KAUST Ph.D. student Chuan Xia wins best poster award at ICMAT 2017

KAUST Ph.D. student Chuan Xia won the best poster award at the 9th International Conference on Materials for Advanced Technologies (ICMAT 2017) in Singapore, held from June 18 to 23 and sponsored by the Materials Research Society (MRS) of Singapore.

Xia's poster focused on his work on developing ternary metal sulfides and selenides for energy storage and conversion applications. He showed that partially replacing Co atoms with Ni atoms of CoSe2 creates solid solutions with high concentration of defects, making these materials promising for energy storage and electrocatalysis applications. His work was recently published in Advanced Materials and Advanced Energy Materials. At KAUST, he is supervised by Husam Alshareef, KAUST professor of material science and engineering, and is a member of Alshareef's Functional Nanomaterials & Devices research group.

“Ternary chalcogenides are amazing compounds due to several important features,” noted Xia. "They typically have metal atoms that can exist in multiple oxidation states, so they exhibit high electrochemical activity, which makes them ideal electrode materials for electrochemical energy storage devices. Furthermore, certain compositions of these materials can have metallic conductivity, which means that electrons that are produced during electrochemical reactions can travel very fast in such compounds. This fact can significantly improve their performance. Many of these compounds are also superhydrophilic, which means that they work well in aqueous electrolytes."

“Chuan is a very hardworking and creative Ph.D. student who has made significant contributions to KAUST, and he has represented us well at various international meetings. I am really proud of him,” Alshareef said.

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