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【9th.Nov.】Conductive Metal-Organic Frameworks (MOFs) for Electrochemical Energy Storage

2018-11-08


题目:Conductive Metal-Organic Frameworks (MOFs) for Electrochemical Energy Storage
报告人: 冯大卫 助理教授 美国威斯康辛大学麦迪逊分校
时间: 2018年11月9日(周五)上午10:00 
地点: 化学A楼518会议室
邀请人: 颜徐州 研究员


报告人介绍
  冯大卫, 美国威斯康辛大学麦迪逊分校助理教授。2009年本科毕业于北京大学,2010-2015年在美国德州农工大学(TAMU)攻读博士学位,师从周宏才教授。2015-2018年在美国斯坦福大学鲍哲南教授课题组从事博士后研究。2016年荣获ACS DIC Young Investigator Award,2015年荣获Chinese government award for outstanding self-financed students abroad。

  冯大卫博士的主要研究工作包括金属有机框架材料、有机-无机杂化材料的设计、合成及储能研究等,已在Nature Energy, Nature Commun., J. Am. Chem. Soc., Angew. Chem. Int. Ed.等期刊上发表论文30余篇。


内容介绍
As electronic technology advances, the need in safe and long-lasting energy storage devices that occupy minimum volume arises. Short charging times of several seconds to minutes, with energy densities comparable to those of batteries, can be achieved in electrochemical capacitors (supercapacitors), in particular pseudocapacitors, which utilize fast redox reactions to store charge and, thus, feature high energy densities. 


However, metal oxides that are currently used in energy storage technologies have certain limitations. Due to low intrinsic electrical conductivity they might suffer from poor cyclability and deterioration of electrochemical performance for thick electrodes. 


As an alternative, conductive two-dimensional materials pose particular interest to the researchers owing to impressive areas of electrochemically-active surfaces. 


Herein, a new family of the conductive 2D MOFs, M-HABs, will be presented as the electrode materials for electrochemical capacitors. A gravimetric capacitance up to 400 F/g of Ni-HAB was demonstrated with a mass loading of 5 mg/cm2, yielding areal capacitance close to 15 F/cm2. 


Moreover, M-HABs demonstrated excellent cycling stability, which is promising for practical applications.


代表性论文
1. Feng, D.; Lei, T.; Lukatskaya, M. R.; Park, J.; Huang, Z; Lee, M.; Shaw, L.; Chen, S.; Yakovenko, A. A.; Kulkarni, A.; Xiao, J.; Fredrickson, K.; Tok, J.B.; Zou, X.; Cui, Y.*; Bao, Z.* “Robust and Conductive Two-Dimensional Metal-Organic Frameworks with Exceptionally High Volumetric and Areal Capacitance” Nature Energy, 2018, 3, 3036.
2. Feng, D.; Liu, T.-F.; Su, J.; Bosch, M.; Wei, Z.; Wan, W.; Yuan, D.; Chen, Y.-P.; Wang, X.; Wang, K.; Lian, X.; Gu, Z.-Y.; Park, P.; Zou, X.; Zhou, H.-C.* “Stable Metal-Organic Frameworks Containing Single-Molecule Traps for Enzyme Encapsulation” Nature Commun. 2015, 6, No. 5979. 


  



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