A monolithic integrated micro direct methanol fuel cell based on sulfo functionalized porous silicon

16th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Wang, M.^1,2 ; Lu, Y.X.^1,3 ; Liu, L.T.^1 ; Wang, X.H.^1

Insititute of Microelectronic, Tsinghua University, Beijing

100084, China^1

School of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou

450000, China^2

Université Paris-Est, ESCOM, ESIEE Paris, Noisy-le-Grand

93162, France^3

关键词: Desirable features;    Functionalized;    Maximum power density;    Micro direct methanol fuel cell;    Micro-fabrication techniques;    Proton-exchange membrane;    Silicon membranes;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/773/1/012017/pdf
DOI  :  10.1088/1742-6596/773/1/012017

来源: IOP

【 摘 要 】

In this paper, we demonstrate a monolithic integrated micro direct methanol fuel cell (μDMFC) for the first time. The monolithic integrated μDMFC combines proton exchange membrane (PEM) and Pt nanocatalysts, in which PEM is achieved by the functionalized porous silicon membrane and 3D Pt nanoflowers being synthesized in situ on it as catalysts. Sulfo groups functionalized porous silicon membrane serves as a PEM and a catalyst support simultaneously. The μDMFC prototype achieves an open circuit voltage of 0.3 V, a maximum power density of 5.5 mW/cm2. The monolithic integrated μDMFC offers several desirable features such as compatibility with micro fabrication techniques, an undeformable solid PEM and the convenience of assembly.