A Novel High-Performance Anode Material with an Enlarged Potential Window for a Hybrid Energy Storage System

Abdul Mateen, Muhammad Zubair, Muhammad Saleem, Alexandra Golubenkova, Leonid Voskressensky, Asma A. Alothman, Mohamed Ouladsmane, Awais Ahmad () and Muhammad Sufyan Javed ()
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Abdul Mateen: Department of Physics and Beijing Key Laboratory of Energy Conversion and Storage Materials, Beijing Normal University, Beijing 100084, China
Muhammad Zubair: Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
Muhammad Saleem: Department of Physics, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
Alexandra Golubenkova: Department of Organic Chemistry, Faculty of Science, Peoples Friendship University of Russia (RUDN University), Miklukho Maklaya Str., 117198 Moscow, Russia
Leonid Voskressensky: Department of Organic Chemistry, Faculty of Science, Peoples Friendship University of Russia (RUDN University), Miklukho Maklaya Str., 117198 Moscow, Russia
Asma A. Alothman: Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Mohamed Ouladsmane: Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
Awais Ahmad: Departamento de Quimica Organica, Universidad de Cordoba, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, E14014 Cordoba, Spain
Muhammad Sufyan Javed: School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China

Energies, 2022, vol. 15, issue 24, 1-12

Abstract: Cobalt-iron (CoFe) layered double hydroxides (LDHs) have received much interest for supercapacitors (SCs) because of their ion-insertable layer structure. However, there is still a need for more effort to increase their potential window and overall electrochemical energy storage capability as SC electrodes. In this work, we present a straightforward approach to synthesizing CoFe-LDHs on zinc oxide seeded carbon cloth (ZnO@CC) via a one-step hydrothermal reaction; the obtained electrode is denoted as CoFe-LDH@ZnO@CC. The electrochemical energy storage properties of CoFe-LDH@ZnO@CC are tested as an anode material using a three-electrode setup for SC applications in 1 M Na 2 SO 4 electrolyte. It can operate in a wider potential window reaching up to 1.6 V, exceeding most previously reported anode materials. The CoFe-LDH@ZnO@CC displayed capacitive charge storage accounting for 76% of the total charge stored at 20 mV/s. The CoFe-LDH@ZnO@CC anode delivered a maximum capacitance of 299.8 F/g at 2 A/g, outstanding cycle stability, and retained 97.7% of the initial capacitance value for 5000 cycles at 16 A/g. This study introduces a new strategy for structurally designing electroactive materials for energy storage devices, which might be useful as an anode for SCs.

Keywords: cobalt; iron; layered double hydroxides; anode; supercapacitors (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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