排序方式: 共有74条查询结果,搜索用时 296 毫秒
61.
固体氧化物燃料电池的研究进展 总被引:1,自引:0,他引:1
文章介绍了几种主要燃料电池的发展和研究现状、固体氧化物燃料电池(SOFC)的工作原理和特点,综述了SOFC的主要组件(阴极、阳极、电解质材料)制备方法及其进展,对SOFC在能源开发利用与市场化的前景进行了展望。 相似文献
62.
李森兰 《洛阳师范学院学报》2002,21(2):50-52
通常认为 ,弱电解质溶液无限稀时的摩尔电导Λ0 不能直接测定 ,它只能通过相关强电解质溶液无限稀时的摩尔电导及离子独立移动定律计算得出 .事实上 ,通过弱电解质溶液的电导率测定 ,不仅可以确定弱电解质的电离平衡常数 ,而且可以确定弱电解质无限稀时的摩尔电导 .与此同时 ,也发现了弱电解质溶液的浓度与其电导率之间的关系方程 相似文献
63.
李国屏 《宁波职业技术学院学报》2005,9(2):25-27
介绍了PLC可编程控制器的结构和工作原理及优点,说明PLC在工业生产中的广泛应用,可实现生产的集中控制和管理,降低工人劳动强度,改善劳动条件,为提高工业生产的可靠性,提供了有力保障。 相似文献
64.
16Mn钢在含H2S的薄层液膜下的缓蚀研究 总被引:1,自引:0,他引:1
用极化曲线和交流阻抗技术研究了硫脲和溴化十六烷基毗啶在复配前后对含H2S薄层液膜下的16Mn钢的缓蚀行为,得到了一些重要结论,并对其进行解释和讨论。 相似文献
65.
在293K-313K温度范围内测定了ErCl3在DMF溶剂中的电导率,求得ErCl3的摩尔电导率A值,并作图外推求得ErCl,在DMF溶剂中的无限稀释摩尔电导率λ0值,讨论了ErCl3的无限稀释摩尔电导率与温度的关系。 相似文献
66.
在293K~313K温度范围内测定了Er(ClO4)3在DMF溶剂中的电导率,根据λ=(K液-K剂)×10-3/c公式求得Er(ClO4)3的摩尔电导率λ值,应用Kohlraush经验规则:λ=λ0(1-βc),使用Origin软件进行线性拟合,作图外推求得Er(ClO4)3在DMF溶剂中的无限稀释摩尔电导率λ0值,讨论了Er(ClO4)3在DMF溶剂中的无限稀释摩尔电导率与温度的关系 相似文献
67.
综述了阻燃添加剂在锂离子电池有机电解液的应用和研究现状,探讨了阻燃添加剂对有机电解液的阻燃机制,比较了磷系阻燃添加剂、卤代阻燃添加剂和复合阻燃添加剂的种类、结构特征、阻燃效果以及对电池宏观电化学性能的影响。 相似文献
68.
保持熔融碳跋盐燃料电池电解质基板良好的吸附电解质的能力对延长电池的寿命相当重要,需要对电解质基板材料NAlO2在电池环境下的稳定性进行深入的研究。本文采用浸入法来模拟不同条件下的MCFC环境,研究了温度、反应气氛等因素对电解质基板材料稳定性的影响,发现在高温和二氧化碳分压较低的条件下颗粒长大明显,井对影响的机理进行了探讨。 相似文献
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70.
Zhi Huang Zhao-bo Chen Nan-qi Ren Dong-xue Hu Dong-huan Zheng Zhen-peng Zhang 《浙江大学学报(A卷英文版)》2009,10(11):1642-1650
To improve the working and living environment of submarine crews, an integrated system of CO2 removal and O2 regeneration was designed to work under experimental conditions for 50 people in a submarine cabin during prolonged voyages. The integrated system comprises a solid amine water desorption (SAWD) unit for CO2 collection and concentration, a Sabatier reactor for CO2 reduction and a solid polymer electrolyte (SPE) unit for O2 regeneration by electrolysis. The performances of the SAWD-Sabatier-SPE integrated system were investigated. The experimental results from the SAWD unit showed that the average CO2 concentration in the CO2 storage tank was more than 96% and the outlet CO2 concentration was nearly zero in the first 45 min, and less than 1/10 of inlet CO2 after 60 min when input CO2 was 0.5% (1000 L). About 950 L of CO2 was recovered with a recovery rate of 92%-97%. The output CO2 concentration was less than 0.2%, which showed that the adsorption-desorption performance of this unit was excellent. In the CO2 reduction unit we investigated mainly the start-up and reaction performance of the Sabatier reactor. The start-up time of the Sabatier reactor was 6, 8 and 10 rain when the start-up temperature was 187.3, 179.5 and 168 ℃, respectively. The product water was colorless, transparent, and had a pH of 6.9-7.5, and an electrical conductivity of 80μs/cm. The sum of the concentration of metal ions (Ru^3+, Al^3+, Pb^2+) was 0.028% and that of nonmetal ions (Cl^-, SO4^2-) was 0.05%. In the O2 regeneration unit, the O2 generation rate was 0.48 m^3/d and the quantity was 2400 L, sufficient to meet the submariners' basic oxygen demands. These results may be useful as a basis for establishing CO2-1evel limits and O2 regeneration systems in submarines or similar enclosed compartments during prolonged voyages. 相似文献