Performance of an alkaline fuel cell with single or double layer electrodes

Date

2000-02-01

Author

Han, E
Eroğlu, İnci
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

47
views

0
downloads

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 layer electrodes only had the active layer on the backing layer. The electrode manufacturing method was ameliorated by applying different compaction loads and altering the sintering conditions. The electrodes were prepared by using different PTFE contents and platinum loadings. The voltage-current density characteristics of the fuel cell were measured at different temperatures (25-70 degrees C) in a test module. The specific power density (mW/mg Pt) and the fuel cell efficiency obtained by using the double layer electrodes were higher compared to the single layer electrodes.

URI

https://hdl.handle.net/11511/57198

Journal

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

DOI

https://doi.org/10.1016/s0360-3199(99)00019-1

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Long term performance of an alkaline fuel cell with double layer electrodes Eroğlu, İnci; Han, E; Turker, L (2000-06-15) 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 manufactu...
Development and characterization of high power density cathode materials for lithium-ion batteries Doğu, Şafak; Aydınol, Mehmet Kadri; Evis, Zafer; Department of Micro and Nanotechnology (2015) In this thesis, facile and cost efficient aqua based synthesis method is developed to synthesize power dense and fast rechargeable LiFePO4 cathode materials. In order to obtain nano sized crystal morphology, nucleation controlled techniques were studied on precursor synthesis. These techniques are freeze (cryogenic) drying with co-precipitation and ultrasound assisted sub-sequential precipitation with vacuum drying at low temperatures (<350 K). In co-precipitation with freeze drying synthesis, star-like pla...
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...
Performance anallysis of an intermediate temperature solid oxide fuel cell Timurkutluk, Bora; Tarı, İlker; Department of Mechanical Engineering (2007) An intermediate temperature solid oxide fuel cell (SOFC) is developed and its performance is investigated experimentally and theoretically. In the experimental program, a gadolinium doped ceria based membrane electrode group is developed with the tape casting and screen printing methodology and characterized. An experimental setup is devised for the performance measurement of SOFCs and the performance of produced cells is investigated over a range of parameters including the electrolyte thickness, the sinte...
Vulcan-Supported Pt Electrocatalysts for PEMFCs Prepared using Supercritical Carbon Dioxide Deposition Bayrakceken, Ayse; Smirnova, Alevtina; Kitkamthorn, Usanee; Aindow, Mark; Tuerker, Lemi; Eroğlu, İnci; ERKEY, CAN (Informa UK Limited, 2009-01-01) In this study, supercritical carbon dioxide (scCO(2)) deposition was used to prepare vulcan-supported Pt (Pt/Vulcan) electrocatalysts for proton exchange membrane fuel cells (PEMFCs), and the effects of process variables on the properties of the electrocatalysts were investigated. The two different methods used to reduce the organometallic precursor were thermal reduction in nitrogen at atmospheric pressure and thermal reduction in scCO(2). In the former method, the maximum Pt loading achieved was 9%, and t...

Citation Formats

E. Han, İ. Eroğlu, and L. Turker, “Performance of an alkaline fuel cell with single or double layer electrodes,” INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, pp. 157–165, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/57198.