[Physltest] [Phys-L] Re: anomalies?

[Ludwik Kowalski <kowalskil@MAIL.MONTCLAIR.EDU>]

Thanks for pointing to the reference (which I have) and to proper
terminology. Unfortunately, my background in electrochemistry is not
sufficient to know how to use reduction potentials. I hope somebody
will show how these potentials either confirm or contradict the
threshold of 2.9 volts I measure. Perhaps these are not the numbers one
needs. Hopefully, somebody will help.

> > I wrote: " . . . An electrolytic cell (platinum anode and nickel
> > cathode) is connected to the power supply, through an ammeter. The
> > current-versus-voltage relation is different from what one would
> > expect from a metallic resistor. First the current is ~zero (below
> > ~10 microamps that I would notice), up to about 2.9 volts. Then the
> > current starts changing linearly at the rate of about 12.4 V/A . . . >> "

On Thursday, Jan 13, 2005, at 09:46 America/New_York, Dan Crowe wrote:

> The 82nd edition (2001-2002) of the
> _CRC_Handbook_of_Chemistry_and_Physics_ lists the reduction potential
> for Li+ to Li as -3.0401 V (p. 8-23).  It also lists the work function
> for Ni as between 5.04 eV and 5.35 eV, depending on the surface
> orientation, and the work function for Pt as between 5.12 eV and 5.93
> eV, depending on the surface orientation, with a value of 5.64 eV for
> polycrystalline Pt (p. 12-130).
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