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Title: | Diamond-Based Supercapacitors with Ultrahigh Cyclic Stability Through Dual-Phase MnO2-Graphitic Transformation Induced by High-Dose Mn-Ion Implantation | Authors: | Deshmukh, Sujit Kunuku, Srinivasu Jakobczyk, Pawel Olejnik, Adrian Chen, Chien-Hsu Niu, Huan Yang , Bing YANG, Nianjun Bogdanowicz, Robert |
Issue Date: | 2023 | Publisher: | WILEY-V C H VERLAG GMBH | Source: | ADVANCED FUNCTIONAL MATERIALS, | Status: | Early view | Abstract: | While occasionally being able to charge and discharge more quickly than batteries, carbon-based electrochemical supercapacitors (SCs) are nevertheless limited by their simplicity of processing, adjustable porosity, and lack of electrocatalytic active sites for a range of redox reactions. Even SCs based on the most stable form of carbon (sp(3) carbon/diamond) have a poor energy density and inadequate capacitance retention during long charge/discharge cycles, limiting their practical applications. To construct a SC with improved cycling stability/energy density Mn-ion implanted (high-dose; 10(15)-10(17) ions cm(-2)) boron doped diamond (Mn-BDD) films have been prepared. Mn ion implantation and post-annealing process results in an in situ graphitization (sp(2) phase) and growth of MnO2 phase with roundish granular grains on the BDD film, which is favorable for ion transport. The dual advantage of both sp(2) (graphitic phase) and sp(3) (diamond phase) carbons with an additional pseudocapacitor (MnO2) component provides a unique and critical function in achieving high-energy SC performance. The capacitance of Mn-BDD electrode in a redox active aqueous electrolyte (0.05 M Fe(CN)(6)(3-/4-) + 1 M Na2SO4) is as high as 51 mF cm(-2) at 10 mV s(-1) with exceptional cyclic stability (approximate to 100% capacitance even after 10 000 charge/discharge cycles) placing it among the best-performing SCs. Furthermore, the ultrahigh capacitance retention (approximate to 80% retention after 88 000 charge/discharge cycles) in a gel electrolyte containing a two-electrode configuration shows a promising prospect for high-rate electrochemical capacitive energy storage applications. | Notes: | Deshmukh, S; Bogdanowicz, R (corresponding author), Gdansk Univ Technol, Dept Metrol & Optoelect, Fac Elect Telecommun & Informat, 11 12 G Narutowicza Str, PL-80233 Gdansk, Poland.; Yang, NJ (corresponding author), Hasselt Univ, Dept Chem, Agoralaan Gebouw F, B-3590 Diepenbeek, Belgium.; Yang, NJ (corresponding author), Hasselt Univ, Inst Mat Res, Wetenschapspk 1, B-3590 Diepenbeek, Belgium. sujit.deshmukh@pg.edu.pl; nianjun.yang@uhasselt.be; rbogdan@eti.pg.edu.pl |
Keywords: | boron doped diamond;capacitance retention;granular grains;Mn ion implantation;pseudocapactors;redox electrolytes | Document URI: | http://hdl.handle.net/1942/41928 | ISSN: | 1616-301X | e-ISSN: | 1616-3028 | DOI: | 10.1002/adfm.202308617 | ISI #: | 001107504800001 | Rights: | 2023 The Authors. Advanced Functional Materials published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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File | Description | Size | Format | |
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Adv Funct Materials - 2023 - Deshmukh - Diamond‐Based Supercapacitors with Ultrahigh Cyclic Stability Through Dual‐Phase.pdf | Early view | 12.56 MB | Adobe PDF | View/Open |
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