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논문 기본 정보
- 자료유형
- 동향자료
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 116 - 120 (5page)
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We investigated the adsorption of Na on graphene and graphene oxide, which are used as anode materials in sodium ion batteries, using density functional theory. The adsorption energy for Na on graphene was -0.507 eV at the hollow sites, implying that adsorption was favorable. In the case of graphene oxide, Na atoms were separately adsorbed on the epoxide and hydroxyl functional groups. The adsorption of Na on graphene oxide-epoxide (adsorption energy of -1.024 eV) was found to be stronger than the adsorption of Na on pristine graphene. However, the adsorption of Na on graphene oxide-hydroxyl resulted in the generation of NaOH as a by-product. Using density of states (DOS) calculations, we found that the DOS of the Na-adsorbed graphene was shifted down more than that of the Na-adsorbed graphene oxide-epoxide. In addition, the intensity of the DOS around the Fermi level for the Na-adsorbed graphene was higher than that for the Na-adsorbed graphene oxide-epoxide.
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참고문헌 (27)
참고문헌 신청
Michael D. Slater / 2013 / Sodium-Ion Batteries / Advanced Functional Materials 23(8):947~958
Brian L. Ellis / 2012 / Sodium and sodium-ion energy storage batteries / Current Opinion in Solid State and Materials Science 16(4):168~177
Verónica Palomares / 2013 / Update on Na-based battery materials. A growing research path / Energy & Environmental Science 6(8):2312
Sung-Wook Kim / 2012 / Electrode Materials for Rechargeable Sodium-Ion Batteries: Potential Alternatives to Current Lithium-Ion Batteries / Advanced Energy Materials 2(7):710~721
Verónica Palomares / 2012 / Na-ion batteries, recent advances and present challenges to become low cost energy storage systems / Energy & Environmental Science 5(3):5884
Brian L. Ellis / 2012 / Sodium and sodium-ion energy storage batteries / Current Opinion in Solid State and Materials Science 16(4):168~177
Verónica Palomares / 2013 / Update on Na-based battery materials. A growing research path / Energy & Environmental Science 6(8):2312
Sung-Wook Kim / 2012 / Electrode Materials for Rechargeable Sodium-Ion Batteries: Potential Alternatives to Current Lithium-Ion Batteries / Advanced Energy Materials 2(7):710~721
Verónica Palomares / 2012 / Na-ion batteries, recent advances and present challenges to become low cost energy storage systems / Energy & Environmental Science 5(3):5884
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