rockyit98
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Making Graphitic carbon nitride (g-C3N4) from urea
https://en.wikipedia.org/wiki/Graphitic_carbon_nitride
100g urea + 0.5g Al2O3 nano powder is heated in a closed pot with tight lid (with out the lid you get no product it is tight enough to keep it from
flying off but also gas could come out) till ammonia and water comes out 550C for 3Hs.
3CO(NH2)2 -----Heat----> g-C3N4 +3H2O +2NH3
the theoretical yield is about 50g but only 10g is the actual yield.i messed up and lid came loose halfway through .so i got only 5g of flakes and
popcorn like (even color) stuff. separated the flakes and kept popcorn like one it was about 3.2g fluffy g-C3N4. i tested it with hot HNO3 nothing
happened.heat it in a lighter flame only catalyst Al2O3 remains.you can use AlCl3 0.5g with urea well mixed in instead of Al2O3 nano powder.
"A mind is a terrible thing to lose"-Meisner
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rockyit98
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ok what's wrong with you people ? this is a new compound with endless uses. or nobody is like yellow compounds like explosion&Fire . good quality
1g this $h1T sell about 100$.
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clearly_not_atara
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I think it's interesting, but what can we do with it? Could you coat it on things? Could you make a 'pencil'?
I do see at least one interesting possibility:
https://pubs.acs.org/doi/abs/10.1021/ja109856y
[Edited on 04-20-1969 by clearly_not_atara]
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Tsjerk
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That is definitely interesting, I didn't look too deep into it though.
@rockyit98: unfortunately, more often than not, you have to spice up new things a bit. If you have something new and interesting nobody knows about, a
small introduction about why this is cool helps... sparking interest.
How do you maintain heating at 550 for so long?
[Edited on 14-2-2020 by Tsjerk]
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rockyit98
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Quote: Originally posted by Tsjerk  | [
That is definitely interesting, I didn't look too deep into it though.
@rockyit98: unfortunately, more often than not, you have to spice up new things a bit. If you have something new and interesting nobody knows about, a
small introduction about why this is cool helps... sparking interest.
How do you maintain heating at 550 for so long?
[Edited on 14-2-2020 by Tsjerk] |
this is an interesting compound that can be used to Photocatalytic water splitting to make H2 and O2 from sunlight.but efficiency is so low to be
practical yet.i based this on Robert Murray-Smith 's video
https://www.youtube.com/watch?v=Jj-nuTSjCBc
using my electric furnaces.this is the first time i tried this but i think if i heat it to 200C for 30Min and another 30Min at 300C then ramp up to
550C whold be better because reaction is so fast so much NH3 comes at ones, maybe also improve the yield?.
"A mind is a terrible thing to lose"-Meisner
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rockyit98
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after reading this maybe my yield is right to be 4g .also they didn't use Al2O3 as a catalyst that from an another paper that i read.
the paper
Attachment: Simple Pyrolysis of Urea into Graphitic Carbon Nitride.pdf (630kB)
This file has been downloaded 393 times
[Edited on 14-2-2020 by rockyit98]
"A mind is a terrible thing to lose"-Meisner
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