocages derived from metal-organic frameworks (MOFs) for toluene catalytic oxidation[J]. MOLECULAR CATALYSIS,2019,463:77-86.
APA	Zhao, Jiuhu,Tang, Zhicheng,Dong, Fang,&Zhang, Jiyi.(2019).Controlled porous hollow Co3O4 polyhedral nanocages derived from metal-organic frameworks (MOFs) for toluene catalytic oxidation.MOLECULAR CATALYSIS,463,77-86.
MLA	Zhao, Jiuhu,et al."Controlled porous hollow Co3O4 polyhedral nanocages derived from metal-organic frameworks (MOFs) for toluene catalytic oxidation".MOLECULAR CATALYSIS 463(2019):77-86.