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Title: | 3D Hierarchical Boron-Doped Diamond-Multilayered Graphene Nanowalls as an Efficient Supercapacitor Electrode | Authors: | Banerjee, Debosmita KAMATCHI JOTHIRAMALINGAM, Sankaran Deshmukh, Sujit Ficek, Mateusz Bhattacharya, Gourav Ryl, Jacek Phase, Deodatta Maheshwar Gupta, Mukul Bogdanowicz, Robert Lin, I-Nan Kanjilal, Aloke HAENEN, Ken Roy, Susanta Sinha |
Issue Date: | 2019 | Publisher: | AMER CHEMICAL SOC | Source: | JOURNAL OF PHYSICAL CHEMISTRY C, 123(25), p. 15458-15466 | 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 sp(2)-bonded graphene has been integrated with and over a three-dimensional curved wall-like network of sp(3)-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. | Notes: | [Banerjee, Debosmita; Deshmukh, Sujit; Bhattacharya, Gourav; Kanjilal, Aloke; Roy, Susanta Sinha] Shiv Nadar Univ, Sch Nat Sci, Dept Phys, NH-91, Gautam Buddha Nagar 201314, Uttar Pradesh, India. [Sankaran, Kamatchi Jothiramalingam; Haenen, Ken] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium. [Sankaran, Kamatchi Jothiramalingam; Haenen, Ken] IMEC Vzw, IMOMEC, B-3590 Diepenbeek, Belgium. [Ficek, Mateusz; Bogdanowicz, Robert] Gdansk Univ Technol, Fac Elect Telecommun & Informat, Dept Metrol & Optoelect, Gabriela Narutowicza 11-12, PL-80233 Gdansk, Poland. [Ryl, Jacek] Gdansk Univ Technol, Fac Chem, Dept Electrochem Corros & Mat Engn, Gabriela Narutowicza 11-12, PL-80233 Gdansk, Poland. [Phase, Deodatta Maheshwar; Gupta, Mukul] UGC DAE Consortium Sci Res, Khandwa Rd, Indore 452001, Madhya Pradesh, India. [Lin, I-Nan] Tamkang Univ, Dept Phys, Tamsui 251, Taiwan. | Document URI: | http://hdl.handle.net/1942/29643 | ISSN: | 1932-7447 | e-ISSN: | 1932-7455 | DOI: | 10.1021/acs.jpcc.9b03628 | ISI #: | 000473251300010 | Rights: | 2019 American Chemical Society | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2020 |
Appears in Collections: | Research publications |
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