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Designed Construction of a Graphene and Iron Oxide Freestanding Electrode with Enhanced Flexible Energy-Storage Performance.
ACS Appl Mater Interfaces. 2016 Mar 23; 8(11):6972-81.AA

Abstract

In this work, a bendable graphene@iron oxide hybrid film (GFeF) electrode was fabricated through a filtration-assisted self-assembly method. Morphological characterization of GFeF revealed a uniform distribution of iron oxide nanoparticles between graphene nanosheets. Surface chemical characterization confirmed that graphene oxide in the as-prepared hybrid film was effectively reduced after thermal reduction. The electrochemical performance of a GFeF half-cell versus Li/Li(+) exhibited high gravimetric capacity (855.2 mAh g(-1) at 0.02 A g(-1)), high volumetric capacity (1949.9 mAh cm(-3) at 0.02 A g(-1)), and superior cycling stability (93% capacitance retention after 500 cycles). On the basis of such a bendable electrode, a hybrid Li-ion supercapacitor that offers an operation voltage of 3.5 V and delivers a high energy density (129.6 Wh kg(-1)) like a Li-ion battery combined with a high power density (1870 W kg(-1)) like a supercapacitor was fabricated. In addition to the superior energy-storage capability, the as-fabricated prototype pouch cell also exhibited excellent mechanical flexibility and stable electrochemical performances under dynamic bending. The viability of such an energy-storage device provides a possible design pathway for future wearable electronics.

Authors+Show Affiliations

Department of Materials Science and Engineering, National University of Singapore , Singapore 117573, Singapore.Department of Materials Science and Engineering, National University of Singapore , Singapore 117573, Singapore.Carl Zeiss Pte. Ltd., Microscopy Business Group , Singapore 415926, Singapore.Department of Materials Science and Engineering, National University of Singapore , Singapore 117573, Singapore.Department of Materials Science and Engineering, National University of Singapore , Singapore 117573, Singapore.Department of Materials Science and Engineering, National University of Singapore , Singapore 117573, Singapore.

Pub Type(s)

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

Language

eng

PubMed ID

26926985

Citation

Li, Meng, et al. "Designed Construction of a Graphene and Iron Oxide Freestanding Electrode With Enhanced Flexible Energy-Storage Performance." ACS Applied Materials & Interfaces, vol. 8, no. 11, 2016, pp. 6972-81.
Li M, Pan F, Choo ES, et al. Designed Construction of a Graphene and Iron Oxide Freestanding Electrode with Enhanced Flexible Energy-Storage Performance. ACS Appl Mater Interfaces. 2016;8(11):6972-81.
Li, M., Pan, F., Choo, E. S., Lv, Y., Chen, Y., & Xue, J. (2016). Designed Construction of a Graphene and Iron Oxide Freestanding Electrode with Enhanced Flexible Energy-Storage Performance. ACS Applied Materials & Interfaces, 8(11), 6972-81. https://doi.org/10.1021/acsami.5b10853
Li M, et al. Designed Construction of a Graphene and Iron Oxide Freestanding Electrode With Enhanced Flexible Energy-Storage Performance. ACS Appl Mater Interfaces. 2016 Mar 23;8(11):6972-81. PubMed PMID: 26926985.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Designed Construction of a Graphene and Iron Oxide Freestanding Electrode with Enhanced Flexible Energy-Storage Performance. AU - Li,Meng, AU - Pan,Feng, AU - Choo,Eugene Shi Guang, AU - Lv,Yunbo, AU - Chen,Yu, AU - Xue,Junmin, Y1 - 2016/03/14/ PY - 2016/3/2/entrez PY - 2016/3/2/pubmed PY - 2016/3/2/medline KW - flexible device KW - freestanding film KW - graphene KW - hybrid supercapacitor KW - iron oxide SP - 6972 EP - 81 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 8 IS - 11 N2 - In this work, a bendable graphene@iron oxide hybrid film (GFeF) electrode was fabricated through a filtration-assisted self-assembly method. Morphological characterization of GFeF revealed a uniform distribution of iron oxide nanoparticles between graphene nanosheets. Surface chemical characterization confirmed that graphene oxide in the as-prepared hybrid film was effectively reduced after thermal reduction. The electrochemical performance of a GFeF half-cell versus Li/Li(+) exhibited high gravimetric capacity (855.2 mAh g(-1) at 0.02 A g(-1)), high volumetric capacity (1949.9 mAh cm(-3) at 0.02 A g(-1)), and superior cycling stability (93% capacitance retention after 500 cycles). On the basis of such a bendable electrode, a hybrid Li-ion supercapacitor that offers an operation voltage of 3.5 V and delivers a high energy density (129.6 Wh kg(-1)) like a Li-ion battery combined with a high power density (1870 W kg(-1)) like a supercapacitor was fabricated. In addition to the superior energy-storage capability, the as-fabricated prototype pouch cell also exhibited excellent mechanical flexibility and stable electrochemical performances under dynamic bending. The viability of such an energy-storage device provides a possible design pathway for future wearable electronics. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/26926985/Designed_Construction_of_a_Graphene_and_Iron_Oxide_Freestanding_Electrode_with_Enhanced_Flexible_Energy_Storage_Performance_ DB - PRIME DP - Unbound Medicine ER -
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