High power direct methanol fuel cells running on 15M to neat methanol

Fuqiang Liu, C. Y. Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Recent fundamental studies have indicated the key requirement of low water crossover through the electrolyte membrane in order to enable the use of highly concentrated methanol in direct methanol fuel cells for portable electronics applications. In this paper, we shall demonstrate a single cell operated at 60°C with direct feed of methanol concentration ranging from 15M to pure methanol, while still achieving the power density of 60 mW/cm2 at 0.4V. Results of surprisingly low methanol and water crossover through a thin membrane, Nafion 112, will be reported and the interplay of water and methanol crossover will be discussed. Various components enabling such high cell performance and low crossover of water and methanol will be described, including fabrication and characterization of membrane-electrode assembly based on thin membranes (e.g. N112), methanol resistant anode structures, and cathode structures that control water crossover from the DMFC anode to the cathode. copyright The Electrochemical Society.

Original languageEnglish (US)
Title of host publicationDirect Methanol Fuel Cells
Pages79-84
Number of pages6
Edition24
DOIs
StatePublished - Dec 1 2007
Event209th ECS Meeting - Denver, CO, United States
Duration: May 7 2006May 12 2006

Publication series

NameECS Transactions
Number24
Volume2
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other209th ECS Meeting
CountryUnited States
CityDenver, CO
Period5/7/065/12/06

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Liu, F., & Wang, C. Y. (2007). High power direct methanol fuel cells running on 15M to neat methanol. In Direct Methanol Fuel Cells (24 ed., pp. 79-84). (ECS Transactions; Vol. 2, No. 24). https://doi.org/10.1149/1.2424317