|
|
|
Fabrication and performance of PEN SOFCs with proton-conducting electrolyte |
| ZHONG Li1, LUO Jingli2, Karl Chuang2 |
| 1.College of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510640, China; 2.Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, T6G 2G6, Canada |
|
|
|
|
Abstract A positive-electrolyte-negative (PEN) assembly solid oxide fuel cell (SOFC) with a thin electrolyte film for intermediate temperature operation was fabricated. Instead of the traditional screen-printing method, both anode and cathode catalysts were pressed simultaneously and formed with the fabrication of nano-composite electrolyte by press method. This design offered some advantageous configurations that diminished ohmic resistance between electrolyte and electrodes. It also increased the proton-conducting rate and improved the performance of SOFCs due to the reduction of membrane thickness and good contact between electrolyte and electrodes. The fabricated PEN cell generated electricity between 600?C and 680?C using H2S as fuel feed and air as oxidant. Maximum power densities 40 mW " cm-2 and 130 mW " cm-2 for the PEN configuration with a Mo-Ni-S-based composite anode, nano-composite electrolyte (Li2SO4+Al2O3) film and a NiO-based composite cathode were achieved at 600?C and 680?C, respectively.
|
|
Issue Date: 05 March 2007
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
