用于燃料电池气体分离钯复合膜的制备与性能评价  

Preparation and performance evaluation of palladium composite membrane used for fuel cell gas separation

作　　者：卢成壮 张瑞云[1] 程健[1] 李昊 王保民[1] 杨冠军 黄华 LU Cheng-zhuang;ZHANG Rui-yun;CHENG Jian;LI Hao;WANG Bao-min;YANG Guan-jun;HUANG Hua(Huaneng Clean Energy Research Institute,State Key Laboratory for Coal based Clean Energy,Beijing 102209,China)

机构地区：[1]中国华能集团清洁能源技术研究院有限公司煤基清洁能源国家重点实验室,北京102209

出　　处：《应用化工》2020年第S02期53-56,共4页Applied Chemical Industry

基　　金：国家重点研发计划项目(2017YFB0601903-2)。

摘　　要：为了提高钯复合膜在实际应用中固定空间内的比表面积及钯膜透氢性能,对此,本文提出使用外表面平坦光滑且内部具有均匀径向孔道的陶瓷纤维管作为钯膜载体,制备了新型的具有高透氢性能的钯复合膜。在400℃、0.1 MPa下,透氢量达到6.2E-6 mol/m^(2).s.Pa。该陶瓷纤维管内部存在的径向均匀孔道可有效减小氢气渗透阻力,从而提高透氢性能。此外,陶瓷纤维管载体外表面粗糙度较小,易于钯膜制备。Palladium membrane has several advantages in hydrogen separation and purification,such as small size,quietness and compactness.Palladium membrane has a very significant application prospect in the direction of hydrogen production for fuel cells.In order to improve the specific surface area of the palladium composite membrane in the fixed space and the hydrogen permeability of the palladium membrane,this paper proposed to use a ceramic fiber tube with a smooth outer surface and a uniform radial channel inside as a palladium membrane carrier.A new type of palladium composite membrane with high hydrogen permeability was prepared.At 400℃and 0.1 MPa,the hydrogen permeability reached 6.2E-6 mol/m^(2).s.Pa.The radial and uniform pores inside the ceramic fiber tube can effectively reduce the hydrogen permeation resistance,thereby improve the hydrogen permeation performance.In addition,the ceramic fiber tube carrier has a small outer surface roughness and is easy to prepare for the palladium film.

关 键 词：陶瓷纤维 载体 钯复合膜 性能 

分 类 号：TM911.4[电气工程—电力电子与电力传动] TB383.2[一般工业技术—材料科学与工程]