报告主题：Multifunctional black phosphorus nanosheets for Li/Na storage

报告人： 颜清宇 教授

报告时间：2019年7月4日上午9:30

报告地点：公字楼328会议室

报告摘要：   

     Delamination of black phosphorus (BP) into monolayer or few-layer, dubbed phosphorene, and manipulation of its newly discovered properties that are unattainable by its bulk structure have been a recent scientific breakthrough. As an elemental analogue of graphene, researchers intended to exploit its structural similarity to substitute graphene as anode for lithium ion batteries (LIBs) as one of the dominant power sources for portable electronic devices. In addition, theoretical studies have revealed that Li diffusion along zigzag directions in phosphorene is hundreds times faster than that in MoS₂ or graphene.

    We will present our recent activities on synthesis of few layered black phosphorus nanosheets through diferent methods and study their Li/Na storage properties. Especially, we try to improve their chemical stability by forming composite structures with the aid of spark plasma sintering (SPS) process. It shows that excellent air stability of SPS-processed black phosphorus can be achieved over the 60 days observation in maintaining its high Li storage properties.

报告人简介：

      颜清宇教授现任南洋理工大学材料科学与工程学院教授，助理院长。他在南京大学获得材料科学与工程学士学位；在纽约州立大学石溪分校材料科学与工程系获得博士学位。之后，他加入了伦斯勒理工学院材料科学与工程系，担任博士后研究员。他于2008年初加入南洋理工大学材料科学与工程学院担任助理教授，并于2018年成为教授。

   他目前是新加坡电化学学会的主席。他自2018年成为皇家化学学会的成员。他是2018年汤森路透统计的材料科学高备引科学家。他自2016年起担任Materials Research Express（IOP期刊）的董事会成员。颜清宇教授的两个研究领域为:（1）热电材料; （2）用于电化学储能或转化的材料，一共发表了280多篇论文（总引文数> 19000，h指数为73）。