Correlation of carbonization condition with metallic property of sodium clusters formed in hard carbon studied using                          
                        23
                                                 Na nuclear magnetic resonance

Ryohei Morita; Kazuma Gotoh; Kei Kubota; Shinichi Komaba; Kenjiro Hashi; Tadashi Shimizu; Hiroyuki Ishida

doi:10.1016/j.carbon.2019.01.080

Correlation of carbonization condition with metallic property of sodium clusters formed in hard carbon studied using ²³ Na nuclear magnetic resonance

Ryohei Morita, Kazuma Gotoh, Kei Kubota, Shinichi Komaba, Kenjiro Hashi, Tadashi Shimizu, Hiroyuki Ishida

Research output: Contribution to journal › Letter › peer-review

5 Citations (Scopus)

Abstract

The metallic property of sodium clusters stored in hard carbon (HC) was investigated by ²³ Na NMR using various HC samples prepared over a range of dehydration and carbonization temperatures. The fully sodiated sample prepared at higher carbonization temperature shows a higher ²³ Na NMR shift associated with Na clusters. Na in HC prepared at 2000 °C shows almost the same shift as sodium metal. A higher dehydration temperature of the precursor is favorable to form Na clusters with the higher shift, which implies that the HC pore structure is influenced by not only carbonization temperature but also the heat treatment process.

Original language	English
Pages (from-to)	712-715
Number of pages	4
Journal	Carbon
Volume	145
DOIs	https://doi.org/10.1016/j.carbon.2019.01.080
Publication status	Published - Apr 1 2019

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)

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Morita, R., Gotoh, K., Kubota, K., Komaba, S., Hashi, K., Shimizu, T., & Ishida, H. (2019). Correlation of carbonization condition with metallic property of sodium clusters formed in hard carbon studied using ²³ Na nuclear magnetic resonance Carbon, 145, 712-715. https://doi.org/10.1016/j.carbon.2019.01.080

Correlation of carbonization condition with metallic property of sodium clusters formed in hard carbon studied using ²³ Na nuclear magnetic resonance . / Morita, Ryohei; Gotoh, Kazuma; Kubota, Kei; Komaba, Shinichi; Hashi, Kenjiro; Shimizu, Tadashi; Ishida, Hiroyuki.

In: Carbon, Vol. 145, 01.04.2019, p. 712-715.

Research output: Contribution to journal › Letter › peer-review

Morita, R, Gotoh, K, Kubota, K, Komaba, S, Hashi, K, Shimizu, T & Ishida, H 2019, ' Correlation of carbonization condition with metallic property of sodium clusters formed in hard carbon studied using ²³ Na nuclear magnetic resonance ', Carbon, vol. 145, pp. 712-715. https://doi.org/10.1016/j.carbon.2019.01.080

Morita R, Gotoh K, Kubota K, Komaba S, Hashi K, Shimizu T et al. Correlation of carbonization condition with metallic property of sodium clusters formed in hard carbon studied using ²³ Na nuclear magnetic resonance Carbon. 2019 Apr 1;145:712-715. https://doi.org/10.1016/j.carbon.2019.01.080

Morita, Ryohei ; Gotoh, Kazuma ; Kubota, Kei ; Komaba, Shinichi ; Hashi, Kenjiro ; Shimizu, Tadashi ; Ishida, Hiroyuki. / Correlation of carbonization condition with metallic property of sodium clusters formed in hard carbon studied using ²³ Na nuclear magnetic resonance In: Carbon. 2019 ; Vol. 145. pp. 712-715.

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title = " Correlation of carbonization condition with metallic property of sodium clusters formed in hard carbon studied using 23 Na nuclear magnetic resonance ",

abstract = " The metallic property of sodium clusters stored in hard carbon (HC) was investigated by 23 Na NMR using various HC samples prepared over a range of dehydration and carbonization temperatures. The fully sodiated sample prepared at higher carbonization temperature shows a higher 23 Na NMR shift associated with Na clusters. Na in HC prepared at 2000 °C shows almost the same shift as sodium metal. A higher dehydration temperature of the precursor is favorable to form Na clusters with the higher shift, which implies that the HC pore structure is influenced by not only carbonization temperature but also the heat treatment process. ",

author = "Ryohei Morita and Kazuma Gotoh and Kei Kubota and Shinichi Komaba and Kenjiro Hashi and Tadashi Shimizu and Hiroyuki Ishida",

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AU - Morita, Ryohei

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AU - Kubota, Kei

AU - Komaba, Shinichi

AU - Hashi, Kenjiro

AU - Shimizu, Tadashi

AU - Ishida, Hiroyuki

PY - 2019/4/1

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N2 - The metallic property of sodium clusters stored in hard carbon (HC) was investigated by 23 Na NMR using various HC samples prepared over a range of dehydration and carbonization temperatures. The fully sodiated sample prepared at higher carbonization temperature shows a higher 23 Na NMR shift associated with Na clusters. Na in HC prepared at 2000 °C shows almost the same shift as sodium metal. A higher dehydration temperature of the precursor is favorable to form Na clusters with the higher shift, which implies that the HC pore structure is influenced by not only carbonization temperature but also the heat treatment process.

AB - The metallic property of sodium clusters stored in hard carbon (HC) was investigated by 23 Na NMR using various HC samples prepared over a range of dehydration and carbonization temperatures. The fully sodiated sample prepared at higher carbonization temperature shows a higher 23 Na NMR shift associated with Na clusters. Na in HC prepared at 2000 °C shows almost the same shift as sodium metal. A higher dehydration temperature of the precursor is favorable to form Na clusters with the higher shift, which implies that the HC pore structure is influenced by not only carbonization temperature but also the heat treatment process.

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