Temperature and methanol concentration dependences of direct methanol fuel cell performance measured by single cell having reference electrode

2011 ◽  
Vol 3 (4) ◽  
pp. 043107 ◽  
Author(s):  
Minoru Umeda ◽  
Kazuya Sayama ◽  
Mitsuhiro Inoue
Keyword(s):  
Fuel Cell ◽  
Single Cell ◽  
Direct Methanol Fuel Cell ◽  
Reference Electrode ◽  
Methanol Concentration ◽  
Cell Performance ◽  
Fuel Cell Performance ◽  
Concentration Dependences ◽  
Direct Methanol ◽  
Methanol Fuel Cell

Direct methanol fuel cell performance of sulfonated polyimide membranes

2009 ◽  
Vol 194 (2) ◽  
pp. 674-682 ◽  
Author(s):  
Zhaoxia Hu ◽  
Takahiro Ogou ◽  
Makoto Yoshino ◽  
Otoo Yamada ◽  
Hidetoshi Kita ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Cell Performance ◽  
Fuel Cell Performance ◽  
Sulfonated Polyimide ◽  
Direct Methanol ◽  
Methanol Fuel Cell ◽  
Polyimide Membranes

A Model of a High-Temperature Direct Methanol Fuel Cell

2013 ◽  
Vol 10 (5) ◽  
Author(s):  
K. Scott ◽  
S. Pilditch ◽  
M. Mamlouk
Keyword(s):  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Proton Exchange Membrane ◽  
Open Circuit ◽  
Proton Exchange ◽  
Cell Performance ◽  
Effect Of Temperature ◽  
Fuel Cell Performance ◽  
Direct Methanol ◽  
Methanol Fuel Cell

A steady-state, isothermal, one-dimensional model of a direct methanol proton exchange membrane fuel cell (PEMFC), with a polybenzimidazole (PBI) membrane, was developed. The electrode kinetics were represented by the Butler–Volmer equation, mass transport was described by the multicomponent Stefan–Maxwell equations and Darcy's law, and the ionic and electronic resistances described by Ohm's law. The model incorporated the effects of temperature and pressure on the open circuit potential, the exchange current density, and diffusion coefficients, together with the effect of water transport across the membrane on the conductivity of the PBI membrane. The influence of methanol crossover on the cathode polarization is included in the model. The polarization curves predicted by the model were validated against experimental data for a direct methanol fuel cell (DMFC) operating in the temperature range of 125–175 °C. There was good agreement between experimental and model data for the effect of temperature and oxygen/air pressure on cell performance. The fuel cell performance was relatively poor, at only 16 mW cm−2 peak power density using low concentrations of methanol in the vapor phase.

Nafion®/SiO2/m-BOT composite membranes for improved direct methanol fuel cell performance

RSC Advances ◽  
2014 ◽  
Vol 4 (88) ◽  
pp. 47129-47135 ◽  
Author(s):  
Yituo Wang ◽  
Guimei Han ◽  
Zhe Tian ◽  
Meng Wang ◽  
Jianling Li ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Specific Surface ◽  
Direct Methanol Fuel Cell ◽  
Composite Membranes ◽  
Cell Performance ◽  
Fuel Cell Performance ◽  
Direct Methanol ◽  
Methanol Fuel Cell

Bentonite (BOT) has excellent hygroscopicity and large specific surface, so it is chosen as a dopant of Nafion® membranes in this paper.

Effect of Anode and Cathode Current-Collector Structure on Performance of a Passive Direct Methanol Fuel Cell

2011 ◽  
Vol 347-353 ◽  
pp. 3275-3280 ◽  
Author(s):  
Xian Qi Cao ◽  
Ji Tian Han ◽  
Ze Ting Yu ◽  
Pei Pei Chen
Keyword(s):  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Current Collector ◽  
Cell Voltage ◽  
Methanol Concentration ◽  
Membrane Area ◽  
Fuel Cell Performance ◽  
Direct Methanol ◽  
Cathode Current ◽  
Methanol Fuel Cell

In this work, the effect of the current-collector structure on the performance of a passive direct methanol fuel cell (DMFC) was investigated. Parallel current-collector (PACC) and other two kinds of perforated current collectors (PECC) were designed, fabricated and tested. The studies were conducted in a passive DMFC with active membrane area of 9 cm2, working at ambient temperature and pressure. Two kinds of methanol solution of 2 M and 4 M were used. Results showed that the PACC as anode current-collector has a positive effect on cell voltage and power. For the cathode current-collector structure, the methanol concentration of 2 M for PECC-2 (higher open ratio 50.27 %) increased performance of DMFC. But the methanol concentration of 4 M led to an enhancement of fuel cell performance that used PACC or PECC-2 as cathode current-collector.

Improvement in direct methanol fuel cell performance by treating the anode at high anodic potential

2014 ◽  
Vol 245 ◽  
pp. 37-47 ◽  
Author(s):  
Prabhuram Joghee ◽  
Svitlana Pylypenko ◽  
Kevin Wood ◽  
April Corpuz ◽  
Guido Bender ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Cell Performance ◽  
Fuel Cell Performance ◽  
Anodic Potential ◽  
Direct Methanol ◽  
Methanol Fuel Cell
Sign in / Sign up

Export Citation Format

Share Document