Ni-co alloys electrodeposited in stainless steel for supercapacitors electrodes
The development of electric energy storage devices with high power density has become one of the most challenging research areas in a wide range of applications. In this context, electrochemical supercapacitors are attracting great attention due to their high potential density, fast charge-discharge cycles and high number of life cycles. In the present work, Ni-Co nanostructured films were produced by electrodeposition technique in order to form a porous dendritic structure with enhanced surface area. The electrochemical behaviour of the deposited films was studied by charge-discharge experiments. The Ni-Co dendritic films electrodeposited at current densities i1 = -4 mA cm-2 and i2 = -30 mA cm-2 display a specific capacitance of 215 F g-1. The capacitance loss is about 33 % after 6000 charge-discharge cycles.
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LNEG - Laboratório Nacional de Energia e Geologia, I.P.
2013
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oai:scielo:S0870-116420130002000012014-01-22Ni-co alloys electrodeposited in stainless steel for supercapacitors electrodesSilva,R. P.Eugénio,S.Silva,T. M.Carmezim,M. J.Montemor,M. F. Supercapacitors Electrodeposition Ni-Co Alloys Specific Capacitance Dendritic Structure The development of electric energy storage devices with high power density has become one of the most challenging research areas in a wide range of applications. In this context, electrochemical supercapacitors are attracting great attention due to their high potential density, fast charge-discharge cycles and high number of life cycles. In the present work, Ni-Co nanostructured films were produced by electrodeposition technique in order to form a porous dendritic structure with enhanced surface area. The electrochemical behaviour of the deposited films was studied by charge-discharge experiments. The Ni-Co dendritic films electrodeposited at current densities i1 = -4 mA cm-2 and i2 = -30 mA cm-2 display a specific capacitance of 215 F g-1. The capacitance loss is about 33 % after 6000 charge-discharge cycles.info:eu-repo/semantics/openAccessLNEG - Laboratório Nacional de Energia e Geologia, I.P.Corrosão e Protecção de Materiais v.32 n.2 20132013-06-01info:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-11642013000200001en |
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Silva,R. P. Eugénio,S. Silva,T. M. Carmezim,M. J. Montemor,M. F. |
| spellingShingle |
Silva,R. P. Eugénio,S. Silva,T. M. Carmezim,M. J. Montemor,M. F. Ni-co alloys electrodeposited in stainless steel for supercapacitors electrodes |
| author_facet |
Silva,R. P. Eugénio,S. Silva,T. M. Carmezim,M. J. Montemor,M. F. |
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Silva,R. P. |
| title |
Ni-co alloys electrodeposited in stainless steel for supercapacitors electrodes |
| title_short |
Ni-co alloys electrodeposited in stainless steel for supercapacitors electrodes |
| title_full |
Ni-co alloys electrodeposited in stainless steel for supercapacitors electrodes |
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Ni-co alloys electrodeposited in stainless steel for supercapacitors electrodes |
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Ni-co alloys electrodeposited in stainless steel for supercapacitors electrodes |
| title_sort |
ni-co alloys electrodeposited in stainless steel for supercapacitors electrodes |
| description |
The development of electric energy storage devices with high power density has become one of the most challenging research areas in a wide range of applications. In this context, electrochemical supercapacitors are attracting great attention due to their high potential density, fast charge-discharge cycles and high number of life cycles. In the present work, Ni-Co nanostructured films were produced by electrodeposition technique in order to form a porous dendritic structure with enhanced surface area. The electrochemical behaviour of the deposited films was studied by charge-discharge experiments. The Ni-Co dendritic films electrodeposited at current densities i1 = -4 mA cm-2 and i2 = -30 mA cm-2 display a specific capacitance of 215 F g-1. The capacitance loss is about 33 % after 6000 charge-discharge cycles. |
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LNEG - Laboratório Nacional de Energia e Geologia, I.P. |
| publishDate |
2013 |
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http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-11642013000200001 |
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