在碳布上生长的微量Ir装饰的NiFe化物作为氧化物进化反应的成本有效的电催化剂
Xue Chen1, Jiawei Xia1, Yuxuan Tong1
1Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou, Jiangsu Province, 213164, China.
Chemistry (Weinheim an der Bergstrasse, Germany)
|October 11, 2024
概括
开发具有成本效益的电催化剂对于高效的水电解是至关重要的. 这项研究在碳布上呈现了一种新装饰的-铁化催化剂,显示出出色的氧化演化反应活性和耐用性,用于储能应用.
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
- 能源转化和储存 能源转化和储存
背景情况:
- 具有成本效益的电催化剂对于水电解中的高效氧演化反应 (OER) 是必不可少的.
- 在能量转换技术中,平衡催化效率和成本是一个关键的挑战.
研究的目的:
- 为氧化演化反应 (OER) 开发一种高度活性和耐用的电催化剂.
- 为了研究与装饰的铁化物在性OER的碳布上的性能.
主要方法:
- 用一种简单的湿化学方法,然后用低温化来合成催化剂.
- 催化剂,Ir2-NiFePx/CC,是通过在碳布上装饰NiFe化物与微量化物种来制备的.
- 使用性OER技术评估电化学性能.
主要成果:
- 最优的电催化剂,Ir2-NiFePx/CC,在性OER的10 mA cm−2时显示出190 mV的低超电位.
- 催化剂表现出极好的长期耐用性,持续超过90小时.
- 增强的性能归因于结构演变,高价值物种 (Ir4+) 和强大的组件连接性.
结论:
- 开发的Ir装饰的NiFe化物催化剂为高效的OER提供了一个有希望的,具有成本效益的解决方案.
- 催化剂的优越活性和耐用性突出显示了其在水电解和能源储存方面的实际应用潜力.
- 低负荷 (约1.7%重量%) 进一步强调了它的成本效益.
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