Your source for the latest research news

Saturday, 25 January 2020

Researchers find way to harness the entire visible spectrum for energy production



For the very first time, scientists have demonstrated that it is possible to collect energy from the entire visible spectrum of sunlight and transform it quickly and efficiently into hydrogen. In fact, they have developed a single molecule that can efficiently absorb sunlight and also act as a catalyst to transform solar energy into hydrogen. A clean alternative to fossil fuels (for, in particular, motor vehicles).

Please support by Sharing the article and also by visiting the ads in the post, your little click can help us to keep posting the beneficial Stuff, please leave a comment if you have any suggestions:
And Please follow us on Twitter  and Facebook
Thank you 😊

This new molecule collects energy from the entire visible spectrum and can harness more than 50% more solar energy than current solar cells. This discovery could well help humanity move from fossil fuels to energy sources that do not contribute to climate change.

“  The idea is to use the photons from the sun and transform them into hydrogen. Simply put, we collect energy from sunlight and store it in chemical bonds so it can be used later, "said Claudia Turro, professor of chemistry and director of the center at Ohio State University for chemical and biophysical dynamics (and who also directed this research). Namely, that photons are the elementary particles of light, and contain a certain amount of energy.



Thanks to this study, for the very first time, it has been demonstrated that it is possible to collect energy from the entire visible spectrum of sunlight, including low energy infrared ( part of the solar spectrum that had previously been difficult to collect) and transform it quickly and efficiently into hydrogen.

Hydrogen is a clean fuel, which means that it does not produce carbon or carbon dioxide as a by-product of its use. "  What makes it work is that the system is able to put the molecule in an excited state, where it absorbs the photon and is able to store two electrons to produce hydrogen. This storage of two electrons in a single molecule, as well as this use to produce hydrogen, is unprecedented,  ”said Turro.

Indeed, transforming the Sun's energy into fuel, for example to power a vehicle, first requires an energy collection mechanism. Then, this energy can be converted into fuel. The conversion requires a catalyst. In short: this is a device which accelerates a chemical reaction allowing the conversion of solar energy into a usable energy vector (in this case hydrogen).

Most of the previous attempts to collect solar energy and transform it into hydrogen have focused on higher energy wavelengths (like ultraviolet, for example). The latter have also relied on catalysts always involving two molecules (or more), which exchange electrons (energy) to produce fuel from solar energy. But a large part of this energy is lost in the exchange, which makes these multimolecular systems less efficient.

In addition, the few other attempts that relied on a single molecule catalyst were also ineffective "partly because they did not collect energy from the entire visible spectrum of the sun, and also because the catalysts themselves degraded quickly, "said Turro.


A system 25 times more efficient than current technologies

Now, Turro's research team has discovered how to make a catalyst from a single molecule, a form of rhodium (a chemical element), which means less energy is lost. The researchers also understood how to collect energy from the near infrared to the ultraviolet, more than the entire visible spectrum.

According to the researchers, the system they designed is nearly 25 times more efficient with low-energy near-infrared light than single-molecule systems operating with ultraviolet photons.

As part of this study, the researchers used LEDs to illuminate acid solutions containing the active molecule, and discovered that hydrogen was produced.

" I think the reason it works is because the molecule is difficult to oxidize,  " says Turro. "  And we have to have renewable energy. Just imagine, if we could use sunlight for our energy needs instead of coal, gas or oil, what we could do to fight climate change, ”added Turro.

But before the research team's results can be applied in the real world, "there is still a lot of work to do," admits Turro. Indeed, rhodium is a rare metal and the production of catalysts using it is expensive. The team is therefore working to improve this molecule to produce hydrogen over a longer period of time and to develop a catalyst exploiting less rare elements.




Bibliography:

Article: Single-chromophore single-molecule photocatalyst for the production of dihydrogen using low-energy light

T. J. Whittemore, C. Xue, J. Huang, J. C. Gallucci & C. Turro

Nature Chemistry (2020)

https://doi.org/10.1038/s41557-019-0397-4

3 comments:

  1. Hello everyone , good day , i just want to share a review on what happened to me and my uncle last month . when i thought i have seen it all but Dr Sambo let me know that there is more to life . i had Herpes Simplest Virus HSV2 and my uncle was tested HIV positive . we spent a lot trying to get cured ,until i contacted Dr Sambo for a help . just within 21 days his herbal medicine cured me and my uncle , its still unbelievable to me and other member of my family .but I'm cured and my uncle is now tested HIV negative just after 21day . this is a miracle. i do not know how else i can appreciate Dr Sambo for his works , other than to share my review for others to see Email: (divinespellhome@gmail.com) Dr. Sambo WhatsApp  him now +2348145810121  you can also visit his  website http://DrSambo443.website2.me God bless Dr. Sambo for his good work...    

    ReplyDelete
  2. Hello everyone , good day , i just want to share a review on what happened to me and my uncle last month . when i thought i have seen it all but Dr Sambo let me know that there is more to life . i had Herpes Simplest Virus HSV2 and my uncle was tested HIV positive . we spent a lot trying to get cured ,until i contacted Dr Sambo for a help . just within 21 days his herbal medicine cured me and my uncle , its still unbelievable to me and other member of my family .but I'm cured and my uncle is now tested HIV negative just after 21day . this is a miracle. i do not know how else i can appreciate Dr Sambo for his works , other than to share my review for others to see Email: (divinespellhome@gmail.com) Dr. Sambo WhatsApp  him now +2348145810121  you can also visit his  website http://DrSambo443.website2.me God bless Dr. Sambo for his good work...    

    ReplyDelete
  3. I have never seen anything that has worked so effective like Chief Dr Lucky spell that was able to bring my lover back to me within 48 hours. I run into luck on that beautiful day that i found Chief Dr Lucky contact details on an article that someone wrote about Chief Dr Lucky i had no choice that to contact and trust him. Chief Dr Lucky shocked me because i was not expecting to get a positive result as fast as that because the way my boyfriend left me was terrible, he lift me for my friend and i was told by Chief Dr Lucky that she used a black magic spell on him. Since the return of my lover i have made a promise that i will write out Chief Dr Luck on the internet and his contact details are +2348132777335 and via email: Chiefdrlucky@gmail.com . His website: http://chiefdrluckysolutionhome.website2.me/

    ReplyDelete

About us

we are bunch of Guys who Love Science and Technology, we are aware that our site looks junk but we don't have enough money to make our website much better,Your support will keep us growing, Please keep Sharing and join us on facebook and twitter. Thank you for reading our articles, Please leave comments if you feel anything, Have a Nice Life