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Service life test of the NiSn coatings as cathodes for hydrogen evolution in industrial chlor-alkali electrolysis

Authorized Users Only
2014
Authors
Jović, Borka M
Lačnjevac, Uroš
Krstajić, Nedeljko V
Jović, Vladimir D
Article (Published version)
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Abstract
In this work the "service life test" (SLT) of the NiSn alloy coatings as cathodes for the hydrogen evolution reaction (HER), deposited onto Ni 40 mesh at different current densities from the bath containing 0.1 mol dm(-3) SnCl2 + 0.3 mol dm(-3) NiCl2 + 0.6 mol dm(-3) K4P2O7 + 0.3 mol dm(-3) NH2CH2COOH at 50 degrees C, was investigated and compared with that recorded for the commercial Ni-RuO2 De Nora's (DN) cathode. The morphology and chemical compositions of all NiSn samples were investigated by SEM and EDS techniques before and after the SLT. HER during the SLT has also been monitored by EIS technique. The chemical compositions of surfaces of all NiSn alloy samples, as well as EIS results, were found to depend on the number of cycles performed during the SLT. The decrease of their catalytic activity for the HER in 32 wt.% NaOH at 90 degrees C with increasing the number of cycles (about 20-25 mV after 25 cycles) was practically identical to that for DN cathode, while NiSn samples depo...sited at -30 mA cm(-2), -60 mA cm(-2) and -100 mA cm(-2) possessed lower overpotential for the HER before and after SLT in comparison with that for the DN cathode. It is confirmed by the SEM-EDS and EIS analysis of the NiSn samples that the minor loss of the catalytic activity for the HER is the consequence of the change of chemical composition of NiSn coatings and decrease of the active surface area. This decrease is ascribed to partially eroded NiSn coatings due to oxygen evolution during the SLT.

Keywords:
Service life test / Roughness / NiSn alloy coatings / HER / Electrodeposition / Chemical composition
Source:
International Journal of Hydrogen Energy, 2014, 39, 17, 8947-8958
Publisher:
  • Pergamon-Elsevier Science Ltd, Oxford
Funding / projects:
  • Development, characterization and application nanostructured and composite electrocatalysts and interactive supports for fuel cells and water electrolysis (RS-172054)
  • Department for the Research and Development of De Nora Industries

DOI: 10.1016/j.ijhydene.2014.04.015

ISSN: 0360-3199

WoS: 000336880500005

Scopus: 2-s2.0-84901193499
[ Google Scholar ]
19
10
URI
http://rimsi.imsi.bg.ac.rs/handle/123456789/772
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Institut za multidisciplinarna istraživanja
TY  - JOUR
AU  - Jović, Borka M
AU  - Lačnjevac, Uroš
AU  - Krstajić, Nedeljko V
AU  - Jović, Vladimir D
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/772
AB  - In this work the "service life test" (SLT) of the NiSn alloy coatings as cathodes for the hydrogen evolution reaction (HER), deposited onto Ni 40 mesh at different current densities from the bath containing 0.1 mol dm(-3) SnCl2 + 0.3 mol dm(-3) NiCl2 + 0.6 mol dm(-3) K4P2O7 + 0.3 mol dm(-3) NH2CH2COOH at 50 degrees C, was investigated and compared with that recorded for the commercial Ni-RuO2 De Nora's (DN) cathode. The morphology and chemical compositions of all NiSn samples were investigated by SEM and EDS techniques before and after the SLT. HER during the SLT has also been monitored by EIS technique. The chemical compositions of surfaces of all NiSn alloy samples, as well as EIS results, were found to depend on the number of cycles performed during the SLT. The decrease of their catalytic activity for the HER in 32 wt.% NaOH at 90 degrees C with increasing the number of cycles (about 20-25 mV after 25 cycles) was practically identical to that for DN cathode, while NiSn samples deposited at -30 mA cm(-2), -60 mA cm(-2) and -100 mA cm(-2) possessed lower overpotential for the HER before and after SLT in comparison with that for the DN cathode. It is confirmed by the SEM-EDS and EIS analysis of the NiSn samples that the minor loss of the catalytic activity for the HER is the consequence of the change of chemical composition of NiSn coatings and decrease of the active surface area. This decrease is ascribed to partially eroded NiSn coatings due to oxygen evolution during the SLT.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - International Journal of Hydrogen Energy
T1  - Service life test of the NiSn coatings as cathodes for hydrogen evolution in industrial chlor-alkali electrolysis
EP  - 8958
IS  - 17
SP  - 8947
VL  - 39
DO  - 10.1016/j.ijhydene.2014.04.015
ER  - 
@article{
author = "Jović, Borka M and Lačnjevac, Uroš and Krstajić, Nedeljko V and Jović, Vladimir D",
year = "2014",
abstract = "In this work the "service life test" (SLT) of the NiSn alloy coatings as cathodes for the hydrogen evolution reaction (HER), deposited onto Ni 40 mesh at different current densities from the bath containing 0.1 mol dm(-3) SnCl2 + 0.3 mol dm(-3) NiCl2 + 0.6 mol dm(-3) K4P2O7 + 0.3 mol dm(-3) NH2CH2COOH at 50 degrees C, was investigated and compared with that recorded for the commercial Ni-RuO2 De Nora's (DN) cathode. The morphology and chemical compositions of all NiSn samples were investigated by SEM and EDS techniques before and after the SLT. HER during the SLT has also been monitored by EIS technique. The chemical compositions of surfaces of all NiSn alloy samples, as well as EIS results, were found to depend on the number of cycles performed during the SLT. The decrease of their catalytic activity for the HER in 32 wt.% NaOH at 90 degrees C with increasing the number of cycles (about 20-25 mV after 25 cycles) was practically identical to that for DN cathode, while NiSn samples deposited at -30 mA cm(-2), -60 mA cm(-2) and -100 mA cm(-2) possessed lower overpotential for the HER before and after SLT in comparison with that for the DN cathode. It is confirmed by the SEM-EDS and EIS analysis of the NiSn samples that the minor loss of the catalytic activity for the HER is the consequence of the change of chemical composition of NiSn coatings and decrease of the active surface area. This decrease is ascribed to partially eroded NiSn coatings due to oxygen evolution during the SLT.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "International Journal of Hydrogen Energy",
title = "Service life test of the NiSn coatings as cathodes for hydrogen evolution in industrial chlor-alkali electrolysis",
pages = "8958-8947",
number = "17",
volume = "39",
doi = "10.1016/j.ijhydene.2014.04.015"
}
Jović, B. M., Lačnjevac, U., Krstajić, N. V.,& Jović, V. D.. (2014). Service life test of the NiSn coatings as cathodes for hydrogen evolution in industrial chlor-alkali electrolysis. in International Journal of Hydrogen Energy
Pergamon-Elsevier Science Ltd, Oxford., 39(17), 8947-8958.
https://doi.org/10.1016/j.ijhydene.2014.04.015
Jović BM, Lačnjevac U, Krstajić NV, Jović VD. Service life test of the NiSn coatings as cathodes for hydrogen evolution in industrial chlor-alkali electrolysis. in International Journal of Hydrogen Energy. 2014;39(17):8947-8958.
doi:10.1016/j.ijhydene.2014.04.015 .
Jović, Borka M, Lačnjevac, Uroš, Krstajić, Nedeljko V, Jović, Vladimir D, "Service life test of the NiSn coatings as cathodes for hydrogen evolution in industrial chlor-alkali electrolysis" in International Journal of Hydrogen Energy, 39, no. 17 (2014):8947-8958,
https://doi.org/10.1016/j.ijhydene.2014.04.015 . .

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