Promotional effect of HZSM-5 on the catalytic oxidation of toluene over MnOx/HZSM-5 catalysts

doi:10.1039/c5cy02011e

QIBEBT-IR > 多相催化转化研究组

	Promotional effect of HZSM-5 on the catalytic oxidation of toluene over MnOx/HZSM-5 catalysts
	Huang, He 1,2; Zhang, Chuanhui1 ; Wang, Lei 1; Li, Genqin 1; Song, Liang1 ; Li, Guangci1 ; Tang, Sifu1 ; Li, Xuebing1
	2016
发表期刊	CATALYSIS SCIENCE & TECHNOLOGY
卷号	6 期号:12 页码:4260-4270
摘要	A series of HZSM-5 supported MnOx catalysts with different manganese contents were prepared by an incipient impregnation method and tested for the catalytic oxidation of toluene. The catalytic results indicate that 10% MnOx/HZSM-5 exhibits the optimum catalytic activity, excellent catalytic durability in dry conditions and high regeneration capability in humid conditions. The dispersion of MnOx species on the HZSM-5 surface significantly reduces coke formation and simultaneously efficiently accelerates the oxidative decomposition of coke deposition during toluene catalytic oxidation. An obvious cooperative action is present on the MnOx/HZSM-5 catalysts for the catalytic oxidation of toluene, which is originally attributed to the excellent toluene adsorption capacity and trapping ability of HZSM-5 as well as the superior redox ability of the MnOx species. The correlation between characterizations and the catalytic results reveals that the mesoporous structure and low-temperature reducibility of MnOx are key factors responsible for the catalytic performance of toluene oxidation. Moreover, the Bronsted acid sites of the HZSM-5 zeolite, as active promoters, play a significant role in the catalytic oxidation of toluene through a comparative analysis with SiO2 and Al2O3 supported MnOx catalysts. The existence of a cooperative action between the redox ability of the MnOx species and the acidic properties of the HZSM-5 zeolite in the MnOx/HZSM-5 catalysts results in a high catalytic activity for the reaction.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1039/c5cy02011e
关键词[WOS]	MANGANESE OXIDE CATALYSTS ; BENZENE OXIDATION ; ACTIVATED CARBON ; DEEP OXIDATION ; CO OXIDATION ; REMOVAL ; VOCS ; COMBUSTION ; CERIA ; TRICHLOROETHYLENE
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
项目资助者	National Natural Science Foundation of China(21306214 ; 21171173 ; 21276263)
WOS类目	Chemistry, Physical
WOS记录号	WOS:000378276300023
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/8333
专题	多相催化转化研究组
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, 189 Songling Rd, Qingdao, Shandong, Peoples R China 2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Huang, He,Zhang, Chuanhui,Wang, Lei,et al. Promotional effect of HZSM-5 on the catalytic oxidation of toluene over MnOx/HZSM-5 catalysts[J]. CATALYSIS SCIENCE & TECHNOLOGY,2016,6(12):4260-4270.
APA	Huang, He.,Zhang, Chuanhui.,Wang, Lei.,Li, Genqin.,Song, Liang.,...&Li, Xuebing.(2016).Promotional effect of HZSM-5 on the catalytic oxidation of toluene over MnOx/HZSM-5 catalysts.CATALYSIS SCIENCE & TECHNOLOGY,6(12),4260-4270.
MLA	Huang, He,et al."Promotional effect of HZSM-5 on the catalytic oxidation of toluene over MnOx/HZSM-5 catalysts".CATALYSIS SCIENCE & TECHNOLOGY 6.12(2016):4260-4270.