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Fabrication of mesoporous Co3O4 oxides by acid treatment and their catalytic performances for toluene oxidation
Li, Genqin1,2; Zhang, Chuanhui1,3; Wang, Zhong1; Huang, He1; Peng, Hui1; Li, Xuebing1
2018-01-25
发表期刊APPLIED CATALYSIS A-GENERAL
ISSN0926-860X
卷号550页码:67-76
摘要Considering the harmful effects of volatile organic compounds (VOCs) on the atmosphere and public health, the search for proper catalytic materials for the effective catalytic elimination of VOCs remains one of the most pressing issues in the environmental field. In this study, a series of mesoporous Co3O4-n (n = 0.00, 0.0001, 0.01, 0.05, 0.10, 1.00, representing the concentration of HNO3 aqueous solution) catalysts were fabricated by the acid treatment of Co3O4 that was previously prepared via a hydroxycarbonate precipitation method (Co3O4-P). The catalytic performances of the prepared catalysts were evaluated for the model reaction of toluene oxidation. An obvious enhancement of catalytic activity in the reaction was achieved over the acid-treated Co3O4 catalysts using lower HNO3 concentrations, with Co3O4-0.01 exhibiting the optimum catalytic activity (T-90 = 225 degrees C, 15 degrees C lower than that of Co3O4-P), excellent catalytic durability under dry conditions and a high regeneration capability under humid conditions. Benefitting from the dilute acid treatment, the Co3O4-n (n = 0.01, 0.05, 0.10) catalysts presented higher specific surface areas, more weak acidic sites and higher abundances of surface Co2+ and O-ads species, which were regarded as the key factors responsible for their enhanced catalytic activities.
文章类型Article
关键词Toluene Oxidation Mesoporous Co3o4 Acid Treatment Surface Acidity
WOS标题词Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
DOI10.1016/j.apcata.2017.11.003
关键词[WOS]VOLATILE ORGANIC-COMPOUNDS ; NANOCRYSTALLINE COBALT OXIDE ; HIGHLY-ACTIVE CATALYST ; LOW-TEMPERATURE ; VOCS ELIMINATION ; MANGANESE OXIDES ; CARBON-MONOXIDE ; CHROMIUM-OXIDE ; CO OXIDATION ; POROUS CO3O4
收录类别SCI
语种英语
WOS研究方向Chemistry ; Environmental Sciences & Ecology
项目资助者National Natural Science Foundation of China(21607163 ; Natural Science Foundation of Shandong Province(ZR201613Q02 ; Applied Basic Research Program of Qingdao(16-5-1-35-jch) ; 21676287) ; ZR2017ZC0633)
WOS类目Chemistry, Physical ; Environmental Sciences
WOS记录号WOS:000423648900008
出版者ELSEVIER SCIENCE BV
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/10576
专题多相催化转化团队
通讯作者Zhang, Chuanhui; Li, Xuebing
作者单位1.Chinese Acad Sci, Key Lab Biofuels, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Qingdao Univ, Inst Mat Energy & Environm, Sch Mat Sci & Engn, Qingdao 266071, Peoples R China
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Li, Genqin,Zhang, Chuanhui,Wang, Zhong,et al. Fabrication of mesoporous Co3O4 oxides by acid treatment and their catalytic performances for toluene oxidation[J]. APPLIED CATALYSIS A-GENERAL,2018,550:67-76.
APA Li, Genqin,Zhang, Chuanhui,Wang, Zhong,Huang, He,Peng, Hui,&Li, Xuebing.(2018).Fabrication of mesoporous Co3O4 oxides by acid treatment and their catalytic performances for toluene oxidation.APPLIED CATALYSIS A-GENERAL,550,67-76.
MLA Li, Genqin,et al."Fabrication of mesoporous Co3O4 oxides by acid treatment and their catalytic performances for toluene oxidation".APPLIED CATALYSIS A-GENERAL 550(2018):67-76.
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