Science News · @sciencenews
66 followers · 527 posts · Server idw-online.social
· @idw_online
443 followers · 9571 posts · Server idw-online.social

A huge milestone and a beautiful result of the ongoing interaction of experimental and computational research at Münster university: "Light Enabled Deracemization of Cyclopropanes by Al Salen Photocatalysis" is published in

@gilmourlab

nature.com/articles/s41586-023

#nature #photocatalysis #compchem #chemistry #organicchemistry

Last updated 1 year ago

Beilstein-Institut · @BeilsteinInstitut
267 followers · 17 posts · Server hessen.social

The thematic issue " for & applications in environmental remediation & " is complete ✔️

Check out the editorial & DL the complete issue PDF with just one click 👉 beilstein-journals.org/bjnano/

Many thanks to our guest editors Viet Van Pham and Wee-Jun Ong!

💎🔓

#nanomaterials #photocatalysis #renewableenergy #diamondopenaccess #bjnano

Last updated 1 year ago

Mathias Micheel · @buerviper
150 followers · 635 posts · Server physchem.science

Super happy about our publication on the length-dependence of electron transfer in a semiconductor-metal photocatalytic system - now out in Journal of Chemical Physics! Also, open access. :-)
aip.scitation.org/doi/10.1063/

#photocatalysis #semiconductor #chemiverse #physicalchemistry #spectroscopy

Last updated 2 years ago

Mathias Micheel · @buerviper
149 followers · 585 posts · Server physchem.science

New publication alert: we functionalized thin CdSe quantum dot films with hydrogenase mimics for photocatalytic hydrogen production!

Our approach is simple and every compound can directly be used as they are from synthesis, while the system's efficiency still competes with state of the art systems! pubs.acs.org/doi/10.1021/acsam

#photocatalysis #solarfuels #quantumdots #photochemistry #hydrogen

Last updated 2 years ago

Marc Kielmann · @mkielmann
26 followers · 9 posts · Server mstdn.science

Captivating talk by Burkhard König on redox-neutral . Now happening at KCC Research Conference 2023.

#photocatalysis #kaust

Last updated 2 years ago

Mathias Micheel · @buerviper
130 followers · 247 posts · Server physchem.science

PREPRINT ALERT 🚨

Electron transfer from photoexcited CdSe@CdS dot-in-rod nanostructures to metal particles is an important step in light-driven catalysis for H2 production. But how does the photogenerated electron migrate to the metal tip?

Read our results obtained via transient absorption spectroscopy on ChemRXiv!

chemrxiv.org/engage/chemrxiv/a

#preprint #semiconductors #electrontransfer #photocatalysis #chemrxiv

Last updated 2 years ago

Sandy Lawrence · @swlawrence
14 followers · 41 posts · Server aus.social

AAAS: "Sun-powered water splitter produces unprecedented levels of green energy" Scientists have long tried to replicate photosynthesis by using sunlight to split water molecules, but very energetic photons are needed to cut the bonds between oxygen + hydrogen atoms. "Shorter wave, and thus more energetic, photons from ultraviolet and visible light can accomplish the task." But about half of Sun's photons are infrared photons, which ordinarily are not energetic enough. A 'monolithic photocatalytic cell' simply dunks a light-absorbing semiconductor in water, which absorbs sunlight + transfers electrons to nanosize metal catalysts 'peppered' on its surface. Early generations were only about 3% efficient. A benchmark of 10% is felt to be necessary for commercialization. Researchers in Michigan used a lens to focus the sunlight 100-fold, + also raised the water temperature to 70ºC, to help prevent the hydrogen + oxygen atoms from simply reforming water molecules. The combination allowed conversion of 9.2% of sunlight. Green hydrogen could power vehicles, industrial furnaces + provide electricity for the grid. The kicker? This process works with seawater as well. Pretty much inexhaustible.

#photocatalysis #energy #climatechange

Last updated 2 years ago

Mathias Micheel · @buerviper
53 followers · 129 posts · Server mastodon.green

@jesswade Lilac Amirav is also working on semiconductor nanoparticles for on a very high level. Ashton Kutcher recently invested millions in her startup for solar-to-fuel conversion! amiravlab.com/

#photocatalysis

Last updated 2 years ago

Mathias Micheel · @buerviper
53 followers · 129 posts · Server mastodon.green

@jesswade and I'm very much biased since she's still my boss, but Maria Wächtler's work on semiconductor nanoparticles for rocks😋 chemie.uni-kl.de/en/ag-waechtl

#photocatalysis

Last updated 2 years ago