Measurement of polarization curve and development of a unique semi-empirical model for description of PEMFC and DMFC performances [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2011 In this study, a single polymer electrolyte membrane fuel cell (PEMFC) in H2/ /O2 form with an effective dimension of 5 cm5 cm as well as a single direct methanol fuel cell (DMFC) with a dimension of 10 cm10 cm were fabricated.
M. SHAKERI +4 more
doaj
An Investigation of Palladium Oxygen Reduction Catalysts for the Direct Methanol Fuel Cell
International Journal of Electrochemistry, 2011 A comparative study of Pd and Pt was carried out in DMFC using different methanol concentrations and under different operating conditions. Cell performance was compared at methanol concentrations of 1, 3, 5, and 7 M and at temperatures of 20, 40, and 60 ...
G. F. Álvarez, M. Mamlouk, K. Scott
doaj +1 more source
Polymeric fluorine-free electrolyte for application in DMFC [PDF]
, 2009 We present latest results on the development of a new solid electrolyte for DMFC application. Films are obtained through fluorine-free chemistry consisting of grafting reaction between polyethylene film, preliminary irradiated, and styrene monomers. This
Ballabio O. +7 more
core +1 more source
Experimental Study on Two-Phase Flow and Power Performance of DMFC Utilizing the Drop Tower Beijing
, 2008 利用国家微重力实验室落塔提供的短时微重力实验环境，对常重力和微重力条件下直接甲醇燃料电池（DMFC）内部的气液两相流动形态和相应电性能等的影响进行了实验研究，发现在微重力条件下，DMFC阳极流道内CO_2气泡速度很小，气泡尺寸随着时间的推移而不断长大，甚至堵塞流道；流道堵塞现象随电流增大而急剧强化．电性能曲线显示，在浓差极化区存在显著的重力效应 ...
万士昕 +7 more
core +2 more sources
Study of Methanol Crossover Phenomenon in A Fully Passive Micro DMFC Stack
, 2020 In this study, a fully passive micro-direct methanol fuel cell stack (DMFC stack) was produced. The long-term use of DMFC stack crossover phenomenon and performance changes under different collector plate porosity, methanol aqueous solution concentration,
Cho, Yu-Hsiang
core
Synthesis study of fluor-free membranes for DMFC applications
, 2007 Direct Methanol Fuel Cells (DMFC) were developed for a variety of applications and different markets. Such applications range from micro fuel cells as a battery replacement in small electronic devices such as mobile phones or laptops.
M. Arimondi +10 more
core +1 more source
DMFC electrode preparation, performance and proton conductivity measurements
, 2008 A method that involves stenciling electrodes using dry powders for fuel cells is described and compared to anodes and cathodes prepared by the traditional spraying method using catalyst inks. Methods to determine the proton conductivity of the DMFC anode
Birry, L. +4 more
core +1 more source
Numerical Simulation of Double-Pore Bubble Coalescence Behavior in Direct Methanol Fuel Cells
EnergiesDirect methanol fuel cells (DMFCs) offer advantages such as high energy density and ease of storage and transportation. However, carbon dioxide bubbles generated in the anode flow channels are one factor affecting cell performance.
Zemu Tian +4 more
doaj +1 more source
Pilas de combustible de metanol DMFC
, 2008 Introducción a las pilas de combustible que utilizan metanol o etanol de forma directahttps://polimedia.upv.es/visor/?id=3430ac27-a0f6-834d-8545-9e9a4ba77dddRibes Greus, MD. (2008). Pilas de combustible de metanol DMFC. https://riunet.upv.es/handle/10251/
Martinez Felipe, Alfonso +1 more
core
Temperature-dependent kinetics of the anode in the DMFC
, 2004 The methanol oxidation kinetics was studied in a direct methanol fuel cell (DMFC) anode at 303, 323, and 343 K. The experimental result was fitted to a model for the porous anode and the kinetic parameters were extracted.
Lindbergh, Göran,, Nordlund, Joakim,
core +1 more source