Abstract
Homogeneous mixed-metal oxides of the general formula (Bi/E/Si)O x , where E represents a dopant element (E=Sb, Sn, or Sb/Sn), can be prepared using typical sol-gel processing techniques. Reduction of the in-situ Bi(III) and E ions by hydrogen affords nanocomposites of Bi-Sb, Bi-Sn, or Bi-Sb-Sn widely dispersed throughout the silica xerogel matrix. The materials prepared have high Bi-E metal loading of 52–60 wt. % containing Bi-E alloy nanoclusters of 12–15 nm average diameter. These results demonstrate a convenient method for the production of practical quantities of nanostructured bismuth alloy ceramic composites at high metal content.
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References
(a) F. J. DiSalvo (1999). Science 285, 703
(b) B. C. Sales (1998). MRS Bull. 22, 15
(c) X. Sun, Z. Zhang, and M. S. Dresselhaus (1999). Appl. Phys. Lett. 74, 4005
(d) Y. M. Lin, X. Sun, and M. S. Dresselhaus (2000). Phys. Rev. B 62, 4610
(e) L. D. Hicks and M. S. Dresselhaus (1993). Phys. Rev. B 47, 16631.
W. N. Shen, B. Dunn, C. D. Moore, M. S. Goorsky, T. Radetic, and R. Gronsky (2000). J. Mater. Chem. 10, 657.
R. Czajka, K. Trzebiatowski, B. Polewska, S. Kaszcyszyn, and B. Susla (1997). Vacuum 48, 213.
E. E. Foos, R. M. Stroud, A. D. Berry, A. W. Snow, and J. P. Armistead (2000). J. Amer. Chem. Soc. 122, 7114.
J. Fang, K. L. Stokes, W. L. Zhou, W. Wang, and J. Lin (2001). Chem. Commun. 1872.
J. Heremans and C. M. Thrush (1999). Phys. Rev. B 59, 12579.
J. Heremans, C. M. Thrush, Y. Lin, S. B. Cronin, and M. S. Dresselhaus (2001). Phys. Rev. B 63, 085406.
Z. Zhang, D. Gekhtman, M. S. Dresselhaus, and J. Y. Ying (1999). Chem. Mater. 11, 1659.
A. L. Prieto, M. S. Sander, M. S. Martin-Gonzalez, R. Gronsky, T. Sands, and A. M. Stacy (2001). J. Amer. Chem. Soc. 123, 7160.
J. T. Moore and C. M. Lukehart (2002). J. Mater. Chem. 12, 288.
Xerogel is defined as silica gel that has been dried by evaporation under non-supercritical conditions. These gels are typically reduced in volume by a factor of 5–10 relative to the original wet gel.
C. J. Carmalt, N. A. Compton, R. J. Errington, G. A. Fisher, I. Moenandar, N. C. Norman, and K. H. Whitmire (1997). Inorg. Synth. 31, 98.
M. A. Matchett, M. Y. Chiang, and W. E. Buhro (1990). Inorg. Chem. 29, 360.
(a) C. J. Brinker and G. W. Scherer (00000), Sol-Gel Science (Academic Press, San Diego, 1990)
(b) P. C. Joshi and S. B. Krupanidhi (1992). J. Appl. Phys. 72, 5827.
H. P. Klug and L. E. Alexander (00000), X-Ray Diffraction Procedures for Polycrystalline and Amorphous Materials, 5th ed. (Wiley, New York, 1974).
C. G. Grandquist and R. A. Buhrman (1976). J. Catal. 42, 477.
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Moore, J.T., Lukehart, C.M. Formation of Bi-Sb, Bi-Sn, and Bi-Sb-Sn Nanoclusters in Silica Xerogel Matrices from Mixed-Metal Oxide Precursors. Journal of Cluster Science 14, 75–83 (2003). https://doi.org/10.1023/A:1024881202399
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DOI: https://doi.org/10.1023/A:1024881202399