Promoting role of potassium in the reverse water gas shift reaction on Pt/mullite catalyst
文献类型：期刊论文
| 作者 | Liang, Binglian1,2; Duan, Hongmin1; Su, Xiong1; Chen, Xiaodong1,2; Huang, Yanqiang1; Chen, Xiaowei3; Jose Delgado, Juan3; Zhang, Tao1 |
| 刊名 | CATALYSIS TODAY
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 281页码:319-326 |
| 关键词 | Reverse water gas shift reaction Potassium Platinum Mullite |
| 英文摘要 | The promotional effect of potassium in the reverse water gas shift reaction (RWGS) was studied for Pt/mullite catalyst. The addition of potassium on Pt/mullite significantly enhanced the CO2 conversion and hindered the formation of methane as a by-product. The turnover frequency (TOF) at 340 degrees C was enhanced by potassium up to 7 times that of Pt/mullite. TEM observations indicated a slight Pt particle size growth on the K-promoted sample. Characterization results by means of H-2-TPR and XPS revealed the strong interaction between KOx and Pt, which stabilized the Pt in a higher oxidation state. DRIFTS observation under the RWGS conditions suggested that the newly created interface between KOx and Pt served as the active site for formate decomposition to produce CO. The presence of potassium also weakened the strength of CO adsorption on Pt, which hindered the further hydrogenation of CO into CH4 through C-O bond dissociation. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical |
| 研究领域[WOS] | Chemistry ; Engineering |
| 关键词[WOS] | CARBON-DIOXIDE HYDROGENATION ; PALLADIUM CATALYSTS ; CO2 HYDROGENATION ; PT/TIO2 CATALYSTS ; PARTICLE-SIZE ; FORM METHANOL ; REDUCTION ; MECHANISM ; OXIDATION ; COADSORPTION |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000390623300011 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/151837]  |
| 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, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Univ Cadiz, Fac Ciencias, Dept Ciencia Mat & Ingn Met & Quim Inorgan, Cadiz, Spain |
| 推荐引用方式 GB/T 7714 | Liang, Binglian,Duan, Hongmin,Su, Xiong,et al. Promoting role of potassium in the reverse water gas shift reaction on Pt/mullite catalyst[J]. CATALYSIS TODAY,2017,281:319-326. |
| APA | Liang, Binglian.,Duan, Hongmin.,Su, Xiong.,Chen, Xiaodong.,Huang, Yanqiang.,...&Zhang, Tao.(2017).Promoting role of potassium in the reverse water gas shift reaction on Pt/mullite catalyst.CATALYSIS TODAY,281,319-326. |
| MLA | Liang, Binglian,et al."Promoting role of potassium in the reverse water gas shift reaction on Pt/mullite catalyst".CATALYSIS TODAY 281(2017):319-326. |
入库方式： OAI收割
来源：大连化学物理研究所
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