How would I build an Ozone generator?
Nathan McCorkle
to have a small generator to bind things, hell I'd even try using it
to stick photos to my wall!
--
Nathan McCorkle
Rochester Institute of Technology
College of Science, Biotechnology/Bioinformatics
cyan...@gmail.com
Ozone is created in nature by lightning
It's also created by High Voltage ionizer circuits.
Be careful Ozone can cause health hazards.
KC2YAN
SkyWarn Advanced Certified
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CoryG
coil, put the spark gap and the coil inside a container and pump
oxygen into it - based on how long it sits inside you should have a
pretty predictable amount of Ozone as a Tesla coil is fairly stable in
energy output itself. You might want to modify it with a breakout
bump on the top portion. A far less cool method might be to use a
flyback transformer from a CRT monitor or TV in a closed box (ensure
adequate cooling as it allows it to be much smaller) with a spark gap
connecting the output. Any high power spark (including most static)
will convert 3O2 to 2O3, but you have to have a high enough
concentration of O3 for it to be meaningful, and as others have said -
be careful with all aspects of it, Ozone can be nasty.
> > .
Ryan Fobel
commercial unit that's cheaper than a full-on plasma chamber, I've
know people to use corona discharge guns (which are a few hundred
bucks new):
e.g. http://www.scribd.com/doc/37640394/PDMS-bonding-by-means-of-a-portable-low-cost-corona-system
-Ryan
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General Oya
Also I remember something similar called a violet wand, don't know if that creates ozone or just static electric charge though.
Nathan McCorkle
On Fri, Feb 4, 2011 at 2:24 PM, John Griessen <jo...@industromatic.com> wrote:
> On 02/03/2011 03:36 PM, DoktorJ wrote:
>>
>> I built a very simple one, years ago. It was just the transformer
>> from an air ionizer that I found at a thrift store. I wired it to
>> some foil mounted on either side of a mason jar.
>
> Are you meaning inside/outside the jar?
I think he means the surface (inside and out) is lined continuously
with aluminum foil, and attached to a wire, to form one electrode as a
whole. Then from the jar lid, another electrode extends downward into
the jar.
http://www.autopia.org/forum/professional-detailer-general-discussion/64907-diy-ozone-generator.html
>
> I'm thinking a microfluidics bonding tool might be in the form of
> a jar, HV inside the jar and a timer so you could make
> a batch and it would be inside the jar only.
>
> A wide mouth mason jar lid might be OK as a starting point
> for an airlock for exposing things to ozone.
>
yeah, sounds about right... or some pyrex baking-ware
> On 02/03/2011 11:07 AM, Eugen Leitl wrote:
>> On Thu, Feb 03, 2011 at 11:23:57AM -0500, Jordan Miller wrote:
>>> > but i don't think this is what you want. ozone only acts to bind
>>> > microfluidic layers together because it forces hydroxyl groups onto the
>>> > surfaces of glass and silicone, which can then react to form stable ether
>>> > linkages between each layer.
>> Ozone oxidizes organics, and preps the surface.
>
> Is ozone helpful for silicate glass to glass bonding? Any references?
>
>
i'm also interested in knowing, also in glass to silicon.
> John
>
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Nathan McCorkle
openmanufacturing... pure
oxygen shouldn't be harmful unless there is a fuel present.
On Mon, Feb 7, 2011 at 6:31 AM, Eugen Leitl <eu...@leitl.org> wrote:
> On Fri, Feb 04, 2011 at 09:46:59PM -0800, DoktorJ wrote:
>> Yes, foil goes on the outside of the jar with one electrode attached,
>> then a separate piece of foil on the inside of the jar with the other
>> electrode attached. The glass just acts to provide an insulated gap
>> between the two energized pieces of foil. As far as capturing the
>
> The ozone is produced in the corona discharge. You want to
> use pure oxygen/membrane separator to prevent NOx formation.
>
>> ozone inside the jar, I'm not completely sure where the ozone is
>> actually produced. I suspect it is produced on both the outside and
>> inside between the foil and glass, though I'm not completely sure
>> about that. More research would be required if you are looking to
>> actually produce and store ozone inside the jar.
>
> Ozone is unstable, and can be destroyed catalytically.
> You can freeze it out with liquid nitrogen, but liquid
> or solid ozone (deep to violet blue) is explosive.
>
> Caveat: sufficiently concentrated ozone ignites organics.
>
> --
> Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
> ______________________________________________________________
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CoryG
> When you say "pump oxygen into it", do you mean "pump air into it"? Pumping
> pure O2 into a closed box with a periodic spark sounds dangerous.
near the spark - and you could always put it inline with a glass tube
to avoid most risks,keeping it small in the process as a continuous
flow apparatus. You need to take care to keep the electrodes cool,
and you could feasibly use air with more impure yields (even in air
the O2 tends to form O3 as a part of the air becoming more conductive
when it reaches dielectric breakdown and makes that spark - the
natural flow of the air causes it to need to make new O3 to keep
sparking - pressure might actually work adversely to this process as
it would slow the rate of flow, or just be more dangerous - I'm not
really sure offhand but you really only need normal air pressure). It
would be ideal to do it with a slow rate of flow from an O2 generation
- there are many ways to get O2 out of the air, the cheapest would
probably be a passive filter with pores the size of oxygen molecules -
perhaps 2 for a smaller one to have a slight pressure against after
passing through the first to make the majority of smaller molecules
pass through it. Other methods include pressure swing absorption
(usually used in fairly high quantity applications for O2 and N2, but
I'm building a pretty precise multi-chamber (aside from the two
primary oscillators) one now for O2 N2 and Ar that works at about
300PSI (with a pump from eBay that cost about $10 as a buy it now item
with multiple listed and a bunch of large spent CO2 cartridges from
the local paintball field, the valves are the most expensive component
of one) - due to the concentrations N2 and O2 are the easiest to
extract from air with such a method (which itself also uses porous
material, which absorbs different size molecules more than others when
pressurized, releasing them last when depressurized) - the point of
that tangent being its not entirely impractical to build a PSA device
for pure O2 from the air - though electrolysis of water would be much
simpler if you only need small quantities and in short if your not
worried about purity (think 21% / 3 * 2 = very roughly 14% O3 by
volume utilizing air if you can get the rate of flow perfect or slower
than required) then air could work as the medium, but i personally
wouldn't pressurize it unless your going with PSA or cryo distallation
(much trickier than PSA to not break things around the device or
yourself if you DIY).
> Just out of curiosity, do you think the yield of O3 would increase with such
> an apparatus with increasing pressure?