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Title: | High-performance supercabatteries using graphite@diamond nano-needle capacitor electrodes and redox electrolytes | Authors: | Yu, Siyu KAMATCHI JOTHIRAMALINGAM, Sankaran Korneychuk, Svetlana Verbeeck, Johan HAENEN, Ken Jiang, Xin Yang, Nianjun |
Issue Date: | 2019 | Publisher: | ROYAL SOC CHEMISTRY | Source: | NANOSCALE, 11(38), p. 17939-17946 | Abstract: | Supercabatteries have the characteristics of supercapacitors and batteries, namely high power and energy densities as well as long cycle life. To construct them, capacitor electrodes with wide potential windows and/or redox electrolytes are required. Herein, graphite@diamond nano-needles and an aqueous solution of Fe(CN)(6)(3-/4-) are utilized as the capacitor electrode and the electrolyte, respectively. This diamond capacitor electrode has a nitrogen-doped diamond core and a nano-graphitic shell. In 0.05 M Fe(CN)(6)(3-/4-) + 1.0 M Na2SO4 aqueous solution, the fabricated supercabattery has a capacitance of 66.65 mF cm(-2) at a scan rate of 10 mV s(-1). It is stable over 10 000 charge/discharge cycles. The symmetric supercabattery device assembled using a two-electrode system possesses energy and power densities of 10.40 W h kg(-1) and 6.96 kW kg(-1), respectively. These values are comparable to those of other energy storage devices. Therefore, diamond supercabatteries are promising for many industrial applications. | Notes: | [Yu, Siyu; Jiang, Xin; Yang, Nianjun] Univ Siegen, Inst Mat Engn, D-57076 Siegen, Germany. [Yu, Siyu] Southwest Univ, Sch Chem & Chem Engn, Chongqing 400715, Peoples R China. [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. [Korneychuk, Svetlana; Verbeeck, Johan] Univ Antwerp, Electron Microscopy Mat Sci EMAT, B-2020 Antwerp, Belgium. | Keywords: | Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied | Document URI: | http://hdl.handle.net/1942/29974 | ISSN: | 2040-3364 | e-ISSN: | 2040-3372 | DOI: | 10.1039/c9nr07037k | ISI #: | 000489646900036 | Rights: | The Royal Society of Chemistry 2019 Open Access Article. Published on 06 September 2019. Downloaded on 11/13/2019 2:23:01 PM. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2020 |
Appears in Collections: | Research publications |
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