Make Conductive Silver Ink (complex ion based)
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- Опубликовано: 4 июл 2024
- We show how to make conductive silver ink.
1g of silver acetate is completely dissolved in 2.5mL of ammonium hydroxide (30%). 0.2mL of formic acid is added dropwise with stirring. Solution is then capped and allowed to stand for 12 hours. The solution is decanted and then pushed through a 0.2 micrometer pore syringe filter.
Draw it onto a surface and let it dry. Then heat it to 90 celsius to sinter it into solid silver.
Procedure taken from pubs.acs.org/doi/abs/10.1021/j... 
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My expectations were thoroughly crushed. Well done.
I find it so crazy that something that looks exactly like water (albeit a lot more viscous) can dry into something so metallic. It's a mind-blower.
insanely cool. this is something i could really make use of. thank you very much for this, nurd!
NurdRage, in the supplementary information of that paper it says you can add 10% 2,3 butanediol (by volume) which serves as both a humectant and viscosifying aid. You should add it and try to apply the ink on paper again.
That's a good question. I don't know. But i think it behaves like bulk silver so would have similar properties.
What's the good question?
Hi NurdRage, is ut possible you could go into the chemistry of fire gel? You know, the stuff they use for burn scenes in movies? I feel like you could do a few great episodes of that! Anyways, I love you're videos. Thank you for informing and entertaining us all!
0:37 Stirring bar:
They see me rollin'
They heatin'
I'm late but I just wanted to say that this is cool
Super! Thank you very much!
amazing. thanks.
thank i love the nurd rage channel thanks alot
Thank you very mutch for this nice Video !!!
The intro reminded me of "Résumé" - Dorothy Parker..
this lasts much longer and won't produce the dangerously explosive nitrides like the silver nitrate based versions.
So go for it :)
I heard silveramine complexes are explosive. How could you say it will not produce nitrides? Could u kindly reply.
Actually, according to Wolfram silver IS the most conductive metal. the thing that makes gold better than silver in terms of conductivity is that gold does not tarnish or corrode.
you could build a simple cnc machine with this ink and print on your board. Good concept.
So Really a much simpler and faster method would be to put copper carbonate dust into a chamber, dump ammonia like you did, THEN acetic acid in, and cap it it really quickly, as the pressure will push CO2 into water creating carbonic acid, reacting with ammonia, and this will decompose just as quickly as ammonium formate, correct? So the carbonate route would be better, as youll make acetates, and the reaction will proceed faster.
thanks for sharing this. Would this be effective as a prep method for carbon foams prior to electroplating?
wow, I just checked and you are right. I always heard it was gold, silver, copper. I guess they (whoever I heard it from) was wrong too.
Henryandginger haha it is the just the order the functionality works. Gold, silver then copper. Gold is preferred to silver not because of conductivity but because it is more resistant to oxidation and is more inert
Why did formic acid instead add ammonia formate?
sorry to ask if the conductive silver you make is also included in the manufacture of nanowire silver

Cool vid how thiin could you make the traces with something like that?
the links at the end go to the save video though.
Does it work with aluminium, copper or gold?
I don't think that oxalic acid is able to reduce aluminium ions to metallic aluminium. The first thing that comes to mind when thinking about copper ions are copper(II) ions, which are only soluble in an excess of concentrated ammonia, but I don't know how [Cu(NH3)4]^(2+) will react with oxalic acid, but it may be worth a try. Gold will form some miscellaneous Au2O3*x NH3 (x=2 or 3) precipitates with ammonia, but most definately will be reduced by oxalic acid,
What product can I put on silver conductive paint to make it shine like a mirror, without needing to heat this conductive paint, thank you for helping me, I'm Brazilian in the south of Brazil, I like your videos ok.
Nurd, I've watched A LOT of your videos, and I'm still wondering this since the first video I've seen: is that your real voice?
fixed
How long does it take to evaporate?
would this also work with copper acetate?
Hey NurdRage, could I use ascorbic acid as a reductant instead of formic acid? Or something more easily available?
NurdRage, I was wondering, what materials compose the stirring bar? Is it a material that is resistant to most chemicals, or do you just not use it for the experiments that would harm it?
Does this stuff respond to flexing or pressure? Could it be used to make sensors?
Sir
I need to asking you if I put this ink on glass cup and heat to 600 C ? shall I have a bright layer or not?
can you use silver nitrate from nitric acid? i.e silver refining? you could draw on copper with this too? dont know about the fuse bit at the end working though.
can you use a torch to heat up the silver ink at the end?
anytime I see a screen in your videos like @ 0:24 I instantly sigh, even if I never planned on trying an experiment myself.
sir please I need to make a conductive Gold ink with the same way by heating
Do a video of how to make C20H25N3O
Why is the correct video unlisted and the wrong one public?
could you make this with copper? I need to do this for a layer on plastics so I can electroplate them after
cool..but can you control its resistance.. i mean 4 ohms not alot but what if the next batch has 8 .in some circuits that might be a problem.. like amplifier circuits..anyway im stretching it i know... cool vid
silver acetate, is that reated with vinegar? acetic acid? when i use citric acid to clean my silver post anneal, is that silver citrate? does it have any aplication? would copper knock it out of suspension? ag(citrate) + cu = cu(citrate) + ag???????? thanks for any help.
@ the end of the video you said that the ink just turns black on paper. Is it cuz the ink is reacting to the bleach or the titanium dioxcide the use to make paper white?
Can this process be used to create silver tin-type photographs?
hello, thanks for video, a question: after sintered, the silver layer adheres well into substrate? glass for example?
I don't know about glass. But it does work well with ceramic and fibreglass.
I can replace silver acetate with copper acetate correct?
hello again, sorry using this post, but would you have some video how to make KAu(CN)2 ? it is much used in electroless plating.
Could you please upload something about white phosphorus, I've got some chunks about the size and shape of cigarettes imersed in water and I dont have the guts and knowlege yet to cut them...
👌
I need this, where can I buy some mLs? Or where can I get the somponents to make it?
Use a graphite pencil?
Next thing you should show is how to make explosive ink.
The thing looks like a silver-gecko :)
cool
is this what thermal compound is ?
My mom didn't believe this is where all of her earrings went
What if I want a silver tattoo?
how to make syringe filter
Hi guys .. I have an lil question for you .. is there a way to skip formic acid or substitute it to reduce silver acetate into pure silver ? ... Im not the chem dude im programmer and electrical eng .. so chemistry is liiitle big question to me ... but I dont have acess to formic acid next 3 days and I pretty need to do this ..... thx
The resistance is quite high for silver? Why is that?
Like redstone in real life!
I noticed that the resistance (if that's what you're measuring) continues to go down as you're holding the probes to the ink. Is this a chemical process or just some quirk of the ohmeter?
Normal "quirk" of the multi meter.
Would it be possible to use that ink on glass surface to make a mirror?
it gives an easier way to do it
if you look for Diy mirror, you should find tutorials for it.
they are chemicals needed are less "dangerous" and easier to handle
you also can use a old printer (buy a cheap used one with no chip inside the inktanks Like epson stylus colour 300) and you can print the chemicals onto a glass
Sebastian Schmidt
That "easier" way of making mirrors is very wasteful, you need to prepare lots of solution which all goes to drain after use. also none of those chemicals are dangerous besides silver salts that stain everything horribly.
using this ink for printing conductive tracks is not very suitable either, because conductivity is quite low it is only useful as initiator for galvanic copper or silver deposition
I am planning to use it for pcb vias or copper plating
Hi, very interesting the ink!! I read this paper a few months ago...
I'll try to use in my inkjet to print complex circuits!
I was thinking, if you use cupper acetate, will work too?
have you tried it with copper acetate?
@@SandeepKumar-jj7zi it doesnt work as it is. the anealing temp for copper acetate is around 250-300 C and should be done in nitrogen atmosphere.
Did you have success printing circuits with it?
Where do you buy this stuff
Will you be able to make particle graphite in solution? please. :> i know that you can,
whats the best concentration of the formic acid in this case?
Most probably 37% to 50%
redstone°?
Bane! is that you?
A magnetic"what" is added to the solution?
Stirrer.
It's a coated magnetic bead that is turned by inductors in the base below.
I'm guessing your favorite element is silver, huh?
Can we do it with copper ?
Thank you very much for the videos.
copper acetate completely dissolve in ammonium hydroxide with formic acid
@@bgianzin10 you have tried printing with copper?
i watch these video's all the time but i'm not subscribed. oh wait i am now :D
Are you sure it is not better than commercially available conductive inks? Silver IS the most conductive metal after all
Where do you live?
i recently had an explosion in my lab
NurdRage, did you obtain the formic acid from ants?
if we have AgNo3 can we make silver ink
You need to convert it by reaction with sodium acetate
if you get to dissolve in another medium (for example 15% KCN-solution ;-) ).
Wrong order bro. It goes silver, copper, then gold.
nope, silver is the SECOND, after gold which is the most conductive. Copper is third, and finally do not compare the commercial inks, which may be compounds, to pure metals. compounds can take on completely different characteristics than their parent elements, and sometimes a compound may function better in an application than a pure element.
sir can we replace silver acetate with other silver compound like silver chloride or silver nitrate?
unfortunately no. You need non-coordinating anions.
But you can easily convert silver nitrate into silver acetate as shown in one of my earlier videos
thank you so much sir i got your another video for converting silver nitrate to silver acetate.thanks a lot...
have you tried with copper acetate?
wooooooooowww
Sir, Is it you can Possible make DIY Silicon ink and Paint Video ??
How to make DIY silicon ink 2019.
Please, Sir it will useful for our school science Project 😭😭😭😭😭Please Sir.
where can i get syringes like his?
Your local drug dealer.
Yeah, from local drug dealers if you need it quickly, (now away with the joke :D) or from local pharmacies. If you can't find them, order it from ebay for like 2$/10 piece
Rob The Plumber WARNING: AIDS combusts when in contact with silver acetate.
Very nice,, but really tough to get those chemicals.. This is another approach, poor comparing to the silver but still cheaper and can be truley done with things from home: Just search in youtube for dpSnjNkisOs
Can i use this for graffiti
Brazil. You must have a license from the federal police to acquire it. I am not saying its impossible, but its very bureaucratic. Plus, we got a lot of ants. JK XD
Fixed a wrong equation.
random question on an old video, but could you use this as (somewhat permanent) thermal paste?
Thermal and electric conductivity are two different things, although being made of silver it is probably just better to use real thermal paste and warm temperatures would probably melt the ink anyway, also it is considerably more expensive than normal thermal paste.
Cassidy Boon Meme's doesn't the solvent that makes this liquid evaporate anyway? It sholdnt melt. And even if it does, there are phase changing thermal paste thingies. And I'm not considering manufacturing, I just want to get an edge for overclocking xD
idk it might, just use normal thermal paste though it works fine. if you really want to overclock though you will need a water cooling setup.
Cassidy Boon Meme's water cooling is useless unless you dump a fuckton of money on it. Dual rad (high end all in ones) is the same as high end air cooling, but with more headaches. That's why I thought of this as thermal paste. Better transfer=better cooling.
well overclocking costs, if you need your pc to perform well, your going to have to pay.
Printing a pcb instead of etching it.
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Now to find a printer that will print on plates with this ink, a 3D printer, and then I will TAKE OVER THE WORLD!
Its very hard to get formic acid where I live ;/. I may dry distill some ants lol
No he modifies it.
/watch?v=FrnJ11HXr9s
Lol... Could you put this into a pen?
It's a lizard!
Why the heck did I write oxalic acid?... Sorry. I'm stupid.
i love your videos,but why do you hide your identity
That looks like a lizard. :)
thumbs up if ur a nerd but stiil have no clue what he said
Adhesion is worst I've ever seen