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中等性的金属硫化物纳米颗粒的双重协同效应,使得海水整体分裂效率高

Hao Wu¹, Fengqi Li¹, Sirui Huang²

¹National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, PR China.

Journal of colloid and interface science

|November 22, 2024

概括

我们开发了一种新的电极材料,Fe_1.2(CoNi) _1.8S₃Se₃中金属硫二烯化物 (MESSe),用于高效的整体水分裂 (OWS). 这种耐用电极在海水电解质中表现出色,为先进的电化学能源系统铺平了道路.

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
可再生能源可再生能源是可再生能源.

背景情况:

开发高效且耐用的电极,用于海水中的整体水分裂 (OWS),对于可持续的生产至关重要.
现有的电极材料在恶劣的盐水环境中往往缺乏稳定性和活性.

研究的目的:

合成和评估新的中金属硫二烯化物 (MESSe) 纳米颗粒作为海水中的OWS的先进电极材料.
为了研究Fe_1.2(CoNi)_1.8S₃Se₃MESSe电极的电催化性能和耐用性.

主要方法:

合成Fe_1.2(CoNi)_1.8S₃Se₃中金属硫二化物 (MESSe) 纳米颗粒.
在性模拟海水中对演变反应 (HER) 和氧演变反应 (OER) 的电催化性能测试.
在各种基于海水的电解质中,在高电流密度下进行耐用性测试.

主要成果:

Fe_1.2(CoNi) _1.8S₃Se₃ MESSe电极表现出极好的电催化活性,超电位低 (η100: HER 156 mV,OER 262 mV).
电极在性模拟海水中以1.77V的低电池电压实现了OWS电流密度为100mA cm-2 .
在性模拟海水,性海水和天然海水中,在高电流密度下观察到特殊的长期稳定性.

结论:

优化的电子结构Fe_1.2(CoNi) _1.8S₃Se₃ MESSe增强了HER和OER的反应动力学.
这种新的MESSe材料在实际的海水条件下显示出对高效和持久的整体水分的显著前景.
这些发现为在极端条件下运行的电化学能源系统开发先进的硫二化物提供了基础.

关键词:

电子结构电子结构的演化反应反应.中等的金属硫二化物纳米粒子.总体而言,海水分裂.氧的演化反应反应的反应.

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