Novel chemical imaging technique reported

Our collaboration with scientists at the Advanced Light Source continues to prove fruitful. They developed a novel technique of ptychographic chemical imaging based on phase contrast, and used LixFePO4 samples to prove the concept. The paper is available in Applied Physics Letters, and credits contributions by Young-Sang, one of our alumni.

Intercalation chemistry of fluoride perovskites

A new paper from our group appearing in Chemistry of Materials discusses the ability of perovskite-type KFeF3 to undergo redox intercalation reactions. A combination of tools revealed the possibility of reversible removal of K, followed by intercalation of Li and Na. This work was pushed forward by one of our alumni, Tanghong, with support from Mike. Well done, Tanghong and Mike!

New paper on multivalent hybrid supercapacitors

Sam spearheaded a new article in ACS Applied Materials and Interfaces on the design of hybrid energy storage devices combining a multivalent metal, such as Mg or Zn, and a carbon electrode, in a multivalent electrolyte. The resulting rocking-chair supercapacitor overcomes some of the issues with energy density of conventional supercapacitors, which operate through the depletion of the electrolyte salt. Nice job, Sam!

Article selected as ACS Editor’s Choice

A new article by Chunjoong and Young-Sang, Cabana group Alumni, has been selected as Editor’s Choice by the The Journal of Physical Chemistry C, a peer-reviewed journal published by the American Chemical Society (ACS). The article employs optical and X-ray microscopy to visualize the propagation of electrochemically-reacted domains in a battery electrode without any conductive additives.  Additive-free electrodes present opportunities to increase the energy density of a battery, as well as constitute valuable model systems to increase our understanding of the kinetics of electrochemical reactions in solids.  Under ACS Editors’ Choice, the article is sponsored for immediate, free open access by ACS due to its potential for broad public interest, an honor given to only one article from the entire ACS portfolio each day of the year.

Congratulations, Chunjoong and Young-Sang!

Gene wins UIC Award

Gene Nolis was just awarded the UIC Provost’s Award for Graduate Research. This competitive award financially supports research by graduate students at UIC. Congratulations, Gene!!!

“High-Occupancy” Vehicle (HOV) Battery

The Joint Center for Energy Storage Research has selected our work on Mg2+ intercalation into Mn2O4 for highlight of recent developments in the website of the Office of Science of the Department of Energy. The highlight can be found here.

Watch members of our group do Chemistry demos!

The Chemistry Graduate Student Association (CGSA) at UIC recently hosted 200 second graders from CICS Loomis Primary School. Members of the CGSA and other chemistry graduate students volunteered to perform chemistry demonstrations for these kids with the goal of sparking their interest in science. Find the pictures of the event here. You will recognize some faces from our group (yes, the Human Torch is in our team!).

New papers out

A new paper published by our group in Journal of Materials Chemistry describes the effects of different types of atomic defects in LiNi0.5Mn1.5O4, a material of interest in high voltage batteries. This work was primarily carried out during the Berkeley chapter of our group, so kudos to Chunjoong Kim, former group member, for a fine piece of work!

In addition, 3 new papers are out resulting from the vigorous collaborations our group has with other teams worldwide. They deal with topics in magnesium and lithium/sulfur batteries, as well as the fundamentals of cation transport in solids.

Farewell to team members

3 members recently left our group to search new endeavors:

  • Ryan Bayliss recently accepted a Researcher position at the University of Oxford.
  • Jenine Krakra completed her Bachelor of Arts in Chemistry and is now musing her next adventure.
  • Abdullah Adil decided it was time to finally show he is actually more interested in medicine than batteries and will become an undergraduate researcher in the West Campus of UIC this Fall.

We wish them all the best and hope for reunions in the future!

Jenine wins poster award

Bihgha Jenine Krakra, one of the undergraduate researchers in our group, recently won an award for her poster presentation at the Iota Sigma Pi Undergraduate Research Symposium held at Lewis University. Jenine presented her results on synthesizing lithium manganese fluorides with different structures and compositions. Congratulations on a great job, Jenine!