National University of Singapore

How Yong Ng

John Wang

Jun Ding

Olivier Patrick Lefebvre

Wei Duan

Wai Keong Ooi

Tze Chiang Albert Ng

Zhiyang Lyu

There is provided an inorganic hierarchical porous membrane comprising at least two layers, wherein each layer of the at least two layers comprises a different average pore size as compared to another layer of the at least two layers, and wherein the membrane comprises a patterned surface. There is also provided a method of forming the membrane.

Inorganic porous membrane

A two-layered osmosis membrane contains a support layer and a rejection layer. The support layer, in which a mesh is embedded, is made of a phase separation polymer and has a thickness of 50 to 200 &#x3bc;m. The rejection layer, which adheres to the support layer, is made of a thin film composite polymer and has a thickness of 0.05 to 3 &#x3bc;m. The mesh, which is embedded in the support layer, has an open area of 30 to 70%, a mesh size of 60-300 mesh, and a thickness of 45-150 &#x3bc;m. Also disclosed is a method of making the above described membrane.

Thin film composite osmosis membranes

A cathode for a fuel cell comprising a catalyst layer; a backing layer mounted to an aperture in a fuel chamber of said fuel cell; 1) wherein said catalyst layer is mounted to the backing layer on a face opposed to the aperture, so as to be in fluid communication with atmospheric oxygen in the case of microbial fuel cell; and 2) wherein said catalyst layer is mounted to the backing layer on a face opposed to the aperture, so as to be in fluid communication with water in the case of microbial electrolysis cell.

Cathode design

Growing community of inventors

Singapore, Singapore

How Yong Ng