在AEM水电解剂中工程化NiCo2O4的电化学性能:直接增长与喷涂阳极
Ataollah Niyati1, Arianna Moranda1, Sebastiano Bellani2
1Department of Civil, Chemical and Environmental Engineering (DICCA), Università di Genova, Via Opera Pia 15, 16145 Genoa, Italy.
概括
无粘合剂酸 (NiCo2O4) 阳极在和离子交换膜 (AEM) 水电解方面表现出色. 直接生长的电极提供无集成和提高导电性,以高效生产气.
科学领域:
- 材料科学
- 电化学
- 能源转换
背景情况:
- 水的电解对于可持续的生产至关重要.
- 开发高效和稳定的电催化剂是电解技术的关键.
- 酸 (NiCo2O4) 是氧化演化反应 (OER) 阳极的一个有前途的材料.
研究的目的:
- 合成和评估用于水电解的NiCo2O4阳极.
- 将无粘合剂直接生长的电极与常规喷涂电极进行比较.
- 在和离子交换膜 (AEM) 电解配置中评估性能.
主要方法:
- 通过尿素介导的热方法在Ni上合成NiCo2O4进行直接生长.
- 无粘合剂电极和喷涂电极的制造
- 在性和AEM水电解电池中进行电化学性能测试.
主要成果:
- 直接生长的无粘合剂NiCo2O4阳极在AEM水电解中表现出显著的活性和稳定性 (1.90V @ 1A cm-2).
- 这些电极在干性阴极模式下显示了催化剂层和膜之间的无相互作用.
- 无粘合剂的NiCo2O4阳极在电解中也表现出高稳定性和性能 (1.78 V @ 1 A cm-2).
结论:
- 通过直接生长合成的无粘合剂NiCo2O4阳极对于AEM和水电解都非常有效.
- 增强的导电性和降低的电荷转移阻力有助于优越的电化学性能.
- 直接生长的电极为水电解中高效和稳定的阳极开发提供了有希望的途径.
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