- 學位論文
晶片型直接甲醇燃料電池之研究：流場、觸媒與奈米碳管之整合設計
Study of Chip-DMFC：An integrated design of flow field, catalyst, and CNTs
摘要
本論文主要探討之晶片型直接甲醇燃料電池(Chip-DMFC)，是以鈦金屬薄膜披覆之矽晶片(Ti/Si)作為雙極板，並在此基板上成長含氮之導電奈米碳管，使雙極板具有良好的導電性，再搭配含有奈米碳管成長於其上的碳布做為承載催化奈米顆粒之反應層的電極，可以承載更多的白金顆粒，以增加燃料反應面積，提升電池之電流密度。 而在電池組裝階段分別以四種不同的流道雙極板做為搭配，測量在不同的甲醇溫度條件下，所呈現之電流密度。另一方面，由於陽極Pt觸媒在甲醇反應時，相當容易因中間產物CO的產生而導致Pt觸媒毒化，因此本研究以Pt/Ru/Ni做為觸媒，以增加陽極觸媒的活性，降低CO毒化的程度。並以循環伏安法量測其電化學活性，藉以了解增加第三元金屬對Pt觸媒，以及對燃料電池效能之影響。
並列摘要
This thesis concentrates on chip direct methanol fuel cell（Chip-DMFC）as a research topic. We used Ti/Si-based bipolar plates. In order to increase electric conductivity, we direct growth carbon nanatubes（CNTs）on it surface, which the CNTs growth contain nitrogen. Beside, we also growth CNTs on carbon cloth（CC）to be the electro, it will increase reaction area and power density with the cell. For the cells seal, we used four different flow field bipolar plates, to measure the power density with different methanol temperature. Besides, because of anode Pt catalyst easy to be poison by CO, when the methanol reaction. We used PtRuNi be the anode catalyst, to increase anode catalyst activity and decrease the order of CO poison. We used CV to measure the catalyst electro activity. It will analysis the good effect for Pt catalyst with ternary alloy catalyst.