Harnessing Energy from Small Bending Motions

When we think of energy, often large-scale grid storage or sleek, highly-efficient lithium ion batteries that power most of our electronics are the first things that come to mind. However, for applications such as biomedical or environmental monitoring devices, there could be an alternative way to harness energy without the use of pricy technology.

Researchers have discovered the through harnessing the energy crated by small motions, a small but unlimited power supply could be generated. With electrochemical principals as the backbone of the study, MIT researchers have developed a new way to harvest energy from natural motions and activates, including something as simple as walking.

The system is based on the slight bending of a sandwich of metal and polymer sheets.

This from MIT:

Most previously designed devices for harnessing small motions have been based on the triboelectric effect (essentially friction, like rubbing a balloon against a wool sweater) or piezoelectrics (crystals that produce a small voltage when bent or compressed). These work well for high-frequency sources of motion such as those produced by the vibrations of machinery. But for typical human-scale motions such as walking or exercising, such systems have limits.

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New Elements Added to Periodic Table

Periodic TableThe seventh row of the periodic table has been completed with the addition of four new elements. The International Union of Pure and Applied Chemistry (IUPC) has officially filled slots 113, 115, 117, and 118 with the tentatively ununtrium, ununpentium, ununseptium, and ununoctium.

These are the first new elements to be officially added to the period table since felrovium and livermorium in 2011.

This from PBS:

Japan’s RIKEN Institute has been credited for the discovery of ununtrium (113), while ununpentium (115), ununseptium (117) and ununoctium (118) were discovered by scientists at the Joint Institute for Nuclear Research in Dubna, Russia; California’s Lawrence Livermore National Laboratory; and the Oak Ridge National Laboratory in Tennessee.

Read the full article.

“The chemistry community is eager to see its most cherished table finally being completed down to the seventh row,” Professor Jan Reedijk, President of the Inorganic Chemistry Division of IUPAC, said in a statement.

New Device to Capture Bio-Data

An interdisciplinary team from multiple institutions in South Korea has recently developed a novel stretchable memory device that can be applied to the skin and used to monitor heart rate, which they believe outpaces current biosensor technology in this field.

With bio-data capturing devices on the rise in popular culture, researchers are working to increase efficiency and stability in these devices. The main problem with the current technologies is that the devices do not sit close enough to the skin. To combat this issues, the researchers have developed a new array that can be applied directly to the skin and can withstand stretching.

This from TechXplore:

The memory array is nonvolatile and made from fully multiplexed silicon and nanocrystal floating gates. The resulting device architecture built by the team is approximately the size of a human thumb and consists of two main parts, an array of ECG electrodes that are used for reading the heart rate, and the memory array—the two are connected together by a bit of electronics that also serve as amplifiers. The result is a patch-like device that is able to be stretched because the membrane material between each of the tiny squares circuits that make up both of the arrays, is flexible.

Read the full article.

Teaching Bacterium a New Trick

Scientists are teaching old bacterium some new tricks in an effort to advance artificial photosynthesis.

The bacterium Moorella thermoacetica has been trained to perform photosynthesis, even though it is non-photosynthetic. All of this comes with a push to convert sunlight into valuable chemical products for a cleaner, greener energy future.

“We’ve demonstrated the first self-photosensitization of a non-photosynthetic bacterium, M. thermoacetica, with cadmium sulfide nanoparticles to produce acetic acid from carbon dioxide at efficiencies and yield that are comparable to or may even exceed the capabilities of natural photosynthesis,” says Peidong Yang, lead researcher of this work.

Previously, Yang’s work has centered around the development of the artificial “leaf,” which aims to produce natural gas from carbon dioxide. This extension of that work is still in line with the development of a clean energy future.

(MORE: Read more of Yang’s research in the ECS Digital Library.)

“In our latest study, we combined the highly efficient light harvesting of an inorganic semiconductor with the high specificity, low cost, and self-replication and self-repair of a biocatalyst,” Yang says. “By inducing the self-photosensitization of M. thermoacetica with cadmium sulfide nanoparticles, we enabled the photosynthesis of acetic acid from carbon dioxide over several days of light-dark cycles at relatively high quantum yields, demonstrating a self-replicating route toward solar-to-chemical carbon dioxide reduction.”

IMLB Abstracts Due

IMLB_2016_4CDon’t miss your chance to participate in IMLB 2016! This international meeting will provide an exciting forum to discuss recent progress in advanced lithium batteries for energy storage and conversion.

IMLB focuses on both basic and applied research findings that have led to improved Li battery materials, and to the understanding of the fundamental processes that determine and control electrochemical performance. A major (but not exclusive) theme of the meeting will address recent advances in beyond lithium-ion technologies. The meeting will cover a wide range of topics relating to lithium battery science and technology including, but not limited to:

  • General and national projects
  • Anodes and cathodes
  • Nanostructured materials for lithium batteries
  • Liquid electrolytes and ionic liquids
  • Polymer, gel, and solid electrolytes
  • Issues related to sources and availability of materials for Li batteries
  • Li battery recycling
  • Electrode/electrolyte interface phenomena
  • Safety, reliability, cell design and engineering
  • Monitoring, control and validation systems
  • Manufacturing and formation techniques
  • Primary and rechargeable Li cells
  • Industrial production and development for HEVs, PHEVs, and EVs
  • Latest developments in Li battery technology

Make sure to submit your abstract before January 15, 2016!

See you in Chicago!

Posted in Meetings

Understanding Corrosion from Nano to Macro

From oil pipeline breaks to leaks in chemical plants, corrosion is one of the most damaging and costly naturally occurring events seen today. In order to better understand and prevent to corrosion process, John Scully, ECS member since and 2016 winner of the Society’s Linford Award, has teamed up with a multidisciplinary team to understand corrosion from the nano to the macroscale.

A new Multidisciplinary University Research Initiative (MURI) has emerged with the mission of preventing corrosion. Sponsored by the Office of Naval Research, the ultimate goal of the project is to understand, predict, and control the role of minor elements on the early stages of corrosion in metal alloys.

At its core, corrosion is the degradation of materials due to electrochemical reactions with the environment. In addition to yielding safety issues, corrosion costs an expected $23 billion annually, according to the Department of Defense.

Not only can corrosion cause buildings and bridges to collapse, but corrosion o electrical outlets and medical implants can cause fires and blood poisoning.

In order to address this complex problems, Scully and others are creating a team comprised of those versed in electrochemistry, microscopy, tomography, and simulations.

penn-state-materialA new material developed at Penn State could mean big things for everything from smartphones to solar cells.

For over 60 years, the main material used in transparent conductor display has been indium tin oxide. With over 90 percent of the display market utilizing this material, it has left very little room for competitor materials.

While indium tin oxide has provided solid efficiency levels at a decent price point for the past half decades, expenses have recently skyrocketed on this material.

Current electronic devices, such as smart phones and tables, are primarily priced according to display material costs. Displays and touch screen modules make up 40 percent of the cost to produce a device, greatly outpacing other essential pieces such as chips and processors. It hasn’t been until now that researchers have found a material that could potential replace indium tin oxide and potentially reduce device costs.

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Observing a Chemical Reaction

In order to improve upon existing technology, researchers typically take a deeper look into current generation models to get a deeper understanding of everything that is happening on the small-scale. Answering questions as to why something happens or when it happens could allow researchers to make current technology more efficient.

One of the things that researchers have been working to more fully understand for some time now is that of a chemical reaction. For the first time ever, researchers from MIT have observed the exact moment when a chemical reaction occurs between two substances. From this, the researchers were able to measure the energy of the transition state—something that was previously thought impossible due to the complexity of chemical reactions.

“Your reactants and products are stable valleys on either side of a mountain range, and the transition state is the pass,” said Josh Baraban, lead author of the study. “It’s the most convenient way to get from one to the other. Because it only exists as you go from as one thing to another, it’s never really been thought of as something that you can easily study directly.”

This from IFL Science:

The team studied a chemical process called isomerization. In this reaction, one molecule is transformed into another molecule that has the same atoms but they are arranged in a different way. The researchers looked at acetylene, a molecule formed by two carbon atoms bound to each other, and each bound to a hydrogen atom.

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Interning with The Electrochemical Society

Amanda Squicciarini, Membership Services intern.

Amanda Squicciarini, Membership Services intern.

My name is Amanda Squicciarini and I have been interning at The Electrochemical Society since this past September with Beth Fisher in Membership Services. I am a junior at The College of New Jersey, located just up the road from ECS’s Pennington, NJ headquarters where I am studying marketing and communications.

You have probably seen a couple of my blog posts, like 2015 ECS Outstanding Student Chapter or 5 Ways to Expand Your Student Chapter (if not, make sure you go check them out!). This was my first experience with Word Press and blogging in general, so it was exciting to see my work published on this blog that has 15,000 page views per month. Blogging was only one of the many learning opportunities I have had at ECS over the past four months. I was also responsible for creating student chapter newsletters, and processing their reimbursements. If you are a student chapter officer, you have probably received quite a few emails from me!

As you probably already know, ECS holds bi-annual meetings every spring and fall in places anywhere from Boston, MA, USA to Cancun, Mexico. During my internship, I was able to observe the behind the scenes hard work and hours of planning that goes into these meetings months before they actually happen. My internship had just begun a few weeks before the fall meeting, and I was able to see how much work needed to be done in order for the meeting to be successful. I felt that this was a special experience to be able to see an event of that magnitude being prepped and planned for (over 2,000 people from 46 different countries attended the 228th ECS Meeting in Phoenix, AZ, USA this fall!). I even got to help by packing registration supplies, creating signs and making sure that the fellows were listed to be given their ribbons. Then after everyone returned from the meeting, I was in charge of organizing the data from the short courses to see if there were any ways to improve them for the next biannual meeting.

This internship was also my first experience in the non-profit sector. It was a great learning opportunity to be able to see how a non-profit functions. In addition, the history being endless within the society really appealed to the history buff in me. A task of mine was to scan in old files (as far back as 1903) so that the historic information is not lost when the papers are eventually recycled. Although this may seem like a very “typical” intern task, this task was essential due to the fact that members of ECS have been changing the world with their research for over 100 years. You may have heard of a guy named Thomas Edison… he was a member of ECS and I would say he changed the world! And hey, it’s pretty neat to be handling papers that are more than five times my age.

Overall, interning with The Electrochemical Society has been a great opportunity and I know I will be using the skills learned during my internship here, throughout my career. Thank you ECS staff and members for making me feel welcome, always being helpful and for teaching me something new on a daily basis. I could not have asked for a better internship experience.

Spring 2015 Internship Opportunity:

If you are seeking an internship opportunity for the spring semester, contact Beth Fisher, Membership Services Director, at beth.fisher@electrochem.org for more information. And no worries if you have not had much experience within the field of electrochemistry, I didn’t either, but you’ll pick it up quick and it is truly a great opportunity.

JESECS is seeking to fill the position of Technical Editor of the Electrochemical Engineering Topical Interest Area for the Journal of The Electrochemical Society.

The Electrochemical Engineering (EE) Topical Interest Area (TIA) includes industrial electrochemistry; the mathematical modeling of electrochemical reactors and devices; electrochemical machining; and the electrochemical synthesis of compounds. Specific topics include: kinetics, selectivity, and yields; mass, momentum, and heat transport; and electrode designs and evaluation.

The Journal of The Electrochemical Society (JES) has been in existence since 1902. Along with the ECS Journal of Solid State Science and Technology (JSS), JES and JSS provide unparalleled opportunities to disseminate basic research and technology results in electrochemical and solid state science and technology. JES and JSS each publish a minimum of 12 regular and focus issues each year. All ECS journals offer Author Choice Open Access.

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Posted in Announcements