Fabrication of Nanostructured Ni and Ni-IrO2 electrodes for wateralkaline electrolyzer

Risultato della ricerca: Other

Abstract

In the field of water-alkaline electrolyzer, the develop of nanoporous nickel electrodes with low cost and high electrocatalysis efficiency is one of the potential approaches to increase their performance [1]. To obtain nanostructured electrodes, a facile approach is that of template electrosynthesis. With this method we have obtained electrodes made of nanowires of Ni that have a very high surface area. These electrode were obtained by a two-step procedure allowing to obtain an ordered array of Ni nanowires that completely covering the surface of current collector made of the same material. Besides, by amperostatic deposition we have covered these electrode with nanoparticles of IrO2 electrocatalyst. In this work, the results on the growth and characterization of these nanostructured electrode will be presented and discussed. Ni NWs were obtained by pulsed potential deposition into polycarbonate membranes [2]. IrO2 electrocatalyst was deposited on Ni NWs by different electrochemical techniques, like cyclic voltammetry and potentiostatic deposition [3]. For comparison, IrO2 electrocatalyst was also deposited on a Ni flat substrate. All electrodes were characterized by SEM, EDS, and XRD analyses. Moreover, the preliminary test on the electrochemical performances, carried out at constant current in 1M aqueous solution of potassium hydroxide, will be also reported. [1] D. Pletcher, X. Li Intern. J. Hydrogen energy 36 (2011) 15089. [2] R. Inguanta, S. Piazza, C. Sunseri Electrochem. Acta 53 (2008) 5766. [3] E. Ahlberg, P. Steegstra Electrochem. Acta 68 (2012) 206.
Lingua originaleEnglish
Numero di pagine1
Stato di pubblicazionePublished - 2016

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Fabrication
Electrodes
Electrocatalysts
polycarbonate
Nanowires
Electrocatalysis
Nickel
Cyclic voltammetry
Energy dispersive spectroscopy
Hydrogen
Nanoparticles
Membranes
Scanning electron microscopy
Water
Substrates
Costs

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title = "Fabrication of Nanostructured Ni and Ni-IrO2 electrodes for wateralkaline electrolyzer",
abstract = "In the field of water-alkaline electrolyzer, the develop of nanoporous nickel electrodes with low cost and high electrocatalysis efficiency is one of the potential approaches to increase their performance [1]. To obtain nanostructured electrodes, a facile approach is that of template electrosynthesis. With this method we have obtained electrodes made of nanowires of Ni that have a very high surface area. These electrode were obtained by a two-step procedure allowing to obtain an ordered array of Ni nanowires that completely covering the surface of current collector made of the same material. Besides, by amperostatic deposition we have covered these electrode with nanoparticles of IrO2 electrocatalyst. In this work, the results on the growth and characterization of these nanostructured electrode will be presented and discussed. Ni NWs were obtained by pulsed potential deposition into polycarbonate membranes [2]. IrO2 electrocatalyst was deposited on Ni NWs by different electrochemical techniques, like cyclic voltammetry and potentiostatic deposition [3]. For comparison, IrO2 electrocatalyst was also deposited on a Ni flat substrate. All electrodes were characterized by SEM, EDS, and XRD analyses. Moreover, the preliminary test on the electrochemical performances, carried out at constant current in 1M aqueous solution of potassium hydroxide, will be also reported. [1] D. Pletcher, X. Li Intern. J. Hydrogen energy 36 (2011) 15089. [2] R. Inguanta, S. Piazza, C. Sunseri Electrochem. Acta 53 (2008) 5766. [3] E. Ahlberg, P. Steegstra Electrochem. Acta 68 (2012) 206.",
author = "Rosalinda Inguanta and Fabrizio Ganci and Salvatore Piazza and Carmelo Sunseri",
year = "2016",
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TY - CONF

T1 - Fabrication of Nanostructured Ni and Ni-IrO2 electrodes for wateralkaline electrolyzer

AU - Inguanta, Rosalinda

AU - Ganci, Fabrizio

AU - Piazza, Salvatore

AU - Sunseri, Carmelo

PY - 2016

Y1 - 2016

N2 - In the field of water-alkaline electrolyzer, the develop of nanoporous nickel electrodes with low cost and high electrocatalysis efficiency is one of the potential approaches to increase their performance [1]. To obtain nanostructured electrodes, a facile approach is that of template electrosynthesis. With this method we have obtained electrodes made of nanowires of Ni that have a very high surface area. These electrode were obtained by a two-step procedure allowing to obtain an ordered array of Ni nanowires that completely covering the surface of current collector made of the same material. Besides, by amperostatic deposition we have covered these electrode with nanoparticles of IrO2 electrocatalyst. In this work, the results on the growth and characterization of these nanostructured electrode will be presented and discussed. Ni NWs were obtained by pulsed potential deposition into polycarbonate membranes [2]. IrO2 electrocatalyst was deposited on Ni NWs by different electrochemical techniques, like cyclic voltammetry and potentiostatic deposition [3]. For comparison, IrO2 electrocatalyst was also deposited on a Ni flat substrate. All electrodes were characterized by SEM, EDS, and XRD analyses. Moreover, the preliminary test on the electrochemical performances, carried out at constant current in 1M aqueous solution of potassium hydroxide, will be also reported. [1] D. Pletcher, X. Li Intern. J. Hydrogen energy 36 (2011) 15089. [2] R. Inguanta, S. Piazza, C. Sunseri Electrochem. Acta 53 (2008) 5766. [3] E. Ahlberg, P. Steegstra Electrochem. Acta 68 (2012) 206.

AB - In the field of water-alkaline electrolyzer, the develop of nanoporous nickel electrodes with low cost and high electrocatalysis efficiency is one of the potential approaches to increase their performance [1]. To obtain nanostructured electrodes, a facile approach is that of template electrosynthesis. With this method we have obtained electrodes made of nanowires of Ni that have a very high surface area. These electrode were obtained by a two-step procedure allowing to obtain an ordered array of Ni nanowires that completely covering the surface of current collector made of the same material. Besides, by amperostatic deposition we have covered these electrode with nanoparticles of IrO2 electrocatalyst. In this work, the results on the growth and characterization of these nanostructured electrode will be presented and discussed. Ni NWs were obtained by pulsed potential deposition into polycarbonate membranes [2]. IrO2 electrocatalyst was deposited on Ni NWs by different electrochemical techniques, like cyclic voltammetry and potentiostatic deposition [3]. For comparison, IrO2 electrocatalyst was also deposited on a Ni flat substrate. All electrodes were characterized by SEM, EDS, and XRD analyses. Moreover, the preliminary test on the electrochemical performances, carried out at constant current in 1M aqueous solution of potassium hydroxide, will be also reported. [1] D. Pletcher, X. Li Intern. J. Hydrogen energy 36 (2011) 15089. [2] R. Inguanta, S. Piazza, C. Sunseri Electrochem. Acta 53 (2008) 5766. [3] E. Ahlberg, P. Steegstra Electrochem. Acta 68 (2012) 206.

UR - http://hdl.handle.net/10447/192607

M3 - Other

ER -