One-Step Electrodeposition of a Nanoflower-like FeOOH/Ti3C2Tx Composite for Enhanced Supercapacitor Performance
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The preprint studied fabrication of a nanoflower-like FeOOH/Ti3C2Tx (MXene) composite electrode via one-step electrochemical deposition on nickel foam, using electrostatic attraction between negatively charged Ti3C2Tx and Fe3+ ions to drive formation of the composite. The authors report that FeOOH inhibits restacking of Ti3C2Tx nanosheets, while the flexible Ti3C2Tx layers reduce structural deformation and volume expansion of FeOOH during electrochemical cycling, preserving electrode integrity. The optimized electrode achieved an areal specific capacitance of 745 mF cm−2 at 1 mA cm−2, and an asymmetric device with an MnO2-deposited carbon paper cathode reached 270.3 mWh cm−2 at 1003.5 mW cm−2 with 86% capacitance retention after 15,000 cycles at 7 mA cm−2. As an explicit caveat, the work is presented as an unreviewed preprint, so peer-reviewed validation is not provided. The paper does not explicitly discuss endometriosis or adenomyosis; it was included in the corpus via a keyword match in the upstream search index.
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Abstract
Abstract To fabricate supercapacitors with high energy density, a nanoflower-like FeOOH/Ti 3 C 2 T x composite electrode was developed using one-step electrochemical deposition. Leveraging the electrostatic interaction between negatively charged Ti 3 C 2 T x and Fe 3+ ions under an electric field, a nanoflower-like FeOOH/Ti 3 C 2 T x composite formed on the nickel foam. The presence of FeOOH effectively inhibited the restacking of Ti 3 C 2 T x nanosheets, while the flexible Ti 3 C 2 T x layers mitigated structural deformation and volume expansion of FeOOH during electrochemical cycling, thereby preserving the structural integrity of the electrode. The optimized electrode delivered a high areal specific capacitance of 745 mF cm -2 at 1 mA cm -2 . An asymmetric supercapacitor, assembled with the as-prepared anode and an MnO 2 -deposited carbon paper cathode, achieved an energy density of 270.3 mWh cm -2 at a power density of 1003.5 mW cm -2 , and exhibited outstanding cycling stability, retaining 86% of its initial capacitance after 15,000 cycles at 7 mA cm -2 . These results highlighted the strong potential of the nanoflower-like FeOOH/Ti 3 C 2 T x composite electrode for practical energy storage applications.
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One-Step Electrodeposition of a Nanoflower-like FeOOH/Ti3C2Tx Composite for Enhanced Supercapacitor Performance | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article One-Step Electrodeposition of a Nanoflower-like FeOOH/Ti 3 C 2 T x Composite for Enhanced Supercapacitor Performance Shisen Bo, Ruifeng Liu, Fang Lei, Mei Wang, Tantan Liu, Yu-Ting Liu, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9412381/v1 This work is licensed under a CC BY 4.0 License Status: Under Revision Version 1 posted 18 You are reading this latest preprint version Abstract To fabricate supercapacitors with high energy density, a nanoflower-like FeOOH/Ti 3 C 2 T x composite electrode was developed using one-step electrochemical deposition. Leveraging the electrostatic interaction between negatively charged Ti 3 C 2 T x and Fe 3+ ions under an electric field, a nanoflower-like FeOOH/Ti 3 C 2 T x composite formed on the nickel foam. The presence of FeOOH effectively inhibited the restacking of Ti 3 C 2 T x nanosheets, while the flexible Ti 3 C 2 T x layers mitigated structural deformation and volume expansion of FeOOH during electrochemical cycling, thereby preserving the structural integrity of the electrode. The optimized electrode delivered a high areal specific capacitance of 745 mF cm -2 at 1 mA cm -2 . An asymmetric supercapacitor, assembled with the as-prepared anode and an MnO 2 -deposited carbon paper cathode, achieved an energy density of 270.3 mWh cm -2 at a power density of 1003.5 mW cm -2 , and exhibited outstanding cycling stability, retaining 86% of its initial capacitance after 15,000 cycles at 7 mA cm -2 . These results highlighted the strong potential of the nanoflower-like FeOOH/Ti 3 C 2 T x composite electrode for practical energy storage applications. Supercapacitor MXene nanoflower-like structure Electrochemical deposition Full Text Additional Declarations No competing interests reported. Supplementary Files ionicssupportinginformation1.docx Cite Share Download PDF Status: Under Revision Version 1 posted Editorial decision: Revision requested 10 May, 2026 Reviews received at journal 03 May, 2026 Reviews received at journal 28 Apr, 2026 Reviews received at journal 27 Apr, 2026 Reviews received at journal 27 Apr, 2026 Reviews received at journal 25 Apr, 2026 Reviewers agreed at journal 23 Apr, 2026 Reviewers agreed at journal 21 Apr, 2026 Reviewers agreed at journal 20 Apr, 2026 Reviewers agreed at journal 20 Apr, 2026 Reviews received at journal 20 Apr, 2026 Reviewers agreed at journal 20 Apr, 2026 Reviewers agreed at journal 19 Apr, 2026 Reviewers agreed at journal 18 Apr, 2026 Reviewers invited by journal 18 Apr, 2026 Editor assigned by journal 16 Apr, 2026 Submission checks completed at journal 16 Apr, 2026 First submitted to journal 14 Apr, 2026 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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