Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1883868 | Radiation Physics and Chemistry | 2006 | 4 Pages |
Abstract
By extended X-ray absorption fine structural (EXAFS) spectroscopy, copper oxide clusters with a square-plane structure are found in the channels of mesoporous molecular sieve MCM-41. Bond distances of Cu-O and Cu-Cu are 1.90 and 2.80Â Ã
, respectively. Oxidation of naphthalene at 723Â K for 4Â h in MCM-41 leads to structural perturbation of the clusters (e.g., Cu-O: â0.02Â Ã
and Cu-Cu: +0.02Â Ã
) with little change in their coordination numbers.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Y.P. Sun, H.P. Wang, C.-Y. Peng, Tung Li Hsiung, Y.-M. Sun, Y.-J. Huang,