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Incorporating nanoporous polyaniline into layer-by-layer ionic liquid-carbon nanotube-graphene paper: towards freestanding flexible electrodes with improved supercapacitive performance.
Nanotechnology. 2015 Sep 18; 26(37):374002.N

Abstract

The growing demand for lightweight and flexible supercapacitor devices necessitates innovation in electrode materials and electrode configuration. We have developed a new type of three-dimensional (3D) flexible nanohybrid electrode by incorporating nanoporous polyaniline (PANI) into layer-by-layer ionic liquid (IL) functionalized carbon nanotube (CNT)-graphene paper (GP), and explored its practical application as a freestanding flexible electrode in a supercapacitor. Our results have demonstrated that the surface modification of graphene nanosheets and CNTs by hydrophilic IL molecules makes graphene and CNTs well-dispersed in aqueous solution, and also improves the hydrophility of the assembled graphene-based paper. Furthermore, the integration of highly conductive one-dimensional (1D) CNTs with two-dimensional (2D) graphene nanosheets leads to 3D sandwich-structured nanohybrid paper with abundant interconnected pores, which is preferred for fast mass and electron transport kinetics. For in situ electropolymerization of PANI on paper electrodes, the IL functionalized CNT-GP (IL-CNT-GP) offers large surface area and interlayer spacing and the unique π surface of graphene and CNTs for efficient and stable loading of PANI. A key finding is that the structural integration of multiple components in this 3D freestanding flexible sheet electrode gives rise to a synergic effect, leading to a high capacitance of 725.6 F g(-1) at a current density of 1 A g(-1) and good cycling stability by retaining 90% of the initial specific capacitance after 5000 cycles.

Authors+Show Affiliations

School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430073, People's Republic of China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26314327

Citation

Sun, Yimin, et al. "Incorporating Nanoporous Polyaniline Into Layer-by-layer Ionic Liquid-carbon Nanotube-graphene Paper: Towards Freestanding Flexible Electrodes With Improved Supercapacitive Performance." Nanotechnology, vol. 26, no. 37, 2015, p. 374002.
Sun Y, Fang Z, Wang C, et al. Incorporating nanoporous polyaniline into layer-by-layer ionic liquid-carbon nanotube-graphene paper: towards freestanding flexible electrodes with improved supercapacitive performance. Nanotechnology. 2015;26(37):374002.
Sun, Y., Fang, Z., Wang, C., Zhou, A., & Duan, H. (2015). Incorporating nanoporous polyaniline into layer-by-layer ionic liquid-carbon nanotube-graphene paper: towards freestanding flexible electrodes with improved supercapacitive performance. Nanotechnology, 26(37), 374002. https://doi.org/10.1088/0957-4484/26/37/374002
Sun Y, et al. Incorporating Nanoporous Polyaniline Into Layer-by-layer Ionic Liquid-carbon Nanotube-graphene Paper: Towards Freestanding Flexible Electrodes With Improved Supercapacitive Performance. Nanotechnology. 2015 Sep 18;26(37):374002. PubMed PMID: 26314327.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Incorporating nanoporous polyaniline into layer-by-layer ionic liquid-carbon nanotube-graphene paper: towards freestanding flexible electrodes with improved supercapacitive performance. AU - Sun,Yimin, AU - Fang,Zheng, AU - Wang,Chenxu, AU - Zhou,Aijun, AU - Duan,Hongwei, Y1 - 2015/08/28/ PY - 2015/8/29/entrez PY - 2015/9/1/pubmed PY - 2015/9/1/medline SP - 374002 EP - 374002 JF - Nanotechnology JO - Nanotechnology VL - 26 IS - 37 N2 - The growing demand for lightweight and flexible supercapacitor devices necessitates innovation in electrode materials and electrode configuration. We have developed a new type of three-dimensional (3D) flexible nanohybrid electrode by incorporating nanoporous polyaniline (PANI) into layer-by-layer ionic liquid (IL) functionalized carbon nanotube (CNT)-graphene paper (GP), and explored its practical application as a freestanding flexible electrode in a supercapacitor. Our results have demonstrated that the surface modification of graphene nanosheets and CNTs by hydrophilic IL molecules makes graphene and CNTs well-dispersed in aqueous solution, and also improves the hydrophility of the assembled graphene-based paper. Furthermore, the integration of highly conductive one-dimensional (1D) CNTs with two-dimensional (2D) graphene nanosheets leads to 3D sandwich-structured nanohybrid paper with abundant interconnected pores, which is preferred for fast mass and electron transport kinetics. For in situ electropolymerization of PANI on paper electrodes, the IL functionalized CNT-GP (IL-CNT-GP) offers large surface area and interlayer spacing and the unique π surface of graphene and CNTs for efficient and stable loading of PANI. A key finding is that the structural integration of multiple components in this 3D freestanding flexible sheet electrode gives rise to a synergic effect, leading to a high capacitance of 725.6 F g(-1) at a current density of 1 A g(-1) and good cycling stability by retaining 90% of the initial specific capacitance after 5000 cycles. SN - 1361-6528 UR - https://www.unboundmedicine.com/medline/citation/26314327/Incorporating_nanoporous_polyaniline_into_layer_by_layer_ionic_liquid_carbon_nanotube_graphene_paper:_towards_freestanding_flexible_electrodes_with_improved_supercapacitive_performance_ L2 - https://doi.org/10.1088/0957-4484/26/37/374002 DB - PRIME DP - Unbound Medicine ER -
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