Trifunctional C@MnO Catalyst for Enhanced Stable Simultaneously Catalytic Removal of Formaldehyde and Ozone
Wang, HC; Huang, ZW; Jiang, Z; Jiang, Z; Zhang, Y; Zhang, ZX; Shangguan, WF
2018
发表期刊ACS CATALYSIS
ISSN2155-5435
卷号8期号:4页码:3164-3180
文章类型期刊论文
摘要The key challenge for controlling low concentration volatile organic compounds (VOCs) is to develop technology capable of operating under mild conditions in a cost-effective manner. Meanwhile, ozone (O-3) is another dangerous air pollutant and byproducts of many emerging air quality control technologies, such as plasma and electrostatic precipitators. To address these multiple challenges, we report here a design strategy capable of achieving the following trifunctions (i.e., efficiently VOCs adsorption enrichment, ozone destruction, and stable VOCs degradation) from the synergistic effect of adsorption center encapsulation and catalytic active sites optimization using 2D manganese(II) monoxide nanosheets decorated carbon spheres with hierarchical core shell structure. Carbonous residues in the as-synthesized MnOx matrices played a key role for in situ generating homogeneous dispersed unsaturated MnO during the annealing of the as-synthesized C@MnOx in the flow of argon under a proper calcination temperature (550 degrees C). The formation of the intimacy interface between MnO and carbon not only facilitates the adsorption and subsequent catalytic reaction but also results in a gatekeeper effect on the protection of the carbon sphere against the etching of O-3. Such a composite architecture achieved the highest stable removal efficiency (100% for CO2 ppm of formaldehyde and 180 ppm of O-3 simultaneously) and 100% CO2 selectivity under a GHSV of 60000 mL h(-1) g(-1) These findings thus open up a way to address current multiple challenges in air quality control using a single hierarchical core shell structure.
关键词Supported Manganese Oxides Room-temperature Benzene Oxidation Activated Carbon Water-vapor By-products Pore-size Decomposition Adsorption Spectroscopy
DOI10.1021/acscatal.8b00309
收录类别SCI
语种英语
WOS记录号WOS:000430154100062
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/29197
专题中科院上海应用物理研究所2011-2018年
作者单位1.Wang, HC
2.Huang, ZW
3.Jiang, Z
4.Jiang, Z
5.Zhang, Y
6.Zhang, ZX
7.Shangguan, WF
推荐引用方式
GB/T 7714
Wang, HC,Huang, ZW,Jiang, Z,et al. Trifunctional C@MnO Catalyst for Enhanced Stable Simultaneously Catalytic Removal of Formaldehyde and Ozone[J]. ACS CATALYSIS,2018,8(4):3164-3180.
APA Wang, HC.,Huang, ZW.,Jiang, Z.,Jiang, Z.,Zhang, Y.,...&Shangguan, WF.(2018).Trifunctional C@MnO Catalyst for Enhanced Stable Simultaneously Catalytic Removal of Formaldehyde and Ozone.ACS CATALYSIS,8(4),3164-3180.
MLA Wang, HC,et al."Trifunctional C@MnO Catalyst for Enhanced Stable Simultaneously Catalytic Removal of Formaldehyde and Ozone".ACS CATALYSIS 8.4(2018):3164-3180.
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