Fabrication of Hierarchical Porous Metal Oxides by the HPMC- Assisted Gel Combustion Strategy: Incorporation of Nanoceria into Cookie-like Mn2O3 with Enhanced Oxidation Activity and Excellent Water Resistance
文献类型：期刊论文
| 作者 | Cao, Yijia2; Li, Fujun2; Zhang, Chi2; Wang, Haotian2; Zou, Zongpeng2; Tang, Shengwei2; Chen, Yunfa1; Tang, Wenxiang2 |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2023-01-23 |
| 页码 | 13 |
| ISSN号 | 0888-5885 |
| DOI | 10.1021/acs.iecr.2c03828 |
| 英文摘要 | Constructing nonprecious metal oxide catalysts with a hierarchical porous structure by a simple method for the deep catalytic oxidation of toxic volatile organic compounds at low temperatures is of great value and significance. In this work, a porous manganese trioxide catalyst (Mn2O3-H) was prepared by a hydroxypropyl methylcellulose-assisted combustion synthesis strategy for catalytic complete oxidation of gaseous toluene. Benefiting from the rich porous nanostructure, Mn2O3-H has much higher specific surface area and active site density, resulting in better low-temperature reducibility and oxygen activation ability than blank Mn2O3 formed by direct calcination. With this sol-gel combustion process, CeO2 nanoparticles could be successfully introduced to form cookie-like Ce-Mn composite oxide with a hierarchical porous nanostructure, which builds the strong interaction of CeO2- Mn2O3 to weaken Mn-O with more active defects. Among Ce-doped catalysts, 5% CeMn-H shows the best catalytic activity in toluene oxidation with 90% conversion temperature at 242 degrees C under a weight hour space velocity of 60,000 mLmiddotg-1middoth-1, which is about 30 and 133 degrees C lower than that of Mn2O3-H and Mn2O3-B, respectively. This advantage is also shown in other typical hydrocarbons such as propylene and propane. Moreover, the as-prepared Ce-doped catalyst exhibits excellent stability and water resistance ability. This simple robust sol-gel combustion method will provide valuable enlightenment for designing porous catalysts with high performance for related catalytic reactions. |
| WOS关键词 | PD ALLOY NANOPARTICLES ; HIGH SURFACE-AREAS ; CATALYTIC-OXIDATION ; COMPOSITE OXIDES ; TOLUENE ; TEMPERATURE ; PERFORMANCE ; DECOMPOSITION ; BENZENE ; CO3O4 |
| 资助项目 | National Natural Science Foundation of China[22072096] ; Sichuan Science and Technology Program[2021YFG0226] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000922141700001 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; Sichuan Science and Technology Program |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/56741]  |
| 通讯作者 | Tang, Wenxiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Yijia,Li, Fujun,Zhang, Chi,et al. Fabrication of Hierarchical Porous Metal Oxides by the HPMC- Assisted Gel Combustion Strategy: Incorporation of Nanoceria into Cookie-like Mn2O3 with Enhanced Oxidation Activity and Excellent Water Resistance[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2023:13. |
| APA | Cao, Yijia.,Li, Fujun.,Zhang, Chi.,Wang, Haotian.,Zou, Zongpeng.,...&Tang, Wenxiang.(2023).Fabrication of Hierarchical Porous Metal Oxides by the HPMC- Assisted Gel Combustion Strategy: Incorporation of Nanoceria into Cookie-like Mn2O3 with Enhanced Oxidation Activity and Excellent Water Resistance.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,13. |
| MLA | Cao, Yijia,et al."Fabrication of Hierarchical Porous Metal Oxides by the HPMC- Assisted Gel Combustion Strategy: Incorporation of Nanoceria into Cookie-like Mn2O3 with Enhanced Oxidation Activity and Excellent Water Resistance".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2023):13. |
入库方式： OAI收割
来源：过程工程研究所
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