在蒸汽相聚合PEDOT电极上降低氧气的高速率
Bjorn Winther-Jensen1, Orawan Winther-Jensen, Maria Forsyth
1Australian Centre for Electromaterials Science, Monash University, Clayton, Victoria 3800, Australia. bjorn.winther-jensen@eng.monash.edu.au
概括
一个新型的多3,4-乙烯二氧化) (PEDOT) 空气电极为氧气减少提供了一种具有成本效益的,耐CO的替代品. 这种耐用电极在能源应用中表现出稳定的性能.
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
- 催化剂是一种催化剂.
背景情况:
- 空气电极对于燃料电池和金属/空气电池等能源设备至关重要.
- (Pt) 是一种高效的氧降解催化剂,但价格昂贵,稀缺,易被CO或聚合物去活化.
研究的目的:
- 开发和评估一种使用聚3,4-乙烯二氧化 (PEDOT) 作为氧降解催化剂的新型空气电极.
- 与传统的Pt电极相比,评估基于PEDOT的电极的稳定性,性能和CO耐受性.
主要方法:
- 用PEDOT涂层的多孔材料制造以作为空气电极.
- 测试电极的性能和稳定性超过1500小时的连续运行.
- 评估氧气转化率和CO敏感性.
主要成果:
- 用PEDOT涂层的电极证明了连续运行超过1500小时,没有性能降低.
- 氧气转化率与具有相似几何形状的Pt催化电极相当.
- 电极对一氧化碳 (CO) 没有敏感性,一氧化碳是Pt.的常见失活剂.
结论:
- PEDOT 作为空气电极的有效和稳定的氧气减少催化剂.
- 这种基于PEDOT的电极在能源应用中为金提供了一个有前途,成本高效和强大的替代品.
- 电极的二氧化碳耐受性和稳定性扩大了其在燃料电池和电池中的潜在应用.
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