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Fabrication of mesoporous Co3O4 oxides by acid treatment and theircatalytic performances for toluene oxidation,
Genqin Li,Chuanhui Zhang*, Zhong Wang, He Huang, Hui Peng, Xuebing Li*.; 张传辉、李学兵
2018-01-25
发表期刊Applied Catalysis A: General
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 (T90 =225 °C, 15 °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 Oads species, which were regarded as the key factors responsible for their enhanced catalytic activities.
WOS标题词Toluene oxidation、Mesoporous Co3O4、Acid treatment、Surface acidity、
DOIhttps://doi.org/10.1016/j.apcata.2017.11.003
WOS研究方向Catalysis
WOS类目Catalysis
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/9818
专题多相催化转化团队
通讯作者张传辉、李学兵
作者单位中国科学院青岛生物能源与过程研究所(2)中国科学院大学(3)青岛大学
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GB/T 7714
Genqin Li,Chuanhui Zhang*, Zhong Wang, He Huang, Hui Peng, Xuebing Li*.,张传辉、李学兵. Fabrication of mesoporous Co3O4 oxides by acid treatment and theircatalytic performances for toluene oxidation,[J]. Applied Catalysis A: General,2018,550:67-76.
APA Genqin Li,Chuanhui Zhang*, Zhong Wang, He Huang, Hui Peng, Xuebing Li*.,&张传辉、李学兵.(2018).Fabrication of mesoporous Co3O4 oxides by acid treatment and theircatalytic performances for toluene oxidation,.Applied Catalysis A: General,550,67-76.
MLA Genqin Li,Chuanhui Zhang*, Zhong Wang, He Huang, Hui Peng, Xuebing Li*.,et al."Fabrication of mesoporous Co3O4 oxides by acid treatment and theircatalytic performances for toluene oxidation,".Applied Catalysis A: General 550(2018):67-76.
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