Binary metallic sulphide‐based nanocomposites with ZnO additives: A dual‐functioning electrode material for energy storage and glucose sensing

In the contemporary age, there is a growing need for innovative energy storage solutions that integrate the crucial features of supercapacitors and rechargeable batteries to meet evolving energy requirements. Herein, we used the hydrothermal method to synthesize a binary composite electrode material...

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Bibliographic Details
Published in:Canadian journal of chemical engineering 2024-06, Vol.102 (6), p.2184-2196
Main Authors: Imran, Muhammad, Khan, Mahrukh Saif, Afzal, Amir Muhammad, Iqbal, Muhammad Waqas, Mumtaz, Sohail, Habila, Mohamed A., Ahmad, Zubair
Format: Article
Language:English
Subjects:
Activated carbon
Charging
Chemical sensors
cobalt niobium sulfide (CoNbS)
Electrode materials
Electrodes
energy density
Energy requirements
Energy storage
Glucose
Nanocomposites
Nanomaterials
Niobium
power density
Rechargeable batteries
Sulfides
supercapacitors
Zinc oxide
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Summary:In the contemporary age, there is a growing need for innovative energy storage solutions that integrate the crucial features of supercapacitors and rechargeable batteries to meet evolving energy requirements. Herein, we used the hydrothermal method to synthesize a binary composite electrode material. The addition of ZnO as a doping material significantly enhances the specific capacity of cobalt niobium sulphide (CoNbS) from 538.16 C g−1 to 912.62 C g−1 due to its high conductivity and the presence of redox‐active sites. We have also developed a supercapattery (CoNbS@ZnO//activated carbon [AC]), which has demonstrated outstanding performance with a remarkable specific capacity of 325.92 C g−1 at a current density of 1.5 A g−1. Furthermore, the supercapattery device shows improved energy and power densities, measuring 35 Wh/kg and 2397 W/kg, respectively. After 5000 galvanostatic charging discharging (GCD) cycles, the device shows columbic efficiency (90%) and capacity retention (83%). Additionally, the CoNbS@ZnO//AC hybrid device is used as an electrochemical sensor for glucose detection. The device showed a high sensitivity against the glucose and detected up to a small value. The synthesis of nanomaterials opens up new opportunities to create high‐performance energy related systems.
ISSN:0008-4034
1939-019X
DOI:10.1002/cjce.25210