Abstract
Materials with structures related to that ofα-rhombohedral B (α-rh B) were synthesized in the B-C-N-O system at high pressures and temperatures. Electron energy-loss spectroscopy with a transmission electron microscope was used to determine the stoichiometry of these phases. The energy-loss near-edge structure of the core-loss edges provided qualitative information on the bonding and local band structure. Extensive solid solution between B4C and B6O was found in some of the syntheses as well as nanorods with composition near B6C in one experiment. The analysis of the newα-rh B-type material, nominally B6N, provided a mean composition of B6N0.92. The B K edge from B6N is similar to that from other icosahedral boron-rich phases, more specifically to B6O, although differences near the conduction-band onset reveal a high level of unoccupied states within the band gap.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 365-371 |
| Number of pages | 7 |
| Journal | Journal of Solid State Chemistry |
| Volume | 133 |
| Issue number | 2 |
| DOIs | |
| State | Published - Nov 1 1997 |
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ASJC Scopus subject areas
- Inorganic Chemistry
- Physical and Theoretical Chemistry
- Materials Chemistry
Cite this
High-Pressure, High-Temperature Syntheses in the B-C-N-O System. / Garvie, Laurence; Hubert, Hervé; Petuskey, William; McMillan, Paul F.; Buseck, P R.
In: Journal of Solid State Chemistry, Vol. 133, No. 2, 01.11.1997, p. 365-371.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High-Pressure, High-Temperature Syntheses in the B-C-N-O System
AU - Garvie, Laurence
AU - Hubert, Hervé
AU - Petuskey, William
AU - McMillan, Paul F.
AU - Buseck, P R
PY - 1997/11/1
Y1 - 1997/11/1
N2 - Materials with structures related to that ofα-rhombohedral B (α-rh B) were synthesized in the B-C-N-O system at high pressures and temperatures. Electron energy-loss spectroscopy with a transmission electron microscope was used to determine the stoichiometry of these phases. The energy-loss near-edge structure of the core-loss edges provided qualitative information on the bonding and local band structure. Extensive solid solution between B4C and B6O was found in some of the syntheses as well as nanorods with composition near B6C in one experiment. The analysis of the newα-rh B-type material, nominally B6N, provided a mean composition of B6N0.92. The B K edge from B6N is similar to that from other icosahedral boron-rich phases, more specifically to B6O, although differences near the conduction-band onset reveal a high level of unoccupied states within the band gap.
AB - Materials with structures related to that ofα-rhombohedral B (α-rh B) were synthesized in the B-C-N-O system at high pressures and temperatures. Electron energy-loss spectroscopy with a transmission electron microscope was used to determine the stoichiometry of these phases. The energy-loss near-edge structure of the core-loss edges provided qualitative information on the bonding and local band structure. Extensive solid solution between B4C and B6O was found in some of the syntheses as well as nanorods with composition near B6C in one experiment. The analysis of the newα-rh B-type material, nominally B6N, provided a mean composition of B6N0.92. The B K edge from B6N is similar to that from other icosahedral boron-rich phases, more specifically to B6O, although differences near the conduction-band onset reveal a high level of unoccupied states within the band gap.
UR - http://www.scopus.com/inward/record.url?scp=0000145816&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000145816&partnerID=8YFLogxK
U2 - 10.1006/jssc.1997.7583
DO - 10.1006/jssc.1997.7583
M3 - Article
AN - SCOPUS:0000145816
VL - 133
SP - 365
EP - 371
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
SN - 0022-4596
IS - 2
ER -