Long term performance of an alkaline fuel cell with double layer electrodes

Date

2000-06-15

Author

Eroğlu, İnci
Han, E
Turker, L

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

150
views

0
downloads

The improvement of an alkaline fuel cell (hydrogen-oxygen) performance by changing the electrode structure and manufacturing method has been achieved by employing multilayer, Teflon-bonded gas diffusion type electrodes which were prepared by the rolling method. Active carbon or carbon black was used as the support material whereas platinum as catalyst and nickel screen as the backing material. Double layer electrodes possessed the active and the diffusion layers on the backing layer. The electrode manufacturing method was ameliorated by applying different compaction loads and altering the sintering conditions. The voltage-current density characteristics of the fuel cell were measured at different temperatures (25-70 degreesC). The minimum initial cost per kilowatt electricity produced was obtained with double layer elect-odes having 0.3 mg/cm(2) platinum load. The long term performance of the fuel cell under continuous and intermittent operations was investigated with double layer. The fuel cell assembled with these electrodes delivered a current density of 129 mA/cm(2) at a cell voltage of 0.6 V.

Subject Keywords

Active carbon, Electrode, Fuel cells, Latinum catalyst

URI

https://hdl.handle.net/11511/52784

Collections

Graduate School of Natural and Applied Sciences, Conference / Seminar

Suggestions

OpenMETU
Core

Performance of an alkaline fuel cell with single or double layer electrodes Han, E; Eroğlu, İnci; Turker, L (2000-02-01) In the present research, the improvement of an alkaline fuel cell performance by changing the electrode structure and manufacturing method has been achieved by employing multilayer, Teflon-bonded gas diffusion type electrodes which were prepared by the rolling method. Active carbon or carbon black was used as the support material, platinum as the catalyst and nickel screen as the backing material. Double layer electrodes possessed the active and the diffusion layers on the backing layer. However, the single...
PEM fuel cell short stack performances of silica doped nanocomposite membranes DEVRİM, YILSER; Devrim, Huseyin (2015-06-29) In this study, an air-cooled Proton Exchange Membrane Fuel Cell (PEMFC) short stack with Nafion/Silica nanocomposite membrane was designed and fabricated for net 100 W net power output to improve the stack performance at low relative humidity conditions. Composite membrane was prepared by solution casting method. Gas Diffusion Electrodes (GDE's) were produced by ultrasonic spray coating technique. Short stack design was based on electrochemical data obtained at 0.60 V was 0.45 A/cm(2) from performance tests...
Durability of PEM fuel cell electrocatalysts prepared by microwave irradiation technique Sayin, Elif Seda; BAYRAKÇEKEN YURTCAN, Ayşe; Eroğlu, İnci (2012-11-01) In this study, the durability of the PEM fuel cell electrocatalysts was investigated by using cyclic voltammetry (CV) and rotating disk electrode (RDE) techniques. Accelerated degradation tests (ADTs) were applied to the commercial catalysts and the electrocatalysts prepared by microwave irradiation technique in order to determine the platinum dissolution/agglomeration and carbon corrosion characteristics. The parameters examined for the commercial catalysts were carbon to Nafion (C/N) ratio in the catalyst...
Facilitation of water management in low Pt loaded PEM fuel cell by creating hydrophobic microporous layer with PTFE, FEP and PDMS polymers: Effect of polymer and carbon amounts ÖZTÜRK, Ayşenur; FIÇICILAR, BERKER; Eroğlu, İnci; BAYRAKÇEKEN YURTCAN, Ayşe (2017-08-17) Microporous layers (MPLs) were prepared with different hydrophobic polymers to establish water management in polymer electrolyte membrane (PEM) fuel cells. Besides conventionally used polymers polytetrafluoroethylene (PTFE) and fluorinated ethylene propylene (FEP), two different molecular weights (MW) of polydimethylsiloxane (PDMS) polymer were used as hydrophobic materials in MPL. Membrane electrode assemblies (MEAs) having MPLs with low MW PDMS polymer exhibited the best fuel cell performance compared to ...
Development of polybenzimidazole/graphene oxide composite membranes for high temperature PEM fuel cells Uregen, Nurhan; Pehlivanoglu, Kubra; Ozdemir, Yagmur; DEVRİM, YILSER (2017-01-26) In this study, phosphoric acid doped Polybenzimidazole/Graphene Oxide (PBI/GO) nano composite membranes were prepared by dispersion of various amounts of GO in PBI polymer matrix followed by phosphoric acid doping for high temperature proton exchange membrane fuel cell (HT-PEMFC) application. The structure of the PBI/GO composite membranes was investigated by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and by thermogravimetric analysis (TGA). The introduction of GO into the FBI polymer matri...

Citation Formats

İ. Eroğlu, E. Han, and L. Turker, “Long term performance of an alkaline fuel cell with double layer electrodes,” 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/52784.