Effect of amounts of urea on Mn-substituted hexaaluminate catalysts prepared by hydrothermal synthesis
文献类型：期刊论文
| 作者 | Xu, JG; Tian, ZJ; Wang, JW; Zu, YP; Xu, ZS; Lin, LW |
| 刊名 | chemical journal of chinese universities-chinese
 |
| 出版日期 | 2004 |
| 卷号 | 25期号:1页码:90-94 |
| 关键词 | methane catalytical combustion hexaaluminate hydrothermal synthesis urea |
| 英文摘要 | mn-substituted hexaaluminate catalysts were prepared by hydrothermal synthesis based on hydrolysis of urea. the effects of amounts of urea[n(urea)/n(m+), m+ is metal cation with a single charge] added on chemical composition, phase, pore structure and methane combustion activity of the lamnal11o19-alpha catalysts were investigated. when n (urea)/n(m+)=1.0, mn2+ ions did not precipitated completely and the activity of the catalyst for methane combustion was low. with n(urea)/n(m+) ratio increasing to 2.0, the activity of catalyst was increased due to more amounts of hexaaluminate phase and larger pore diameter in the catalyst. with increasing of n(urea)/n(m+) ratio further more, the activity of catalyst was decreased because amounts of hexaaluminate phase in the catalyst were decreased and the pore diameter of the catalyst became smaller. the life test during 100 h the catalyst prepared with n(urea)/n(m+)=2.0 was carried out and the results showed that the activity of the catalyst for methane combustion and the specific surface area of the catalyst were maintained during, 100 h life test. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | methane combustion ; surface-area |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000188470400022 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139369]  |
| 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, Res Lab Nat Gas Chem Engn & Applicat, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalyt Basis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, JG,Tian, ZJ,Wang, JW,et al. Effect of amounts of urea on Mn-substituted hexaaluminate catalysts prepared by hydrothermal synthesis[J]. chemical journal of chinese universities-chinese,2004,25(1):90-94. |
| APA | Xu, JG,Tian, ZJ,Wang, JW,Zu, YP,Xu, ZS,&Lin, LW.(2004).Effect of amounts of urea on Mn-substituted hexaaluminate catalysts prepared by hydrothermal synthesis.chemical journal of chinese universities-chinese,25(1),90-94. |
| MLA | Xu, JG,et al."Effect of amounts of urea on Mn-substituted hexaaluminate catalysts prepared by hydrothermal synthesis".chemical journal of chinese universities-chinese 25.1(2004):90-94. |
入库方式： OAI收割
来源：大连化学物理研究所
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