Journal
ACS OMEGA
Volume 5, Issue 46, Pages 29896-29902Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.0c04117
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Funding
- Province Key Laboratory of Cereal Resource Transformation and Utilization, Henan University of Technology [PL2018001]
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Improving the electrochemical performance of biomass-derived carbon electrode-active materials for supercapacitor applications has recently attracted considerable attention. Herein, we develop hybrid electrode materials from rice-husk-derived porous carbon (RH-C) materials and beta-Ni(OH)(2) via a facile solid-state reaction strategy comprising two steps. The prepared RH-C/Ni(OH)(2) (C-Ni) was investigated using scanning electron microscopy (SEM) (energy-dispersive X-ray spectrometer (EDS)), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD) to acquire the physical and chemical information, which was used to demonstrate the successful fabrication of C-Ni. Thermogravimetric analysis (TGA) measurement results confirmed that the thermal stability of C-Ni changed due to the presence of Ni(OH)(2) . As expected, C-Ni possesses a high capacitance of similar to 952 F/g at a current density of 1.0 A/g. This result is higher than that of pure biomass-based carbon materials under the three-electrode system. This facile preparation method, which was used to synthesize the electrode-active materials, can extend to the value-added utility of other waste biomass materials as high-performing supercapacitor electrodes for energy storage applications.
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