文献类型：期刊文献

中文题名：钯以及钯-银/陶瓷复合膜的制备与表征

英文题名：Preparation and Characterization of Pd or Pd-Ag/Ceramic Composite Membranes

作者：郭杨龙[1];卢冠忠[1];陈荣[2];汪仁[1];陈庆龄[3];许中强[3]

机构：[1]华东理工大学工业催化研究所,上海200237;[2]华东理工大学科技信息研究所,上海200237;[3]上海石油化工研究院,上海201208

年份：1999

卷号：13

期号：6

起止页码：407

中文期刊名：分子催化

外文期刊名：Journal of Molecular Catalysis(China)

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家教育部博士点专项基金!9525101

语种：中文

中文关键词：化学镀;工艺;钯;银;陶瓷;复合膜;氢透速率;电镀

外文关键词：Improved electroless plating; Pd-Ag/ceramic composite membrane；Hydrogen permeation rate

摘要：对用改进的化学镀新工艺制备的钯以及钯-银／陶瓷复合膜进行了表征．结果表明，在623～773K温度范围内，这两种复合膜对H2／N2和H2／Ar的分离系数接近无穷大；氢气透过此复合膜服从Fick第一定律，氢气的体相扩散为速率控制步骤；其氢气渗透系数与温度成较好的Arrhenius线性关系，氢气透过钯复合膜和钯-银复合膜的表观活化能分别为10．874、8．216kJ／mol，Q值分别为1．62×10-7exp和1.02×10-7expmol·m·s－1·m－2·Pa-0.5;
Pd or Pd-Ag/ceramic composite membranes prepared by the improved electroless plating were characterized. Experimental results show that in the temperature range of 623~773 K only hydrogen permeates through the composite membranes, which obeys the Fick's first law, and diffusion of hydrogen through the bulk of the plated Pd and Pd-Ag film is the rate-determining step.The Arrhenius-type plot of the hydrogen permeation coefficient against (1/ T) is a straight line, from which the apparent activation energies of hydrogen permeation through the composite membranes of Pd or Pd-Ag /ceramic are 10. 874 and 8.21610874kJ/mol, and the hydrogen permeation coefficients (Q ) are and mol·m·s-1·m-2·Pa-0.5, respectively. Pd-Ag/ceramic composite membrane exhibits higher hydrogen flux than the literature data.