Dual-doped graphene-based electrode materials for energy devices
6 affiliations
- 1Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
- 2School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, South Korea
- 3Centre for Information Technology Renato Archer (CTI), Campinas 13069-901, Sao Paulo, Brazil
- 4Centre for Semiconductor Components and Nanotechnology (CCS Nano), University of Campinas (UNICAMP), Campinas 13083-870, Sao Paulo, Brazil
- 5Institute of Liberal Arts and Science, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
- 6Department of Materials and Earth Sciences, Technical University of Darmstadt, 64287 Darmstadt, Germany
Abstract
Heteroatom co-doping of graphene-based materials has become an effective and powerful approach to develop advanced two-dimensional (2D) layered electrodes by engineering the electronic structure, defect chemistry, and surface functionality for electrochemical energy storage and conversion. Compared with single-atom doping, co-doping enables synergistic modulation of charge redistribution, adsorption energetics, and ion transport behavior through complementary electronic and structural effects. Co-doping enables enhanced ion adsorption, charge transfer, and catalytic activity by introducing specific electronic and structural modifications that increase electrical conductivity, generate numerous active sites, and improve surface wettability. This review article systematically outlines the advantages of co-doped 2D graphene-based materials, and summarizes the synthesis techniques for nitrogen-sulfur (N,S), boron-nitrogen (B,N), nitrogen-phosphorus (N,P), and nitrogen-fluorine (N,F) co-doped 2D graphene-based materials, covering high-temperature annealing, thermal heating, hydrothermal, solvothermal, and liquid-phase methods for dual-heteroatom insertion in the carbon skeleton of these materials. The effectiveness of co-doped 2D graphene-based composite electrodes has been demonstrated in supercapacitors (SCs), batteries, fuel cells, solar cells, and water-splitting applications, highlighting the significance of synergistic heteroatom interactions for improving electrochemical performance. In addition to comparisons between single-doped and co-doped 2D graphene-based materials, analytical insights into electron/ion transport, adsorption energy optimization, and structural stability are discussed. The article provides an outlook for further research, highlighting potential uses and new developments in co-doped graphene-based 2D materials for energy applications. Important issues like scalable synthesis, reproducibility, and long-term cycling stability are also addressed, with suggestions for the systematic design of next-generation graphene-based materials and devices. • Synergistic dual-doping effectively modulates graphene electronic structure • Dual-doping enhances defect chemistry and surface reactivity of graphene • Design principles govern synergistic effects in dual-doped graphene materials • Mechanistic insights explain performance gains in energy storage and conversion • Dual-doped graphene is promising for batteries, supercapacitors and energy devices
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BibTeX
@article{kumar2026dualdoped,
title = {{Dual-doped graphene-based electrode materials for energy devices}},
author = {Dr Rajesh Kumar and Sumanta Sahoo and Ednan Joanni and José Maria Clemente da Silva Filho and Raluca Savu and Wai Kian Tan and Go Kawamura and Anke Weidenkaff and Ralf Riedel and Atsunori Matsuda},
journal = {Carbon},
year = {2026},
month = may,
doi = {10.1016/j.carbon.2026.121669},
url = {https://doi.org/10.1016/j.carbon.2026.121669},
note = {CC BY},
}
RIS
TY - JOUR
TI - Dual-doped graphene-based electrode materials for energy devices
AU - Dr Rajesh Kumar
AU - Sumanta Sahoo
AU - Ednan Joanni
AU - José Maria Clemente da Silva Filho
AU - Raluca Savu
AU - Wai Kian Tan
AU - Go Kawamura
AU - Anke Weidenkaff
AU - Ralf Riedel
AU - Atsunori Matsuda
PY - 2026
DA - 2026/05/13
JO - Carbon
DO - 10.1016/j.carbon.2026.121669
UR - https://doi.org/10.1016/j.carbon.2026.121669
AB - Heteroatom co-doping of graphene-based materials has become an effective and powerful approach to develop advanced two-dimensional (2D) layered electrodes by engineering the electronic structure, defect chemistry, and surface functionality for electrochemical energy storage and conversion. Compared with single-atom doping, co-doping enables synergistic modulation of charge redistribution, adsorption energetics, and ion transport behavior through complementary electronic and structural effects. Co-doping enables enhanced ion adsorption, charge transfer, and catalytic activity by introducing specific electronic and structural modifications that increase electrical conductivity, generate numerous active sites, and improve surface wettability. This review article systematically outlines the advantages of co-doped 2D graphene-based materials, and summarizes the synthesis techniques for nitrogen-sulfur (N,S), boron-nitrogen (B,N), nitrogen-phosphorus (N,P), and nitrogen-fluorine (N,F) co-doped 2D graphene-based materials, covering high-temperature annealing, thermal heating, hydrothermal, solvothermal, and liquid-phase methods for dual-heteroatom insertion in the carbon skeleton of these materials. The effectiveness of co-doped 2D graphene-based composite electrodes has been demonstrated in supercapacitors (SCs), batteries, fuel cells, solar cells, and water-splitting applications, highlighting the significance of synergistic heteroatom interactions for improving electrochemical performance. In addition to comparisons between single-doped and co-doped 2D graphene-based materials, analytical insights into electron/ion transport, adsorption energy optimization, and structural stability are discussed. The article provides an outlook for further research, highlighting potential uses and new developments in co-doped graphene-based 2D materials for energy applications. Important issues like scalable synthesis, reproducibility, and long-term cycling stability are also addressed, with suggestions for the systematic design of next-generation graphene-based materials and devices. • Synergistic dual-doping effectively modulates graphene electronic structure • Dual-doping enhances defect chemistry and surface reactivity of graphene • Design principles govern synergistic effects in dual-doped graphene materials • Mechanistic insights explain performance gains in energy storage and conversion • Dual-doped graphene is promising for batteries, supercapacitors and energy devices
SN - 0008-6223
SN - 1873-3891
ER -