Anode electrolysis electrode material using precious metal-based

Details Anode electrolysis electrode material using precious metal-based Anode electrolysis electrode material using precious metal-based

1997-04-09

1998-09-15

Bell, Bruce F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

420464, 420468, 420587, C25B 1104

Patent

active

058074686

ABSTRACT:
An electrode having an excellent corrosion resistance and long service life even in a severe corrosive environment such as in NaCl solutions for anode electrolysis in which chlorine gas or the like is produced at a high potential from the alloy surface. The electrode of the invention is provided using a precious metal-based amorphous alloy which has a good plasticity processibility and is applicable to a large-sized component. The object is implemented by provision of an electrode material for anode electrolysis which utilizes a precious metal-based amorphous alloy which satisfies the general formula NM.sub.100-a-b-c Ni.sub.a Cu.sub.b P.sub.c wherein NM comprises one or two precious metal elements selected from Pd and Pt; a, b and c being atomic percent, satisfy that 30.ltoreq.a+b.ltoreq.45,3.ltoreq.b/a.ltoreq.7, and 18.ltoreq.c.ltoreq.25, respectively; Pt is contained from 10 to 30 atom percent (at. %); and wherein a temperature width .DELTA.Tx in the supercooled liquid region (.DELTA.Tx=Tx-Tg) has a width of 70 K or more.

REFERENCES:
patent: 1779602 (1930-10-01), Kingsbury
patent: 4609442 (1986-09-01), Tenhover et al.
patent: 4696731 (1987-09-01), Tenhover
patent: 4781803 (1988-11-01), Harris et al.

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