Nanoflower

A nanoflower, in chemistry, refers to a compound of certain elements that results in formations which in microscopic view resemble flowers or, in some cases, trees that are called nanobouquets or nanotrees.[1] These formations are nanometers long and thick so they can only be observed using electron microscopy.[2]

Catalytic nanomaterial with a flower-shaped structure

Production

Several ways to produce nanoflowers are known:

Nanomeadow

In supercapacitors, energy is stored because the electrodes are coated with a porous material that soaks up ions like a sponge, usually activated carbon. Nanomeadow supercapacitors store ions in manganese oxide (MnO), a material with a much greater capacity for ions than activated carbon.[4]

Scientists at Research Institute of Chemical Defence (Beijing, China) and Peking University created a nanomeadow of microscopic structures, fuzzy flowers of MnO each about 100 nanometres across on a field of messy carbon nanotube grass grown on a tantalum metal foil. Nanomeadows perform 10 times better than MnO alone and can store twice as much charge as the carbon-based electrodes in existing ultracapacitors.[4]

gollark: That sounds implausible.
gollark: Purposes only.
gollark: They could boot people doing actually useful stuff instead of you, and they can't know how time-consuming a task is without running it.
gollark: Great!
gollark: Is it ethical to use Google Colab for dubiously useful ML tasks? I trained a GPT-2 instance on some of my Discord messages.

See also

Footnotes
  1. "Silicon carbide nanoflowers bloom - nanotechweb.org". nanotechweb.org. Retrieved 2008-06-18.
  2. Kalaugher, Liz. "Nanoflowers: Science Videos - Science News - ScienCentral". www.sciencentral.com. Archived from the original on 2008-08-03. Retrieved 2008-06-18.
  3. Kalaugher, Liz. "Nanoflowers blossom in place of nanotubes - nanotechweb.org". nanotechweb.org. Archived from the original on 2016-03-03. Retrieved 2008-06-18.
  4. Colin Barras (17 September 2008). "Can nanoscopic meadows drive electric cars forward?". New Scientist.

References
  • Summary of the 2nd E.E.F. (Enosi Ellinon Fysikon, Hellenic Science Society) Conference in Texnopolis Athens, Greece


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.