A Nonoxide Catalyst System Study: Alkali Metal-Promoted Pt/AC Catalyst for Formaldehyde Oxidation at Ambient Temperature
文献类型：期刊论文
| 作者 | Wang, Chunying; Li, Yaobin; Zheng, Lirong; Zhang, Changbin; Wang, Yin; Shan, Wenpo; Liu, Fudong; He, Hong
|
| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2021 |
| 卷号 | 11期号:1页码:456-465 |
| 关键词 | formaldehyde alkali metal activated carbon surface hydroxyl catalytic oxidation |
| ISSN号 | 2155-5435 |
| 英文摘要 | Metal oxides have been extensively used as supports in noble metal-based catalysts for formaldehyde (HCHO) oxidation, utilizing the benefit of the strong metal-support interaction (SMSI). Non-oxide supported noble metal catalysts are still rarely investigated in the field of HCHO oxidation. Herein, a series of Pt catalysts supported on a nonoxide, that is, activated carbon (AC), were studied in detail. Pt/AC catalysts with or without addition of the alkali metal Na were prepared and tested for HCHO oxidation. HCHO could be completely oxidized to form H2O and CO2 at 25 degrees C on the Na-Pt/AC-R (reduced Na-Pt/AC) catalyst, but in contrast, the Pt/AC-R catalyst only achieved 40% HCHO conversion under the same reaction conditions. The characterization results indicated that Na addition to the Na-Pt/AC-R catalyst could induce the formation of Pt-O-x-Na species, which improves the stability of Pt species, increases Pt dispersion, and enhances the activation of chemisorbed oxygen and water to form abundant surface-active hydroxyl groups. Meanwhile, HCHO-TPD confirmed that HCHO could be transformed into CO2 and H2O directly because of the presence of abundant OH groups on the Na-Pt/AC-R catalyst. In this study, the promotion effect of alkali metals on supported Pt catalysts for HCHO oxidation was further extended to a catalyst system with a nonoxide carrier. |
| WOS研究方向 | Chemistry, Physical |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46012]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 作者单位 | 1.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Key Lab Urban Pollutant Convers, Inst Urban Environm, Xiamen 361021, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Cent Florida, Dept Civil Environm & Construct Engn CECE, Catalysis Cluster Renewabl 4.Chinese Acad Sci, State Key Joint Lab Environm Simulat & Pollut Con, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 5.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Zhejiang Key Lab Urban Environm Proc & Pollut Con, Ningbo Urban Environm Observat & Res Stn, Ningbo 315800, People |
| 推荐引用方式 GB/T 7714 | Wang, Chunying,Li, Yaobin,Zheng, Lirong,et al. A Nonoxide Catalyst System Study: Alkali Metal-Promoted Pt/AC Catalyst for Formaldehyde Oxidation at Ambient Temperature[J]. ACS CATALYSIS,2021,11(1):456-465. |
| APA | Wang, Chunying.,Li, Yaobin.,Zheng, Lirong.,Zhang, Changbin.,Wang, Yin.,...&He, Hong.(2021).A Nonoxide Catalyst System Study: Alkali Metal-Promoted Pt/AC Catalyst for Formaldehyde Oxidation at Ambient Temperature.ACS CATALYSIS,11(1),456-465. |
| MLA | Wang, Chunying,et al."A Nonoxide Catalyst System Study: Alkali Metal-Promoted Pt/AC Catalyst for Formaldehyde Oxidation at Ambient Temperature".ACS CATALYSIS 11.1(2021):456-465. |
入库方式： OAI收割
来源：生态环境研究中心
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