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 | |
| Publication status | Published - Apr 1 2019 |
Fingerprint
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
Cite this
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
}
TY - JOUR
T1 - Correlation of carbonization condition with metallic property of sodium clusters formed in hard carbon studied using 23 Na nuclear magnetic resonance
AU - Morita, Ryohei
AU - Gotoh, Kazuma
AU - Kubota, Kei
AU - Komaba, Shinichi
AU - Hashi, Kenjiro
AU - Shimizu, Tadashi
AU - Ishida, Hiroyuki
PY - 2019/4/1
Y1 - 2019/4/1
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.
UR - http://www.scopus.com/inward/record.url?scp=85061337487&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85061337487&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2019.01.080
DO - 10.1016/j.carbon.2019.01.080
M3 - Letter
AN - SCOPUS:85061337487
VL - 145
SP - 712
EP - 715
JO - Carbon
JF - Carbon
SN - 0008-6223
ER -