While completing her Master’s degrees in Chemical Engineering & Technology at the Beijing Institute of Technology, Yanliu Dang discovered her research area of interest, materials and catalysis. When searching for doctoral programs, she decided to come to the US in order to learn about American culture and explore research opportunities not available in China. She singled out UConn to study under the guides of one of the world’s leaders in catalysis, Prof. Steven Suib.

Her studies in catalysis at UConn led to her dissertation defense, “Design, Synthesis, and Characterization of Metal Oxide/Phosphide-Based Catalysts for Energy Applications”

In addition to catalysis, Yanliu stated that she gained significant knowledge in microscopy and material characterization. She was very grateful to have the opportunity to work on advanced instruments at UConn: Titan Themis TEM, Dual Beam FIB, and XPS to study materials and catalytic mechanisms.

Yanliu’s paper, Constructing Bifunctional 3D Holey and Ultrathin CoP Nanosheets for Efficient Overall Water Splitting, was published in July 25, 2019. Her paper, Partial Reduction of Ruthenium Oxide as Efficient and pH-Universal Electrocatalysts for Hydrogen Evolution, is currently under review. Her third paper, Self-standing Ruthenium Oxide Nanocomposite for Regenerable Electrocatalyst in Seawater Splitting, is around the corner.

We are proud to announce the launch of our new website. Built on the the university Aurora service, this new version of our site sports a modern look, faster loading times, and works on all mobile and tablet devices.

Ian J. Martin and Samiksha Vaidya of Dr. Rajeswari Kasi’s research group recently attended the American Chemical Society (ACS) Fall 2019 National Meeting & Exposition in San Diego, CA and presented posters entitled “Templated perylene diimide-polydiacetylene supramolecular structures with unique chromatic transitions” and “Molecular engineering of dye incorporated liquid-crystalline polymers with different architectures”, respectively. Each of their presentations were highlighted as distinguished poster nominees in the Polymeric Materials: Science and Engineering (PMSE) division.

Mechanoluminescence (ML), also called triboluminescence (TL), refers to the phenomenon/process that materials could emit light under mechanical stimuli, e.g., friction, stretch, compression, impact, etc. The ML materials could utilize the ubiquitous mechanical energy in daily life to generate light emissions, avoiding the requirement of an artificial photon- or electron-excitation source as that in photoluminescence (PL) or electroluminescence (EL). Therefore, ML materials show great advantages in energy saving and environmental protection.

For practical applications, ML crystals or powders are required to composite with bulk matrices to generate structural non-destructive ML. Among the fabricated ML composites, elastomer-based ones have attracted increasing attention owing to the rising requirement of incorporating stress sensing characteristic into flexible/wearable devices. The present ML elastomer composites mainly employ transition metal ion doped sulfides (TM-sulfides) as the luminescent components because of their intense ML intensity. However, the TM-sulfides usually have poor chemical stability and may cause severe environmental pollution as well as lack of rich emission color.

Theoretically, rare earth doped oxides (RE-oxides) are promising alternatives because of their high chemical stability, nontoxicity, and abundant energy levels. It is essential to develop efficient and ideally multicolored ML of RE-oxide based elastomer composites, so that flexible devices may possess remarkable and environmentally friendly mechanical responsive optical characteristics.  Read the full story at Science Trends.