In this work, the effect of aging of the electrolyte in the electrodeposition of Ni MoO2 composite coatings on their morphology (scanning electron microscopy), chemical composition (energy-dispersive X-ray spectroscopy), polarization characteristics and "service life", tested for the hydrogen evolution reaction (HER) in 32 mass % NaOH at 90 degrees C, was investigated. Polarization characteristics and results of the "service life" test of Ni MoO2 composite coatings obtained after different aging periods of the electrolyte for deposition (suspension of MoO2 powder particles in a solution containing 2 M NH4Cl + + 0.2 M NiCl2) were compared with that recorded for the commercial De Nora's Ni+RuO2 cathode coating (DN). It was shown that aging of the electrolyte did not influence the morphology and chemical composition of Ni MoO2 composite coatings electrodeposited under conditions simulating their industrial production, while the polarization characteristics for the HER were influenced. The... best coating, obtained after 180 days of electrolyte aging, showed a completely different (layered) structure of the deposit and significantly better performance than the commercial DN electrode during the "service life" test.
Keywords:
Ni-MoO2 composite coating / hydrogen evolution / "service life" test
Source:
Journal of the Serbian Chemical Society, 2013, 78, 5, 689-700
TY - JOUR
AU - Jović, Vladimir D
AU - Lačnjevac, Uroš
AU - Jović, Borka M
AU - Gajić-Krstajić, Ljiljana M
AU - Krstajić, Nedeljko V
PY - 2013
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/631
AB - In this work, the effect of aging of the electrolyte in the electrodeposition of Ni MoO2 composite coatings on their morphology (scanning electron microscopy), chemical composition (energy-dispersive X-ray spectroscopy), polarization characteristics and "service life", tested for the hydrogen evolution reaction (HER) in 32 mass % NaOH at 90 degrees C, was investigated. Polarization characteristics and results of the "service life" test of Ni MoO2 composite coatings obtained after different aging periods of the electrolyte for deposition (suspension of MoO2 powder particles in a solution containing 2 M NH4Cl + + 0.2 M NiCl2) were compared with that recorded for the commercial De Nora's Ni+RuO2 cathode coating (DN). It was shown that aging of the electrolyte did not influence the morphology and chemical composition of Ni MoO2 composite coatings electrodeposited under conditions simulating their industrial production, while the polarization characteristics for the HER were influenced. The best coating, obtained after 180 days of electrolyte aging, showed a completely different (layered) structure of the deposit and significantly better performance than the commercial DN electrode during the "service life" test.
PB - Srpsko hemijsko društvo, Beograd
T2 - Journal of the Serbian Chemical Society
T1 - Ni-MoO2 composite cathodes for hydrogen evolution in alkaline solution. Effect of aging of the electrolyte for their electrodeposition
EP - 700
IS - 5
SP - 689
VL - 78
DO - 10.2298/JSC120831112J
ER -
@article{
author = "Jović, Vladimir D and Lačnjevac, Uroš and Jović, Borka M and Gajić-Krstajić, Ljiljana M and Krstajić, Nedeljko V",
year = "2013",
abstract = "In this work, the effect of aging of the electrolyte in the electrodeposition of Ni MoO2 composite coatings on their morphology (scanning electron microscopy), chemical composition (energy-dispersive X-ray spectroscopy), polarization characteristics and "service life", tested for the hydrogen evolution reaction (HER) in 32 mass % NaOH at 90 degrees C, was investigated. Polarization characteristics and results of the "service life" test of Ni MoO2 composite coatings obtained after different aging periods of the electrolyte for deposition (suspension of MoO2 powder particles in a solution containing 2 M NH4Cl + + 0.2 M NiCl2) were compared with that recorded for the commercial De Nora's Ni+RuO2 cathode coating (DN). It was shown that aging of the electrolyte did not influence the morphology and chemical composition of Ni MoO2 composite coatings electrodeposited under conditions simulating their industrial production, while the polarization characteristics for the HER were influenced. The best coating, obtained after 180 days of electrolyte aging, showed a completely different (layered) structure of the deposit and significantly better performance than the commercial DN electrode during the "service life" test.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Ni-MoO2 composite cathodes for hydrogen evolution in alkaline solution. Effect of aging of the electrolyte for their electrodeposition",
pages = "700-689",
number = "5",
volume = "78",
doi = "10.2298/JSC120831112J"
}
Jović, V. D., Lačnjevac, U., Jović, B. M., Gajić-Krstajić, L. M.,& Krstajić, N. V.. (2013). Ni-MoO2 composite cathodes for hydrogen evolution in alkaline solution. Effect of aging of the electrolyte for their electrodeposition. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 78(5), 689-700.
https://doi.org/10.2298/JSC120831112J
Jović VD, Lačnjevac U, Jović BM, Gajić-Krstajić LM, Krstajić NV. Ni-MoO2 composite cathodes for hydrogen evolution in alkaline solution. Effect of aging of the electrolyte for their electrodeposition. in Journal of the Serbian Chemical Society. 2013;78(5):689-700.
doi:10.2298/JSC120831112J .
Jović, Vladimir D, Lačnjevac, Uroš, Jović, Borka M, Gajić-Krstajić, Ljiljana M, Krstajić, Nedeljko V, "Ni-MoO2 composite cathodes for hydrogen evolution in alkaline solution. Effect of aging of the electrolyte for their electrodeposition" in Journal of the Serbian Chemical Society, 78, no. 5 (2013):689-700,
https://doi.org/10.2298/JSC120831112J . .
