ItemArticle

Temperature-Tuned Nitrogen and Oxygen Self-Doped Carbonized Polymer Dots for Enhanced Supercapacitor Applications

Title
Temperature-Tuned Nitrogen and Oxygen Self-Doped Carbonized Polymer Dots for Enhanced Supercapacitor Applications
Creator
Abraham, Joselyn Elizabeth; Balachandran, Manoj
Description
A one-step hydrothermal method is used to synthesize nitrogen and oxygen self-doped carbonized polymer dots (N, O-CPDs) from o-phenylenediamine (o-PD) as the precursor. Detailed structural analysis shows that the evolution of defects is temperature-dependent, with the synthesis temperature being crucial in determining the level of carbonization and structural disorder. This process results in a complex carbon structure featuring sp2 graphitic domains mixed with controlled structural defects, essential for electrochemical activity. The N, O-CPDs demonstrate remarkable electrochemical performance when tested as electrode materials for supercapacitors. Notably, the sample synthesized at 220C achieves a high specific capacitance of 205 Fg?1 at 1 Ag?1 in a three-electrode setup and 58 Fg?1 in a two-electrode configuration. Additionally, it shows excellent cycling stability, maintaining 85% of its initial capacitance after 4500 cycles at 4 Ag?1. This impressive performance is attributed to the synergistic effects of nitrogen and oxygen doping, which create numerous active sites and enhance charge transfer efficiency. The combination of optimized structural disorder and heteroatom doping significantly improves the electrochemical properties of these N, O-CPDs, highlighting their potential as advanced materials for energy storage applications. 2025 Wiley-VCH GmbH.
Source
Particle and Particle Systems Characterization;Volume;42;Issue;9;Article No.;70010;
Date
01-01-2025
Publisher
John Wiley and Sons Inc
Subject
carbonized polymer dots; energy storage; self-doping; supercapacitor; temperature-dependent
Coverage
Abraham J.E., Department of Physics and Electronics, CHRIST University, Karnataka, Bengaluru, 560029, India; Balachandran M., Department of Physics and Electronics, CHRIST University, Karnataka, Bengaluru, 560029, India
Rights
All Open Access; Bronze Open Access
Relation
ISSN: 9340866; CODEN: PPCHE
Format
online
Language
English
Type
Article

Citation

Abraham, Joselyn Elizabeth; Balachandran, Manoj, “Temperature-Tuned Nitrogen and Oxygen Self-Doped Carbonized Polymer Dots for Enhanced Supercapacitor Applications,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 19, 2026, https://archives.christuniversity.in/items/show/21801.

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