Effect of Hydroxyl Groups on Metal Anchoring and Formaldehyde Oxidation Performance of Pt/Al2O3
文献类型：期刊论文
| 作者 | Zhang, Zhilin ; He, Guangzhi; Li, Yaobin; Zhang, Changbin; Ma, Jinzhu; He, Hong
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2022-08-02 |
| 卷号 | 56期号:15页码:10916-10924 |
| 关键词 | SINGLE-ATOM CATALYST WATER-GAS SHIFT CO OXIDATION LOW-TEMPERATURE AMBIENT-TEMPERATURE FTIR SPECTROSCOPY PT/TIO2 CATALYST MECHANISM CLUSTERS ALUMINA |
| ISSN号 | 0013-936X |
| 英文摘要 | Pt/Al2O3 catalysts showing excellent activity and stability have been used in various reactions, including HCHO oxidation. Herein, we prepared Pt-Na/Al2O3 catalysts with a Pt content of 0.05 wt % to reveal the key factors determining the anchoring of Pt as well as the catalytic activity and mechanism of HCHO oxidation. Pt-Na/nano-Al2O3 (denoted as Pt-Na/nAl(2)O(3)) catalysts with 0.05 wt % Pt content could completely oxidize HCHO to CO2 at room temperature, which is the lowest Pt content used in HCHO catalytic oxidation to our knowledge. After Na addition, terminal hydroxyl groups (denoted as HO-mu(ter)) on nano-Al2O3 were transformed to doubly bridging hydroxyl groups between Na and Al (denoted as HO-mu(bri(Na-Al))), which atomically dispersed Pt species. Pt anchoring further promoted the regeneration of HO-mu(bri(Na-Al)) by activating O-2 and H2O, oxidizing HCHO to CO2 directly by the fast reaction step ([HCOO-] + [OH]a -> CO2 + H2O). Our study revealed that the HO-mu(bri(Na-Al)) synergistically generated by HO-mu(ter )and Na species provided anchoring sites for Pt species. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47401]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Cont, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 4.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Pollutant Convers, Xiamen 361021, Peoples R China 5.Chinese Acad Sci, Zhejiang Key Lab Urban Environm Proc & Pollut Cont, Ningbo Urban Environm Obs |
| 推荐引用方式 GB/T 7714 | Zhang, Zhilin,He, Guangzhi,Li, Yaobin,et al. Effect of Hydroxyl Groups on Metal Anchoring and Formaldehyde Oxidation Performance of Pt/Al2O3[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2022,56(15):10916-10924. |
| APA | Zhang, Zhilin,He, Guangzhi,Li, Yaobin,Zhang, Changbin,Ma, Jinzhu,&He, Hong.(2022).Effect of Hydroxyl Groups on Metal Anchoring and Formaldehyde Oxidation Performance of Pt/Al2O3.ENVIRONMENTAL SCIENCE & TECHNOLOGY,56(15),10916-10924. |
| MLA | Zhang, Zhilin,et al."Effect of Hydroxyl Groups on Metal Anchoring and Formaldehyde Oxidation Performance of Pt/Al2O3".ENVIRONMENTAL SCIENCE & TECHNOLOGY 56.15(2022):10916-10924. |
入库方式： OAI收割
来源：生态环境研究中心
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