dc.contributor.author |
Modibedi, Remegia M
|
|
dc.date.accessioned |
2012-04-03T13:49:49Z |
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dc.date.available |
2012-04-03T13:49:49Z |
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dc.date.issued |
2011-12 |
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dc.identifier.citation |
Modibedi, M. Pt deposition on carbon paper and Ti mesh substrates by surface limited redox replacement. 6th International Conference of the Africa Materials Research Society, Victoria Falls, Zimbabwe, 11-16 December 2011 |
en_US |
dc.identifier.uri |
http://hdl.handle.net/10204/5714
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|
dc.description |
6th International Conference of the Africa Materials Research Society, Victoria Falls, Zimbabwe, 11-16 December 2011 |
en_US |
dc.description.abstract |
Alternative energy resources are needed to alleviate the energy crisis. Fuel cells are one of the examples to help solve the problem. The main goal of this research is to reduce the amount of Pt required in fuel cells. Thus the outcome of this work will be lowering the cost of fuel cells in order to compete with current market technologies including gasoline internal combustion engines. The Electrochemical Atomic Layer Deposition (EC-ALD) technique was used to deposit Pt nanoparticles on cabon paper, the material used as gas diffusion layer for proton exchange membrane fuel cells (PEMFCs) and Ti-mesh. The deposition uses multiple redox replacement of underpotentially deposited Cu used as a sacrificial metal. The morphology and particle size of the deposited Pt nanoparticles were characterised using microscopy techniques. Pt composition on the substrates was estimated using energy dispersive X-ray spectroscopy (EDX). The electrochemical performance of the nanostuctures towards hydrogen and methanol oxidation as well as CO adsorption-oxidation, was investigated using cyclic voltammetry. These materials will be used for the fabrication of the membrane electrode assembly for fuel cell application. |
en_US |
dc.language.iso |
en |
en_US |
dc.relation.ispartofseries |
Workflow;8112 |
|
dc.subject |
Fuel cell |
en_US |
dc.subject |
Ti mesh |
en_US |
dc.subject |
Carbon paper |
en_US |
dc.subject |
Electrochemical deposition |
en_US |
dc.subject |
Surface limited redox reaction |
en_US |
dc.title |
Pt deposition on carbon paper and Ti mesh substrates by surface limited redox replacement |
en_US |
dc.type |
Conference Presentation |
en_US |
dc.identifier.apacitation |
Modibedi, R. M. (2011). Pt deposition on carbon paper and Ti mesh substrates by surface limited redox replacement. http://hdl.handle.net/10204/5714 |
en_ZA |
dc.identifier.chicagocitation |
Modibedi, Remegia M. "Pt deposition on carbon paper and Ti mesh substrates by surface limited redox replacement." (2011): http://hdl.handle.net/10204/5714 |
en_ZA |
dc.identifier.vancouvercitation |
Modibedi RM, Pt deposition on carbon paper and Ti mesh substrates by surface limited redox replacement; 2011. http://hdl.handle.net/10204/5714 . |
en_ZA |
dc.identifier.ris |
TY - Conference Presentation
AU - Modibedi, Remegia M
AB - Alternative energy resources are needed to alleviate the energy crisis. Fuel cells are one of the examples to help solve the problem. The main goal of this research is to reduce the amount of Pt required in fuel cells. Thus the outcome of this work will be lowering the cost of fuel cells in order to compete with current market technologies including gasoline internal combustion engines. The Electrochemical Atomic Layer Deposition (EC-ALD) technique was used to deposit Pt nanoparticles on cabon paper, the material used as gas diffusion layer for proton exchange membrane fuel cells (PEMFCs) and Ti-mesh. The deposition uses multiple redox replacement of underpotentially deposited Cu used as a sacrificial metal. The morphology and particle size of the deposited Pt nanoparticles were characterised using microscopy techniques. Pt composition on the substrates was estimated using energy dispersive X-ray spectroscopy (EDX). The electrochemical performance of the nanostuctures towards hydrogen and methanol oxidation as well as CO adsorption-oxidation, was investigated using cyclic voltammetry. These materials will be used for the fabrication of the membrane electrode assembly for fuel cell application.
DA - 2011-12
DB - ResearchSpace
DP - CSIR
KW - Fuel cell
KW - Ti mesh
KW - Carbon paper
KW - Electrochemical deposition
KW - Surface limited redox reaction
LK - https://researchspace.csir.co.za
PY - 2011
T1 - Pt deposition on carbon paper and Ti mesh substrates by surface limited redox replacement
TI - Pt deposition on carbon paper and Ti mesh substrates by surface limited redox replacement
UR - http://hdl.handle.net/10204/5714
ER -
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en_ZA |