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Towards ultrahigh volumetric capacitance: graphene derived highly dense but porous carbons for supercapacitors.
Sci Rep. 2013 Oct 17; 3:2975.SR

Abstract

A small volumetric capacitance resulting from a low packing density is one of the major limitations for novel nanocarbons finding real applications in commercial electrochemical energy storage devices. Here we report a carbon with a density of 1.58 g cm(-3), 70% of the density of graphite, constructed of compactly interlinked graphene nanosheets, which is produced by an evaporation-induced drying of a graphene hydrogel. Such a carbon balances two seemingly incompatible characteristics: a porous microstructure and a high density, and therefore has a volumetric capacitance for electrochemical capacitors (ECs) up to 376 F cm(-3), which is the highest value so far reported for carbon materials in an aqueous electrolyte. More promising, the carbon is conductive and moldable, and thus could be used directly as a well-shaped electrode sheet for the assembly of a supercapacitor device free of any additives, resulting in device-level high energy density ECs.

Authors+Show Affiliations

1] School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China [2].No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo 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

24131954

Citation

Tao, Ying, et al. "Towards Ultrahigh Volumetric Capacitance: Graphene Derived Highly Dense but Porous Carbons for Supercapacitors." Scientific Reports, vol. 3, 2013, p. 2975.
Tao Y, Xie X, Lv W, et al. Towards ultrahigh volumetric capacitance: graphene derived highly dense but porous carbons for supercapacitors. Sci Rep. 2013;3:2975.
Tao, Y., Xie, X., Lv, W., Tang, D. M., Kong, D., Huang, Z., Nishihara, H., Ishii, T., Li, B., Golberg, D., Kang, F., Kyotani, T., & Yang, Q. H. (2013). Towards ultrahigh volumetric capacitance: graphene derived highly dense but porous carbons for supercapacitors. Scientific Reports, 3, 2975. https://doi.org/10.1038/srep02975
Tao Y, et al. Towards Ultrahigh Volumetric Capacitance: Graphene Derived Highly Dense but Porous Carbons for Supercapacitors. Sci Rep. 2013 Oct 17;3:2975. PubMed PMID: 24131954.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Towards ultrahigh volumetric capacitance: graphene derived highly dense but porous carbons for supercapacitors. AU - Tao,Ying, AU - Xie,Xiaoying, AU - Lv,Wei, AU - Tang,Dai-Ming, AU - Kong,Debin, AU - Huang,Zhenghong, AU - Nishihara,Hirotomo, AU - Ishii,Takafumi, AU - Li,Baohua, AU - Golberg,Dmitri, AU - Kang,Feiyu, AU - Kyotani,Takashi, AU - Yang,Quan-Hong, Y1 - 2013/10/17/ PY - 2013/06/03/received PY - 2013/10/02/accepted PY - 2013/10/18/entrez PY - 2013/10/18/pubmed PY - 2013/10/18/medline SP - 2975 EP - 2975 JF - Scientific reports JO - Sci Rep VL - 3 N2 - A small volumetric capacitance resulting from a low packing density is one of the major limitations for novel nanocarbons finding real applications in commercial electrochemical energy storage devices. Here we report a carbon with a density of 1.58 g cm(-3), 70% of the density of graphite, constructed of compactly interlinked graphene nanosheets, which is produced by an evaporation-induced drying of a graphene hydrogel. Such a carbon balances two seemingly incompatible characteristics: a porous microstructure and a high density, and therefore has a volumetric capacitance for electrochemical capacitors (ECs) up to 376 F cm(-3), which is the highest value so far reported for carbon materials in an aqueous electrolyte. More promising, the carbon is conductive and moldable, and thus could be used directly as a well-shaped electrode sheet for the assembly of a supercapacitor device free of any additives, resulting in device-level high energy density ECs. SN - 2045-2322 UR - https://www.unboundmedicine.com/medline/citation/24131954/Towards_ultrahigh_volumetric_capacitance:_graphene_derived_highly_dense_but_porous_carbons_for_supercapacitors_ L2 - http://dx.doi.org/10.1038/srep02975 DB - PRIME DP - Unbound Medicine ER -
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