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Cameron JM, Hughes RW, Zhao Y, Gregory DH. Ternary and higher pnictides; prospects for new materials and applications. Chem Soc Rev 2011; 40:4099-118. [DOI: 10.1039/c0cs00132e] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bouchet D, Colliex C. Experimental study of ELNES at grain boundaries in alumina: intergranular radiation damage effects on Al-L23 and O-K edges. Ultramicroscopy 2003; 96:139-52. [PMID: 12672564 DOI: 10.1016/s0304-3991(02)00437-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The need for understanding the structural and chemical properties of interfaces and grain boundaries in materials is being paralleled by new developments in transmission electron microscopy methods. The extraction of data on grain boundaries has to be carefully evaluated, freed from artefacts and allowing fairly direct interpretation. Besides improvements in data processing, a primary requirement is an improved knowledge of the ELNES fine structures of the relevant absorption edge. For the case of alumina, we first present a compilation of Al-L(23) edges with an energy resolution of 0.5-0.6eV. This allows identification of the ELNES features which are more likely to vary as a function of the aluminium atomic environment, i.e. the excitonic peaks between 77 and 79eV and the near-edge features between 83 and 86eV, which both clearly depend on the Al site environment. Our second investigation concerns the likely occurrence of electron radiation damage at interfaces which may adversely interfere with the identification of new bonding types. The Al-L(23) and O-K ELNES changes associated with several cases of damage are detailed.
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Affiliation(s)
- Danièle Bouchet
- Laboratoire de Physique des Solides UMR CNRS 8502, Bât 510, Université Paris-Sud, 91405 Orsay Cedex, France.
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Delsarte S, Grange P, Chen T, Grobet P, Jacobs P. Nitrogen Incorporation in an Al0.5Ga0.5PO4 Amorphous Solid Studied with 27Al and 31P NMR. J Phys Chem B 2003. [DOI: 10.1021/jp027170d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stéphanie Delsarte
- Unité de catalyse et chimie des matériaux divisés, Université catholique de Louvain, Place Croix du Sud 2/17, 1348 Louvain-la-Neuve, Belgium, and Centrum voor Oppervlaktechemie en katalyse, Kasteelpark Arenberg 23, Katholieke Universiteit Leuven, 3001 Heverlee, Belgium
| | - Paul Grange
- Unité de catalyse et chimie des matériaux divisés, Université catholique de Louvain, Place Croix du Sud 2/17, 1348 Louvain-la-Neuve, Belgium, and Centrum voor Oppervlaktechemie en katalyse, Kasteelpark Arenberg 23, Katholieke Universiteit Leuven, 3001 Heverlee, Belgium
| | - Tiehong Chen
- Unité de catalyse et chimie des matériaux divisés, Université catholique de Louvain, Place Croix du Sud 2/17, 1348 Louvain-la-Neuve, Belgium, and Centrum voor Oppervlaktechemie en katalyse, Kasteelpark Arenberg 23, Katholieke Universiteit Leuven, 3001 Heverlee, Belgium
| | - Piet Grobet
- Unité de catalyse et chimie des matériaux divisés, Université catholique de Louvain, Place Croix du Sud 2/17, 1348 Louvain-la-Neuve, Belgium, and Centrum voor Oppervlaktechemie en katalyse, Kasteelpark Arenberg 23, Katholieke Universiteit Leuven, 3001 Heverlee, Belgium
| | - Pierre Jacobs
- Unité de catalyse et chimie des matériaux divisés, Université catholique de Louvain, Place Croix du Sud 2/17, 1348 Louvain-la-Neuve, Belgium, and Centrum voor Oppervlaktechemie en katalyse, Kasteelpark Arenberg 23, Katholieke Universiteit Leuven, 3001 Heverlee, Belgium
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