Rahadian Zainul, Chou-Yi Hsu, Ali Basem, Dheyaa J. Jasim, Ángel Alberto Silva Conde, Yathrib Ajaj, Khursheed Muzammil, Saiful Islam, Ahmed Elawady
Introducing and using novel conductive organic–inorganic material systems for the supercapacitor industry is rapidly emerging. In this work, the well-defined MCo2O4 nanospheres (M: Mn, Ni) are successfully grown on the graphitic carbon nitride/polypyrrole (g-C3N4@PPy) nanoparticles by hydrothermal/polymerization process. XPS, FT-IR, XRD, BET, and SEM techniques were employed to investigate the physical and chemical properties as well as the surface characteristics of MCo2O4 nanospheres. The electrochemical behavior of the developed electrode was investigated by electrochemical techniques such as cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS). Moreover, owing to the advantageous proportion of aspect ratio and relatively low electrode and electrolyte resistance, the highest specific capacitance value for g-C3N4@PPy@MnCo2O4 and g-C3N4@PPy@NiCo2O4 supercapacitors was obtained as 350.00 and 258.26 F g−1, with a current density of 0.5 A g−1, respectively. Also, capacitance retention of supercapacitors after 5000 GCD cycles was achieved by 92.71 %, and 94.55 % respectively. These results demonstrate that the decorated nanospheres on g-C3N4@PPy exhibit excellent capacitive properties and stability, indicating their potential for use in the field of energy storage. © 2024 Elsevier Ltd
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Indonesia; Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan, Taiwan; Faculty of Engineering, Warith Al-Anbiyaa University, Karbala, 56001, Iraq; Department of Petroleum Engineering, Al-Amarah University College, Maysan, Iraq; Facultad de Ingeniería, Carrera de Ingeniería Industrial, Universidad Nacional de Chimborazo (UNACH), Antonio José de Sucre Km. 1 1/2, vía a Guano, Riobamba, Ecuador; Engineering Department, College of Engineering and Computer Science, German University of Technology in Oman, Oman; Department of Public Health, College of Applied Medical Sciences, King Khalid University, Khamis Mushait Campus, Abha, Saudi Arabia; Civil Engineering Department, College of Engineering, King Khalid University, Abha, 61421, Saudi Arabia; College of Technical Engineering, The Islamic University, Najaf, Iraq; Center for Advanced Material Processing, Artificial Intelligence, and Biophysics Informatics (CAMPBIOTICS), Universitas Negeri Padang, Indonesia
Research at a Glance
Register to unlock
Topics & SDG Alignment
Register to unlock
Collaboration
Register to unlock
Author Profile (Selected)
Register to unlock
References Overview
Register to unlock
Journal & Source
Register to unlock
Metadata & Integrity
Register to unlock