Professor, Associate Dean (Research), Faculty of Construction and Environment (FCE)
The Hong Kong Polytechnic University, Hong Kong, China
Senior Editor, Sustainable Energy Technologies and Assessments (Elsevier)
Senior Editor, e-Prime – Advances in Electrical Engineering, Electronics and Energy (Elsevier)
Associate Editor, International Journal of Energy Research (Wiley)
Associate Editor, International Journal of Green Energy (Taylor & Francis)
Solid oxide fuel cells for cleaner power generation
Solid oxide fuel cells (SOFCs) are promising electrochemical devices for power generation with lower carbon emission than conventional thermal power plants. To improve the durability and reduce the cost of SOFC system, it is essential to reduce the operating temperature of SOFC from conventionally about 800oC to about 500-600oC, which requires high performance and durable materials for operation in this range. In addition, the power density of SOFC stacks is usually well lower than that of lab-scale SOFC, due to the significant gas distribution non-uniformity in SOFC stack. Thus, new SOFC stack configurations are needed. This presentation will cover the research progresses in materials development and SOFC stack designs, including the thermal-expansion offset approach for cathode development and the non-conventional rib design for SOFC stacks. The future of SOFC for power generation will also be discussed.