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通过声波化,用于离子交换膜电解剂的高性能电催化剂

Arpit Thomas^1,2, Aakash Narayanan¹, Sriram Madhavan Pillai¹

¹Department of Mechanical Engineering, Shiv Nadar Institution of Eminence, Deemed to be University, Gautam Buddha Nagar, Uttar Pradesh 201310, India.

ACS applied materials & interfaces

|March 10, 2025

概括

声波化辅助电沉积创造了强大的NiFe和NiMn氧化催化剂,通过电化学水分裂有效地产生绿色,在高电流密度下显示出极好的耐用性.

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
可持续能源可持续能源

背景情况:

电化学分水是绿色生产的关键.
在高电流密度下催化剂的稳定性至关重要,但具有挑战性.
恶化和剥离极限催化剂性能.

研究的目的:

为氧化演化反应 (OER) 和演化反应 (HER) 开发高效和强大的电催化剂.
为了研究声学化辅助电位沉积对催化剂结构和性能的影响.
评估合成催化剂的商业可行性和长期稳定性.

主要方法:

声波化辅助的电子沉积被用于合成NiFe和NiMn氧化催化剂.
催化剂结构的表征,包括纳米尺度的统一性,无形化和氧气空缺.
在高电流密度 (高达1000 mA/cm2) 下对OER和HER进行性能测试.
在2.5×2.5厘米2的离子交换膜 (AEM) 电解器堆中进行长期稳定性测试.

主要成果:

合成方法产生了具有氧空缺的统一纳米结构.
催化剂显示出较低的超电位:OER为285mV,HER为189mV在1000mA/cm2时.
一个电池配置在1.76V时达到1A/cm2,在24小时内几乎可以忽略的恶化.
一个AEM堆证明了高耐用性,在100到1000mA/cm2的电流密度下运行100小时.

结论:

声波化辅助电解沉积是一种生产高性能,强大的OER和HER电催化剂的有效方法.
合成的NiFe和NiMn氧化具有很好的活性和稳定性,可用于大规模的绿色生产.
催化剂在水分工业应用方面显示出重要的商业潜力.

关键词:

声学化声学化变形无形化变形无形化电催化剂是一种电催化剂.绿色的气是绿色的气.高应变变形的高张力变形有空缺的氧气位

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