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Updated: Jul 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

异质的Co-Ni化物具有水解离和高效演变反应的活性位点

Nan Jiang¹, Jiayou Li², Bing Wang¹

¹Innovation Institute for Sustainable Maritime Architecture Research and Technology, Qingdao University of Technology, Qingdao 266033, China. jiangnan@qut.edu.cn.

Dalton transactions (Cambridge, England : 2003)

|January 5, 2024

概括

合成了高活性-化 (Co-Ni-P) 纳米复合物,以实现高效的电催化进化. 优化的Co_0.5Ni_0.5-P材料在性溶液中表现出色.

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
催化剂是一种催化剂.

背景情况:

过渡化物基材料为电催化进化提供了催化剂的有希望的替代品.
开发高活性和稳定的催化剂对于高效的生产至关重要.

研究的目的:

为了合成自支的异构结构-化物 (Co-Ni-P),具有不同的金属比率.
为了研究这些化物在性电解质中的演化反应 (HER) 性能.
通过实验和理论分析阐明结构-活动关系.

主要方法:

合成Co-Ni-P纳米复合材料的低温电沉积策略.
电催化测量以评估的演变性能 (超电位,电流密度).
用于电子结构分析的X射线光电子谱学 (XPS).
密度函数理论 (DFT) 计算用于机械洞察力.

主要成果:

优化Co_0.5Ni_0.5-P纳米复合材料表现出优越的HER活性,仅需要67mV和181mV才能达到分别10和100mA cm^-2.
在XPS分析中,在Co_0.5Ni_0.5-P.P.中发现了优化的电子结构和更好的导电性.
DFT计算表明,Co_0.5Ni_0.5-P异构结构通过降低水激活的能量屏障并优化吸附来促进HER的Volmer步骤.

结论:

合成的Co_0.5Ni_0.5-P异构结构显示出出色的电催化活性和稳定性,用于的进化.
增强的性能归因于优化的电子结构,改进的导电性和沃尔默工艺的有利反应动力学.
这些发现突显了Co-Ni-P材料作为高效的非贵金属催化剂的生产潜力.

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