Jens Nørskov: Generation of Ammonia Using Solar Energy

Jens Nørskov: Generation of Ammonia Using Solar Energy | GCEP Symposium - October 18, 2017

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Stanford ENERGY

Күн бұрын

Пікірлер: 37

@sivabalankaniapan6275 2 жыл бұрын

This is simply amazing.

@danyun717 3 жыл бұрын

This will be revolutionary as a carrier for the Hydrogen economy

@crazyoldhippieguy 4 жыл бұрын

11-12-2019.Please keep me in mind as we can use this in Malta.

@AKK105 8 ай бұрын

Dear Professor and my friends here, Good day to you all. At 17:05, professor said that we don't have that. That's a challenge! I don't understand what and why?

@quanghuybui4762 2 жыл бұрын

really really good for my exercise

@dan2304 10 ай бұрын

Will be necessary for ammonia for fertilizer. But for energy; how much of the original energy used to make the ammonia is left in the ammonia? Very little, maybe some 10 times the energy to make ammonia than is in the ammonia. Batteries are all ready over 90% efficient.

@anaazua4663 Жыл бұрын

Does anyknow know what the asterisks represent on the chemical reactions? Min: 11:54 Thanks!

@johanv4668 Жыл бұрын

Chemical synthesis reaction is on top of that page. this is what going in and result is what is comming out.( in 1 step ) but these kind of reaction don't go in 1 step. the under laying steps are here explained. but we don't know all these steps exactly. mostly is theoretical. if we better understand how reactions are steped. we can also better predict what kind of catalysator is needed.

@petevenuti7355 Жыл бұрын

I believe the * represents electrons, but keep in mind these elements want to be diatomic so the monoatomic are intermediate and temporary.

@buggi666 Жыл бұрын

In chemistry this is in layman terms like being "excited"

@martinr7728 Жыл бұрын

the * refers to a site on the catalyst

@wise8163 2 жыл бұрын

13:43

@kanti12us Жыл бұрын

where are you getting 700K heat?

@shawnnoyes4620 Жыл бұрын

Gen IV nuclear reactor

@oktogen1476 Жыл бұрын

Fossil fuels

@NSBarnett 2 жыл бұрын

Nitruction? (At 7:18) the natural enzyme? HELP!

@jessehorstman 2 жыл бұрын

en.m.wikipedia.org/wiki/Nitrogenase#:~:text=Nitrogenases%20are%20enzymes%20(EC%201.18,to%20ammonia%20(NH3).

@AKK105 8 ай бұрын

Do you mean nitrification?

@NSBarnett 5 ай бұрын

@@AKK105 I'm asking what the man said. It sounded like nitruction, but I think there is no such term. He's clearly a non-native English speaker, so maybe it's a word from his language (Danish, possibly). Or maybe it's a jargon word for Nitrogen-reduction, Nitrogeduction, Nitroduction, Nitruction, you see? Maybe that's it.

@glike2 2 жыл бұрын

Why not build a high pressure plant at an equal pressure depth under water?

@pearsonbrown6740 2 жыл бұрын

Because you need to match that pressure to force it into that environment.

@khronyk6139 Ай бұрын

if more engineers would be inspired and work on the side of their jobs, those projects, we wouldn't have to wait so long for improvements. in any other field, if you have an idea, everyone will tell you to spend time on it when you can.... scientists.... no way. They are busy day dreaming.

@travismoore7849 2 жыл бұрын

Why can't you just react urea over calcium oxide for ammonia?

@Noah-be5rj 2 жыл бұрын

Where do you get the urea

@travismoore7849 2 жыл бұрын

@@Noah-be5rj Ebay, amazon, fertilizer stores maybe even tractor supply and so on. Urea is made from methane at many fertilizers plants. Heck it may be messy but you can get it from piss if your really hard up.

@Noah-be5rj 2 жыл бұрын

@@travismoore7849 It doesn't make sense to use industrially produced urea since it's produced using ammonia in the first place. You could extract small amounts from urine but it won't be enough to produce the amount of fertilizer we need. The only source of nitrogen which is "free" and didn't come from the haber Bosch/ biological reduction in the first place would be from the air or minerals. I don't think mining nitrogen containing minerals is a good way to get ammonia though...

@wilfriedschuler3796 Жыл бұрын

@@Noah-be5rj Of coure from CO2 and NH3. And the NH3 means Haber Bosch. So the idea is silly.

@seaplaneguy1 5 жыл бұрын

Yes, this the the direction renewables should take. My engine at 60-75% efficiency would then use the fuel instead of needing a heavy battery. This can work in airplanes too, whereas batteries are too heavy by 10-20 times.

@Mickeycuatropatas 6 жыл бұрын

Good work! Now the race to get AI to solve the problem and maybe quantum mechanics. What about ammonia synthesis via the 2-step Al2O3/AlN thermochemical cycle? Skip the catalysts altogether!

@johanv4668 Жыл бұрын

you need very high temperature for that reaction and that is a big cost of energy. so a bad thing. you need what this guy is telling you some thing cheap and simple. and you do this with a catalist.

@shantahsieh432 5 жыл бұрын

You need to make some changes. Check Avasva Solutions if you want to make it right.

@111chicane 5 жыл бұрын

Did you build solar panels following their guide? Or wind turbines? I'll tell you what, Avasva Solutions is a scam! One of many! Oh, wait! You already know that, you're with Avasva!

@AKK105 8 ай бұрын

What is avasva solutions as I can't find it in internet?