scholarly journals Improving the Electrochemical Properties of Carbon Paper as Cathodes for Microfluidic Fuel Cells by the Electrochemical Activation in Different Solutions

ACS Omega ◽  
2021 ◽  
Author(s):  
Chunmei Liu ◽  
Canxing Sun ◽  
Yanjun Gao ◽  
Weijuan Lan ◽  
Shaowei Chen
Keyword(s):  
Fuel Cells ◽  
Electrochemical Properties ◽  
Electrochemical Activation ◽  
Carbon Paper

Micro-Fluidic Assisted Passive Direct Methanol Fuel Cells

2012 ◽  
Author(s):  
Gladys Garza ◽  
Peiwen Li ◽  
Douglas Loy
Keyword(s):  
Fuel Cells ◽  
Direct Methanol Fuel Cells ◽  
Electrochemical Reaction ◽  
Cathode Side ◽  
Carbon Paper ◽  
Membrane Electrode ◽  
Operation Temperature ◽  
Direct Methanol ◽  
Methanol Fuel Cells ◽  
And Control

A novel design of micro-fluidic structure has been proposed to facilitate passive methanol supply and ventilation of carbon dioxide in direct methanol fuel cells (DMFC). Experimental study was conducted for three in-house fabricated cells which have different membrane-electrode-assemblies (MEA) and cathode-side air-breathing current collectors. Low rate of passive methanol supply and control was accomplished through capillary-force-driven mass transfer in the in-plane of carbon paper wicks. The low methanol supply rate using this passive method only meets the need of fuel of the electrochemical reaction, and there is almost no surplus methanol that could cross over the membrane. The micro-fluidic structure on the anode plate also makes passive removal of the CO2 gas from the electrochemical reaction. The influence of the concentration of methanol and cell operation temperature was examined and compared in the study. The results reveal very promising performance in the passive DMFCs when a methanol concentration is above 8M.

Influence of graphite powder on the properties of carbon paper for proton-exchange membrane fuel cells

Carbon ◽  
2013 ◽  
Vol 52 ◽  
pp. 625
Author(s):  
Yi-li Liang ◽  
Zhi-yong Xie ◽  
Chuan-jun Tu ◽  
Xian Tang ◽  
Piao-piao Yang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Proton Exchange Membrane ◽  
Graphite Powder ◽  
Proton Exchange ◽  
Carbon Paper ◽  
Exchange Membrane

scholarly journals Activity and Stability of (Pr1-xNdx)2NiO4+δas Cathodes for Oxide Fuel Cells: Part VI. The Role of Cu Dopant on the Structure and Electrochemical Properties

2017 ◽  
Vol 164 (10) ◽  
pp. F3131-F3139 ◽  
Author(s):  
Emir Dogdibegovic ◽  
Jingbo Yan ◽  
Qinsheng Cai ◽  
Hwa Young Jung ◽  
Zhengliang Xing ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Electrochemical Properties ◽  
Oxide Fuel ◽  
Cu Dopant

Fabrication and Characterization of Carbon Fiber Paper for Application of Proton Exchange Membrane Fuel Cells

2014 ◽  
Vol 787 ◽  
pp. 407-411 ◽  
Author(s):  
Kai Yang ◽  
Zhi Yong Xie ◽  
Qi Zhong Huang ◽  
Xian Tang ◽  
Rong Hu
Keyword(s):  
Fuel Cells ◽  
Carbon Content ◽  
Proton Exchange Membrane ◽  
Chemical Vapor ◽  
Heating Time ◽  
Proton Exchange ◽  
Carbon Paper ◽  
Carbon Fiber Paper ◽  
Exchange Membrane

Using the dry method-prepared polyacrylonitrile based carbon fibers as raw the material, carbon paper applied for proton exchange membrane fuel cells was prepared by the processes of molding, high temperature carbonization, chemical vapor deposition (CVD), and graphitization. The effects of resin carbon content and subsequent heat-treatment process parameters on the properties of carbon paper were studied. The results show that: the resin carbon content is an important factor to affect the density, thickness, through-plane resistivity and porosity of carbon paper. When the resin carbon content is 20%, the thickness of carbon paper is 0.20mm, the density is 0.41g/cm3, and the porosity is 74.5%, in line with requirements of the fuel cell. When the heating time is 4 hours, the porosity is 71.9%.

Sign in / Sign up

Export Citation Format

Share Document