نتایج جستجو برای: direct methanol fuel cell

تعداد نتایج: 2116728  

2015
Michael L. Hainstock Yijun Tang

The development of direct methanol fuel cells required the attention to the electrolyte. A good electrolyte should not only be ionic conductive but also be crossover resistant. Ionic liquids could be a promising electrolyte for fuel cells. Monitoring methanol was critical in several locations in a direct methanol fuel cell. Conductivity could be used to monitor the methanol content in ionic liq...

Journal: :IOSR Journal of Applied Chemistry 2014

2011
V. B. Oliveira C. M. Rangel A. M. F. R. Pinto

Passive direct methanol fuel cells (DMFCs) are promising energy sources for portable electronic devices. Different from DMFCs with active fuel feeding systems, passive DMFCs with nearly stagnant fuel and air tend to bear comparatively less power densities. A steady state, one-dimensional, multi-component and thermal model is described and applied to simulate the operation of a passive direct me...

Journal: :Journal of Fuel Cell Science and Technology 2004

2013
Wen-bin Zhang Chun-guang Suo Hua Wang Jian-ming Chen

In order to determine the working conditions for direct methanol fuel cell and to gain higher performances, two one-dimensional, steady-state numerical models have been presented to evaluate the performance of direct methanol fuel cells (DMFCs) using Matlab. Genetic algorithm and direct Monte Carlo algorithm have been employed to determine the optimization operation conditions of the DMFC. The ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2013
ali fazeli abbas ali khodadadi yadollah mortazavi, hossein manafi

hydrogen can be produced for fuel cell applications by using methanol steam reforming reaction. in this article, a method was developed for regeneration of accelerated deactivated methanol-steam-reforming catalyst. successive deactivation–regeneration cycles were studied in a 250 hours test for the first time including 6 regeneration cycles. it is shown that regeneration of the catalyst in dilu...

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