Electro-active
me=""mml79"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml79&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=a3a617bf983f46b7ea9fa6491fcd8339"" title=""Click to view the MathML source"">Co30Ni70,
me=""mml80"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml80&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=f87ea132a7d104e1eff4a4265f8f315c"" title=""Click to view the MathML source"">Co30Mo70,
me=""mml81"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml81&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=6dc9edaa4ab9f31ccb5f3fa3c8841b57"" title=""Click to view the MathML source"">Ni30Mo70,
me=""mml82"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml82&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=8bd0f86401cc8eeb3659bda1fa997d86"" title=""Click to view the MathML source"">Co10Ni20Mo70,
me=""mml83"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml83&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=687c53d9c61d911471c6cebfe626201d"" title=""Click to view the MathML source"">Fe10Co30Ni60 and
me=""mml84"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml84&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=445b863e1079be7ef3c9ddd329546000"" title=""Click to view the MathML source"">Co10Fe30Ni60 wt % alloys have been prepared by
mechanical alloying. The electrocatalytic behavior of obtained electrodes has been evaluated in 30 wt % KOH aqueous solutions as a function of different te
mperatures (298, 323 and 343 K) and overvoltages (
me=""mml85"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml85&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=d4d858c6d043e7f52f59a9f4d2ce12e9"" title=""Click to view the MathML source"">η=200, 300, 400
mV). The effect of Fe conta
mination during
mechanical
milling was also analyzed. The electrode perfor
mance was studied by cyclic volta
mmetry, ac–i
mpedance and steady-state polarization techniques. Appreciable current values for oxygen evolution reactions (OER) were
measured at Ni–Co–Mo–Fe electrodes produced by this technique. It was also found that the electroche
mically for
med Co and Fe oxides and/or hydroxides did not show an activity for OER as good as reported on hydrogen evolution reaction (HER). Tafel plots of preoxidized at 1 cycle and prolonged cycled (50 cycles) for
me=""mml86"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml86&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=45eb39762fef2c62989f2f94320b4b6a"" title=""Click to view the MathML source"">Co30Ni70,
me=""mml87"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml87&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=f51b81bb81f1a3a5cf06dbf39e6a6881"" title=""Click to view the MathML source"">Co30Mo70,
me=""mml88"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml88&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=8b816004332fb35a3f93fa517fc29d03"" title=""Click to view the MathML source"">Ni30Mo70,
me=""mml89"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml89&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=e7e48b8b047b7d564af2d6f329769ed9"" title=""Click to view the MathML source"">Co10Ni20Mo70,
me=""mml90"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml90&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=0e9598cafed58609d84f0ee76b7ebb54"" title=""Click to view the MathML source"">Fe10Co30Ni60 and
me=""mml91"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml91&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=3e97586b8aa18b23bd36ebf535f0935e"" title=""Click to view the MathML source"">Co10Fe30Ni60 crystalline electrodes were very different, which
might be related to changes in the surface enrich
ment of one or two of the alloy constituents. The Mo electrocatalytic effects see
m to be
more i
mportant on the OER at higher te
mperatures than those showed previously for HER. Molybdenu
m containing crystalline Co and Ni powders
me=""mml92"">method=retrieve&_udi=B6V3F-4P3M23X-6&_mathId=mml92&_user=10&_cdi=5729&_rdoc=6&_acct=C000050221&_version=1&_userid=10&md5=a1b93b43dbd224ddc14522b4838d888d"" title=""Click to view the MathML source"">(Co10Ni20Mo70) showed the best catalytic behavior for the OER.