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Ionic Diode Materials in Energy Conversion Electrochemistry

责编: | 发布日期:2016-12-16| 阅读次数:
报告(活动)名称    Ionic Diode Materials in Energy Conversion Electrochemistry  
报告(活动)时间    2016/12/19 10:30:34 至2016/12/19 11:30:43  
报告(活动)地点    图书馆中心会议室 报告(活动)
报名时间                     2016/12/13 12:41:27 至2016/12/19 9:41:3
报告(活动)内容    Several types of ion conducting materials provide “ionic diode” effects. One of these are Polymers with Intrinsic Microporosity (PIMs), which provide a novel class of structurally rigid ion-selective membrane materials with 3D nanofluidic pores of typically 15 nm size. The PIM-EA-TB material (see figure) employed here is based on a poly-amine with estimated pKA1 = 4.0 and pKA2 = 0.4 and therefore in the protonated state an anion-conductor. This microporous material can be employed to “heterogenise” water-insoluble molecular redox systems in films at the electrode surface. When deposited asymmetrically over a 20 μm diameter hole in poly-ethylene-terephthalate (PET) and investigated in a two- compartment electrochemical cell with aqueous electrolyte on both sides, ionic diode effects (associated with pKA1) are observed with potential applications in energy conversion and in water desalination.
报告人简介 Frank Marken has in September 2004 been appointed to a Senior Lecturer position and in 2011 promoted to a personal chair at the Department of Chemistry, University of Bath. Before joining Bath, Frank obtained a Dr. rer. nat. degree at RWTH Aachen and worked at La Trobe University (Melbounre) and Oxford University (UK). Frank organises annual training courses on electrochemical techniques (Bath Electrochemistry Winter School, Bath Electrochemical Impedance Summer School, Great Western Electrochemistry Meeting) and national/ international scientific meetings such as ECHEMS 2017 in Italy. Research interests are centered on fundamental mechanistic understanding of multi-interfacial processes and the development of novel electrochemical technologies, but also applications of electrochemistry in sensing, energy conversion, or in water purification.