Nav: Home

Graphene from soybeans

February 14, 2017

A breakthrough by CSIRO-led scientists has made the world's strongest material more commercially viable, thanks to the humble soybean.

Graphene is a carbon material that is one atom thick.

Its thin composition and high conductivity means it is used in applications ranging from miniaturised electronics to biomedical devices.

These properties also enable thinner wire connections; providing extensive benefits for computers, solar panels, batteries, sensors and other devices.

Until now, the high cost of graphene production has been the major roadblock in its commercialisation.

Previously, graphene was grown in a highly-controlled environment with explosive compressed gases, requiring long hours of operation at high temperatures and extensive vacuum processing.

CSIRO scientists have developed a novel "GraphAir" technology which eliminates the need for such a highly-controlled environment.

The technology grows graphene film in ambient air with a natural precursor, making its production faster and simpler.

"This ambient-air process for graphene fabrication is fast, simple, safe, potentially scalable, and integration-friendly," CSIRO scientist Dr Zhao Jun Han, co-author of the paper published today in Nature Communications said.

"Our unique technology is expected to reduce the cost of graphene production and improve the uptake in new applications."

GraphAir transforms soybean oil - a renewable, natural material - into graphene films in a single step.

"Our GraphAir technology results in good and transformable graphene properties, comparable to graphene made by conventional methods," CSIRO scientist and co-author of the study Dr Dong Han Seo said.

With heat, soybean oil breaks down into a range of carbon building units that are essential for the synthesis of graphene.

The team also transformed other types of renewable and even waste oil, such as those leftover from barbecues or cooking, into graphene films.

"We can now recycle waste oils that would have otherwise been discarded and transform them into something useful," Dr Seo said.

The potential applications of graphene include water filtration and purification, renewable energy, sensors, personalised healthcare and medicine, to name a few.

Graphene has excellent electronic, mechanical, thermal and optical properties as well.

Its uses range from improving battery performance in energy devices, to cheaper solar panels.

CSIRO are looking to partner with industry to find new uses for graphene.

Researchers from The University of Sydney, University of Technology Sydney and The Queensland University of Technology also contributed to this work.
-end-


CSIRO Australia

Related Graphene Articles:

New chemical method could revolutionize graphene
University of Illinois at Chicago scientists have discovered a new chemical method that enables graphene to be incorporated into a wide range of applications while maintaining its ultra-fast electronics.
Searching beyond graphene for new wonder materials
Graphene, the two-dimensional, ultra lightweight and super-strong carbon film, has been hailed as a wonder material since its discovery in 2004.
New method of characterizing graphene
Scientists have developed a new method of characterizing graphene's properties without applying disruptive electrical contacts, allowing them to investigate both the resistance and quantum capacitance of graphene and other two-dimensional materials.
Chemically tailored graphene
Graphene is considered as one of the most promising new materials.
Beyond graphene: Advances make reduced graphene oxide electronics feasible
Researchers have developed a technique for converting positively charged (p-type) reduced graphene oxide (rGO) into negatively charged (n-type) rGO, creating a layered material that can be used to develop rGO-based transistors for use in electronic devices.
The Graphene 2017 Conference connects Barcelona with the international graphene-based industry
This prestigious Conference to be held at the Barcelona International Convention Centre (March 28-31) aims to bring together academia and industry to integrate new graphene technologies into practical applications.
Graphene from soybeans
A breakthrough by CSIRO-led scientists has made the world's strongest material more commercially viable, thanks to the humble soybean.
First use of graphene to detect cancer cells
By interfacing brain cells onto graphene, researchers at the University of Illinois at Chicago have shown they can differentiate a single hyperactive cancerous cell from a normal cell, pointing the way to developing a simple, noninvasive tool for early cancer diagnosis.
Development of graphene microwave photodetector
DGIST developed cryogenic microwave photodetector which is able to detect 100,000 times smaller light energy compared to the existing photedetectors.
Adding hydrogen to graphene
IBS researchers report a fundamental study of how graphene is hydrogenated.

Related Graphene Reading:

Graphene: The Superstrong, Superthin, and Superversatile Material That Will Revolutionize the World
by Les Johnson (Author), Joseph E. Meany (Author)

The Graphene Handbook (2018 edition)
by Ron Mertens (Author)

The Chemistry Book: From Gunpowder to Graphene, 250 Milestones in the History of Chemistry (Sterling Milestones)
by Derek B Lowe (Author)

The Graphene Revolution: The weird science of the ultra-thin (Hot Science)
by Icon Books Ltd

Graphene: An Introduction to the Fundamentals and Industrial Applications (Advanced Material Series)
by Madhuri Sharon (Editor), Maheshwar Sharon (Editor), Ashutosh Tiwari (Editor), Hisanori Shinohara (Editor)

Graphene: Fabrication, Characterizations, Properties and Applications
by Hongwei Zhu (Editor)

Graphene: Fundamentals, Devices, and Applications
by Serhii Shafraniuk (Author)

Graphene: A New Paradigm in Condensed Matter and Device Physics
by E. L. Wolf (Author)

Graphene: Energy Storage and Conversion Applications (Electrochemical Energy Storage and Conversion)
by Zhaoping Liu (Author), Xufeng Zhou (Author)

Graphene: Fundamentals and emergent applications
by Jamie H. Warner (Author), Franziska Schaffel (Author), Mark Rummeli (Author), Alicja Bachmatiuk (Author)

Best Science Podcasts 2018

We have hand picked the best science podcasts for 2018. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Circular
We're told if the economy is growing, and if we keep producing, that's a good thing. But at what cost? This hour, TED speakers explore circular systems that regenerate and re-use what we already have. Guests include economist Kate Raworth, environmental activist Tristram Stuart, landscape architect Kate Orff, entrepreneur David Katz, and graphic designer Jessi Arrington.
Now Playing: Science for the People

#504 The Art of Logic
How can mathematics help us have better arguments? This week we spend the hour with "The Art of Logic in an Illogical World" author, mathematician Eugenia Cheng, as she makes her case that the logic of mathematics can combine with emotional resonance to allow us to have better debates and arguments. Along the way we learn a lot about rigorous logic using arguments you're probably having every day, while also learning a lot about our own underlying beliefs and assumptions.