Probing the Electronic Effect of Carbon Nanotubes in Catalysis: NH3 Synthesis with Ru Nanoparticles
文献类型：期刊论文
| 作者 | Guo, Shujing1; Pan, Xiulian1; Gao, Haili2,3; Yang, Zhiqiang1; Zhao, Jijun2,3; Bao, Xinhe1 |
| 刊名 | chemistry-a european journal
 |
| 出版日期 | 2010 |
| 卷号 | 16期号:18页码:5379-5384 |
| 关键词 | ammonia calorimetry carbon nanotubes confinement ruthenium |
| 英文摘要 | carbon nanotubes (cnts) have been shown to modify some properties of nanomaterials and to modify chemical reactions confined inside their channels, which are formed by curved graphene layers. here we studied ammonia synthesis over ru as a probe reaction to understand the effect of the electron structure of cnts on the confined metal particles and their catalytic activity. the catalyst with ru nanoparticles dispersed almost exclusively on the exterior nanotube surface exhibits a higher activity than the cnt-confined ru, although both have a similar metal particle size. characterization with tem, n-2 physisorption, h-2 chemisorption, temperature-programmed reduction. co adsorption microcalorimetry, and first-principles calculations suggests that the outside ru exhibits a higher electron density than the inside ru. as a result, the dissociative adsorption of n-2 which is an electrophilic process and the rate-determining step of ammonia synthesis. is more facile over the outside ru than that over the inside one. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | ammonia-synthesis ; ruthenium catalyst ; surfaces ; molecules ; chemistry ; metal ; iron ; co ; hydrogenation ; confinement |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000277988900018 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142189]  |
| 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, Dalian 116023, Peoples R China 2.Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China 3.Dalian Univ Technol, Coll Adv Sci & Technol, Dalian 116024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Shujing,Pan, Xiulian,Gao, Haili,et al. Probing the Electronic Effect of Carbon Nanotubes in Catalysis: NH3 Synthesis with Ru Nanoparticles[J]. chemistry-a european journal,2010,16(18):5379-5384. |
| APA | Guo, Shujing,Pan, Xiulian,Gao, Haili,Yang, Zhiqiang,Zhao, Jijun,&Bao, Xinhe.(2010).Probing the Electronic Effect of Carbon Nanotubes in Catalysis: NH3 Synthesis with Ru Nanoparticles.chemistry-a european journal,16(18),5379-5384. |
| MLA | Guo, Shujing,et al."Probing the Electronic Effect of Carbon Nanotubes in Catalysis: NH3 Synthesis with Ru Nanoparticles".chemistry-a european journal 16.18(2010):5379-5384. |
入库方式： OAI收割
来源：大连化学物理研究所
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