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3D Hierarchical Boron-Doped Diamond-Multilayered Graphene Nanowalls as an Efficient Supercapacitor Electrode
Abstract
Synthesis of stable hybrid carbon nanostructure for high-performance supercapacitor electrode with long life-cycle for electronic and energy storage devices is a real challenge. Here, we present a one-step synthesis method to produce conductive boron-doped hybrid carbon nanowalls (HCNWs), where sp2-bonded graphene has been integrated with and over a three-dimensional curved wall-like network of sp3-bonded diamond. The spectroscopic studies such as X-ray absorption, Raman, and X-ray photoelectrons clearly reveal the coexistence of diamond and graphene in these nanowalls, while the detailed transmission electron microscopy studies confirm the unique microstructure where a diamond nanowall is encased by a multilayered graphene. Interestingly, these HCNWs yield a high double layer capacitance value of 0.43 mF cm–2 and electrode retention of 98% over 10 000 cycles of charging/discharging in 1 M Na2SO4 electrolyte. The remarkable supercapacitive performance can be attributed to the 3D interconnected network of diamond nanowalls surrounded by highly conducting graphene.
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Authors (13)
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Debosmita Banerjee
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Sankaran Kamatchi
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Deshmukh Sujit
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Bhattacharya Gourav
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Deodatta Maheshwar Phase
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Mukul Gupta
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I-Nan Lin prof.
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Aloke Kanjilal
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Ken Haenen
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Susanta Sinha Roy
Cite as
Full text
- Publication version
- Accepted or Published Version
- License
- Copyright (2019 American Chemical Society)
Keywords
Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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Journal of Physical Chemistry C
no. 123,
pages 15458 - 15466,
ISSN: 1932-7447 - Language:
- English
- Publication year:
- 2019
- Bibliographic description:
- Banerjee D., Kamatchi S., Sujit D., Ficek M., Gourav B., Ryl J., Maheshwar Phase D., Gupta M., Bogdanowicz R., Lin I., Kanjilal A., Haenen K., Sinha Roy S.: 3D Hierarchical Boron-Doped Diamond-Multilayered Graphene Nanowalls as an Efficient Supercapacitor Electrode// Journal of Physical Chemistry C. -Vol. 123, iss. 25 (2019), s.15458-15466
- DOI:
- Digital Object Identifier (open in new tab) 10.1021/acs.jpcc.9b03628
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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