Isobutane dehydrogenation over chromia alumina catalysts prepared from MIL-101: Insight into chromium species on activity and selectivity
文献类型：期刊论文
| 作者 | Zhao HH(赵华华)1 ; Song HL(宋焕玲)1,2; Miao ZC(苗智超)1,3; Chou LJ(丑凌军)1,2; Chou LJ(丑凌军)
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| 刊名 | Journal of Energy Chemistry
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| 出版日期 | 2014 |
| 卷号 | 23期号:6页码:708-716 |
| 关键词 | isobutane dehydrogenation chromia alumina solid solution metal organic framework MIL-101 |
| ISSN号 | 2095-4956 |
| 通讯作者 | 丑凌军 |
| 英文摘要 | Various mesoporous chromia alumina catalysts were prepared by five different methods based on a metal-organic framework MIL-101 and their catalytic performances over isobutane dehydrogenation were investigated. The highly dispersed chromium species were produced on catalyst KCrAl-I1 with largest specific surface area of 198 m2·g−1 prepared with aluminium isopropoxide (Al(i-OC3H7)3) by ultrasonic impregnation method. However, the catalyst KCrAl-I2 synthesized by stirring impregnation possessed crystalline α-Cr2O3 phase, which was poorly dispersed. Two types of Cr-rich and Al-rich CrxAl2−xO3 solid solutions, designated as CrAl-I and CrAl-II phase, were formed over the catalysts KCrAl-I3 (prepared by Al(i-OC3H7)3 with nitric acid regulation), KCrAl-C4 (prepared by aluminium chloride hexahydrate) and KCrAl-N5 (prepared by aluminium nitrate nonahydrate). Catalytic evaluation results revealed that KCrAl-I1 exhibited the high isobutane conversion due to its highly dispersed chromium species. However, KCrAl-I3, KCrAl-C4 and KCrAl-N5 showed the higher isobutene selectivity (95.2%−96.4%) on account of the formation of chromia alumina solid solutions in the catalysts. Moreover, the solid solution over the chromia alumina catalysts could greatly suppress the coke formation. |
| 学科主题 | 物理化学与绿色催化 |
| 收录类别 | SCI |
| 资助信息 | the National Basic Research Program of China (No. 2011CB201404);the National Natural Science Foundation of China (No. 21133011);Suzhou Science and Technology Bureau of Applied Foundation Research Project (SYG201219) |
| 语种 | 英语 |
| WOS记录号 | WOS:000346331100005 |
| 公开日期 | 2014-11-25 |
| 源URL | [http://210.77.64.217/handle/362003/6788]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 |
| 通讯作者 | Chou LJ(丑凌军) |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Gansu, Peoples R China 2.Inst Nanotech & Nanobion, Suzhou 215123, Jiangsu, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao HH,Song HL,Miao ZC,et al. Isobutane dehydrogenation over chromia alumina catalysts prepared from MIL-101: Insight into chromium species on activity and selectivity[J]. Journal of Energy Chemistry,2014,23(6):708-716. |
| APA | Zhao HH,Song HL,Miao ZC,Chou LJ,&丑凌军.(2014).Isobutane dehydrogenation over chromia alumina catalysts prepared from MIL-101: Insight into chromium species on activity and selectivity.Journal of Energy Chemistry,23(6),708-716. |
| MLA | Zhao HH,et al."Isobutane dehydrogenation over chromia alumina catalysts prepared from MIL-101: Insight into chromium species on activity and selectivity".Journal of Energy Chemistry 23.6(2014):708-716. |
入库方式： OAI收割
来源：兰州化学物理研究所
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