Au@Pd Bimetallic Nanocatalyst for Carbon-Halogen Bond Cleavage: An Old Story with New Insight into How the Activity of Pd is Influenced by Au
文献类型：期刊论文
| 作者 | Fang, Li-ping; Liu, Rui; Chen, Hui-min; Xu, Cuihong; He, Zuoliang; Lai, Yujian; Zhao, Huachao; Bekana, Deribachew; Liu, Jing-fu |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2018-04-03 |
| 卷号 | 52期号:7页码:4244-4255 |
| ISSN号 | 0013-936X |
| 文献子类 | Article |
| 英文摘要 | AuPd bimetallic nanocatalysts exhibit superior catalytic performance in the cleavage of carbon halogen bonds (C-X) in the hazardous halogenated pollutants. A better understanding of how Au atoms promote the reactivity of Pd sites rather than vaguely interpreting as bimetallic effect and determining which type of Pd sites are necessary for these reactions are crucial factors for the design of atomically precise nanocatalysts that make full use of both the Pd and Au atoms. Herein, we systematically manipulated the coordination number of Pd Pd, d-orbital occupation state, and the Au-Pd interface of the Pd reactive centers and studied the structure activity relationship of Au Pd in the catalyzed cleavage of C-X bonds. It is revealed that Au enhanced the activity of Pd atoms primarily by increasing the occupation state of Pd d-orbitals. Meanwhile, among the Pd sites formed on the Au surface, five to seven contiguous Pd atoms, three or four adjacent Pd atoms, and isolated Pd atoms were found to be the most active in the cleavage of C-Cl, C-Br, and C-I bonds, respectively. Besides, neighboring Au atoms directly contribute to the weakening of the C-Br/C-I bond. This work provides new insight into the rational design of bimetallic metal catalysts with specific catalytic properties. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/40884]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Fang, Li-ping,Liu, Rui,Chen, Hui-min,et al. Au@Pd Bimetallic Nanocatalyst for Carbon-Halogen Bond Cleavage: An Old Story with New Insight into How the Activity of Pd is Influenced by Au[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2018,52(7):4244-4255. |
| APA | Fang, Li-ping.,Liu, Rui.,Chen, Hui-min.,Xu, Cuihong.,He, Zuoliang.,...&Liu, Jing-fu.(2018).Au@Pd Bimetallic Nanocatalyst for Carbon-Halogen Bond Cleavage: An Old Story with New Insight into How the Activity of Pd is Influenced by Au.ENVIRONMENTAL SCIENCE & TECHNOLOGY,52(7),4244-4255. |
| MLA | Fang, Li-ping,et al."Au@Pd Bimetallic Nanocatalyst for Carbon-Halogen Bond Cleavage: An Old Story with New Insight into How the Activity of Pd is Influenced by Au".ENVIRONMENTAL SCIENCE & TECHNOLOGY 52.7(2018):4244-4255. |
入库方式： OAI收割
来源：生态环境研究中心
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