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嵌入CuCo的碳作为有效的可充电乙醇/空气电池的双功能催化剂

Nan Li¹, Xiaoyu Ma¹, Shiqian Du²

¹College of Chemistry and Chemical Engineering, Institute of Interdisciplinary Studies, Hunan Normal University, Changsha 410081, China.

ACS applied materials & interfaces

|September 9, 2025

概括

研究人员通过用乙醇氧化反应 (EOR) 取代氧化演变反应 (OER) 来开发了一种新的乙醇/空气电池 (ZEAB). 与传统的空气电池 (ZAB) 相比,这种新系统显著提高了能源效率并降低了能源消耗.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
储能储能储能储能储能储能

背景情况:

传统的空气电池 (ZABs) 由于复杂的氧化演化反应 (OER) 而遭受缓慢的动力学和低能效.
乙醇氧化反应 (EOR) 提供了较低的热力学潜力,为提高电池性能提供了替代方案.

研究的目的:

开发和评估一个乙醇/空气电池 (ZEAB) 系统,以EOR取代OER.
合成和表征一种新的双金属催化剂,用于高效的EOR和氧降解反应 (ORR).

主要方法:

从金属有机前体中合成一个CuCo嵌入的添加碳催化剂 (CuCo-20%-1).
电化学表征和现场拉曼光谱学以确定催化活性位点.
密度函数理论 (DFT) 计算以阐明催化机制.

主要成果:

CuCo-20%-1催化剂在EOR和ORR方面表现出色,M-Nx位点和Cu-doped CoOOH被确定为活性物种.
采用ZEAB系统实现了63.4%的高能效.
与传统的ZAB相比,观察到能源消耗大幅减少32.7%.

结论:

在金属空气电池中用EOR取代OER,可以绕过动力限制并提高性能.
开发的双金属催化剂和ZEAB系统为下一代金属空气电池技术提供了一个有前途的框架.
本研究强调了一种提高先进电池系统实际应用的战略方法.

关键词:

双功能的催化剂.双金属的CuCuCu是什么乙醇氧化反应是乙醇的氧化反应.氧减少反应反应的氧减少反应.- 乙醇 / 空气电池电池

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