#artificial leaf

[wtf-fun-factss]

Dutch researchers have created artificial leaves that produce drugs using sunlight. In testing, they successfully produced artimensinin, which is a drug to treat malaria, and ascaridole, used against certain parasitic worms. – WTF Fun Facts

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[intelligentliving]

New And Improved Water-Splitter To Produce Hydrogen Fuel

Rice University researchers have developed a simple solar-powered device, similar to other “artificial leaf” designs, that can turn water and sunlight into hydrogen fuel. However, this new device is self-sufficient and relatively cheap to produce in comparison to previous water-splitters. How does it work? The process is made up of...

[intelligentliving]

Solar-Powered, Hydrogen Fuel Producing ‘Artificial Leaf’

Materials scientist Jun Lou and colleagues from Rice University developed an “artificial leaf” that makes hydrogen fuel endlessly with only sunlight, water, and catalytic electrodes. Lou said: The concept is broadly similar to an artificial leaf. What we have is an integrated module that turns sunlight into electricity that drives...

[intelligentliving]

This Artificial Leaf Converts Sunlight, CO2, And Water Into Synthetic Gas

A team of Cambridge researchers developed an artificial leaf that can produce syngas without releasing any CO2 in the process!

[francois-chung]

Scientists Develop Artificial Leaf That Uses Sunlight to Produce Valuable Chemicals

Researchers built a device made of perovskite and copper that mimics a green leaf.

« Previous experiments have successfully replicated photosynthesis through the use of biological materials, but this work incorporated an inorganic material, copper. While the selectivity of copper is lower than biological alternatives, the inclusion of copper presents a more durable, stable, and longer-lasting option for the artificial leaf system design. »

[uicscience]

Stackable artificial leaf uses less power than lightbulb to capture 100 times more carbon than other systems

Engineers at the University of Illinois Chicago have built a cost-effective artificial leaf that can capture carbon dioxide at rates 100 times better than current systems. Unlike other carbon capture systems, which work in labs with pure carbon dioxide from pressurized tanks, this artificial leaf works in the real world. It captures carbon dioxide from more diluted sources, like air and flue gas produced by coal-fired power plants, and releases it for use as fuel and other materials.

“Our artificial leaf system can be deployed outside the lab, where it has the potential to play a significant role in reducing greenhouse gases in the atmosphere thanks to its high rate of carbon capture, relatively low cost and moderate energy, even when compared to the best lab-based systems,” said Meenesh Singh, assistant professor of chemical engineering in the UIC College of Engineering and corresponding author on the paper.

Using a previously reported theoretical concept, the scientists modified a standard artificial leaf system with inexpensive materials to include a water gradient — a dry side and a wet side — across an electrically charged membrane.

On the dry side, an organic solvent attaches to available carbon dioxide to produce a concentration of bicarbonate, or baking soda, on the membrane. As bicarbonate builds, these negatively charged ions are pulled across the membrane toward a positively charged electrode in a water-based solution on the membrane’s wet side. The liquid solution dissolves the bicarbonate back into carbon dioxide, so it can be released and harnessed for fuel or other uses.

The electrical charge is used to speed up the transfer of bicarbonate across the membrane.

When they tested the system, which is small enough to fit in a backpack, the UIC scientists found that it had a very high flux — a rate of carbon capture compared with the surface area required for the reactions — of 3.3 millimoles per hour per 4 square centimeters. This is more than 100 times better than other systems, even though only a moderate amount of electricity (0.4 KJ/hour) was needed to power the reaction, less than the amount of energy needed for a 1 watt LED lightbulb. They calculated the cost at $145 per ton of carbon dioxide, which is in line with recommendations from the Department of Energy that cost should not exceed around $200 per ton.

“It’s particularly exciting that this real-world application of an electrodialysis-driven artificial leaf had a high flux with a small, modular surface area,” Singh said. “This means that it has the potential to be stackable, the modules can be added or subtracted to more perfectly fit the need and affordably used in homes and classrooms, not just among profitable industrial organizations. A small module of the size of a home humidifier can remove greater than 1 kilogram of CO2 per day, and four industrial electrodialysis stacks can capture greater than 300 kilograms of CO2 per hour from flue gas.”

The UIC scientists report on the design of their artificial leaf and the results of their experiments in “Migration-assisted, moisture gradient process for ultrafast, continuous CO2 capture from dilute sources at ambient conditions,” which is published in Energy & Environmental Science.  

The research is funded by a grant (DE-SC-0022321) from the U.S. Department of Energy. A patent application titled “Artificial photosynthetic systems for integrated carbon capture and conversion” has been filed by the Office of Technology Management at UIC.

Co-authors of the paper from UIC, Argonne National Laboratory, Oklahoma State University and Braskem are Aditya Prajapati, Rohan Sartape, Tomas Rojas, Naveen Dandu, Pratik Dhakal, Amey Thorat, Jiahan Xie, Ivan Bessa, Miguel Galante, Marcio Andrade, Robert Somich, Marcio Rebouças, Gus Hutras, Nathalia Diniz, Anh Ngo and Jindal Shah.

[curiositydotcom]

Visit Original Link

Curiosity Daily Podcast: An Effective Way to Correct Misinformation, an Artificial Leaf that Turns CO2 into Fuel, and the Dino Fossil Death Pose

Learn about an effective way to correct misinformation; why dinosaur fossils throw their necks back in a “death” pose; and an artificial leaf that turns atmospheric carbon dioxide into fuel.

In this podcast, Cody Gough and Ashley Hamer discuss the following stories from Curiosity.com to help you get smarter and learn something new in just a few minutes:

Why Dino Fossils Throw Their Necks Back in a 'Death Pose' — https://curiosity.im/2D3wsvd 

An 'Artificial Leaf' Turns Atmospheric Carbon Dioxide into Fuel — https://curiosity.im/37sMLji 

Additional sources:

The truth about misinformation: Research study reveals how to alter memories to protect consumers | EurekAlert! — https://www.eurekalert.org/pub_releases/2019-11/sfcp-tta110319.php 

How Stories in Memory Perpetuate the Continued Influence of False Information | Journal of Consumer Psychology — https://onlinelibrary.wiley.com/doi/epdf/10.1002/jcpy.1135?referrer_access_token=5y2ktrmAmkCeSmRC_xyQQk4keas67K9QMdWULTWMo8NgWo9DXkFeSa2F0boNG72j8VFq4-FUk9LTiG_FVXvAVWgGE1u7yvvDLV4mXXQJLXMgCswk_ClgJMKsClDpX7V1yJ6ofHuWvMZEgr7GLGmK2A%3D%3D 

Download the FREE 5-star Curiosity app for Android and iOS at https://curiosity.im/podcast-app. And Amazon smart speaker users: you can listen to our podcast as part of your Amazon Alexa Flash Briefing — just click “enable” here: https://curiosity.im/podcast-flash-briefing. 

via https://omny.fm/shows/curiosity-podcast/an-effective-way-to-correct-misinformation-an-artificial-leaf-turns-co2-into-fuel-dino-fossil-death-pose

[scitechman]

‘Artificial Leaf’ Successfully Produces Clean Gas

‘Artificial Leaf’ Successfully Produces Clean Gas

Being able to produce syngas sustainably would be a critical step in closing the global carbon cycle and establishing a sustainable chemical and fuel industry

Erwin Reisner

The carbon-neutral device sets a new benchmark in the field of solar fuels, after researchers at the University of Cambridge demonstrated that it can directly produce the gas – called syngas – in a sustainable and simple way.

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