| Acid pretreatment of support promotes Pd/SiO2 activity for formaldehyde oxidation at room temperature | |
Liu, Xiaofeng; Wang, Chunying; Li, Yaobin; He, Hong
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| 2022-09-15 | |
| Source Publication | CATALYSIS SCIENCE & TECHNOLOGY
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| ISSN | 2044-4753 |
| Issue | 0Pages:1-8 |
| Abstract | Formaldehyde (HCHO) is a major pollutant in indoor air. The development of low-cost and high-efficiency technologies to remove HCHO at room temperature is thus of great importance. Here, we developed a simple method involving acid pretreatment of SiO2 to improve a Pd/SiO2(HNO3)-R catalyst for HCHO oxidation. Multiple characterization results illustrated that the hydroxyl groups on SiO2 produced by the acid pretreatment favored the anchoring of Pd particles and increased their dispersion. The increase in Pd dispersion induced more oxygen vacancies on the surface of the Pd/SiO2(HNO3)-R catalyst because of the increased number of hydrogen spillover sites; this further enhanced H2O activation to form surface-active hydroxyl groups, thus significantly increasing the intrinsic activity of the Pd/SiO2(HNO3)-R catalyst for HCHO oxidation. |
| Department | 大气环境与污染控制实验室 ; 大气环境与污染控制实验室 |
| Keyword | CATALYTIC-OXIDATION CO OXIDATION PD/TIO2 OXIDE GOLD HCHO AU PT/ZSM-5 PATHWAY H-2 |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/47382 |
| Collection | 大气环境与污染控制实验室 |
| Affiliation | 1.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Key Lab Urban Pollutant Convers, Xiamen 361021, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Zhejiang Key Lab Urban Environm Proc & Pollut Con, Ningbo Urban Environm Observat & Res Stn NUEORS, Ningbo 315800, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China 5.Chinese Acad Sci, Inst Urban Environm, Xiamen Key Lab Mat Gaseous Pollutant Control, Xiamen 361 |
| Recommended Citation GB/T 7714 | Liu, Xiaofeng,Wang, Chunying,Li, Yaobin,et al. Acid pretreatment of support promotes Pd/SiO2 activity for formaldehyde oxidation at room temperature[J]. CATALYSIS SCIENCE & TECHNOLOGY,2022(0):1-8. |
| APA | Liu, Xiaofeng,Wang, Chunying,Li, Yaobin,&He, Hong.(2022).Acid pretreatment of support promotes Pd/SiO2 activity for formaldehyde oxidation at room temperature.CATALYSIS SCIENCE & TECHNOLOGY(0),1-8. |
| MLA | Liu, Xiaofeng,et al."Acid pretreatment of support promotes Pd/SiO2 activity for formaldehyde oxidation at room temperature".CATALYSIS SCIENCE & TECHNOLOGY .0(2022):1-8. |
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| Acid pretreatment of（1931KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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