Design of Highly Efficient Pt-SnO2 Hydrogenation Nanocatalysts using Pt@Sn Core-Shell Nanoparticles
文献类型：期刊论文
| 作者 | Liu, Miaomiao; Xie, Zhaohui; Yu, Hongbo; Yin, Hongfeng; Xu, Yisheng; Zhao, Shuangliang; Zhou, Shenghu; Tang, Weiqiang |
| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2017 |
| 卷号 | 7期号:3页码:1583-1591 |
| ISSN号 | 2155-5435 |
| 英文摘要 | In this work, Pt-SnO2 heteroaggregate nano catalysts were synthesized by in situ transformation of Pt@Sn core-shell nanoparticles and their catalytic performance for hydrogenation of various substituted nitroaromatics was investigated. The Pt@Sn nanoparticles were prepared by a one-step method, and the alumina-supported Pt@Sn nano particles were further transformed in situ into Pt-SnO2 heteroaggregate nanostructures by calcination. The structures of Pt@Sn and Pt-SnO2 nanomaterials were characterized, and FT-IR with CO probes, HRTEM, XRD, and XPS characterizations revealed that the as-synthesized Pt@Sn nanoparticles were core@shell-like structures with Sn-rich shells and Pt-rich cores and the obtained Pt-SnO2 heteroaggregate nanostructures consisted of close-contact pure Pt and SnO2 phases. The Pt-SnO2/Al2O3 nanostructures demonstrated a better catalytic performance for hydrogenation of various substituted nitroaromatics relative to individual Pt/Al2O3 nanocatalysts. Theoretical calculations suggested that Pt-SnO2 nanocatalysts can slightly facilitate the adsorption of H-2 and o-chloronitrobenzene and strongly weaken the binding of Pt/o-chloroaniline, resulting in more available reactants and easier release of products from the catalyst surfaces. The theoretical calculations indicated that the enhanced catalytic performance may originate from a cooperative interaction between Pt and SnO2. |
| 公开日期 | 2017-12-25 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/13961]  |
| 专题 | 2017专题 |
| 推荐引用方式 GB/T 7714 | Liu, Miaomiao,Xie, Zhaohui,Yu, Hongbo,et al. Design of Highly Efficient Pt-SnO2 Hydrogenation Nanocatalysts using Pt@Sn Core-Shell Nanoparticles[J]. ACS CATALYSIS,2017,7(3):1583-1591. |
| APA | Liu, Miaomiao.,Xie, Zhaohui.,Yu, Hongbo.,Yin, Hongfeng.,Xu, Yisheng.,...&Tang, Weiqiang.(2017).Design of Highly Efficient Pt-SnO2 Hydrogenation Nanocatalysts using Pt@Sn Core-Shell Nanoparticles.ACS CATALYSIS,7(3),1583-1591. |
| MLA | Liu, Miaomiao,et al."Design of Highly Efficient Pt-SnO2 Hydrogenation Nanocatalysts using Pt@Sn Core-Shell Nanoparticles".ACS CATALYSIS 7.3(2017):1583-1591. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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