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用于绿色H2生产的具有成本效益的双金属催化剂在阳离子交换膜水电解器中的生产
Sabrina Campagna Zignani1, Marta Fazio1, Mariarosaria Pascale1
1Institute of Advanced Technologies for Energy (ITAE) of the National Research Council (CNR), 98126 Messina, Italy.
本研究提出了一种简单,可扩展的方法,用于创建高效,低成本的电催化剂,用于离子交换膜水电解 (AEMWE). 这些催化剂显著提高了绿色的生产效率和稳定性,为更广泛的市场采用铺平了道路.
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:
- 通过水电解 (WE) 生产绿色对于脱碳和利用可再生能源至关重要.
- 离子交换膜水电解 (AEMWE) 为绿色提供了一个有希望的,具有成本效益的途径.
- 开发可扩展,低成本的电催化剂对于推进AEMWE技术至关重要.
研究的目的:
- 为基于纳米结构的NiCo和NiFe的电催化剂提出一种简单且可扩展的合成过程.
- 为了评估这些电催化剂在零间隙AEMWE全电池中的性能.
- 为了证明具有成本效益的绿色生产潜力.
主要方法:
- 合成基于NiCo和NiFe的氧化物,采用不同的Ni分子分数的sol-gel方法.
- 氧化物在不同温度 (400°C和800°C) 的化.
- 氧化物的降解以形成阴极电催化剂,然后在完整的AEMWE电池中进行电化学测试.
主要成果:
- 电催化剂的性能受到相纯度和晶体大小的显著影响,更细的颗粒产生更好的结果.
- 最好的膜电极组件在150小时的稳定性测试中以2.15V的电压达到1Acm-2.
- 开发的催化剂在初始和测试后,在切断电压下表现出低串联电阻和高电流密度.
结论:
- 已经证明了一种简单,可扩展的合成方法,用于高效和成本效益的AEMWE电催化剂.
- 优化纳米结构的基于NiCo和NiFe的催化剂提高了绿色的生产效率和耐用性.
- 这些发现支持AEMWE绿色技术的更广泛的市场透.
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