Identification of the structure of the bi promoted pt non-oxidative coupling of methane catalyst: a nanoscale pt3bi intermetallic alloy
文献类型：期刊论文
| 作者 | Chen, Johnny Zhu1; Wu, Zhenwei1,3; Zhang, Xiaoben2; Choi, Slgi1; Xiao, Yang1; Varma, Arvind1; Liu, Wei2; Zhang, Guanghui1,4; Miller, Jeffrey T.1 |
| 刊名 | Catalysis science & technology
 |
| 出版日期 | 2019-03-21 |
| 卷号 | 9期号:6页码:1349-1356 |
| ISSN号 | 2044-4753 |
| DOI | 10.1039/c8cy02171f |
| 通讯作者 | Zhang, guanghui(gzhang@dlut.edu.cn) ; Miller, jeffrey t.(mill1194@purdue.edu) |
| 英文摘要 | Recently, stable non-oxidative conversion of methane (nocm) for up to 8 h with a c-2 selectivity greater than 90% has been reported over pt-bi/zsm-5 at moderate temperatures (600-700 degrees c). in this study, we show that the structure of the bimetallic nanoparticles on pt-bi/zsm-5 catalyst is similar to pt-bi/sio2. exafs indicates the formation of pt-rich bimetallic pt-bi nanoparticles with pt-bi bond distance of 2.80 a. the xrd spectra (on sio2) are consistent with cubic, intermetallic surface pt3bi phase on a pt core. the pt3bi structure is not known in the thermodynamic phase diagram. in all catalysts, only a small fraction of bi alloys with pt. at high bi loadings, excess bi reduces at high temperature, covering the catalytic surface leading to a loss in activity. at lower bi loadings with little excess bi, the pt3bi surface is effective for non-oxidative coupling of ch4 (on zsm-5) and propane dehydrogenation (on sio2). |
| WOS关键词 | PROPANE DEHYDROGENATION ; ETHANE ; CONVERSION ; PLATINUM ; ETHYLENE ; SILICA ; SN |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000462662100023 |
| 出版者 | ROYAL SOC CHEMISTRY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2372629 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Zhang, Guanghui; Miller, Jeffrey T. |
| 作者单位 | 1.Purdue Univ, Davidson Sch Chem Engn, 180 Stadium Mall Dr, W Lafayette, IN 47907 USA 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China 3.Sch Chem Engn, 443 Via Ortega, Stanford, CA 94305 USA 4.Dalian Univ Technol, Sch Chem Engn, PSU DUT Joint Ctr Energy Res, State Key Lab Fine Chem, Dalian 116024, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Johnny Zhu,Wu, Zhenwei,Zhang, Xiaoben,et al. Identification of the structure of the bi promoted pt non-oxidative coupling of methane catalyst: a nanoscale pt3bi intermetallic alloy[J]. Catalysis science & technology,2019,9(6):1349-1356. |
| APA | Chen, Johnny Zhu.,Wu, Zhenwei.,Zhang, Xiaoben.,Choi, Slgi.,Xiao, Yang.,...&Miller, Jeffrey T..(2019).Identification of the structure of the bi promoted pt non-oxidative coupling of methane catalyst: a nanoscale pt3bi intermetallic alloy.Catalysis science & technology,9(6),1349-1356. |
| MLA | Chen, Johnny Zhu,et al."Identification of the structure of the bi promoted pt non-oxidative coupling of methane catalyst: a nanoscale pt3bi intermetallic alloy".Catalysis science & technology 9.6(2019):1349-1356. |
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来源：大连化学物理研究所
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