Perylene diimide incorporated activated carbon as a composite electrode for asymmetric supercapacitor

Supramolecular Engineering of Ti3C2Tx MXene ‐Perylene Diimide Hybrid Electrodes for the Pseudocapacitive Electrochemical Storage of Calcium Ions

“…[31,32] Perylene diimides (PDIs) are n-type semiconducting [33] polyaromatic hydrocarbons and are inexpensive industrial organic pigments, which are known to show reversible electrochemical behavior. [34][35][36][37][38] Recently, molecular contortion effects and covalent polymerization strategies were employed in designing high-performance pseudocapacitive perylene diimide-hexaazatrinaphthylene (PHATN) organic network. [37] High-rate pseudocapacitance was demonstrated in 6 m KOH electrolyte with a specific capacitance of ≈690 F g −1 at 0.5 A g −1 .…”

Preparation of Positive and Negative Composite Electrode Materials for High-Performance Aqueous Asymmetric Supercapacitor by a Sequential Two-Step Reaction

“…If appropriate organic electrode materials with different types of doping are selected to assemble asymmetric devices, one electrode is p-doping while the other is n-doping, which could provide high energy density. − However, the electrical conductivity of redox-active organic compounds has been limited by the degree of doping, resulting in the inability to utilize those advantages fully. Therefore, researchers have primarily focused on attaching organic materials to highly conductive carbon-based materials, such as activated carbon, carbon nanotubes, , and graphene , via π–π stacking, hydrogen bonding, and other noncovalent interactions. , To further increase the energy density, these composite electrode materials are utilized in the assembly of asymmetric devices. − For example, Jiao et al assembled asymmetric supercapacitors by fabricating redox-active PPA/rGO and GH-DN for the positive and negative electrodes, respectively. Kandambeth et al synthesized redox COFs structures for the negative electrode and assembled asymmetric supercapacitors using RuO 2 as the positive electrode.…”

“…24−28 However, the electrical conductivity of redoxactive organic compounds has been limited by the degree of doping, resulting in the inability to utilize those advantages fully. Therefore, researchers have primarily focused on attaching organic materials to highly conductive carbonbased materials, such as activated carbon, 29 tubes, 30,31 and graphene 32,33 via π−π stacking, hydrogen bonding, and other noncovalent interactions. 34,35 To further increase the energy density, these composite electrode materials are utilized in the assembly of asymmetric devices.…”

Rational Design of Ultrastable Conjugated Microporous Polymers Based on Pyrene and Perylene Units as High-Performance Organic Electrode Materials for Supercapacitor Applications

“…Various methods have been employed to synthesize CMPs, including conventional coupling techniques like Sonogashira–Hagihara, − Suzuki–Miyaura, − and Yamamoto coupling, , as well as oxidative polymerization. − These methods have been used to create CMPs with diverse structures and properties. , In particular, quinones (phenols) and their derivatives, which are organic compounds with a benzoquinone structure, have been widely used in batteries and other devices that store energy. − With their outstanding cheap cost, morphological variety, great theoretical capacity, versatility, and sustainability, these molecules are a rare find. The favorable electrochemical characteristics of organic molecules, such as cycle stabilities and acceptable energy densities, have led to increased interest in their application within the field of SCs. , Recently, there has been growing attention toward the utilization of redox-active small organic compounds in organic SCs (OSCs). ,, OSCs possess the necessary redox properties, structural flexibility, sustainability, and a minimal ecological footprint.…”