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- Path: sparky!uunet!cis.ohio-state.edu!ucbvax!SLEEPY.NETWORK.COM!logajan
- From: logajan@SLEEPY.NETWORK.COM (John Logajan)
- Newsgroups: sci.physics.fusion
- Subject: Deuterium Absorption
- Message-ID: <9207220542.AA06964@sleepy.network.com>
- Date: 22 Jul 92 05:42:30 GMT
- Sender: daemon@ucbvax.BERKELEY.EDU
- Lines: 36
-
- ames!FNALD.FNAL.GOV!DROEGE writes:
- >John Logajan writes:
- >"If I manually closed then opened the circuit, ... bubbles ... from the Pt
- >(anode) ... almost no bubbles ... from the (cathode)"
- >
- >During many runs, we have observed that fresh Pd absorbes almost *all* the
- >evolved Deuterium (Hydrogen). At least 90%, possibly higher for a fresh
- >cathode. This is likely true for the Ni and Ti cathodes, I have not tried
- >Ti.
-
- I guess I was too obtuse with my description. What I found confusing
- about the observation was that there were no bubbles for a fraction of
- a second, and then there were. Meanwhile, bubbles started right away
- at the Pt anode. I could shut off the power before the bubbles ever
- started at the cathode. Now I believe it was probably some form of
- absorbtion (the whole basis for the cell in the first place, no? :-)
- but why did absorbtion efficiency drop off so quickly, so that bubbles
- formed rather than getting "pushed" into the anode.
-
- I was trying to link this in some way to your "film" being disrupted
- by bubbles idea -- but I admit I was stretching it a wee bit.
-
- [My next experiment, when I get round tuit, will be to run a pulse
- generator so that I only have sufficient duty cycle on time to do the
- non-bubble time bit, and then let it relax long enough before the next
- non-bubble on time. And *then* I will crank up the voltage in hopes of
- an asymetrical "hammer" effect. Where I can do a short on time pulse, and
- really "drive" those hydrogen molecules into the anode, yet relax enough
- so as to not waste undue heat -- yet get around to the next hammer blow
- before the injected molecules can find their way back out.
-
- This is all based on the naive belief that maximum loading has something
- to do with the electrolyte/anode interface voltage gradient, and that a high
- current (i.e. high applied voltage) will give the steepest gradient.]
-
- -- John Logajan
-