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Sandwich-structured nanohybrid paper based on controllable growth of nanostructured MnO2 on ionic liquid functionalized graphene paper as a flexible supercapacitor electrode.
Nanoscale. 2015 May 07; 7(17):7790-801.N

Abstract

A sandwich-structured flexible supercapacitor electrode has been developed based on MnO2 nanonest (MNN) modified ionic liquid (IL) functionalized graphene paper (GP), which is fabricated by functionalizing graphene nanosheets with an amine-terminated IL (i.e., 1-(3-aminopropyl)-3-methylimidazolium bromide) to form freestanding IL functionalized GP (IL-GP), and then modifying IL-GP with a unique MNN structure via controllable template-free ultrasonic electrodeposition. The as-obtained MNN modified IL-GP (MNN/IL-GP) inherits the excellent pseudocapacity of the metal oxide, the high conductivity and electric double layer charging/discharging of IL-graphene composites, and therefore shows an enhanced supercapacitor performance. The maximum specific capacitance of 411 F g(-1) can be achieved by chronopotentiometry at a current density of 1 A g(-1). Meanwhile, the MNN/IL-GP electrode exhibits excellent rate capability and cycling stability, its specific capacitance is maintained at 70% as the current densities increase from 1 to 20 A g(-1) and 85% at a current density of 10 A g(-1) after 10 000 cycles. More importantly, the MNN/IL-GP displays distinguished mechanical stability and flexibility for device packaging, although its thickness is merely 8 μm. These features collectively demonstrate the potential of MNN/IL-GP as a high-performance paper electrode for flexible and lightweight and highly efficient electrochemical capacitor applications.

Authors+Show Affiliations

School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430073, People's Republic of China. ymsun1982@hotmail.com.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25848920

Citation

Sun, Yimin, et al. "Sandwich-structured Nanohybrid Paper Based On Controllable Growth of Nanostructured MnO2 On Ionic Liquid Functionalized Graphene Paper as a Flexible Supercapacitor Electrode." Nanoscale, vol. 7, no. 17, 2015, pp. 7790-801.
Sun Y, Fang Z, Wang C, et al. Sandwich-structured nanohybrid paper based on controllable growth of nanostructured MnO2 on ionic liquid functionalized graphene paper as a flexible supercapacitor electrode. Nanoscale. 2015;7(17):7790-801.
Sun, Y., Fang, Z., Wang, C., Ariyawansha, K. R., Zhou, A., & Duan, H. (2015). Sandwich-structured nanohybrid paper based on controllable growth of nanostructured MnO2 on ionic liquid functionalized graphene paper as a flexible supercapacitor electrode. Nanoscale, 7(17), 7790-801. https://doi.org/10.1039/c5nr00946d
Sun Y, et al. Sandwich-structured Nanohybrid Paper Based On Controllable Growth of Nanostructured MnO2 On Ionic Liquid Functionalized Graphene Paper as a Flexible Supercapacitor Electrode. Nanoscale. 2015 May 7;7(17):7790-801. PubMed PMID: 25848920.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sandwich-structured nanohybrid paper based on controllable growth of nanostructured MnO2 on ionic liquid functionalized graphene paper as a flexible supercapacitor electrode. AU - Sun,Yimin, AU - Fang,Zheng, AU - Wang,Chenxu, AU - Ariyawansha,K R Rakhitha Malinga, AU - Zhou,Aijun, AU - Duan,Hongwei, PY - 2015/4/8/entrez PY - 2015/4/8/pubmed PY - 2015/4/8/medline SP - 7790 EP - 801 JF - Nanoscale JO - Nanoscale VL - 7 IS - 17 N2 - A sandwich-structured flexible supercapacitor electrode has been developed based on MnO2 nanonest (MNN) modified ionic liquid (IL) functionalized graphene paper (GP), which is fabricated by functionalizing graphene nanosheets with an amine-terminated IL (i.e., 1-(3-aminopropyl)-3-methylimidazolium bromide) to form freestanding IL functionalized GP (IL-GP), and then modifying IL-GP with a unique MNN structure via controllable template-free ultrasonic electrodeposition. The as-obtained MNN modified IL-GP (MNN/IL-GP) inherits the excellent pseudocapacity of the metal oxide, the high conductivity and electric double layer charging/discharging of IL-graphene composites, and therefore shows an enhanced supercapacitor performance. The maximum specific capacitance of 411 F g(-1) can be achieved by chronopotentiometry at a current density of 1 A g(-1). Meanwhile, the MNN/IL-GP electrode exhibits excellent rate capability and cycling stability, its specific capacitance is maintained at 70% as the current densities increase from 1 to 20 A g(-1) and 85% at a current density of 10 A g(-1) after 10 000 cycles. More importantly, the MNN/IL-GP displays distinguished mechanical stability and flexibility for device packaging, although its thickness is merely 8 μm. These features collectively demonstrate the potential of MNN/IL-GP as a high-performance paper electrode for flexible and lightweight and highly efficient electrochemical capacitor applications. SN - 2040-3372 UR - https://www.unboundmedicine.com/medline/citation/25848920/Sandwich_structured_nanohybrid_paper_based_on_controllable_growth_of_nanostructured_MnO2_on_ionic_liquid_functionalized_graphene_paper_as_a_flexible_supercapacitor_electrode_ L2 - https://doi.org/10.1039/c5nr00946d DB - PRIME DP - Unbound Medicine ER -
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