Higher Oxidation State Responsible for Ozone Decomposition at Room Temperature over Manganese and Cobalt Oxides: Effect of Calcination Temperature
文献类型：期刊论文
| 作者 | Tang, Wen-Xiang1,2; Liu, Hai-Di1; Wu, Xiao-Feng1; Chen, Yun-Fa1 |
| 刊名 | OZONE-SCIENCE & ENGINEERING
 |
| 出版日期 | 2014 |
| 卷号 | 36期号:5页码:502-512 |
| 关键词 | Ozone Ozone Decomposition Catalysis Oxidation State Thermal Treatment |
| ISSN号 | 0191-9512 |
| 其他题名 | Ozone-Sci. Eng. |
| 中文摘要 | The heterogeneous catalytic decomposition of ozone was investigated over unsupported manganese and cobalt oxide at room temperature. All catalysts were characterized by X-ray diffraction (XRD), N-2 adsorption-desorption (Brunauer-Emmet-Teller method), H-2-temperature programmed reduction (H-2-TPR) and X-ray photoelectron spectroscopy (XPS). The catalytic activity test indicated that these oxides had a good activity on ozone conversion meanwhile the catalysts remained highly active over time under reaction conditions. The treated temperature of the catalyst had a significant impact on the performance of ozone abatement and the samples treated at lower temperature showed higher activity. The surface area decreased obviously when developing the calcination temperature and H-2-TPR results demonstrated that much higher oxidation state of metal ions and active oxygen species were maintained on the surface under low treated temperature. XPS analysis showed that there were higher oxidation states of metal ions (Mn4+ and Co3+) and adsorbed oxygen species on the surface of catalysts treated at lower temperature, both of which play a significant role in ozone decomposition. However, the activity of manganese oxide was higher than that of cobalt oxide and the possible reason for this phenomenon was discussed. |
| 英文摘要 | The heterogeneous catalytic decomposition of ozone was investigated over unsupported manganese and cobalt oxide at room temperature. All catalysts were characterized by X-ray diffraction (XRD), N-2 adsorption-desorption (Brunauer-Emmet-Teller method), H-2-temperature programmed reduction (H-2-TPR) and X-ray photoelectron spectroscopy (XPS). The catalytic activity test indicated that these oxides had a good activity on ozone conversion meanwhile the catalysts remained highly active over time under reaction conditions. The treated temperature of the catalyst had a significant impact on the performance of ozone abatement and the samples treated at lower temperature showed higher activity. The surface area decreased obviously when developing the calcination temperature and H-2-TPR results demonstrated that much higher oxidation state of metal ions and active oxygen species were maintained on the surface under low treated temperature. XPS analysis showed that there were higher oxidation states of metal ions (Mn4+ and Co3+) and adsorbed oxygen species on the surface of catalysts treated at lower temperature, both of which play a significant role in ozone decomposition. However, the activity of manganese oxide was higher than that of cobalt oxide and the possible reason for this phenomenon was discussed. |
| WOS标题词 | Science & Technology ; Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Engineering, Environmental ; Environmental Sciences |
| 研究领域[WOS] | Engineering ; Environmental Sciences & Ecology |
| 关键词[WOS] | BOND VALENCE SUMS ; COORDINATION CHEMISTRY ; AIR-POLLUTION ; O BONDS ; CATALYSTS ; GAS ; NOX ; CO ; SPECTROSCOPY ; COMPLEXES |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000342320800012 |
| 公开日期 | 2014-11-02 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11653]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Wen-Xiang,Liu, Hai-Di,Wu, Xiao-Feng,et al. Higher Oxidation State Responsible for Ozone Decomposition at Room Temperature over Manganese and Cobalt Oxides: Effect of Calcination Temperature[J]. OZONE-SCIENCE & ENGINEERING,2014,36(5):502-512. |
| APA | Tang, Wen-Xiang,Liu, Hai-Di,Wu, Xiao-Feng,&Chen, Yun-Fa.(2014).Higher Oxidation State Responsible for Ozone Decomposition at Room Temperature over Manganese and Cobalt Oxides: Effect of Calcination Temperature.OZONE-SCIENCE & ENGINEERING,36(5),502-512. |
| MLA | Tang, Wen-Xiang,et al."Higher Oxidation State Responsible for Ozone Decomposition at Room Temperature over Manganese and Cobalt Oxides: Effect of Calcination Temperature".OZONE-SCIENCE & ENGINEERING 36.5(2014):502-512. |
入库方式： OAI收割
来源：过程工程研究所
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