Making Rusty Polymers for Energy Storage
April 2, 2018 | Washington University in St. LouisEstimated reading time: 1 minute
It’s called a nanoflower, but if you could brush your cheek against its microscopic petals, you would find them cool, hard and … rusty.
Image caption: This colored image depicts a poly (3,4-ethylenedioxythiophene) (PEDOT) nanoflower synthesized via hydrolysis-assisted vapor-phase polymerization using ethanol as a solvent. The blue color represents PEDOT, and the red color represents iron oxide species that serve as a scaffold and assist in the growth of PEDOT nanostructures in situ during synthesis. (Image: D’Arcy lab/Washington University)
Common rust forms the inner skeleton of these lovely and intricate nanostructures, while their outer layer is a kind of plastic.
Researchers at Washington University in St. Louis have developed a straightforward way to make this type of conducting polymer with high surface area that is likely to be useful for energy transfer and storage applications.
“Rust will always pose a challenge in Earth’s humid and oxygenated atmosphere,” said Julio M. D’Arcy, assistant professor of chemistry in Arts & Sciences and a member of the university’s Institute of Materials Science and Engineering. “Corrosion makes structures fragile and decreases the ability of components to function properly. But in our lab, we’ve learned how to control the growth of rust so that it can serve an important purpose.”
Conducting polymers rely on a combination of organic and inorganic materials — usually a core of metal and a shell of plastic — made in a single batch.
D’Arcy and his team reported on a new technique that combines vapor-phase synthesis with solution-based hydrolysis to build three-dimensional nanoflowers, two-dimensional nanoplates and one-dimensional nanofibers.
This work advances the understanding of the chemical mechanisms involved with depositing the rust and forming the polymer, which will allow scientists to more easily manipulate and engineer the structures of the materials they make.
“As chemists, my students and I are fascinated by conducting polymers because we can control their structure during synthesis,” D’Arcy said. “How much electricity the polymers conduct is a function of their chemical pathway and their number of charge carriers, both of which can be optimized during synthesis.”
As for the nanoflowers, D’Arcy said he will be sowing some new seeds soon. There are 16 stable phases of rust, all with different morphologies at the nanoscale — enough for a whole rusted garden.
Suggested Items
LQDX Divests Aluminum Soldering Business - Mina™ - to Taiyo America Inc.
05/02/2024 | PRNewswireLQDX, formerly known as Averatek Corp., developer of high-performance materials for advanced semiconductor manufacturing, today announced that it has divested its aluminum soldering business – known as MinaTM – to Taiyo America Inc., a global market leader in advanced electronic materials.
Indium Corporation Expert to Present on Pb-Free Solder for Die-Attach in Discrete Power Applications
04/30/2024 | Indium CorporationIndium Corporation Product Manager – Semiconductor Dean Payne will present at the Advanced Packaging for Power Electronics conference, hosted by IMAPS, held May 8-9 in Woburn, Massachusetts, USA.
Real Time with... IPC APEX EXPO 2024: Adhesive Materials and Equipment Update with Dymax
05/01/2024 | Real Time with...IPC APEX EXPOVirginia Hogan, global business development manager at Dymax, discusses adhesive materials, dispensing and curing equipment, a new, high-reliability conformal coating, and various materials and dispensing methods.
Real Time with... IPC APEX EXPO 2024: Sustainability in the Industry
04/26/2024 | Real Time with...IPC APEX EXPOGuest Editor Henry Crandall and Chris Nash of Indium Corporation discuss the company's 90th anniversary and its focus on sustainability. They focus on the benefits of sustainable materials, their compatibility, and value propositions. The conversation also highlights how Durafuse LT technology's role in reducing reflow temperatures is leading to significant cost and energy savings. Nash also touches on downstream sustainability efforts such as using recycled materials for packaging.
SMC Korea 2024 to Highlight Semiconductor Materials Trends and Innovations on Industry’s Path to $1 Trillion
04/24/2024 | SEMIWith Korea a major consumer of semiconductor materials and advanced materials a key driver of innovation on the industry’s path to $1 trillion, industry leaders and experts will gather at SMC (Strategic Materials Conference) Korea 2024 on May 29 at the Suwon Convention Center in Gyeonggi-do, South Korea to provide insights into the latest materials developments and trends. Registration is open.