228th ECS Meeting Student Poster Session

Meeting attendees discussing the research presented at the Student Poster Session.

Meeting attendees discussing the research presented at the Student Poster Session.

ECS established General Student Poster Session Awards in 1993 to acknowledge the excellence and diligence of our students’ work. The winners demonstrate a deep understanding of their research topic and how it relates to one or more of the fields of interest to The Electrochemical Society. At each biannual ECS meeting, awards are given to students in two categories, electrochemical science and solid state science and technology. First and second place winners receive a certificate in addition to a cash award.

The 228th ECS Meeting Student Poster Session award winners holding their certificates.

The 228th ECS Meeting Student Poster Session award winners holding their certificates.

 

For the 228th ECS Meeting in Phoenix, Arizona, the first place winners are Daiki Ito, and Xiaoxing Xia. Daiki Ito of Nagoya University, was the Solid State winner, and Xiaoxing Xia, of California Institute of Technology, was the Electrochemical Science winner. The second place winners were Kenta Machida of Kogakuin University and Subrahmanyam Goriparti of Instituto Italiano Di Technologia. Congratulations to all four winners!

In order to be eligible for the General Student Poster Session Awards, students must submit their abstracts to the Z01 General Society Student Poster Session symposium, and present their posters at the biannual meeting.

First place winner, Xiaoxing Xia accepting his certificate.

First place winner, Xiaoxing Xia accepting his certificate.

The submission deadline for the upcoming 229th ECS Meeting in San Diego is December 11, 2015.

Submit your abstract for the San Diego meeting today.

Electrochemical Impedance Spectroscopy Workshop

On October 26th, 2015, the ECS British Columbia Student Chapter held its 1st Annual Academic Workshop.

The workshop was held at the Molecular Biology and Chemistry Building located at Simon Fraser University in British Columbia, Canada. It attracted nearly 40 attendees from all different departments and disciplines at The University of British Columbia, Simon Fraser University and Tsinghua University, China. Also in attendance was the Chair of ECS Canada Section, Dr. Michael Eickerling.

The attendees were given a detailed presentation from Dr. Andrei Kulikovsky on the topic of Physical Models of Impedance Spectroscopy for PEM fuel cells. Dr. Kulikovsky visited all the way from Germany for the workshop, where he is involved in modeling fuel cell components and stacks. Within the past fifteen years, Dr. Kulikovsky has published more than seventy research papers.

In 2012, he published a one-of-a-kind book called Analytical Modeling of Fuel Cells. This book is the first monograph on modeling of polymer electrolyte, direct methanol and solid oxide fuel cells performance. Dr. Kulikovsky’s current research interests include modeling of fuel cells and catalyst layers.

Dr. Andrei Kulikovsky beginning the workshop.

Dr. Andrei Kulikovsky beginning the workshop.

Attendees keenly listening to the talk and taking notes.

Attendees keenly listening to the talk and taking notes.

Congratulations on a successful workshop!

Treating Infection with Electrical Stimulation

The electric current was able to kill almost all drug resistant bacterium within 24 hours.Image: Nature

The electric current was able to kill almost all drug resistant bacterium within 24 hours.
Image: Nature

A new alternative to traditional antibiotics is on the horizon. Through the application of electrical stimulation, researchers from Washington State University have found a way to kill drug resistant bacterium without the need for antibiotics.

“We have been doing fundamental research on this for many years, and finally, we are able to transfer it to technology,’’ says Haluk Beyenal, ECS member and co-author of the study. “It’s really exciting.’’

While these results are groundbreaking for biomedical science, the idea of treating infection through electrical stimulation is not new. Researchers have been attempting to do this for years, but have not been able to perfect the method.

Because of this, antibiotics have become the most effective and preferred treatment choice for infections. However, as antibiotic use increases, the bacteria being treated begin to adapt. Drug resistant strains then begin to form, which infect at least two million people a year in the United States alone. From those two million, about 23,000 people die annually as a direct result. With this, researchers see the need to find an alternative form of treatment for bacterial infection.

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Posted in Technology

PEFC 15 Student Poster Awards

PEFC-postersThe PhD Student Poster Awards of the PEFC 15 Symposium held at the 228th ECS Meeting in Phoenix, AZ, Oct. 2015 were presented to (pictured left to right) Shuntaro Takahashi (Tohoku University, Japan), Yuji Chino (Yamanashi University, Japan), and Peter Dudenas (Lawrence Berkeley National Lab) for their excellent scientific contributions in the field of Polymer Electrolyte Fuel Cell Research.

PEFC 15 symposium organizers, Thomas Schmidt and Hubert Gasteiger, are also pictured.

Twenty-three posters were entered. See them all here.

The fifth international Electrochemical Energy Summit recently took place during the 228th ECS Meeting. From environmental damage to economic implications to political involvement, the summit served as a forum for the top researchers in energy technology to discuss the most pressing issues in renewable energy and inspire technological solutions.

During the summit, we gathered some key speakers from energy research institutions across the U.S. to talk about challenges in energy storage, roadblocks for implementing renewables, and the role government plays in changing the energy infrastructure.

The podcast is moderated by ECS vice president Krishnan Rajeshwar, with guests David Wesolowski, The Fluid Interface Reactions, Structures and Transport (FIRST) Energy Frontier Research Center; M. Stanley Whittingham, NorthEast Center for Chemical Energy Storage (NECCES); Gary Rubloff, Nanostructures for Electrical Energy Storage (NEES) Energy Frontier Research Center; and Paul Fenter, Center for Electrochemical Energy Science (CEES).

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

Fullerenes Inhibit Infection by Ebola Virus

A new breakthrough in biotechnology could have the potential to eradicate the Ebola virus infection. Through the construction of a supermolecule made up of 13 fullerenes, a new door has been opened in the world of antiviral agents.

A team from the Universidad Complutense de Madrid/IMDEA-Nanociencia (UCM) has designed a giant fullerene molecule, covered in carbohydrates. When the team tested the new supermolecule on an artificial Ebola virus model, the researchers saw a result that stops cell infection of Ebola.

The study was led by ECS member and UCM professor Nazario Martín.

“Fullerenes are hollow cages exclusively formed by carbon atoms,” says Martín.

This from UCM:

These molecules decorated with specific carbohydrates (sugars) present affinity by the receptor used as an entry point to infect the cell and act blocking it, thus inhibiting the infection. Researchers employed an artificial Ebola virus by expressing one of its proteins, envelope protein GP1, responsible of its entry in the cells. In a model in vitro, this protein is covering a false virus, which is able of cell infection but not of replication.

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Hydrogen Meets Lithium Ion Batteries

When it comes to energy storage, hydrogen is becoming more and more promising. From hydrogen fuel cell vehicles to the “artificial leaf” to the transformation of waste heat into hydrogen, researchers are looking to hydrogen for answers to the growing demand for energy storage.

At the Lawrence Livermore National Laboratory (LLNL), researchers are using hydrogen to make lithium ion batteries operate longer and have faster transport rates.

In a response to the need for higher performance batteries, the researchers began by looking for a way to achieve better capacity, voltage, and energy density. Those qualities are primarily determined by the binding between lithium ions and electrode material. Small changes to the structure and chemistry of the electrode can mean big things for the qualities of the lithium ion battery.

The research team from LLNL discovered that by subtly changing the electrode, treating it with hydrogen, lithium ion batteries could have higher capacities and faster transport levels.

“These findings provide qualitative insights in helping the design of graphene-based materials for high-power electrodes,” said Morris Wang, an LLNL materials scientist and co-author of the paper.

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Disingenuous Scientometrics

The following is an article from the latest issue of Interface by co-editor Vijay Ramani.

The precise definition of the “impact” of a research product (e.g. publication) varies significantly among disciplines, and even among individuals within a given discipline. While some may recognize scholarly impact as paramount, others may emphasize the economic impact, the broad societal impact, or some combination therein. Given that the timeframe across which said impact is assessed can also vary substantially, it is safe to say that no formula exists that will yield a standardized and reproducible measure. The difficulties inherent in truly assessing research impact appear to be matched only by the convenience of the numerous flawed metrics that are currently in vogue among those doing the assessing.

Needless to say, many of these metrics are used outside the context for which they were originally developed. In using these measures, we are essentially sacrificing rigor and accuracy in favor of convenience (alas, a tradeoff that far too many in the community are willing to make!).

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Breakthrough in Polishing of Silicon Carbide

Microscopic interferometric images and slope images of SiC surface (a) before (PV: 23.040 nm, Ra: 1.473 nm, RMS: 1.885 nm) and (b) after (PV: 2.070 nm, Ra: 0.198 nm, RMS: 0.247 nm) polishing with soda-lime glass plate.

Microscopic interferometric images and slope images of SiC surface (a) before (PV: 23.040 nm, Ra: 1.473 nm, RMS: 1.885 nm) and (b) after (PV:
2.070 nm, Ra: 0.198 nm, RMS: 0.247 nm) polishing with soda-lime glass plate.

Guest post by Jennifer Bardwell, Technical Editor of the ECS Journal of Solid State Science and Technology (JSS).

This paper, from Kumamoto University in Japan, concerns a technique for abrasive-free polishing of silicon carbide (SiC). This topic is timely as SiC is an important material for wide bandgap electronics, both in its own right, and as a substrate for gallium nitride electronics. The reviewers note that:

“Defect free polishing of SiC surface has high significance” and that “The results are amazing”

In the words of the abstract: “The experimental results showed that an oxide layer was formed on the SiC surface as a result of the chemical reaction between the interfaces of the synthetic SiO2 glass plate and the SiC substrate. This generated oxide layer was effectively removed by polishing with the soda-lime SiO2 glass plate, resulting in an atomically smooth SiC surface with a root mean square roughness of less than 0.1 nm for 1.5 h. Obtained experimental results indicate that the component materials, temperature and water adsorptive property of the soda-lime SiO2 glass play an important role in the removal of the tribochemically generated layer on the SiC surface during this polishing.”

Read the paper.

Some people strive to continue family tradition, while others prefer to cut their own path. Patrick Linford, grandson of prestigious electrochemist Henry Linford, happens to be stepping into his grandfather’s shoes merely by coincidence.

“If you’d rewind my life to last year, I had no idea what electrochemistry actually was,” says Linford.

Linford, current graduate student at the Massachusetts Institute of Technology (MIT) and U.S. Army Officer, was always fascinated by science and the technical side of things. Despite Linford’s grandfather dying a few years before his birth, their academic and career paths have many similarities.

More Sustainable Energy

Currently, Linford is conducting research in alternative energy—specifically, thermogalvanic batteries to power wireless sensors using waste heat.

“This work has tremendous applications in both the military realm and on the civilian side,” says Linford.

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