Exfoliation of layers in NaxCoO2

被引：28

作者：

Masuda, Yoshitake ^{[1
]}

Hamada, Yoshiko

Seo, Won Seon

Koumoto, Kunihito

机构：

[1] Nagoya Univ, Grad Sch Engn, Nagoya, Aichi 4648603, Japan

[2] Natl Inst Adv Ind Sci & Technol, Nagoya, Aichi 4638560, Japan

[3] Korea Inst Ceram Engn & Technol, Seoul, South Korea

[4] CREST, JST, Kawaguchi 3320012, Japan

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2006年 / 6卷 / 06期

关键词：

exfoliation; cobalt oxide; CoO; nanosheet; layer structure; integration; CoO2;

D O I：

10.1166/jnn.2006.224

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We proposed and developed an exfoliation process for layer-structured NaxCoO2 to prepare CoO nanosheets. Na+ ion exchange by acid treatment was utilized to expand the spacing between the two CoO2 layers in NaxCoO2. Ethylamine was then effectively utilized for the exfoliation of cobalt oxide sheets having nanometer-order thickness and high aspect ratio. CoO nanosheets were observed by TEM micrographs and electron diffraction patterns after drying. Further efforts are needed for the application of exfoliated sheets to an integration process to fabricate self-assembled nanomaterials such as desired layer structures composed of two (or more) kinds of nanosheets.

引用

下载

页码：1632 / 1638

页数：7

共 50 条

[1] Comment on "Raman spectroscopy study of NaxCoO2 and superconducting NaxCoO2•yH2O"
Lemmens, P.
Scheib, P.
Krockenberger, Y.
Alff, L.
Chou, F. C.
Lin, C. T.
Habermeier, H. -U.
Keimer, B.
PHYSICAL REVIEW B, 2007, 75 (10)
[2] Stoichiometric oxygen content in NaxCoO2
Viciu, L.
Huang, Q.
Cava, R. J.
PHYSICAL REVIEW B, 2006, 73 (21)
[3] ELECTROCHEMICAL BEHAVIOR OF THE PHASES NAXCOO2
BRACONNIER, JJ
DELMAS, C
FOUASSIER, C
HAGENMULLER, P
MATERIALS RESEARCH BULLETIN, 1980, 15 (12) : 1797 - 1804
[4] Point defect structure of γ-NaxCoO2
Joo, Wonhyo
Yoo, Han-Ill
SOLID STATE IONICS, 2018, 314 : 74 - 80
[5] Possible quantum criticality in NaxCoO2
Rivadulla, F
Bañobre-López, M
García-Hernández, M
López-Quintela, MA
Rivas, J
PHYSICAL REVIEW B, 2006, 73 (05)
[6] A new triangular system:: NaxCoO2
Ogata, Masao
JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (14)
[7] Electronic Structure of the NaxCoO2 Surface
Pillay, D.
Johannes, M. D.
Mazin, I. I.
PHYSICAL REVIEW LETTERS, 2008, 101 (24)
[8] Quantum critical point of γ-NaxCoO2
Sakurai, Hiroya
Tsujii, Naohito
Takayama-Muromachi, Eiji
PHYSICA B-CONDENSED MATTER, 2006, 378-80 : 121 - 122
[9] RECHARGEABLE NA NAXCOO2 AND NA15PB4 NAXCOO2 POLYMER ELECTROLYTE CELLS
MA, YP
DOEFF, MM
VISCO, SJ
DEJONGHE, LC
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1993, 140 (10) : 2726 - 2733
[10] Raman spectroscopy study of NaxCoO2 and superconducting NaxCoO2•yH2O -: art. no. 052502
Shi, YG
Liu, YL
Yang, HX
Nie, CJ
Jin, R
Li, JQ
PHYSICAL REVIEW B, 2004, 70 (05) : 052502 - 1

← 1 2 3 4 5 →