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Carbon Nano-fiber Interlayer That Provides High Catalyst Utilization In Direct Methanol Fuel Cell

机译:在直接甲醇燃料电池中提供高催化剂利用率的碳纳米纤维中间层

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摘要

The introduction of a carbon nano-fiber (CNF) interlayer to the interface between the carbon paper and the catalyst layer was investigated for providing a highly active catalyst layer with PtRu nano-particles on it for the direct methanol fuel cell (DMFC) anode. A precipitation method was used for applying the CNF layer and the catalyst layer. The effects of the loadings of the CNF and the catalyst on the DMFC power generation were evaluated. The CNF interlayer covered the large openings of the carbon paper resulting in a dense and smooth surface. The PtRu black catalyst prepared on the surface of the CNF layer provided a higher power density of DMFC than that obtained by using carbon black, suggesting that the dense and crackless surface of the CNF layer reduced the catalyst loss that leaks into the crack and increases the active reaction sites on the anode surface.
机译:研究了在碳纸和催化剂层之间的界面上引入碳纳米纤维(CNF)中间层的方法,以在其上提供用于直接甲醇燃料电池(DMFC)阳极的具有PtRu纳米颗粒的高活性催化剂层。使用沉淀法来施加CNF层和催化剂层。评估了CNF和催化剂的负载量对DMFC发电的影响。 CNF中间层覆盖了复写纸的大开口,形成了致密而光滑的表面。在CNF层的表面上制备的PtRu黑色催化剂提供了比使用炭黑获得的DMFC更高的DMFC功率密度,这表明CNF层的致密且无裂纹的表面减少了泄漏到裂缝中的催化剂损失,并增加了CMFC层的密度。阳极表面上的活性反应位点。

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