Synthesis of a Hexagonal-Phase Platinum-Lanthanide Alloy as a Durable Fuel-Cell-Cathode Catalyst
文献类型：期刊论文
| 作者 | Xu, Shi-Long; Zhao, Shuai; Zeng, Wei-Jie; Li, Shuai ; Zuo, Ming; Lin, Yue; Chu, Shengqi; Chen, Ping; Liu, Jun,; Liang, Hai-Wei
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| 刊名 | Chemistry of Materials
 |
| 出版日期 | 2022 |
| 卷号 | 34期号:23页码:10789-10797 |
| ISSN号 | 08974756 |
| DOI | 10.1021/acs.chemmater.2c03219 |
| 文献子类 | Article |
| 英文摘要 | Carbon-supported platinum-lanthanide alloy nanoparticles are promising fuel-cell-cathode catalysts with enhanced electrocatalytic performance, but synthetic challenges remain because of high O affinity and very negative reduction potential of lanthanide elements. Herein, we demonstrate an industrially relevant impregnation approach for the general synthesis of a carbon-supported intermetallic hexagonal Pt5Ln (Ln = La, Ce, Pr, and Nd) catalyst by the interparticle-distance-dependent hydrogen-spillover strategy. We understand that increasing the available area of hydrogen spillover by narrowing the interparticle distance can facilitate the reduction of Ln around Pt, which guarantees the alloying of Pt with enough amount of Ln and thus promotes the formation of a thermodynamically favorable intermetallic hexagonal Pt5Ln phase. The prepared hexagonal Pt5Ln catalysts show enhanced oxygen reduction reaction activity in H2-O2 fuel cells and improved power density and durability in practical H2-air fuel cells. Our method is facile, universal, and scalable and opens a general route for intermetallic Pt-Ln catalyst synthesis that is conventionally challenging. © 2022 American Chemical Society. |
| 电子版国际标准刊号 | 15205002 |
| 语种 | 英语 |
| WOS记录号 | WOS:000886706100001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299347]  |
| 专题 | 高能物理研究所_东莞分部 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Xu, Shi-Long,Zhao, Shuai,Zeng, Wei-Jie,et al. Synthesis of a Hexagonal-Phase Platinum-Lanthanide Alloy as a Durable Fuel-Cell-Cathode Catalyst[J]. Chemistry of Materials,2022,34(23):10789-10797. |
| APA | Xu, Shi-Long.,Zhao, Shuai.,Zeng, Wei-Jie.,Li, Shuai.,Zuo, Ming.,...&Liang, Hai-Wei.(2022).Synthesis of a Hexagonal-Phase Platinum-Lanthanide Alloy as a Durable Fuel-Cell-Cathode Catalyst.Chemistry of Materials,34(23),10789-10797. |
| MLA | Xu, Shi-Long,et al."Synthesis of a Hexagonal-Phase Platinum-Lanthanide Alloy as a Durable Fuel-Cell-Cathode Catalyst".Chemistry of Materials 34.23(2022):10789-10797. |
入库方式： OAI收割
来源：高能物理研究所
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