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Updated: Jun 6, 2025

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

亚纳米 Pt-W 双金属集群用于高效的性进化电催化.

Shoushun Chen¹, Cong Ma², Jiabin Xu³

¹Lanzhou Magnetic Resonance Center, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.

|November 28, 2024

概括

研究人员开发了一种简单的策略,在添加碳上合成完全暴露的-亚纳米双金属集群 (SBC). 这些PtW/NC材料在性进化反应中表现出了卓越的性能.

关键词:

完全暴露的全部暴露.的进化的进化的进化金属-有机的框架.聚氧金属酸盐的使用方法亚纳米的双金属集群.

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科学领域:

材料科学材料科学材料科学
电化学电化学电化学
纳米技术纳米技术

背景情况:

合成具有控制大小和全表面曝光的亚纳米双金属集群 (SBC) 是一个挑战.
为了达到高的催化活性和稳定性,需要克服这些合成障碍.

研究的目的:

开发一种简单的策略来合成完全暴露的-的亚纳米双金属集群 (PtW SBC).
为了研究PtW SBCs在添加碳上的电催化性能,用于演化反应.

主要方法:

使用了聚离子 ([H3PtW6O24]5-) 和正电荷的金属有机框架 (MOF) 之间的静电相互作用.
用于合成PtW/NC.的采用了球形N-化碳支器.
进行了电化学测量和理论计算,以评估催化活性和稳定性.

主要成果:

完全暴露的PtW SBCs平均大小为0.81nm,在N-化碳 (PtW/NC) 上成功合成.
PtW/NC在性演化反应中表现出优异的电催化活性,超低超电位在10 mA cm-2.2时为4 mV.
该材料表现出了显著的稳定性 (>140小时),Pt质量活性是商业Pt/C的34倍.

结论:

Pt和W之间的协同效应有助于优越的催化性能.
开发的合成方法具有多功能性,适用于其他MOF和多孔材料.
这项工作为设计先进的电催化剂提供了一个有前途的途径.