Preparation of carbon spheres consisting of amorphous carbon cores and graphene shells

被引：62

作者：

Lou, ZS

Chen, QW ^{[1
]}

Gao, J

Zhang, YF

机构：

[1] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China

来源：

CARBON | 2004年 / 42卷 / 01期

基金：

中国国家自然科学基金;

关键词：

graphitic carbon; chemical treatment; transmission electron microscopy;

D O I：

10.1016/j.carbon.2003.10.012

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The preparation of carbon spheres consisting of amorphous carbon cores and graphene shells was discussed. It was found that carbon spheres were synthesized by reduction of supercritical CO2 with metallic Li at 650°C. It is observed that the polarity of carbon dioxide was increased by controlling its density. The analysis showed that the reaction temperature played an important role in the formation of carbon spheres and at temperature lower than 650°C, it mainly yields CNT and graphite.

引用

页码：229 / 232

页数：4

共 13 条

[1] Reduction of carbon dioxide by magnetite: Implications for the primordial synthesis of organic molecules
Chen, QW
Bahnemann, DW
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (05) : 970 - 971
[2] CARBON ONIONS PRODUCED BY HEAT-TREATMENT OF CARBON SOOT AND THEIR RELATION TO THE 217.5 NM INTERSTELLAR ABSORPTION FEATURE
DEHEER, WA
UGARTE, D
[J]. CHEMICAL PHYSICS LETTERS, 1993, 207 (4-6) : 480 - 486
[3] Storage of hydrogen in single-walled carbon nanotubes
Dillon, AC
Jones, KM
Bekkedahl, TA
Kiang, CH
Bethune, DS
Heben, MJ
[J]. NATURE, 1997, 386 (6623) : 377 - 379
[4] Erkey C., 1990, J SUPERCRIT FLUID, V3, P180
[5] HATTA N, 1994, CHEM PHYS LETT, V217, P398, DOI 10.1016/0009-2614(93)E1414-C
[6] HOMOGENEOUS CATALYTIC-HYDROGENATION OF SUPERCRITICAL CARBON-DIOXIDE
JESSOP, PG
IKARIYA, T
NOYORI, R
[J]. NATURE, 1994, 368 (6468) : 231 - 233
[7] SOLID C-60 - A NEW FORM OF CARBON
KRATSCHMER, W
LAMB, LD
FOSTIROPOULOS, K
HUFFMAN, DR
[J]. NATURE, 1990, 347 (6291) : 354 - 358
[8] Hydrogen storage in single-walled carbon nanotubes at room temperature
Liu, C
Fan, YY
Liu, M
Cong, HT
Cheng, HM
Dresselhaus, MS
[J]. SCIENCE, 1999, 286 (5442) : 1127 - 1129
[9] Diamond formation by reduction of carbon dioxide at low temperatures
Lou, ZS
Chen, QW
Zhang, YF
Wang, W
Qian, YT
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (31) : 9302 - 9303
[10] HIGH-RESOLUTION ELECTRON-MICROSCOPY STUDIES IN CARBON SOOTS
MIKIYOSHIDA, M
CASTILLO, R
RAMOS, S
RENDON, L
TEHUACANERO, S
[J]. CARBON, 1994, 32 (02) : 231 - 246

← 1 2 →