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IJCT Vol.14 [2007] >
IJCT Vol.14(2) [March 2007] >
| Title: | Electro catalytic amorphous nickel alloy |
| Authors: | Muralidharan, V S |
| Keywords: | Amorphous alloy
Electro catalysis
Hydrogen evolution
Ni-S-Co alloy |
| Issue Date: | Mar-2007 |
| Publisher: | CSIR |
| IPC Code: | C22C45/04, C25B1/44 |
| Abstract: | Nickel and nickel based alloy deposits are used as cathode materials for hydrogen evolution. Watt’s bath modified with thiourea was used to deposit Ni-S and Ni-S-Co alloys. In presence of thiourea, Watt’s bath offered amorphous Ni-S alloy. In presence of CoCl₂ and thiourea, amorphous Ni-S-Co alloy was formed. Hydrogen evolution reaction occurred faster on amorphous Ni-S-Co alloy compared to amorphous Ni-S alloy from 28 wt% NaOH. Hydrogen evolution reaction rate increased with temperature on these amorphous alloys. A fast Volmer followed by slow Heyrovsky reaction occurred on the surfaces of these alloys. Heat treatment of amorphous Ni-S-Co alloy decreased the electro catalytic activity due to the disturbance in the amorphous structure. |
| Page(s): | 161-165 |
| ISSN: | 0971–457X |
| Source: | IJCT Vol.14(2) [March 2007]
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