Role of different coordinated Cu and reactive oxygen species on the highly active Cu-Ce-Zr mixed oxides in NH3-SCO: a combined in situ EPR and O-2-TPD approach
文献类型：期刊论文
| 作者 | Qu, Zhenping1; Wang, Zhong1,2 ; Zhang, Xiaoyu1; Wang, Hui1
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| 刊名 | CATALYSIS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:12页码:4491-4502 |
| 英文摘要 | Novel Cu-Ce-Zr mixed oxides were synthesized by a citric acid sol-gel method, and they exhibited an excellent NH3-SCO activity (180 degrees C, TOF = 1.33 h(-1)). The finely dispersed CuO, Cu-Ce-Zr solid solution and monomeric Cu2+ ions in octahedral sites were the main active sites. The finely dispersed CuO species were the NH3 adsorption sites, and their adsorption capacity could be improved by their good reducibility. The Cu-Ce-Zr solid solution was an important intermediate in oxygen transfer from bulk to surface. In situ EPR analysis indicated that the isolated Cu2+ located in the octahedral sites was more active compared with that located in the square-planar pyramidal sites, and it induced the formation of more Cu-Ce-Zr solid solution. Meanwhile, the in situ O-2-TPD results showed that both adsorbed oxygen and bulk lattice oxygen were the active oxygen adspecies, and the adsorbed oxygen molecules were more active than the bulk lattice oxygen in NH3 oxidation. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | SELECTIVE CATALYTIC-OXIDATION ; ELECTRON-PARAMAGNETIC-RESONANCE ; COPPER(II) ION-PAIRS ; SILVER-BASED CATALYSTS ; TRANSITION-METAL ; COMPOSITE CATALYST ; SOOT COMBUSTION ; AMMONIA ; NITROGEN ; TEMPERATURE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000378276300045 |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/9360]  |
| 专题 | 青岛生物能源与过程研究所_多相催化转化团队 |
| 作者单位 | 1.Dalian Univ Technol, Key Lab Ind Ecol & Environm Engn, Sch Environm Sci & Technol, Dalian 116024, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qu, Zhenping,Wang, Zhong,Zhang, Xiaoyu,et al. Role of different coordinated Cu and reactive oxygen species on the highly active Cu-Ce-Zr mixed oxides in NH3-SCO: a combined in situ EPR and O-2-TPD approach[J]. CATALYSIS SCIENCE & TECHNOLOGY,2016,6(12):4491-4502. |
| APA | Qu, Zhenping,Wang, Zhong,Zhang, Xiaoyu,&Wang, Hui.(2016).Role of different coordinated Cu and reactive oxygen species on the highly active Cu-Ce-Zr mixed oxides in NH3-SCO: a combined in situ EPR and O-2-TPD approach.CATALYSIS SCIENCE & TECHNOLOGY,6(12),4491-4502. |
| MLA | Qu, Zhenping,et al."Role of different coordinated Cu and reactive oxygen species on the highly active Cu-Ce-Zr mixed oxides in NH3-SCO: a combined in situ EPR and O-2-TPD approach".CATALYSIS SCIENCE & TECHNOLOGY 6.12(2016):4491-4502. |
入库方式： OAI收割
来源：青岛生物能源与过程研究所
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