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| Ultima descărcare din IBN: 2023-11-10 11:33 |
 SM ISO690:2012COVALIOV, Victor, COVALIOVA, Olga, IVANOV, Michail, DROVOSEKOV, Andrei. Autocatalytic reduction and characteristics
of boron-containing coatings
. In: Chemistry Journal of Moldova, 2013, nr. 1(8), pp. 47-57. ISSN 1857-1727. |
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| Chemistry Journal of Moldova | ||||||
| Numărul 1(8) / 2013 / ISSN 1857-1727 /ISSNe 2345-1688 | ||||||
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| Pag. 47-57 | ||||||
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The research results of the plating conditions, chemical composition and properties of Ni-B coatings and Ni-Re-B, Ni-Mo-B and Ni-W-B alloys are given. It was shown that introduction of alloying elements (Re, Моand W) in the composition of Ni-containing coatings modifi es the catalytic activity of the alloys’ surface, with regard to the parallel reactions of dimethylamino-borane(DMAB) heterogeneous hydrolysis, Ni reduction and evolving of the molecular hydrogen. It was found that with the increase in concentration of alloying element, boron contents in
the coatings is decreased to the trace amounts. The effect of alloys composition on hydrogen evolving overvoltage was studied. Due to the low overvoltage of hydrogen evolving (HE) on the alloy Ni-Re-B surface (11 at.% Re), it can be used as electrode for hydrogen generation from water in the electrolytic cell with novel design and improved technical-economical indicators. |
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| Cuvinte-cheie autocatalysis, hydrogen generation, electrolytic cell, coatings, alloys |
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