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Peer-reviewedCC BY-NC-ND 4.0ACS Omega

Holey Graphyne as a Promising Cathode Material for Aluminum-Ion Batteries: A First-Principles Study

  • Sanat Nalini Paltasingh1
  • Mihir Ranjan Sahoo2
  • Debashish Das1
  • Saroj Kumar Nayak1
  1. 1Indian Institute of Technology Bhubaneswar , , ,
  2. 2Graz University of Technology , , ,
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Abstract

Aluminum-ion batteries are among the most efficient battery technologies owing to the abundance of aluminum and its trivalent redox properties. However, their practical application remains limited by the poor longevity of cathode materials. In this study, we investigate the potential of the two-dimensional porous carbon allotrope holey graphyne (HGY) as a cathode material for aluminum-ion batteries. Density functional theory calculations are employed to systematically examine the interaction of AlCl4 species with HGY and assess its potential for AlCl4 storage. The results indicate that AlCl4 on the HGY surface has an adsorption energy of −1.59 eV, suggesting significant energetic stability of the adsorbate system. The monolayer HGY provides a specific capacity of 372 mAh g–1, substantially higher than that of graphite (70 mAh g–1) and graphene (155 mAh g–1). Furthermore, the calculated average open-circuit voltage of the HGY cathode is approximately 2.25 V, higher than that of graphite (2.00 V). Additionally, the low diffusion barrier of 0.04 eV indicates high mobility of AlCl4 on the HGY surface, suggesting rapid ion transport and favorable fast-charging capability. These findings highlight the significant potential of HGY as an effective cathode material for aluminum-ion batteries.

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Cite

BibTeXRIS
BibTeX
@article{paltasingh2026holey,
  title = {{Holey Graphyne as a Promising Cathode Material for Aluminum-Ion Batteries: A First-Principles Study}},
  author = {Sanat Nalini Paltasingh and Mihir Ranjan Sahoo and Debashish Das and Saroj Kumar Nayak},
  journal = {ACS Omega},
  year = {2026},
  month = oct,
  doi = {10.1021/acsomega.6c06474},
  url = {https://pubs.acs.org/acsodf/article/11/41/63206/5447294/Holey-Graphyne-as-a-Promising-Cathode-Material-for},
  note = {CC BY-NC-ND 4.0},
}
RIS
TY  - JOUR
TI  - Holey Graphyne as a Promising Cathode Material for Aluminum-Ion Batteries: A First-Principles Study
AU  - Sanat Nalini Paltasingh
AU  - Mihir Ranjan Sahoo
AU  - Debashish Das
AU  - Saroj Kumar Nayak
PY  - 2026
DA  - 2026/10/08
JO  - ACS Omega
DO  - 10.1021/acsomega.6c06474
UR  - https://pubs.acs.org/acsodf/article/11/41/63206/5447294/Holey-Graphyne-as-a-Promising-Cathode-Material-for
AB  - Aluminum-ion batteries are among the most efficient battery technologies owing to the abundance of aluminum and its trivalent redox properties. However, their practical application remains limited by the poor longevity of cathode materials. In this study, we investigate the potential of the two-dimensional porous carbon allotrope holey graphyne (HGY) as a cathode material for aluminum-ion batteries. Density functional theory calculations are employed to systematically examine the interaction of AlCl4 species with HGY and assess its potential for AlCl4 storage. The results indicate that AlCl4 on the HGY surface has an adsorption energy of −1.59 eV, suggesting significant energetic stability of the adsorbate system. The monolayer HGY provides a specific capacity of 372 mAh g–1, substantially higher than that of graphite (70 mAh g–1) and graphene (155 mAh g–1). Furthermore, the calculated average open-circuit voltage of the HGY cathode is approximately 2.25 V, higher than that of graphite (2.00 V). Additionally, the low diffusion barrier of 0.04 eV indicates high mobility of AlCl4 on the HGY surface, suggesting rapid ion transport and favorable fast-charging capability. These findings highlight the significant potential of HGY as an effective cathode material for aluminum-ion batteries.
SN  - 2470-1343
ER  -