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无形的-浸的-化碳封装纳米链增强了长时间的电化学水分裂

Murugan Vijayarangan¹, Muthukumaran Sangamithirai¹, Venkatachalam Ashok¹

¹Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamil Nadu 608 002, India.

ACS applied materials & interfaces

|June 27, 2024

概括

开发无形-化-化碳纳米粒子 (Co@NC-NPs) 为电化学水分裂 (EWS) 和太阳能电池应用提供了高效,稳定和非高尚的催化剂.

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:

电化学分水 (EWS) 对于生产 (H) 作为化石燃料的清洁替代品至关重要.
开发高效的,非贵金属催化剂用于EWS是商业可行性的关键研究领域.
无形催化剂具有独特的结构灵活性和缺陷部位,可以增强催化活性.

研究的目的:

设计和合成无形的为的化碳纳米粒子 (Co@NC-NPs) 作为双功能电催化剂.
评估Co@NC-NPs在电化学水分和太阳能电池应用中的性能.
调查无形化策略在增强催化活性和稳定性的作用.

主要方法:

无形的为的化碳纳米粒子 (Co@NC-NP) 的合成.
电化学表征,包括对HER和OER的超电位和Tafel斜率测量.
使用FE-SEM,HR-TEM,EDX和元素映射进行形态和结构分析.
在全电池水电解仪和太阳能电池配置中进行测试.

主要成果:

协同NC-NP对演变反应 (HER: 142 mV/80 mV dec-1) 和氧演变反应 (OER: 250 mV/72 mV dec-1) 均表现出较低的超电位和Tafel斜率.
在1.0 M KOH中达到10 mA cm-2的电流密度,并在广泛的pH范围内的全电池中以1.60 V @ 10 mA cm-2运行.
在H2和O2演变的太阳能电池应用中证明了100小时的出色稳定性和高效率.

结论:

无形Co@NC-NPs作为一种高效,稳定和具有成本效益的双功能电催化剂,用于电化学水分.
形态化策略,结构灵活性和缺陷显著提高了活性位点和电催化稳定性.
这种无形催化剂对EWS和太阳能电池等可再生能源技术的未来进步非常有前途.

关键词:

同@NC-NPs的合作伙伴变形无形化变形无形化这是一个双功能双功能.氧化转化过程中的氧化转化.太阳能电池是一个太阳能电池.结构灵活性结构灵活性水的分裂是水的分裂.

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