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Superior Capacitive Performance of Active Carbons Derived from Loofah Sponge

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In this paper, loofah sponge-based activated carbon (LAC) is prepared via loofah sponge as precursors and KOH as activator. N2 adsorption, X-ray diffraction (XRD) and scanning electron microscope (SEM) were used to characterize the surface morphology and the structure of loofah sponge-based activated carbon. Cyclic voltammetry (CV), galvanostatic charge/discharge cycle and electrochemical impedance spectroscopy (EIS) were utilized to test electrochemical properties of loofah spongebased activated carbon. The results showed that loofah sponge-based activated carbon (LAC-700) prepared at 700 °C has the highest specific surface area (936 m2·g−1). The material delivers specific capacitance of 152.89 F·g−1 at the current density of 0.1 A·g−1, and specific capacitance of 116.69 F·g−1 at the current density of 5 A·g−1 in 30 wt% KOH aqueous electrolyte.
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Keywords: Activated Carbon; Loofah Sponge; Super Capacitors Electrode Materials

Document Type: Research Article

Affiliations: 1: Shandong Yateer Group Co., Ltd., Jinan, 250011, Shandong Province, People’s Republic of China 2: School of Mechanical Engineering, Shandong University of Technology, Zibo, 255049, Shandong Province, People’s Republic of China 3: School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255049, Shandong Province, People’s Republic of China

Publication date: April 1, 2020

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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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