Knowledge Management System Of Institute of process engineering,CAS
| Catalytic oxidation of CO over Pt/TiO2 with low Pt loading: The effect of H2O and SO2 | |
| Feng, Chenglin1,2; Liu, Xiaolong1; Zhu, Tingyu1,3; Hu, Yutao1; Tian, Mengkui2 | |
| 2021-07-25 | |
| Source Publication | APPLIED CATALYSIS A-GENERAL
 |
| ISSN | 0926-860X |
| Volume | 622Pages:8 |
| Abstract | 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. |
| Keyword | CO Catalytic oxidation Water promotion Reaction mechanism |
| DOI | 10.1016/j.apcata.2021.118218 |
| Language | 英语 |
| WOS Keyword | PREFERENTIAL OXIDATION ; SUPPORT ; MECHANISM ; STATE ; WATER ; ACTIVATION ; PLATINUM ; SINGLE ; ATOM |
| Funding Project | 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 Research Area | Chemistry ; Environmental Sciences & Ecology |
| WOS Subject | Chemistry, Physical ; Environmental Sciences |
| Funding Organization | National Key Research & Development (R&D) Program of China ; National Natural Science Foundation of China |
| WOS ID | WOS:000661298100005 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/49219 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Liu, Xiaolong; Zhu, Tingyu |
| Affiliation | 1.Chinese Acad Sci, Innovat Acad Green Manufacture, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Guizhou Univ, Sch Chem & Chem Engn, Guiyang 550025, Guizhou, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China |
| Recommended Citation 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. |
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