Electrodeposited Ni-Co layered double hydroxides on titanium carbide as a binder-free electrode for asymmetric supercapacitors

Abstract

List of Figures 6 List of Tables 8 Abstract 9 Chapter1 Introduction 10 1.1 Historical Introduction of electrochemical capacitors 10 1.2 Fundamentals of electrochemical capacitors 12 1.2.1 Electrical Double-Layer Supercapacitors (EDLS) 12 1.2.2 Faradaic supercapacitors (pseudocapacitors/FS) 13 1.2.3 Electrolyte 14 1.3 Advantages, challenges, and application of ES 15 1.3.1 Advantages of ES 15 1.3.2 Challenges faced by ESs 17 1.3.3 Applications of ES 17 1.4 MXene 17 1.5 Layered double hydroxides 19 Chapter 2 Experimental 21 2.1 Experimental details 21 2.1.1 Synthesis of Ti3C2 21 2.1.2 Fabrication of Ti3C2 electrodes 21 2.1.3 Electrodeposition of Ni-Co LDH on the Ti3C2 electrode 21 2.1.4 Preparation of PVA/KOH electrolyte and MWCNT negative electrode 22 2.2 Characterization of the LDH-MXene electrode 22 2.3 Characterization of the LDH-MXene electrode 23 Chapter. 3 Results and discussion 24 3.1 Fabrication of the MXene-LDH binder-free electrode 24 3.2 Characterization 25 3.3 Electrochemical evaluation 29 Chapter 4 Conclusion 36 References 37