报告讲座 > 正文

Yun-Xiao Wang: Optimizing strategies for sulfur-based electrodes towards low-cost and superior sodium-ion storage
发布日期:2019-09-16  字号:   【打印

报告时间:2019年9月23日(星期一)16:00-17:00

报告地点:材料楼601会议室

  :Yun-Xiao Wang Research Fellow

工作单位Institute for Superconducting and Electronic Materials (ISEM), University of Wollongong (UOW), Australia

举办单位材料科学与工程学院

报告人简介

Dr. Yun-Xiao Wang is a Research Fellow at the Institute for Superconducting and Electronic Materials (ISEM), University of Wollongong (UOW). She received her Bachelor’s degree (2008) from Hebei Normal University and her Master’s degree (2011) from Xiamen University. She obtained her PhD degree from the University of Wollongong in 2015. She was awarded a 2017 Discovery Early Career Researcher Award (DECRA) from the Australian Research Council. Her current research interest is renewable energy storage and conversion, including electrocatalysis, lithium/sodium-ion batteries, and lithium/sodium sulfur batteries. She has published more than 40 papers in peer-reviewed journals including Nature Chemistry, Nature Communications, Journal of the American Chemical Society, Angewandte Chemie, Advanced Materials, and Advanced Energy Materials. Her publications have attracted 2,300+ citations with an h-index of 23.

报告简介

Emerging rechargeable sodium‐ion storage systems—sodium‐ion and room‐temperature sodium–sulfur (RT‐NaS) batteries—are gaining extensive research interest as low‐cost options for large‐scale energy‐storage applications. Owing to their abundance, easy accessibility, and unique physical and chemical properties, sulfur‐based materials, in particular metal sulfides (MSx) and elemental sulfur (S), are currently regarded as promising electrode candidates for Na‐storage technologies with high capacity and excellent redox reversibility based on multi-electron conversion reactions. In the talk, I will present current understanding of Na‐storage mechanisms of the S‐based electrode materials. I will introduce our recent progress and strategies for improving electronic conductivity and tolerating volume variations of the MSx anodes in Na‐ion batteries, such as FeS2 and MoS2. In addition, current advances on S cathodes in RT‐NaS batteries will be presented. Significantly, I outline a novel emerging concept of integrating MSx electrocatalysts into conventional carbonaceous matrices as effective polarized S hosts in RT‐NaS batteries. The relevant works on polarized S hosts will be discussed as well.

(罗来马/文)  
编辑:徐小红
0