A hydrophobic layer-based water feedback structure for passive mu-DMFC

作者：Xue, Rui; Zhang, Yufeng^*; Zhong, Shaoxuan; Liu, Xiaowei

来源：Microelectronic Engineering, 2018, 190: 57-62.

DOI：10.1016/j.mee.2018.01.003

• Micro-direct methanol fuel cell
• Graphene
• Water management
• Hydrophobic treatment

In recent years, micro-direct methanol fuel cells (mu DMFC) with high energy density, environmental protection features, rapid start-up, mild operating conditions, and convenient fuel storage have become a research hotspot Some difficulties must be overcome in order to realize the application of the mu DMFC as one of the newest types of portable energy. Currently, water management is one of the main problems researched in the field of mu DMFC. Therefore, we propose a new cathode water-feedback structure to alleviate the hazards of water flooding. We designed a new catholic support layer with stainless-steel fiber felt as the base material and carried out hydrophobic treatment on the exterior of the cathode. The influence of this composite material on the cathodic water management system is investigated, and the design scheme of this new structure is verified. Effective water management is verified by comparing photographs of the water flooding phenomenon on the cathode side. By analyzing the polarization curves and discharging curves, we demonstrate the contribution of the novel hydrophobic structure to the performance of the D mu MFC.

• 出版日期2018-4-15
• 单位哈尔滨工业大学