Catalytic oxidation of CO over Pt/TiO2 with low Pt loading: The effect of H2O and SO2
文献类型：期刊论文
| 作者 | Feng, Chenglin1,3; Liu, Xiaolong1; Zhu, Tingyu1,2; Hu, Yutao1; Tian, Mengkui3 |
| 刊名 | APPLIED CATALYSIS A-GENERAL
 |
| 出版日期 | 2021-07-25 |
| 卷号 | 622页码:8 |
| 关键词 | CO Catalytic oxidation Water promotion Reaction mechanism |
| ISSN号 | 0926-860X |
| DOI | 10.1016/j.apcata.2021.118218 |
| 英文摘要 | Anatase TiO2 loaded with 0.1wt.% Pt catalyst (0.1Pt/TiO2-A) was prepared via the impregnation method, and its CO catalytic oxidation activity was investigated. Noteworthy, introduction of H2O into the reaction atmosphere apparently facilitated the catalytic oxidation of CO. Besides, introduction of SO2 inhibited the catalytic oxidation of CO. In presence of H2O and SO2, 0.1Pt/TiO2-A showed outstanding catalytic stability, and X-ray photoelectron spectroscopy (XPS) and thermogravimetric (TG) characterizations suggested that the amount of sulfate species deposited on the 0.1Pt/TiO2-A treated at 230 degrees C did not increase with time extension, which might be an important reason for the high sulfur resistance of 0.1Pt/TiO2-A. XPS results also demonstrated that the dissociation of H2O led to considerably increase of hydroxyl groups over the catalyst surface. (H2O)-O-18 isotope-labeling experiments unambiguously showed that C16O18O was the main product accounting for 88.9%, revealing that the other oxygen atom in the product CO2 was mostly from H2O. Consequently, based on previous researches and our experimental results, the mechanism of H2O promoting CO oxidation on 0.1Pt/TiO2-A catalyst was proposed. |
| WOS关键词 | PREFERENTIAL OXIDATION ; SUPPORT ; MECHANISM ; STATE ; WATER ; ACTIVATION ; PLATINUM ; SINGLE ; ATOM |
| 资助项目 | National Key Research & Development (R&D) Program of China[2018YFC0213400] ; National Key Research & Development (R&D) Program of China[2017YFC0210500] ; National Natural Science Foundation of China[51938014] |
| WOS研究方向 | Chemistry ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000661298100005 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research & Development (R&D) Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/49218]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Liu, Xiaolong; Zhu, Tingyu |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Green Manufacture, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 3.Guizhou Univ, Sch Chem & Chem Engn, Guiyang 550025, Guizhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Chenglin,Liu, Xiaolong,Zhu, Tingyu,et al. Catalytic oxidation of CO over Pt/TiO2 with low Pt loading: The effect of H2O and SO2[J]. APPLIED CATALYSIS A-GENERAL,2021,622:8. |
| APA | Feng, Chenglin,Liu, Xiaolong,Zhu, Tingyu,Hu, Yutao,&Tian, Mengkui.(2021).Catalytic oxidation of CO over Pt/TiO2 with low Pt loading: The effect of H2O and SO2.APPLIED CATALYSIS A-GENERAL,622,8. |
| MLA | Feng, Chenglin,et al."Catalytic oxidation of CO over Pt/TiO2 with low Pt loading: The effect of H2O and SO2".APPLIED CATALYSIS A-GENERAL 622(2021):8. |
入库方式： OAI收割
来源：过程工程研究所
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