Green Synthesis of Free Standing Cellulose/Graphene Oxide/Polyaniline Aerogel Electrode for High-Performance Flexible All-Solid-State Supercapacitors

Li, Yueqin; Xia, Zongbiao; Gong, Qiang; Liu, Xiaohui; Yang, Yong; Chen, Chen; Qian, Changhao

doi:10.3390/nano10081546

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Green Synthesis of Free Standing Cellulose/Graphene Oxide/Polyaniline Aerogel Electrode for High-Performance Flexible All-Solid-State Supercapacitors

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Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China

College of Chemical Engineering, Jiangsu Key Lab for the Chemistry and Utilization of Agricultural and Forest Biomass, Nanjing Forestry University, Nanjing 210037, China

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Nanomaterials 2020, 10(8), 1546; https://doi.org/10.3390/nano10081546

Received: 18 July 2020 / Revised: 2 August 2020 / Accepted: 3 August 2020 / Published: 7 August 2020

(This article belongs to the Section Energy and Catalysis)

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Abstract

The cellulose/graphene oxide (GO) networks as the scaffold of free-standing aerogel electrodes are developed by using lithium bromide aqueous solution, as the solvent, to ensure the complete dissolution of cotton linter pulp and well dispersion/reduction of GO nanosheets. Polyaniline (PANI) nanoclusters are then coated onto cellulose/GO networks via in-situ polymerization of aniline monomers. By optimized weight ratio of GO and PANI, the ternary cellulose/GO_3.5/PANI aerogel film exhibits well-defined three-dimensional porous structures and high conductivity of 1.15 S/cm, which contributes to its high areal specific capacitance of 1218 mF/cm² at the current density of 1.0 mA/cm². Utilizing this cellulose/GO_3.5/PANI aerogel film as electrodes in a symmetric configuration supercapacitor can result in an outstanding energy density as high as 258.2 µWh/cm² at a power density of 1201.4 µW/cm². Moreover, the device can maintain nearly constant capacitance under different bending deformations, suggesting its promising applications in flexible electronics. View Full-Text

Keywords: cellulose; graphene oxide; polyaniline; aerogel electrode; supercapacitors

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Li, Y.; Xia, Z.; Gong, Q.; Liu, X.; Yang, Y.; Chen, C.; Qian, C. Green Synthesis of Free Standing Cellulose/Graphene Oxide/Polyaniline Aerogel Electrode for High-Performance Flexible All-Solid-State Supercapacitors. Nanomaterials 2020, 10, 1546. https://doi.org/10.3390/nano10081546

AMA Style

Li Y, Xia Z, Gong Q, Liu X, Yang Y, Chen C, Qian C. Green Synthesis of Free Standing Cellulose/Graphene Oxide/Polyaniline Aerogel Electrode for High-Performance Flexible All-Solid-State Supercapacitors. Nanomaterials. 2020; 10(8):1546. https://doi.org/10.3390/nano10081546

Chicago/Turabian Style

Li, Yueqin, Zongbiao Xia, Qiang Gong, Xiaohui Liu, Yong Yang, Chen Chen, and Changhao Qian. 2020. "Green Synthesis of Free Standing Cellulose/Graphene Oxide/Polyaniline Aerogel Electrode for High-Performance Flexible All-Solid-State Supercapacitors" Nanomaterials 10, no. 8: 1546. https://doi.org/10.3390/nano10081546

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Green Synthesis of Free Standing Cellulose/Graphene Oxide/Polyaniline Aerogel Electrode for High-Performance Flexible All-Solid-State Supercapacitors

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