Quantum-based first-principles study of gas molecules (O2, CO2, NO2) interaction on monolayer germanene

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Arief HERMANTO, Harmon PRAYOGI, Ari Dwi NUGRAHENI, Juliasih PARTINI, Sholihun SHOLIHUN

2023 Journal of Metals, Materials and Minerals Vol. 33 Issue 4 Article Cited by 1 Quartile

Abstract

We perform calculations of the adsorption energy of O2, CO2, and NO2 molecules on germanene by using the density functional theory (DFT). We find two favorable configurations for O2, the U-site and V-site configurations with similar adsorption energies of -4.10 and -4.32 eV. As for NO2, we find two favorable configurations, the T-site and DB-site configurations. The T-site configuration is 0.98 eV more stable than the IB-site one, and both configurations are chemically adsorbed by germanene. On the contrary for CO2, we find a T-site configuration with adsorption energy of 0.42 eV and the configuration physically adsorbed by germanene. © (2023) All Rights reserved.

Affiliations

Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara BLS 21, Yogyakarta, 5281, India; Department of Data Science, Faculty of Mathematics and Natural Sciences, Universitas Negeri Surabaya, Surabaya, 60231, India