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超快速电脉冲合成高活性电催化剂,用于超越工业水平的气电池

Taoli Jiang¹, Zaichun Liu¹, Yuan Yuan¹

¹Department of Applied Chemistry, School of Chemistry and Materials Science, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, China.

Advanced materials (Deerfield Beach, Fla.)

|May 30, 2023

概括

具有成本效益的-合金纳米粒子 (RuNi/C) 显著提高了气电池的性能. 这些先进的催化剂能够有效地储存各种气候的能量,从而降低电网规模应用的成本.

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
储能储能储能储能储能储能

背景情况:

水性气 (H2) 电池为大规模的能源存储提供了高可靠性和寿命.
昂贵的催化剂限制了H2电池的应用,原因是低演变和氧化反应 (HER/HOR) 活性.

研究的目的:

为- (Ni/H2) 电池开发具有成本效益和高活性的电催化剂.
展示这些催化剂在实际,电网规模储能方面的潜力.

主要方法:

通过超快的电脉冲方法合成了超细的-合金纳米粒子 (RuNi/C).
评估了Ni/H2电池中RuNi/C的电催化活性 (HER/HOR) 和性能.
在不同温度下评估电池性能,并确定能量密度和成本.

主要成果:

RuNi/C催化剂表现出高的HOR质量活性 (2.34A mg-1) 和低的HER超电位 (19.5 mV在10 mA cm-2),而Pt/C的成本仅为一小部分.
带有RuNi/C的Ni/H2电池在广泛的温度范围 (-25至+50°C) 中有效运行,具有出色的耐用性.
为Ni/H2电池堆实现了高能量密度 (183Wh kg-1) 和低估计成本 (~49美元kWh-1).

结论:

超快速的电脉冲合成产生高度活跃和具有成本效益的RuNi/C电催化剂用于Ni/H2电池.
这些先进的催化剂使Ni/H2电池在任何气候条件下都能有效且持久地运行.
开发的Ni/H2电池技术为实际的电网规模储能提供了一个有希望的解决方案.

关键词:

在HER/HOR催化剂中.在所有气候条件下表现.电脉冲的合成电脉冲的合成电网规模的储能系统可以储能.气电池是指气电池的电池.长寿的人生长寿的人生

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