The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Advanced asymmetrical supercapacitors based on graphene hybrid materials
Open accessAbstract
Supercapacitors operating in aqueous solutions are low cost energy storage devices with high cycling stability and fast charging and discharging capabilities, but generally suffer from low energy densities. Here, we grow Ni(OH)2 nanoplates and RuO2 nanoparticles on high quality graphene sheets in order to maximize the specific capacitances of these materials. We then pair up a Ni(OH)2/graphene electrode with a RuO2/graphene electrode to afford a high performance asymmetrical supercapacitor with high energy and power density operating in aqueous solutions at a voltage of ∼1.5 V. The asymmetrical supercapacitor exhibits significantly higher energy densities than symmetrical RuO2-RuO2 supercapacitors or asymmetrical supercapacitors based on either RuO2-carbon or Ni(OH)2-carbon electrode pairs. A high energy density of ∼48 W·h/kg at a power density of ∼0.23 kW/kg, and a high power density of ∼21 kW/kg at an energy density of ∼14 W·h/kg have been achieved with our Ni(OH)2/graphene and RuO2/graphene asymmetrical supercapacitor. Thus, pairing up metal-oxide/graphene and metal-hydroxide/graphene hybrid materials for asymmetrical supercapacitors represents a new approach to high performance energy storage.
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Citations
Cites
Ni(OH) 2 Nanoplates Grown on Graphene as Advanced Electrochemical Pseudocapacitor Materials
Wang, H., Casalongue, H. S., Liang, Y., & Dai, H. (2010) · Journal of the American Chemical Society · doi:10.1021/ja102267j · Cited by 2,042
Self-citationNanocrystal Growth on Graphene with Various Degrees of Oxidation
Wang, H., Robinson, J. T., Diankov, G., & Dai, H. (2010) · Journal of the American Chemical Society · doi:10.1021/ja100329d · Cited by 530
Self-citation
Cited by
Wang, H., Yang, Y., Liang, Y., Robinson, J. T., Li, Y., Jackson, A., Cui, Y., & Dai, H. (2011) · Nano Letters · doi:10.1021/nl200658a · Cited by 2,119
Self-citationLi, H. B., Yu, M. H., Wang, F. X., Liu, P., Liang, Y., Xiao, J., Wang, C. X., Tong, Y. X., & Yang, G. W. (2013) · Nature Communications · doi:10.1038/ncomms2932 · Cited by 1,256
Self-citationStrongly Coupled Inorganic/Nanocarbon Hybrid Materials for Advanced Electrocatalysis
Liang, Y., Li, Y., Wang, H., & Dai, H. (2013) · Journal of the American Chemical Society · doi:10.1021/ja3089923 · Cited by 937
Self-citationZn-doped Ni-MOF material with a high supercapacitive performance
Yang, J., Zheng, C., Xiong, P., Li, Y., & Wei, M. (2014) · J. Mater. Chem. A · doi:10.1039/c4ta04346d · Cited by 508
Faraji, S., & Ani, F. N. (2014) · Journal of Power Sources · doi:10.1016/j.jpowsour.2014.03.144 · Cited by 417
Metadata
- Authors
- Wang, H., Liang, Y., Mirfakhrai, T., Chen, Z., Casalongue, H. S., & Dai, H.
- Venue
- Nano Research
- Publisher
- Tsinghua University Press
- Published
- 2011-04-12
- Volume
- 4
- Issue
- 8
- Pages
- 729-736
- ISSN
- 1998-0000 (ISSN-L)
- 1998-0124
- OpenAlex
- W1987201246
- Cited by
- 416
- References
- 2
- FWCI
- 16.53
- Type
- journal article
- Language
- en
- Open access
- green
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