Pregled bibliografske jedinice broj: 1236213
Quantum capacitance of multi-layered δ-6 borophene: A DFT study
Quantum capacitance of multi-layered δ-6 borophene: A DFT study // Electrochimica acta, 439 (2022), 141589-141595 doi:10.1016/j.electacta.2022.141589 (međunarodna recenzija, članak, znanstveni)
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Naslov
Quantum capacitance of multi-layered δ-6 borophene:
A DFT study
Autori
Kolavada, Himalay ; Singh, Shilpa ; Lukačević, Igor ; Gajjar, P. N. ; Gupta, Sanjeev K.
Izvornik
Electrochimica acta (0013-4686) 439
(2022);
141589-141595
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Density functional theory (DFT) ; borophene ; Quantum capacitance ; Surface storage charge ; Energy storage
Sažetak
First-principles calculation is used to systematically investigate the structure, electronic properties, quantum capacitance (QC), and surface storage charge (σ) of multi-layered δ-6 borophene. δ-6 borophene shows metallic behavior. In this work, the effect of the number of monolayers on QC has been calculated and separated in terms of electrode type. For the thickness of 4 monolayers, the obtained quantum capacitance is 600.36 µF/cm2 (618.07 µF/cm2) for DFT-GGA (DFT-vdW) approximations, respectively, which is higher when compared to graphene layered- based electrodes. From the surface storage charge, 1 monolayer thick and 4 monolayers thick borophene are preferred as cathode type electrode materials, while 2 monolayers thick borophene is an anode type electrode material. This research contributes to a better understanding of an efficient method for increasing the quantum capacitance of borophene-based supercapacitors.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Kemija
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
