this post was submitted on 15 Sep 2023
98 points (92.2% liked)

Technology

72697 readers
1797 users here now

This is a most excellent place for technology news and articles.

Our Rules

  1. Follow the lemmy.world rules.
  2. Only tech related news or articles.
  3. Be excellent to each other!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, this includes using AI responses and summaries. To ask if your bot can be added please contact a mod.
  9. Check for duplicates before posting, duplicates may be removed
  10. Accounts 7 days and younger will have their posts automatically removed.

Approved Bots

founded 2 years ago
MODERATORS
L3s@lemmy.world
enu@lemmy.world
technopagan@lemmy.world
L4s@lemmy.world
L3s@hackingne.ws
L4s@hackingne.ws
98
Making hydrogen from waste plastic could pay for itself (techxplore.com)
submitted 2 years ago by bernieecclestoned@sh.itjust.works to c/technology@lemmy.world
18 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[โ€“] TropicalDingdong@lemmy.world 7 points 2 years ago (1 children)

How much energy is used to do so and how much CO2 is released as part of the process?

[โ€“] bernieecclestoned@sh.itjust.works 2 points 2 years ago* (last edited 2 years ago)

Doesn't say, but if the electricity used is from renewables then it's irrelevant, as it can potentially produce graphene at 5% of the current price

Found this re co2

Compared to commercial methods for carbon nanotube production that are being used right now, ours uses about 90% less energy and generates 90%-94% less carbon dioxide," Wyss said.

https://phys.org/news/2023-02-joule-technique-efficiently-would-be-pollution.html

If they're making graphene and hydrogen then there can't be much left over can there?