Role of Manganese Oxide in Syngas Conversion to Light Olefins
文献类型：期刊论文
| 作者 | Yang, Junhao2,3; Han, Yong1,4; Ding, Minzheng2; Zhu, Yifeng2; Pan, Xiulian2; Bao, Xinhe2; Jiao, Feng2,3; Liu, Zhi1,4; Li, Jian2,3 |
| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 7期号:4页码:2800-2804 |
| 关键词 | syngas chemistry light olefins manganese oxides CO dissociation bifunctional catalysts heterogeneous catalysis oxide-zeolite |
| 英文摘要 | The key of syngas (a mixture of CO and H-2) chemistry lies in controlled dissociative activation of CO and C-C coupling. We demonstrate here that a bifunctional catalyst of partially reducible manganese oxide in combination with SAPO-34 catalyzes the selective formation of light olefins, which validates the generality of the OX-ZEO (oxide-zeolite) concept for syngas conversion. Results from in situ ambient pressure X-ray photoelectron spectroscopy, infrared spectroscopy, and temperature-programmed surface reactions reveal the critical role of oxygen vacancies on the oxide surface, where CO dissociates and is converted into surface carbonate and carbon species. They are converted to CO2 and CHx in the presence of H-2. The limited C-C coupling and hydrogenation activities of MnO enable the reaction selectivity to be controlled by the confined pores of SAPO-34. Thus, a selectivity of light olefins up to 80% is achieved, far beyond the limitation of Anderson-Shultz-Flory distribution. These findings open up possibilities to explore other active metal oxides for more efficient syngas conversion. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | WATER-GAS SHIFT ; FISCHER-TROPSCH SYNTHESIS ; SELECTIVE CONVERSION ; ELECTRONIC-STRUCTURE ; DEPTH-PROFILE ; CATALYSTS ; RANGE ; OXIDATION ; CERIA ; XPS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000398986700067 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/150338]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Zhongshan Rd 457, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Junhao,Han, Yong,Ding, Minzheng,et al. Role of Manganese Oxide in Syngas Conversion to Light Olefins[J]. ACS CATALYSIS,2017,7(4):2800-2804. |
| APA | Yang, Junhao.,Han, Yong.,Ding, Minzheng.,Zhu, Yifeng.,Pan, Xiulian.,...&Li, Jian.(2017).Role of Manganese Oxide in Syngas Conversion to Light Olefins.ACS CATALYSIS,7(4),2800-2804. |
| MLA | Yang, Junhao,et al."Role of Manganese Oxide in Syngas Conversion to Light Olefins".ACS CATALYSIS 7.4(2017):2800-2804. |
入库方式： OAI收割
来源：大连化学物理研究所
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