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主机-客户结构通过POM@TM-BDC复合材料实现电催化演变性能

Binghe Yang¹, Lige Gong¹, Hongtao Cui¹

¹School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150080, China.

Langmuir : the ACS journal of surfaces and colloids

|December 20, 2024

概括

为进化反应 (HER) 开发经济的电催化剂至关重要. 这项研究引入了新的TM-BDC复合材料,使用地球上丰富的材料证明了优秀的HER活性和稳定性.

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:

开发高效和成本效益的电催化剂用于演化反应 (HER) 对于可持续能源技术至关重要.
地球上丰富的非贵金属基催化剂非常受欢迎,以取代昂贵的贵金属.
现有的电催化剂经常面临稳定性和活性方面的挑战.

研究的目的:

合成和描述新型复合电催化剂,以提高 HER 的性能.
为了研究聚氧金属客体和金属有机框架主体之间的协同效应.
评估开发材料的催化活性,效率和长期稳定性.

主要方法:

{P2W18}@TM-BDC (TM = Ni,Co,Fe) 复合材料的合成.
使用线性扫描电压测量 (LSV) 和电化学阻抗光谱 (EIS) 等技术进行表征.
通过超电位和Tafel斜率测量评估演变反应 (HER) 活动.
在24小时内评估催化稳定性.

主要成果:

合成的{P2W18}@TM-BDC复合材料显示出出色的HER活性.
{P2W18}@Ni-BDC表现出 198 mV 的低超电位和 104 mV/dec 的 Tafel 斜率.
这三种复合材料都表现出了显著的稳定性,在24小时内保持了性能,LSV和EIS曲线一致.

结论:

{P2W18}@TM-BDC复合材料是高性能电催化剂开发的有希望的战略.
聚氧甲酸盐客体和多孔金属有机框架主体的组合为地球丰富的催化剂设计提供了一个可行的途径.
这项工作扩大了非贵金属复合材料在电催化中的应用范围.

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