MEMBRANE STRUCTURE AND METHOD OF MAKING

摘要

A membrane structure 10 is provided. The membrane structure includes a first layer 12 having a plurality of interconnected pores 14; and a second layer 1 6 disposed on the first layer. The second layer has a plurality of unconnected pores 18. Each of the unconnected pores is in fluid communication with at least one of the interconnected pores of the first layer. A method of making a membrane structure is provided. The method includes the steps of providing a first layer having a plurality of interconnected pores; and disposing a seco nd layer on the first layer. Disposing a second layer includes depositing a conducting layer on the first layer; and anodizing the conducting layer to convert the conducting layer into a porous layer.