A silicon-based micro direct methanol fuel cell with microblocks in anode structure

Author

Zhang, Qian ; Wang, Xiaohong ; Zhong, Lingyan ; Zhou, Yan An ; Qiu, Xinping ; Liu, Litian

Author_Institution

Tsinghua Univ., Beijing

fYear

2008

fDate

13-17 Jan. 2008

Firstpage

972

Lastpage

975

Abstract

This paper presents a micro direct methanol fuel cell (muDMFC) featured by the novel anode structure with microblocks, which drive the fuel from the laminar flow toward the turbulent flow. Both the muDMFC with microblocks and the regular serpentine-channel one are fabricated by using MEMS technologies and reliable polydimethylsiloxane (PDMS) assembly method. The performance of the prototype is measured and is compared with that of the regular muDMFC. Experimental results show that the muDMFC with microblocks has generated a maximum power density of 8.08 mW/cm², which is much higher than that of the regular muDMFC at the value of 3.87 mW/cm², using 2M methanol solution at room temperature.

Keywords

direct methanol fuel cells; electrochemical electrodes; elemental semiconductors; micromechanical devices; polymers; silicon; MEMS technologies; Si; laminar flow; methanol solution; microblock anode structure; polydimethylsiloxane assembly method; serpentine-channel fabrication; silicon-based microdirect methanol fuel cell; temperature 293 K to 298 K; turbulent flow; Anodes; Assembly; Biomembranes; Electrodes; Electrons; Fuel cells; Methanol; Micromechanical devices; Protons; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Micro Electro Mechanical Systems, 2008. MEMS 2008. IEEE 21st International Conference on

Conference_Location

Tucson, AZ

ISSN

1084-6999

Print_ISBN

978-1-4244-1792-6

Electronic_ISBN

1084-6999

Type

conf

DOI

10.1109/MEMSYS.2008.4443820

Filename

4443820