A one-pot synthesis of a monolithic Cu2O/Cu catalyst for efficient ozone decomposition
文献类型：期刊论文
| 作者 | Rahimi, Mohammad Ghasem1,2; Wang, Anqi1,2; Ma, Guojun3,4; Han, Ning1,4; Chen, Yunfa1,4 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2020-11-10 |
| 卷号 | 10期号:67页码:40916-40922 |
| DOI | 10.1039/d0ra05157h |
| 英文摘要 | Nowadays, it is necessary and challenging to prepare monolithic catalysts, which are ready for use, preventing the tedious and complicated integration procedure of the powder materials onto a porous substrate. Herein, Cu2O nanoparticles are successfully synthesized onto a porous Cu foam in one pot via the surface oxidation, coordination and precipitation reactions in a NH4OH and HCl solution, and the optimum synthesis conditions are a NH3 : HCl ratio of 1 : 0.9, oxidation temperature of 80 degrees C and time of 18 h. The obtained Cu2O/Cu catalyst (mostly <100 nm) shows a highly active O-3 decomposition performance with >98% and >80% conversion efficiency in dry and 90% relative humidity air for >10 h at an O-3 concentration of 20 ppm and a gas hourly space velocity of 12 500 h(-1). The high efficiency can be attributed to the porous Cu foam providing a large contact area, abundant crystal defects in the nanometer-sized Cu2O materials serving as the active sites, and also to the Schottky barrier formed in the Cu2O/Cu interface facilitating the electron transfer for O-3 degradation. All these results show the potency of the easily fabricated monolithic Cu2O/Cu catalyst for the highly efficient O-3 contaminant removal. |
| WOS关键词 | RAMAN-SCATTERING ; AIRBORNE OZONE ; GAS-PHASE ; COPPER ; OXIDE ; CU ; EVOLUTION ; HETEROJUNCTION ; ADSORPTION ; MECHANISM |
| 资助项目 | National Key R&D Program of China[2016YFC0207100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB05050400] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000588975500029 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/42563]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Han, Ning; Chen, Yunfa |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Sci & Technol Particle Mat, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rahimi, Mohammad Ghasem,Wang, Anqi,Ma, Guojun,et al. A one-pot synthesis of a monolithic Cu2O/Cu catalyst for efficient ozone decomposition[J]. RSC ADVANCES,2020,10(67):40916-40922. |
| APA | Rahimi, Mohammad Ghasem,Wang, Anqi,Ma, Guojun,Han, Ning,&Chen, Yunfa.(2020).A one-pot synthesis of a monolithic Cu2O/Cu catalyst for efficient ozone decomposition.RSC ADVANCES,10(67),40916-40922. |
| MLA | Rahimi, Mohammad Ghasem,et al."A one-pot synthesis of a monolithic Cu2O/Cu catalyst for efficient ozone decomposition".RSC ADVANCES 10.67(2020):40916-40922. |
入库方式： OAI收割
来源：过程工程研究所
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