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以不同PAN系炭纤维布制备燃料电池气体扩散层之研究 刘璟翰1,廖元楷1,柯泽豪1 (1.逢甲大学材料科学与工程学系,台湾,台中) 摘要:采用石墨化PAN系炭纤维布制备了高分子电解质燃料电池气体扩散层.通过电学实验,X-ray绕射与元素分析考察了所制气体扩散层的性能.结果表明:随热处理温度的升高,气体扩散层的电阻率降低,L.增加,d002减小.高温处理后的炭纤维布作为高分子电解质燃料电池气体扩散层显示了较高的电池效能. 关键词:燃料电池; 气体扩散层; 石墨化; Fuel cell; Gas diffusion layer; Graphitization; [全文内容正在添加中] ......
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fiber to Ti matrix. The interfacial reaction layer growth is controlled by diffusion and follows a role of parabolic rate, and the activation energy (Qk) and (k0) of SiC/TA1 are 252.163 kJ/mol and 7.34...]. As long as the interfacial reaction layer becomes thicker, its growth is controlled by diffusion, and Ti, Si and C atoms inter-diffuse through interfacial reaction layer. Since the initial TiCx isn’t......
reveal that the pyrocarbon coating can improve the properties of carbon paper used for electrode materials of fuel cell. Key words: fuel cell; gas diffusion layer; carbon fiber paper; chemical vapor... for electrocatalytic oxidation of methanol [J]. Electrochemistry Communications, 2007, 9: 2229-2234. [8] DU Chun-yu, WANG Bao-rong, CHENG Xin-qun. Hierarchy carbon paper for the gas diffusion layer......
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Preparation and properties of SiCN diffusion barrier layer for Cu interconnect in ULSI ZHOU Ji-cheng(周继承)1, SHI Zhi-jie(石之杰)2, ZHENG Xu-qiang(郑旭强)2 1. School of Energy Science and Engineering... of the barrier layer, and there should be other factors causing failing of SiCN film as dielectric diffusion barrier. 4 Conclusions 1) The SiCN thin-film surface is very smooth and compact......
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the diffusion of gas from a higher to a lower concentration under the driving force of concentration gradient. The concentration of the gas changes not only with the position but also with the development... J. Cent. South Univ. (2020) 27: 2017-2031 DOI: https://doi.org/10.1007/s11771-020-4427-6 Isothermal diffusion of water vapor in unsaturated soils based on Fick’s second law LIU Fei-fei(刘飞飞)1, MAO......
; (b) Open atomizer; (c) Double layer scanning atomizer In the present study, the effects of parameters on gas flow field were investigated and validated by water atomization experiments... point D, as shown in Fig.3(d). During operation of the double layer atomizer, viscous molten metal will clog the gas orifice easily when a little metal droplet is transported to negative pressure zone D......
dispersive spectrometry. It is found that the intermetallic compound layer is composed of Zr, Cu and Sn. The layer growth of the intermetallic compound is mainly controlled by a diffusion mechanism over... by the Arrhenius equation. Key words: bulk metallic glass; compound layer; kinetics; diffusion mechanism 1 Introduction Among many bonding techniques, soldering has become an important joining technology......