2002
DOI: 10.1149/1.1490715
|View full text |Cite
|
Sign up to set email alerts
|

An Electrochemical Method to Improve the Performance of Air Cathodes and Methanol Anodes

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1

Citation Types

1
26
0

Year Published

2005
2005
2021
2021

Publication Types

Select...
4
3
1

Relationship

0
8

Authors

Journals

citations
Cited by 50 publications
(27 citation statements)
references
References 5 publications
1
26
0
Order By: Relevance
“…The principle of hydrogen pumping is to improve PEM fuel cell performance by moving hydrogen from one side of the membrane to the other. As a result of this process, electrode catalyst utilization is increased and MEA performance is improved [4]. This is achieved by reducing the overpotential of oxygen reduction.…”
Section: Other Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…The principle of hydrogen pumping is to improve PEM fuel cell performance by moving hydrogen from one side of the membrane to the other. As a result of this process, electrode catalyst utilization is increased and MEA performance is improved [4]. This is achieved by reducing the overpotential of oxygen reduction.…”
Section: Other Methodsmentioning
confidence: 99%
“…On-line techniques explored include current control [5,6], potential control [7,8], temperature control [9][10][11], hydrogen pumping [4,12], CO stripping [13], and air braking [14,15]. Off-line methods include electrochemical conditioning of the MEA [16], and steaming or boiling the electrode [17].…”
Section: Introductionmentioning
confidence: 99%
“…For anode polarization and EIS, the cathode was fed with humidified H 2 at a rate of 5 sccm and functioned as a dynamic hydrogen electrode ͑DHE͒. 8,[28][29][30] The cathode was also the counter electrode. The anode was fed with methanol and functioned as working electrode.…”
Section: Methodsmentioning
confidence: 99%
“…Several methods have been proposed for conditioning of MEAs to achieve a stable and improved performance of DMFCs. [1][2][3][4] In DMFCs as in the case of polymer electrolyte membrane fuel cell ͑PEMFCs͒, sufficient hydration of polymer electrolyte membrane and recast ionomer in the catalyst layer is necessary to obtain stable proton conductivity, and hence the hydration process might require about 24-48 h. For instance, Aricó et al…”
mentioning
confidence: 99%
“…Several methods have been proposed for conditioning of MEAs to achieve a stable and improved performance of DMFCs. [1][2][3][4] In DMFCs as in the case of polymer electrolyte membrane fuel cell ͑PEMFCs͒, sufficient hydration of polymer electrolyte membrane and recast ionomer in the catalyst layer is necessary to obtain stable proton conductivity, and hence the hydration process might require about 24-48 h. For instance, Aricó et al 1 supplied water to both the anode and cathode compartments of a DMFC, and the cell was warmed up stepwise to a maximum operating temperature of 95°C, followed by an operation with the supply of methanol ͑0.5 M͒ and oxygen at a high current for a period of 24 h. Shukla et al 2 collected the polarization curves of DMFCs after hydrating the MEAs for 24 h by circulating a 2 M methanol solution through the anode compartment at 80°C. Scott et al 3 adopted both the above methods.…”
mentioning
confidence: 99%