| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Hryniewicz, Bruna M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (2/2 displayed)
Places of action
| Organizations | Location | People |
|---|
article
Enhancement of the Potential Window of Ppy Electrodes in the Presence of a Bis(Oxamato) Nickel(II) Complex for High‐Performance Supercapacitor
Abstract
<jats:title>Abstract</jats:title><jats:p>Enhancing the supercapacitors’ performance relies on the increased capacitance and voltage window, which are the current key challenges for developing new materials. In this study, the mononuclear Ni<jats:sup>II</jats:sup>‐bis(oxamato) complex ([<jats:sup><jats:italic>n</jats:italic></jats:sup>Bu<jats:sub>4</jats:sub>N]<jats:sub>2</jats:sub>[Ni(opba)], <jats:bold>1</jats:bold>) has been synthesized and used as a template in polypyrrole (PPy) based conductive polymer as a novel electrode material for supercapacitor applications. The surface and structural properties of PPy and PPy/<jats:bold>1</jats:bold> electrodes were studied using SEM and TEM to elucidate their interactions. The results of characterization techniques revealed that complex <jats:bold>1</jats:bold> altered the morphology, creating a prominent three‐dimensional globular structure in the PPy/<jats:bold>1</jats:bold> hybrid material without significant chemical modification. The electrochemical properties of PPy and PPy/<jats:bold>1</jats:bold> were investigated by CV, EIS, and GCD analyses. The PPy/<jats:bold>1</jats:bold> electrode demonstrated intense pseudocapacitive behavior, showing a significantly widened potential window and increased current compared to the PPy electrode, resulting in enhanced energy storage capacity within the material. This improvement was evaluated by testing a symmetric supercapacitor in a coin cell architecture with an alginate‐based gel acting as both electrolyte and separator. The maximum specific cell capacitance reached 41.6 F g<jats:sup>−1</jats:sup> at a current density of 0.2 A g<jats:sup>−1</jats:sup>, with a remarkable capacity retention of 97 % after 1000 galvanostatic charge/discharge cycles.</jats:p>