Image: AlexanderAIUS

Graphene is at it again, outperforming all known materials (including superconductors) in a recent study testing the transmission of high frequency electrical signals.

The researchers found that when the electrical signals pass through graphene, none of the energy is lost – opening the door to a new realm of electrical transmission.

This from the University of Plymouth:

And since graphene lacks band-gap, which allows electrical signals to be switched on and off using silicon in digital electronics, academics say it seems most applicable for applications ranging from next generation high-speed transistors and amplifiers for mobile phones and satellite communications to ultra-sensitive biological sensors.

Read the full article.

“An accurate understanding of the electromagnetic properties of graphene over a broad range of frequencies (from direct current to over 10 GHz) has been an important quest for several groups around the world,” said Shakil Awan, leader of the study. “Initial measurements gave conflicting results with theory because graphene’s intrinsic properties are often masked by much larger interfering signals from the supporting substrate, metallic contacts and measurement probes. Our results for the first time not only confirm the theoretical properties of graphene but also open up many new applications of the material in high-speed electronics and bio-sensing.”

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With a robust career in academia, Daniel Scherson has touched many aspects of science and worked with many notable pillars of electrochemistry. From his work on nonlinear, non-equilibrium thermodynamics with Joel Keizer to his work with Heniz Gerischer and Dieter Kolb at the Fritz Haber Institute — Scherson’s career has been shaped by some of the leaders in the field.

He joined Case Western Reserve University in 1983, where his research focuses on bettering device such a fuel cells, batteries, and electrosynthetic reactors. Scherson has been featured by many for the development of the “cyborg cockroach” that produces energy.

Listen to the podcast and download this episode and others for free through the iTunes Store, SoundCloud, or our RSS Feed. You can also find us on Stitcher.

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An interdisciplinary team, including 32 year ECS member Stuart Licht and ECS student member Matthew Lefler, has developed a way to make electric vehicles that are not only carbon neutral, but carbon negative – capable of reducing the amount of atmospheric carbon dioxide as they operate by transforming the greenhouse gas.

By replacing the graphite electrodes that are currently being used in the development of lithium-ion batteries for electric cars with carbon materials recovered from the atmosphere, the researchers have been able to develop a recipe for converting collected carbon dioxide into batteries.

This from Vanderbilt University:

The team adapted a solar-powered process that converts carbon dioxide into carbon so that it produces carbon nanotubes and demonstrated that the nanotubes can be incorporated into both lithium-ion batteries like those used in electric vehicles and electronic devices and low-cost sodium-ion batteries under development for large-scale applications, such as the electric grid.

Read the full article.

The research is not the first time scientists have shown progress in collecting and converting harmful greenhouse gases from the environment.

Typically, carbon dioxide conversion revolves around transforming the gas into low-value fuels such as methanol. These conversions often do not justify the costs.

(MORE: Read “Carbon Nanotubes Produced from Ambient Carbon Dioxide for Environmentally Sustainable Lithium-Ion and Sodium-Ion Battery Anodes.“)

However, the new process produces better batteries that are not only expected to be efficient, but also cost effective.

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Looking to save on electricity? Why not use bioluminescent bacteria to light the way?

Innovative start-up Glowee is looking to do just that to illuminate the streets of Paris. By using bacteria found in squid, Glowee is producing lights that consist of transparent gases filled with a gel containing the bioluminescent bacteria alongside the sugars and oxygen they need to survive.

Currently, the company is looking to increase lifespan and efficiency before implementing the technology.

MIT researcher have developed the first steps to creating the thinnest, lightest solar cell ever made.

Through a unique fabrication method, the researchers are moving toward the development of a solar cell so thin it could blow away. Instead of a solar cell’s typical makeup, the MIT researchers have opted for a unique fabrication of creating each layer at the same time.

This from Popular Science:

Solar cells are typically made up of layers of photovoltaic materials and a substrate, such as glass or plastic. Instead of the usual method of fabricating each layer separately, and then depositing the layers onto the substrate, the MIT researchers made all three parts of their solar cell (the cell, the supportive substrate, and the protective coating) at the same time, a method that cuts down on performance-harming contaminants. In the demonstration, the substrate and coating are made from parylene, which is a flexible polymer, and the component that absorbs light was made from dibutyl phthalate (DBP). The researchers note that the solar cell could be made from a number of material combinations, including perovskite, and it could be added to a variety of surfaces such as fabric or paper.

Read the full article.

To put the thinness of the solar cell in perspective, it is approximately 1/50th the thickness of a strand of hair. The light weight means that its power-to-weight ratio is particularly high, with an efficiency output of about 6 watts per gram (400 times higher than silicon-based solar cells).

The final trial for the researcher will be to translate the lab work to the real world, making it scalable and practical for commercial use.

Researchers have found a way to use rust to build a solar-powered battery.
Image: Diego Torres Silvestre

What happens when corrosion meets energy? For researchers at Stanford University, the marriage of those two uniquely electrochemical topics could yield an answer to large-scale solar power storage.

The question of how to store solar power when the sun goes down has been on the forefront of scientific discussion. While electrochemical energy storage devices exist, they are typically either too expensive to work on a large-scale or not efficient enough.

Building a solar-powered battery

New research shows that metal oxides, such as rust, can be fashioned into solar cells capable of splitting water into hydrogen and oxygen. The research could be looked at revelatory, especially when considering large-scale storage solutions, because of its novel heat attributes.

While we knew the promising solar power potential of metal oxides before, we believed that the efficiency of cells crafted from these materials would be very low. The new study, however, disproves that theory.

The team showed that as the cells grow hotter, efficiency levels increase. This is a huge benefit when it comes to large-scale, solar energy conversion and it the polar opposite of the traditional silicon solar cell.

“We’ve shown that inexpensive, abundant, and readily processed metal oxides could become better producers of electricity than was previously supposed,” says William Chueh, an assistant professor of materials science and engineering.

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ECS is excited to announce a volunteer program for ECS student members at the 229th ECS Meeting in San Diego, CA, May 29-June 2, 2016. This program was first piloted in the fall at the ECS meeting in Phoenix, AZ.

As a student aide, you will work closely with the ECS staff and gain first-hand experience in what it takes to execute an ECS biannual meeting. Take advantage of the opportunity to network and engage with meeting attendees, symposium organizers and ECS staff while learning how registration operates, technical sessions run and how major meeting programs are facilitated.

Interested in participating within this program? Click here to fill out your application today!

Please note, the deadline to apply is March 11th. The selected candidates will be notified the week of March 14th.

Benefits include a unique behind the scenes experience, networking opportunities, a FREE San Diego meeting registration, an ECS shirt, and a certificate of participation! For more information or questions regarding the application process, please contact membership services intern, Abby Hosonitz, at abigail.hosonitz@electrochem.org.

We look forward to seeing you in San Diego!

Globally, carbon dioxide is the number one contributor to harmful greenhouse gas emissions. These emissions accelerate climate change, leading to such devastating effects as rising sea levels that can dislocate families and radical local climates that hurt food production levels.

But what if we could turn those harmful emissions into useable fuels through a simple, one-step process?

Researchers have proven that through a process combining concentrated light, heat, and high pressure, carbon dioxide and water could be directly converted into usable liquid hydrocarbon fuels.

Not only would this effort offer some relief in the energy infrastructure, it would also aid efforts against climate change by removing carbon dioxide from the atmosphere.

“Our process also has an important advantage over battery or gaseous-hydrogen powered vehicle technologies as many of the hydrocarbon products from our reaction are exactly what we use in cars, trucks and planes, so there would be no need to change the current fuel distribution system,“ said Frederick MacDonnell, co-principal investigator of the project.

The corresponding paper was published in the Proceedings of the National Academy of Sciences.

“We are the first to use both light and heat to synthesize liquid hydrocarbons in a single stage reactor from carbon dioxide and water,” said Brian Dennis, co-principal investigator of the project. “Concentrated light drives the photochemical reaction, which generates high-energy intermediates and heat to drive thermochemical carbon-chain-forming reactions, thus producing hydrocarbons in a single-step process.”

Up until the 1948, the lemon-lime soda 7-Up contained lithium salts, a substance most commonly known for its medical qualities used in the treatment of major depressive disorders.

While the additive has long since been removed from 7-Up, the scientists from the YouTube channel Periodic Videos thought it would be interesting to drop a piece of lithium into the current day recipe for the soda.

Initially, the results were as expected: nothing special. But after a few more seconds, the solution began transforming from its clear, bubbly state to a dark, sludgy brown. Watch as Sir Martyn Poliakoff explains the unexpected phenomena.