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Facile Fabrication of NiCo2O4@g-C3N4(C) Hybrids for High-Performance Supercapacitors

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The rational design and synthesis of electrode materials with large specific capacitance and good cycling stability have gained tremendous attention but remained as a challenge. Herein, NiCo2O4@g-C3N4(C) hybrid was synthesized by growing spinel nickel cobaltite (NiCo2O4) on the carbon doped graphitic carbon nitride (g-C3N4(C)). The elegant synergy between NiCo2O4 and g-C3N4(C) leads to a high specific capacitance of 325.7 F·g−1 at the current density of 1 A·g−1 and an exceptional cycling stability (93.6% retention after 2000 cycles). NiCo2O4@g-C3N4(C) hybrid asymmetric capacitor was assembled and electrochemical tests showed that asymmetric capacitor possesses high power density (15.1 kW·kg−1) and superior cycling stability (83.5% retention after 2000 cycles).
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Keywords: Carbon Nitride; Doping; Nanocomposites; NiCo2O4; Supercapacitors

Document Type: Research Article

Affiliations: 1: State Key Laboratory of Mechanical Transmissions, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, P. R. China 2: Chongqing Key Laboratory of Catalysis and Functional Organic Molecules, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, P. R. China

Publication date: January 1, 2019

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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