Corrected accelerated service life test of electrodeposited NiSn alloys and Ni as cathodes for industrial alkaline water electrolysis
Abstract
The "corrected accelerated service life test for hydrogen evolution reaction" (CASLT-HER), designed for application of certain electrode materials as cathodes in the cell for alkaline water electrolysis in 30 % KOH at 80 degrees C, was performed at electrodeposited NiSn alloy and Ni 40 mesh electrodes. The Ni 40 mesh was slightly etched, while the NiSn alloy coating was electro-deposited from the bath containing pyrophosphate, glycine, SnCl2 and NiCl2 onto Ni 40 mesh to the thickness of approximately 40 mu m. It is shown that the NiSn cathode possess from maximum 0.77 V to minimum 0.30 V better over-potential than the Ni 40 mesh electrode during the 5 years of their exploitation at the conditions of industrial alkaline water electrolysis. It is also shown that both electrodes should be held at j = -0.3 A cm(-2) for at least 5 h in order to establish stable overpotential response. The limiting overpotential values for applying cyclic voltammetry (CVs, to mimic "polarity inversion") shou...ld be determined in a separate experiment before the CASLT-HER and should be adjusted during the application of CVs.
Keywords:
hydrogen evolution / cyclic voltammetry / constant current densitySource:
Journal of the Serbian Chemical Society, 2019, 84, 11, 1271-1286Publisher:
- Srpsko hemijsko društvo, Beograd
Funding / projects:
DOI: 10.2298/JSC190515074J
ISSN: 0352-5139
WoS: 000500748300008
Scopus: 2-s2.0-85076345188
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Institution/Community
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Jović, Vladimir D AU - Jović, Borka M AU - Elezović, Nevenka R. AU - Gajić-Krstajić, Ljiljana M PY - 2019 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1249 AB - The "corrected accelerated service life test for hydrogen evolution reaction" (CASLT-HER), designed for application of certain electrode materials as cathodes in the cell for alkaline water electrolysis in 30 % KOH at 80 degrees C, was performed at electrodeposited NiSn alloy and Ni 40 mesh electrodes. The Ni 40 mesh was slightly etched, while the NiSn alloy coating was electro-deposited from the bath containing pyrophosphate, glycine, SnCl2 and NiCl2 onto Ni 40 mesh to the thickness of approximately 40 mu m. It is shown that the NiSn cathode possess from maximum 0.77 V to minimum 0.30 V better over-potential than the Ni 40 mesh electrode during the 5 years of their exploitation at the conditions of industrial alkaline water electrolysis. It is also shown that both electrodes should be held at j = -0.3 A cm(-2) for at least 5 h in order to establish stable overpotential response. The limiting overpotential values for applying cyclic voltammetry (CVs, to mimic "polarity inversion") should be determined in a separate experiment before the CASLT-HER and should be adjusted during the application of CVs. PB - Srpsko hemijsko društvo, Beograd T2 - Journal of the Serbian Chemical Society T1 - Corrected accelerated service life test of electrodeposited NiSn alloys and Ni as cathodes for industrial alkaline water electrolysis EP - 1286 IS - 11 SP - 1271 VL - 84 DO - 10.2298/JSC190515074J ER -
@article{ author = "Jović, Vladimir D and Jović, Borka M and Elezović, Nevenka R. and Gajić-Krstajić, Ljiljana M", year = "2019", abstract = "The "corrected accelerated service life test for hydrogen evolution reaction" (CASLT-HER), designed for application of certain electrode materials as cathodes in the cell for alkaline water electrolysis in 30 % KOH at 80 degrees C, was performed at electrodeposited NiSn alloy and Ni 40 mesh electrodes. The Ni 40 mesh was slightly etched, while the NiSn alloy coating was electro-deposited from the bath containing pyrophosphate, glycine, SnCl2 and NiCl2 onto Ni 40 mesh to the thickness of approximately 40 mu m. It is shown that the NiSn cathode possess from maximum 0.77 V to minimum 0.30 V better over-potential than the Ni 40 mesh electrode during the 5 years of their exploitation at the conditions of industrial alkaline water electrolysis. It is also shown that both electrodes should be held at j = -0.3 A cm(-2) for at least 5 h in order to establish stable overpotential response. The limiting overpotential values for applying cyclic voltammetry (CVs, to mimic "polarity inversion") should be determined in a separate experiment before the CASLT-HER and should be adjusted during the application of CVs.", publisher = "Srpsko hemijsko društvo, Beograd", journal = "Journal of the Serbian Chemical Society", title = "Corrected accelerated service life test of electrodeposited NiSn alloys and Ni as cathodes for industrial alkaline water electrolysis", pages = "1286-1271", number = "11", volume = "84", doi = "10.2298/JSC190515074J" }
Jović, V. D., Jović, B. M., Elezović, N. R.,& Gajić-Krstajić, L. M.. (2019). Corrected accelerated service life test of electrodeposited NiSn alloys and Ni as cathodes for industrial alkaline water electrolysis. in Journal of the Serbian Chemical Society Srpsko hemijsko društvo, Beograd., 84(11), 1271-1286. https://doi.org/10.2298/JSC190515074J
Jović VD, Jović BM, Elezović NR, Gajić-Krstajić LM. Corrected accelerated service life test of electrodeposited NiSn alloys and Ni as cathodes for industrial alkaline water electrolysis. in Journal of the Serbian Chemical Society. 2019;84(11):1271-1286. doi:10.2298/JSC190515074J .
Jović, Vladimir D, Jović, Borka M, Elezović, Nevenka R., Gajić-Krstajić, Ljiljana M, "Corrected accelerated service life test of electrodeposited NiSn alloys and Ni as cathodes for industrial alkaline water electrolysis" in Journal of the Serbian Chemical Society, 84, no. 11 (2019):1271-1286, https://doi.org/10.2298/JSC190515074J . .