在使用Zn-酸电池的CoO/CuO纳米阵列上,电催化酸转化为氨
Shanshan Chen1, Gaocan Qi2, Ruilian Yin3
1Institute for New Energy Materials & Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
Nanoscale
|November 28, 2023
概括
这项研究引入了一种用于酸电池的新型CoO/CuO纳米阵列催化剂. 这种催化剂有效地将酸盐转化为氨 (NH3),并以高性能产生电力.
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
- 催化剂是一种催化剂.
背景情况:
- 酸 (Zn-NO3-) 电池与氨 (NH3) 生产一起提供环保的发电.
- 酸盐转化为氨是一种具有显著动力障碍的8电子过程,需要先进的催化剂.
研究的目的:
- 开发一种高性能电催化剂,以有效地将酸盐减少为氨.
- 研究Zn-NO3-电池中新型异构结构催化剂的催化活性和能量生成能力.
主要方法:
- 在铜泡 (CoO/CuO-NA/CF) 上制造异构的氧化物/铜氧化物纳米阵列.
- 酸盐转化为氨的催化剂的电化学评估,包括产量和法拉第效率测量.
- 将催化剂集成到Zn-NO3电池中,以评估其在设备设置中的性能.
主要成果:
- CoO/CuO-NA/CF催化剂的最大NH3产量为296.9μmolh-1cm-2和法拉第效率 (FE) 为92.9%在-0.2V与RHE.相比.
- 使用这种催化剂的Zn-NO3-电池表现出高NH3产率60.3μmolh-1cm-2,FE NH3的82.0%,功率密度为4.3mWcm-2.
- 不同结构的催化剂在低电位下促进了高效的酸盐降解.
结论:
- 开发的CoO/CuO-NA/CF催化剂对于从酸盐中节能生产氨非常有效.
- 这项工作为设计用于同时发电和化学生产的异构结构催化剂提出了一个有前途的策略.
- 这些发现为Zn-NO3-电池在可持续氨合成中的实际应用铺平了道路.
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