3D Bioplotter Research Papers

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Displaying all papers by I-M. Lazar (1 results)

3D Micro‐Extrusion of Graphene‐based Active Electrodes: Towards High‐Rate AC Line Filtering Performance Electrochemical Capacitors

Advanced Functional Materials 2014 Volume 24, Issue 29, Pages 4706–4716
T. Nathan-Walleser I-M. Lazar M. Fabritius F. J. Tölle Q. Xia B. Bruchmann S. S. Venkataraman M. G. Schwab R. Mülhaupt

A facile one-step printing process by 3D micro-extrusion affording binder-free thermally reduced graphene oxide (TRGO) based electrochemical capacitors (ECs) that display high-rate performance is presented. Key intermediates are binder-free TRGO dispersion printing inks with concentrations up to 15 g L−1. This versatile printing technique enables easy fabrication of EC electrodes, useful in both aqueous and non-aqueous electrolyte systems. The as-prepared TRGO material with high specific surface area (SSA) of 593 m2 g−1 and good electrical conductivity of ≈16 S cm−1 exhibits impressive charge storage performances. At 100 and 120 Hz, ECs fabricated with TRGO show time constants of 2.5 ms…

Electrical Conductivity Graphene