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1
題名:Amorphous Nano-Crystalline (ANC) Materials for Fuel-cell Electrodes    
非奈晶(ANC)應用於燃料電池電極之探討
著者:F. F-M. Lee(李豐明) ;C. J. Yang(楊家儒) ;I. S. Chu(朱益新) ;W. H. Perng(彭文宏)
出版地區:台灣
出版城市:台北市
學科:自科綜合 ; 應科綜合
關鍵字:Nano-particles ; nano-dispersion ; fuel cells ; high surface area ; catalytic particles ; amorphous nano-crystalline (ANC) materials ; honeycomb structure ; half-cell device
刊名:Chinese Culture University Hwa Kang Journal of Engineering 
卷期:17期(2003.6)
頁碼:1-20
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

去(2 0 0 2 )年八月由聯合國主辦在南非約翰聶士堡召開的「世界永續發展高峰會議」再次呼籲快速發展乾淨能源代替石化燃料,無疑對全球關心能源與環保的研究者是鼓舞與勉勵。美國布希總統於今年初在國情咨文中大聲疾呼提議國會撥出1 5 0 億美元積極推動開發乾淨的氫氣燃料電、池。理論上, 以燃料電池供應乾淨能源是充滿應允的途徑。然而, 技術上仍然存在尚待解決的一些問題,其中尤其以電極材料之低效率、耐用度和高價格等最急待改善。 本文提出頗有希望的實驗結果,顯示將奈米級觸媒顆粒(如白金)散佈於多孔基材中並以導電塑膠(如Nafi o n)網膜固定的電極材料,果然可以發揮最高的表面效應, 也則奈米顆粒和三維分佈的雙重效果。本文也推薦使用所謂非奈晶材料(ANC)之微粒為電極材料的觸媒。非奈晶本身為非晶卻包含無數奈米級結晶顆粒的觸媒( 5 ~ 1 0%的白金) ,利用融旋冷卻方法,加上適當的熱處理和酸液浸蝕所獲得的薄材。 本文主要探討各種將微粒散佈於三維的氧化鋁蜂巢孔洞內的技術,並將散佈後的電極裝置於自製的半電池電化測試儀, 量測其電流一電壓(IV) 曲線。以ANC 微粒為觸媒的電極所輸出的電流,果然比灘鍍合金為電極的高20 倍之多。
While the world is still assessing the impact of the UN-sponsored World Summit on Sustainable Development held in Johan esburg in August of 2002, the world action of cutting down on fossil-fuel use by developing more clean energy remains steadfast. President Bush of the United States address ed in his State of Union in January of 2003 that a budget ofUS$15 billions will be allocated for the development of clean hydrogen fuel cellso In theory and research, the potential of fuel cells to provide for clean energy is highly promising. However, in technical aspect there exist several problems yet to be resolv ed. Among them, the efficiency, durability, and high cost of electrode materials for fuel cells remain to be improved. In this paper we present some promising results' in which nano-dispersion of catalytic particles are secured on a porous substrate with conductive polymer network. With such electrodes the catalytic particles can achieve a maximum surface area in both particl e size reduction and three-dimensional distribution. Another concern for fuel cell electrodes is the corrosion resistance of both catalytic particles and substrate mater ials. We employed Amorphous Nano-Crystalline (ANC) materials as the catalytic particles and alumna honeycomb structure with nano-size holes as the substrate in one of our tests. The ANC alloys containing multipl e metals including catalytic platinum of 5 to 10 atomic% were obtained by a melt spinning technique. The platinum particl es can be manipulated to nano-crystalline sizes by a proper thermal treatment followed by etching the amorphous matrix. The alumna substrate was prepared from anodic treatment of a pure aluminum sheet. We prepared several kinds of electrode materials with different kinds of dispersion techniques, and then tested them with a half-cell electrochemical device of our own design under various test conditions. Some results are outstandingly high in output and stable in reproducibility.




本卷期目次
Chinese Culture University Hwa Kang Journal of Engineering  17期 (2003.6)
Amorphous Nano-Crystalline (ANC) Materials for Fuel-cell Electrodes/ F. F-M. LeeC. J. YangI. S. ChuW. H. Perng
共晶蓄冷式儲能材料於低溫物流系統之研究/ 李友竹陳文智張鎮州陶惟翰
以電漿濺鍍技術製備電致色變薄膜及其性能之研究/ 陶惟翰田曜瑋楊正旭林永森
以電漿濺鍍技術製備太陽能選擇性吸收膜及其性能之研究/ 陶惟翰楊正旭林永森詹文皓唐震宸
Design of UART with RTL Based BIST/ Feng-Sheng ChuYu-Jung ChangJia-Chuan Lin
一種用於同調與非同調系統的網路可靠度演算法則/ 劉熙海張榮軒洪士傑林衍廷
The Learning And Ability of A Single-Layer Perceptron/ Che-Chi Weng
Crystal Structure, Magnetic and Magnetotransport Properties of Double Perovskites Sr2FeMO6(M=Mo, W)/ C. Y HuangT. S. ChanR. S. LiuG .Y Guo
管線管焊道延性測試與礦平測試之合理化分析/ 陳文璟
主動式車輛懸吊控制系統-使用基因模糊理論/ 盧書豪陳健福黃聰耀
具/不具橡膠成分之醋酸乙烯/乙烯發泡鞋墊材對衝擊緩震性能之影響分析/ 陳?仁
RSSR Mechanism with Constant Transmission Angle/ Wen-Yeuan Chung
不同蒸煮法對狼尾草脫除木質素反應動力之影響/ 王耿昭黃家祥
廢水凍結分離性能分析與節能之研究/ 黃昭銘陳文智陶惟翰楊大泰
 
   
 
   

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