Synthesis a new Ni-MOF and study effect of contemporary TMU-10 and new Ni-MOF synthesis and survey a new bi MOF-rGO composite as material for positive electrode in supercapacitors

Nowadays due to the rapid progress of electronic science and the increasing expansion of mobile electronic devices, also due to increasing energy consumption and etc, electrical energy storage systems have been highly regarded. Among electrical energy storage systems, electrochemical energy storage systems such as fuel cells, batteries (Li-ion) and supercapacitors (SCs) are considerable candidates. One of the smart choices for SCs active materials are metal organic frameworks. Emerging this class of nano porous materials with high surface area, large electrolyte-accessibility and also transition metal in their structures (transition metal/oxides due to Faradaic redox reactions have a higher capacitance and energy compare to carbonaceous materials) open a new window to fabricate and present high performance SCs. Based on the above considerations in this communication, we propose a new method with interesting results to enhance MOF-SCs. We tried to synthesis two MOFs at same time, and we have gained interesting result. Existing secondary metal interestingly effect on another MOF morphology and finally we found a synergic effect. Our first step was synthesized a new nickel MOF that has good stability in water with same linker toward TMU-10, in the second step we synthesized both MOFs at same time and after characterization by SEM, TEM, EDX, XPS, XRD, elemental mapping and IR, we found changes in TMU-10 morphology also we have seen interesting synergic effect on electrochemical performance. In next step we tried to enhance the material electrochemical properties and synthesized our new MOF composite in presence of rGO and achieved a more applicable composite. In final step we used synthesized composite as active material to prepare cathode electrode and design a supercapacitor (SC) high performance (table 264 1). The designed 2electrode supercapacitor showed good retention in 6000 charge-discharge cycles (92% retention) and interesting performance e.g turn on a watch for about 2h by only 14mg active material. In this study we try to expand and survey some details that no one didn’t attended them till now, like as effect of MOF activation on its electrochemical performance, or effect of contemporary MOFs synthesis on their morphologies.