Rok 2024

• Diamond-Based Supercapacitors with Ultrahigh Cyclic Stability Through Dual-Phase MnO2-Graphitic Transformation Induced by High-Dose Mn-Ion Implantation

  Publikacja

  • S. Deshmukh
  • S. Kunuku
  • P. Jakóbczyk
  • A. Olejnik
  • C. Chen
  • H. Niu
  • B. Yang
  • N. Yang
  • R. Bogdanowicz

  - ADVANCED FUNCTIONAL MATERIALS - Rok 2024

  While occasionally being able to charge and dischargemore quickly than batteries, carbon-based electrochemical supercapacitors(SCs) are nevertheless limited by their simplicity of processing, adjustableporosity, and lack of electrocatalytic active sites for a range of redox reactions.Even SCs based on the most stable form of carbon (sp3carbon/diamond)have a poor energy density and inadequate capacitance retention during longcharge/discharge...

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Rok 2023

• Band Gap Engineering toward Semimetallic Character of Quinone-Rich Polydopamine

  Publikacja

  • A. Olejnik
  • K. Olbryś
  • J. Karczewski
  • J. Ryl
  • R. Bogdanowicz
  • K. Siuzdak

  - Journal of Physical Chemistry C - Rok 2023

  Semiconductor|melanin interfaces have received increasingly more attention in the fields of photocatalysis and applied electrochemistry because of their facile synthesis, unique electrical properties, and strong capability toward photosensitization. In this work, we describe the electropolymerization of quinone-rich polydopamine (PDA) on the surface of hydrogenated TiO2 nanotubes with enhanced photoactivity in the visible spectrum....

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• Direct determination of paraquat herbicide by square-wave voltammetry by two-step transfer mechanism at heterogeneous boron-doped carbon nanowall electrodes

  Publikacja

  • S. Sain
  • M. Ficek
  • A. Olejnik
  • M. Sawczak
  • R. Bogdanowicz
  • S. S. Roy

  - DIAMOND AND RELATED MATERIALS - Rok 2023

  Boron-doped carbon nanowalls (B:CNW) versus boron-doped diamond (BDD) materials were investigated for the effective electrochemical detection of highly toxic herbicide paraquat (PQ). Depending on the surface morphology and functional groups of BDD and B:CNWs, the electrochemical absorption and detection of the target analyte PQ revealed different detection mechanisms. The surface absorption mechanism was mainly observed for BDD,...

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• Highly Occupied Surface States at Deuterium-Grown Boron-Doped Diamond Interfaces for Efficient Photoelectrochemistry

  Publikacja

  • M. Sobaszek
  • M. Brzhezinskay
  • A. Olejnik
  • V. Mortet
  • M. Alam
  • S. Mirosław
  • M. Ficek
  • M. Gazda
  • Z. Weiss
  • R. Bogdanowicz

  - SMALL - Rok 2023

  Polycrystalline boron-doped diamond is a promising material for high-power aqueous electrochemical applications in bioanalytics, catalysis, and energy storage. The chemical vapor deposition (CVD) process of diamond forma-tion and doping is totally diversified by using high kinetic energies of deu-terium substituting habitually applied hydrogen. The high concentration of deuterium in plasma induces atomic arrangements and steric...

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