首页|Effect of Fe doping on structural, morphological and electrochemical characteristics of CuS@CNTs composite electrode material to explore the Redox mechanism in supercapattery device

Effect of Fe doping on structural, morphological and electrochemical characteristics of CuS@CNTs composite electrode material to explore the Redox mechanism in supercapattery device

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  • NSTL
  • Springer Nature
Carbon nanotubes (CNTs), which are classified as one-dimensional (1D) materials have attracted considerable interest in the scientific community due to their extraordinary electrical conductivity, enormous surface area, and chemical stability. Supercapattery, a device that combines the advantages of supercapaci-tors and batteries, has attained substantial interest due to its impressive power and energy densities. We have synthesized the binary FeCuS and FeCuS@CNTs nanocomposite through hydrothermal technique. Due to the synergistic effect, the efficiency of the electrode is improved with CNTs doping. The composite electrode FeCuS@CNTs showed an extraordinary specific capacity of 1217 Cg~(-1), exceeding the individual capacity values of iron sulfide (807 Cg~(-1)) and copper sulfide (532 Cg~(-1)). FeCuS@CNTs nanocomposite is used as the anode and activated carbon (AC) is used as the cathode in the fabrication of a supercapattery device. We achieved an extraordinary specific capacity of 342 Cg~(-1), surpassing previously reported values. The asymmetric device showed an extraordinary performance, with a power density (P_d) of 2352 W/Kg and an energy density (E_d) of 37 Wh/Kg. To check the cyclic stability, we evaluated the hybrid device for up to 1000 cycles, and it exhibited impressive capacity retention (CR) of 84% and Coulombic efficiency (CE) of 93%. Our results represent that FeCuS, with a 50:50 weight ratio and CNT doping, may be a better electrode material for asymmetric supercapacitor applications.

Muhammad Ammar Yasir、Haseebul Hassan、Nimra Muzaffar、Amir Muhammad Afzal、Muhammad Waqas Iqbal、Ayman A. Ghfar、Sohail Mumtaz、Shaik Abdul Munnaf、Faiza Anjum、M. Z. Yaqoob、Asma Zaka、Zubair Ahmad

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Department of Physics, Riphah International University, Campus Lahore, Islamabad, Pakistan

Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11457 Riyadh, Saudi Arabia

Department of Electrical and Biological Physics, Kwangwoon University, Seoul, South Korea

Department of Physics, University of Lahore, Lahore, Pakistan

Department of Physics, Government College University, Faisalabad, Pakistan

School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea

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2023

10.1007/s10854-023-11695-x

Journal of materials science. Materials in electronics

Journal of materials science. Materials in electronics

ISSN：0957-4522
年,卷(期)：2023.34(36)
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