## Abstract The effect of methanol crossover on the fuel utilization of a passive direct methanol fuel cell (DMFC) was reported. The results revealed that the Faradaic efficiency decreased from 46.9 to 17.4% when methanol concentration increased from 1.0 to 8.0โmolโL^โ1^ at the lower current densit
Single passive direct methanol fuel cell supplied with pure methanol
โ Scribed by Ligang Feng; Jing Zhang; Weiwei Cai; Liangliang; Wei Xing; Changpeng Liu
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 375 KB
- Volume
- 196
- Category
- Article
- ISSN
- 0378-7753
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โฆ Synopsis
A new single passive direct methanol fuel cell (DMFC) supplied with pure methanol is designed, assembled and tested using a pervaporation membrane (PM) to control the methanol transport. The effect of the PM size on the fuel cell performances and the constant current discharge of the fuel cell with onefueling are studied. The results show that the fuel cell with PM 9 cm 2 can yield a maximum power density of about 21 mW cm -2 , and a stable performances at a discharge current of 100 mA can last about 45 h. Compared with DMFC supplied with 3 M methanol solution, the energy density provided by this new DMFC has increased about 6 times.
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