在工业电流密度下生产气的无形氧化物集成阳极电极具有超高的材料利用率
Lei Ding1, Kui Li1, Weitian Wang1
1Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, TN, 37996, USA.
Nano-micro letters
|May 24, 2024
概括
没有离子体的无形氧化物 (IrOx) 薄电极为质子交换膜电解器细胞 (PEMEC) 开发. 这些电极提供高效率和催化剂节省,加速可再生能源的发展.
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
- 可再生能源可再生能源是可再生能源.
背景情况:
- 质子交换膜电解器细胞 (PEMEC) 对于可再生能源至关重要.
- 开发具有成本效益和高度活性的阳极材料对于PEMEC商业化至关重要.
- 氧化 (IrOx) 是一个有前途的阳极材料,但它的效率和利用需要改进.
研究的目的:
- 开发用于PEMECs的新型无离子体无形氧化 (IrOx) 薄电极.
- 评估这些新电极的性能,效率和催化剂利用.
- 展示一个可扩展和具有成本效益的制造方法,用于IrOx阳极.
主要方法:
- 在室温下放置电极,以制造无离子体的无形IrOx薄电极.
- 整合了IrOx电极与Nafion 117膜.
- 使用开发的电极进行质子交换膜电解器细胞 (PEMEC) 的性能测试.
主要成果:
- 电极实现了高的电池效率 (约. 90%) 在超低负载 (0.075 mg cm-2).
- 与商业标准相比,实现了超过96%的催化剂节约和催化剂利用率增加了42倍.
- 与之前报告的阳极相比,证明了更高的性能和简化制造.
结论:
- 无离子体无形Irox电极为PEMEC提供了一个高度活跃,高效和具有成本效益的解决方案.
- 无形相的独特特性,Ir3+含量和表面氧化物组有助于提高性能.
- 这些电极显示出工业应用的巨大潜力,加速了PEMEC的商业化和可再生能源的发展.
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