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Fabrication of Metal Organic Framework Flexible All Solid State Supercapacitors By Electrophoretic Deposition

Wednesday, 16 May 2018: 11:50
Room 607 (Washington State Convention Center)
F. Z. Amir, J. Peck, and J. M. Hanna Jr. (Winthrop University)
Two-dimensional (2D) materials exhibit remarkable properties that suggest many possibilities for electronic applications. Metal organic frameworks (MOFs) are 2D nanosheets materials, which are good candidates for applications in various electrochemical applications such as fuel cells, batteries, and supercapacitors. Herein we report the fabrication of Ni3(2,3,6,7,10,11-hexaaminotriphenylene)2 (Ni3(HITP)2) flexible all solid-state supercapacitors by electrophoretic deposition (EPD). The Ni3(HITP)2 films were electrophoretically deposited in a layer-by-layer fashion onto targeted substrates. The electrodes’ surface morphology characterized by SEM shows a porous surface, and a honeycomb morphology known for improving the capacitive performance. TEM pictures confirmed the ultrathin two-dimensional structure of the (Ni3 (HITP)2) electrodes. The electrochemical capacitive performance of the obtained symmetric Ni3(HITP)2 supercapacitor has been characterized using cyclic voltammetry measurements and galvanostatic charge-discharge tests. This work demonstrates an exciting potential of EPD for the fabrication of high performance MOFs for flexible solid state energy storage systems.