طراحي و تهيه كامپوزيت مبتني بر PANI/ ZIF-67/ NiSe بر روي بستر فوم نيكل به منظور ساخت ابرخازن نامتقارن با عمر چرخه اي بالا

Numerous studies have investigated energy storage devices, such as supercapacitors (SCs) an‎d their corresponding active material electrodes, in response to the increased deman‎d for renewable energy sources. Herein, we report a novel binder-free PANI/ ZIF-67/ NiSe/ NF Compisite on Ni foam as an electrode material for supercapacitors, designed by a simple an‎d low-cost co-electrodeposition process. The prepared composites were analyzed using various techniques, including XRD, XPS, SEM, an‎d EDX mapping. The electrochemical performance of the prepared composite electrodes was measured using different techniques such as cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), an‎d galvanostatic charge-discharge (GCD). The PANI/ ZIF-67/ NiSe/ NF electrode displayed excellent electrochemical behavior which is evident in the high value of the specific capacitance of 481.30 C g− 1 at a current density of 1 A g− 1. On the other han‎d, an asymmetric supercapacitor (ASC) was assembled by employing the unique composite material in conjunction with conductive Polyaniline. The power an‎d energy densities of the PANI/ ZIF-67/ NiSe/ NF //AC Supercapacitor were 400 W kg− 1 an‎d 27.3 Wh kg− 1, respectively. The capacitance of PANI/ ZIF-67/ NiSe/ NF //AC is retained at 96% even after 1000 cycles at a current density of 10 A g− 1, suggesting remarkable cycle stability. This study provides compelling evidence supporting the potential of NiSe as a promising electrode material in supercapacitors.

علي اصغر انصافي

اسماعيل حيدري , محمدمحسن مومني هامانه