A Surface Defect-Promoted Ni Nanocatalyst with Simultaneously Enhanced Activity and Stability
文献类型：期刊论文
| 作者 | He, S; Li, CM; Chen, H; Su, DS; Zhang, BS; Cao, XZ; Wang, BY; Wei, M; Evans, DG; Duan, X;曹兴忠 |
| 刊名 | CHEMISTRY OF MATERIALS
 |
| 出版日期 | 2013 |
| 卷号 | 25期号:7页码:1040-1046 |
| 关键词 | Ni nanocatalyst surface defect low-temperature activation CO2 methanation layered double hydroxides |
| 英文摘要 | How to achieve supported metal nanocatalysts with simultaneously enhanced activity and stability is of vital importance in heterogeneous catalysis and remains a challenging goal. In this work, a surface defect-promoted Ni nanocatalyst with a high dispersion and high particle density embedded on a hierarchical Al2O3 matrix was fabricated via a facile method involving an in situ reduction process, which exhibits excellent activity and stability simultaneously for the reaction of CO2 methanation. HRTEM, HAADF-STEM, EXAFS, and positron annihilation spectroscopy demonstrate the existence of abundant surface vacancy clusters that serve as active sites, accounting for the significantly enhanced low the temperature activity of the supported Ni nanoparticles. In addition, the anchoring effect from support gives rise to a high reaction stability, without sintering and/or aggregation of active species during long-term use. |
| 学科主题 | Chemistry; Materials Science |
| 收录类别 | SCI |
| WOS记录号 | WOS:000317438600004 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224100]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | He, S,Li, CM,Chen, H,et al. A Surface Defect-Promoted Ni Nanocatalyst with Simultaneously Enhanced Activity and Stability[J]. CHEMISTRY OF MATERIALS,2013,25(7):1040-1046. |
| APA | He, S.,Li, CM.,Chen, H.,Su, DS.,Zhang, BS.,...&王宝义.(2013).A Surface Defect-Promoted Ni Nanocatalyst with Simultaneously Enhanced Activity and Stability.CHEMISTRY OF MATERIALS,25(7),1040-1046. |
| MLA | He, S,et al."A Surface Defect-Promoted Ni Nanocatalyst with Simultaneously Enhanced Activity and Stability".CHEMISTRY OF MATERIALS 25.7(2013):1040-1046. |
入库方式： OAI收割
来源：高能物理研究所
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