{"title":"Nanostructured nickel doped manganese oxide/polypyrrole/graphitic carbon nitride hydrogel as high-performance supercapacitor electrodes","authors":"Priya Siwach , Latisha Gaba , Kanika Aggarwal , Sajjan Dahiya , Rajesh Punia , A.S. Maan , Kuldeep Singh , Yedluri Anil Kumar , Ayman A. Ghfar , Anil Ohlan","doi":"10.1016/j.flatc.2024.100778","DOIUrl":null,"url":null,"abstract":"<div><div>Polypyrrole hydrogel (PH) attributing high electrical conductivity, intriguing redox properties, ease of synthesis and environmental friendliness, is a prospective electrode material for supercapacitors (SCs). This work presented details of the synthesis of pH and its binary and ternary nanocomposites. The ternary nanocomposite PPy-GCN-NMO (PGNMO), synthesized via in-situ oxidative polymerization, demonstrates an exclusive combination of morphologies, leading to excellent supercapacitive performance. The strategically chosen synergy of electric double-layer capacitance (EDLC) and pseudocapacitive materials helps in overcoming the limitation of individual elements and collectively accounts for excellent supercapacitive performance. Electrochemical studies of PGNMO electrode provides an excellent specific capacitance (C<sub>s</sub>) of 3611 F/g at 1 A/g. Moreover, the fabricated symmetric device of PGNMO exhibits impressive C<sub>s</sub> of 588 F/g at 1 A/g, and exceptional cycle stability with 104.3 % retention after 6000 cycles. Additionally, the device delivers appreciable specific energy of 40.1 Wh/kg at 1587.6 W/kg, positioning PGNMO to the forefront of flexible electrodes for SCs.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"48 ","pages":"Article 100778"},"PeriodicalIF":5.9000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"FlatChem","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452262724001727","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Polypyrrole hydrogel (PH) attributing high electrical conductivity, intriguing redox properties, ease of synthesis and environmental friendliness, is a prospective electrode material for supercapacitors (SCs). This work presented details of the synthesis of pH and its binary and ternary nanocomposites. The ternary nanocomposite PPy-GCN-NMO (PGNMO), synthesized via in-situ oxidative polymerization, demonstrates an exclusive combination of morphologies, leading to excellent supercapacitive performance. The strategically chosen synergy of electric double-layer capacitance (EDLC) and pseudocapacitive materials helps in overcoming the limitation of individual elements and collectively accounts for excellent supercapacitive performance. Electrochemical studies of PGNMO electrode provides an excellent specific capacitance (Cs) of 3611 F/g at 1 A/g. Moreover, the fabricated symmetric device of PGNMO exhibits impressive Cs of 588 F/g at 1 A/g, and exceptional cycle stability with 104.3 % retention after 6000 cycles. Additionally, the device delivers appreciable specific energy of 40.1 Wh/kg at 1587.6 W/kg, positioning PGNMO to the forefront of flexible electrodes for SCs.
期刊介绍:
FlatChem - Chemistry of Flat Materials, a new voice in the community, publishes original and significant, cutting-edge research related to the chemistry of graphene and related 2D & layered materials. The overall aim of the journal is to combine the chemistry and applications of these materials, where the submission of communications, full papers, and concepts should contain chemistry in a materials context, which can be both experimental and/or theoretical. In addition to original research articles, FlatChem also offers reviews, minireviews, highlights and perspectives on the future of this research area with the scientific leaders in fields related to Flat Materials. Topics of interest include, but are not limited to, the following: -Design, synthesis, applications and investigation of graphene, graphene related materials and other 2D & layered materials (for example Silicene, Germanene, Phosphorene, MXenes, Boron nitride, Transition metal dichalcogenides) -Characterization of these materials using all forms of spectroscopy and microscopy techniques -Chemical modification or functionalization and dispersion of these materials, as well as interactions with other materials -Exploring the surface chemistry of these materials for applications in: Sensors or detectors in electrochemical/Lab on a Chip devices, Composite materials, Membranes, Environment technology, Catalysis for energy storage and conversion (for example fuel cells, supercapacitors, batteries, hydrogen storage), Biomedical technology (drug delivery, biosensing, bioimaging)