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以碳材料为导向的纳米粒子作为进化反应的高效电催化剂

Heng Ke¹, Jixiang Zhang¹, Wenqi Luo¹

¹New Energy Materials and Devices Research Team College of New Energy, Jingchu University of Technology, Jingmen, China. khjuct@126.com.

Physical chemistry chemical physics : PCCP

|December 22, 2025

概括

研究人员为进化反应 (HER) 开发了高效的非贵金属电催化剂. 碳 (Ni/C) 上的纳米粒子表现出卓越的性能和稳定性,为能源应用提供了可持续的替代方案.

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:

开发高效的非贵金属电催化剂对于应对能源和环境挑战至关重要.
演化反应 (HER) 是清洁生产的关键过程.

研究的目的:

为了合成和评估纳米颗粒在碳 (Ni/C) 作为非贵金属的电催化剂HER.
研究Ni/C纳米结构的结构优势,以提高催化活性和稳定性.

主要方法:

使用简单的一步热处理来合成Ni/C电催化剂.
在性溶液中评估了电催化HER性能,测量了超电位和Tafel斜率.
进行了长期稳定性测试,以评估催化剂的耐用性.

主要成果:

合成的Ni/C-0.8材料显示出优异的电催化HER性能.
在 -10 mA cm−2 时实现了 -132 mV 的超电位,并实现了 117 mV dec−1 的 Tafel 斜率.
在长时间运行时,Ni/C-0.8催化剂表现出了显著的稳定性.

结论:

/碳的纳米结构促进了质量转移,暴露了活性部位,并促进了H2气体的释放,从而提高了HER的性能.
这项工作提出了一个有前途的策略,用于为HER设计具有成本效益和稳定的非贵金属电催化剂.
开发的Ni/C电催化剂为清洁能源应用提供了贵金属催化剂的可行替代方案.

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