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在质子交换膜燃料电池中用于316SS双极板的功能化改性Ti₄O₇聚烯涂层

Ting Zhao¹, Zibin Chen¹, Xiaoqi Yi¹

¹Guangxi Key Laboratory of Electrochemical Energy Materials, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.

|September 28, 2024

概括

在316L不钢上采用新的PANI/PDA-Ti4O7复合涂层,可提供卓越的长期耐腐蚀性. 这种先进的涂层在恶劣的酸性环境中表现出增强的稳定性.

科学领域:

材料科学材料科学材料科学
腐蚀工程腐蚀工程
电化学电化学电化学

背景情况:

316L不钢被广泛使用,但容易腐蚀.
开发保护性涂层对于延长材料寿命至关重要.
聚氨酸 (PANI) 和多多巴胺 (PDA) 改性氧化 (Ti4O7) 具有潜在的抗腐蚀性.

研究的目的:

在316L不钢上准备和评估一种新的PANI/PDA-Ti4O7复合涂层.
评估复合材料涂层在模拟攻击性环境中的长期耐腐蚀性.

主要方法:

使用恒流沉积技术,在316L.上制造了PANI/PDA-Ti4O7涂层.
进行了电化学测量,包括开放电路电位和电化学阻抗光谱 (EIS).
在1M H2SO4 + 2ppm HF中进行了长期浸泡试验.

主要成果:

与裸体316L相比,PANI/PDA-Ti4O7复合涂层表现出更积极的开放电路潜力 (365 mV Ag/AgCl).
该涂层在200个小时的浸泡中显示出高稳定的腐蚀潜力.
较低的电荷转移电阻 (Rf) 值显示了更好的防腐蚀保护.

结论:

PANI/PDA-Ti4O7复合涂层为316L不钢提供了卓越的长期耐腐蚀性.
用PDA对Ti4O7的修改和随后的复合物形成增强了保护能力.
这种涂层对于需要优越的腐蚀性能的应用来说是一个有前途的解决方案.

关键词:

帕尼·帕尼 (PANI PANI) 是一个名字.在Ti4O7中,Ti4O7为Ti4O7.涂层涂层是一种涂层.腐蚀腐蚀是一种腐蚀.质子交换膜燃料电池的燃料电池是具有质子交换的.

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