DOI:
10.1039/A702968C
(Paper)
Reference Section for:
J. Mater. Chem., 1997,
7, 2273-2277
Abstract
Thermal decomposition of NH4VO3 under N2 and NH3+ H2O has been studied on a molecular level by in situ Raman spectroscopy in the temperature range 150–400 °C. Under N2 , the decomposition mechanism leading to formation of V2O5 has been observed to proceed via two intermediates: viz. an amorphous, transitional (NH4)2V4O11 and NH4V3O8 . Under NH3+H2O, a slightly different decomposition pathway, rationalized in terms of stability of intermediates, leading to the formation of V2O3 has been observed. The identification of Raman-inactive V2O3 is further supported by the formation of V2O4and V2O5 , along with monomeric vanadyl species, through oxidation of V2O3 at 400 °C.
References
- D. J. Hucknall,
Selective Oxidation of Hydrocarbons,
Academic Press,
London,
1974 Search PubMed.
- H. Bosch and F. Janssen, Catal. Today, 1988, 2, 369 CrossRef CAS.
- P. Mars and J. G. H. Massen, J. Catal., 1968, 10, 1 CrossRef CAS.
- M. Taniguchi and T. R. Ingraham, Can. J. Chem., 1964, 42, 2467 CAS.
- C. Lampe-Onnerud and J. O. Thomas, J. Mater. Chem., 1995, 5, 1075 RSC.
- U. Von Sacken and J. R. Dahn, J. Power Sources, 1989, 26, 461 CrossRef CAS.
- A. Shimizu, T. Watanabe and M. Inagaki, J. Mater. Chem., 1994, 4, 1475 RSC.
- M. E. Brown, L. Glasser and B. V. Stewart, J. Therm. Anal., 1975, 7, 125 Search PubMed.
- S. A. Selim, Ch. A. Philp and R. Ch. Mikhail, Thermochim. Acta, 1980, 36, 287 CrossRef CAS.
- M. E. Brown, L. Glasser and B. V. Stewart, J. Therm. Anal., 1974, 6, 529 Search PubMed.
- C. Li, H. Zhang, K. Wang, Y. Miao and Q. Xin, Appl. Spectrosc., 1993, 47, 56 CAS.
- J. M. Stencel,
Raman Spectroscopy For Catalysis,
Van Nostrand Reinhold,
New York,
1990 Search PubMed.
- F. D. Hardcastle and I. E. Wach, J. Phys. Chem., 1991, 95, 5031 CrossRef CAS.
- J. Twu and P. K. Dutta, J. Phys. Chem., 1989, 93, 7863 CrossRef CAS.
- J. Twu and P. K. Dutta, J. Catal., 1990, 124, 503 CrossRef CAS.
- A. M. Heyns and M. W. Venter, Z. Naturforsch., Teil B, 1987, 42, 843 CAS.
- J. Haber, T. Machej, E. M. Serwicka and I. E. Wachs, Catal. Lett., 1995, 32, 101 CrossRef CAS.
- S. Onodera and Y. Ikegami, Inorg. Chem., 1980, 19, 615 CrossRef CAS.
- H. T. Evan, Jr. and S. Block, Inorg. Chem., 1996, 5, 1808.
- J. Skibsted, N. C. Nielsen, H. Bildsoe and H. J. Jakobsen, J. Am. Chem. Soc., 1993, 115, 7351 CrossRef CAS.
- A. D. Kelmers, J. Inorg. Nucl. Chem., 1961, 21, 45 CrossRef CAS.
- L. V. Kristallov, O. V. Koryakova, L. A. Perelyaeva and M. P. Tsvetkova, Russ. J. Inorg. Chem., 1987, 32, 1073.
- L. Abello, E. Husson, Y. Repelin and G. Lucazeau, J. Solid State Chem., 1985, 56, 379 CrossRef CAS.
- J. P. Baltrus, L. E. Makovsky, J. M. Stencel and D. M. Hercules, Anal. Chem., 1985, 57, 2500 CrossRef CAS.
- R. F. Wormsbecher, A. W. Peters and J. M. Maselli, J. Catal., 1985, 96, 363 CrossRef.
- M. Fournier, C. Feumi-Jantou, C. Rabia, G. Herve and S. Launay, J. Mater. Chem., 1992, 2, 971 RSC.
- J. J. Cruywagen, J. Bernard, B. Heyns and A. N. Westra, Inorg. Chem., 1996, 35, 1556 CrossRef CAS.
- L. D. Frederickson, Jr., Anal. Chem., 1963, 35, 819.
- V. Luca, D. J. Maclachlan, J. M. Hook and R. Withers, Chem. Mater., 1995, 7, 2220 CrossRef CAS.
- G. G. Janauer, A. Dobley, J. Guo, P. Zavalij and M. S. Whittingham, Chem. Mater., 1996, 8, 2096 CrossRef.
- F. J. J. G. Janssen, F. M. G. van den Kerkhof, H. Boasch and J. R. H. Ross, J. Phys. Chem., 1987, 91, 6633 CrossRef CAS.
- S. T. Oyama, G. T. Went, K. B. Lewis, A. T. Bell and G. A. Somorjai, J. Phys. Chem., 1989, 93, 6786 CrossRef CAS.
- G. T. Went, L. J. Leu, S. J. Lombardo and A. T. Bell, J. Phys. Chem., 1992, 96, 2235 CrossRef CAS.
- R. B. Bjorklund, L. A. H. Andersson, C. U. I. Odenbrand, L. Sjoqvist and A. Lund, J. Phys. Chem., 1992, 96, 10953 CrossRef CAS.
- W. S. Went and J. A. Reimer, J. Am. Chem. Soc., 1992, 114, 5768 CrossRef.
- K. V. Narayana, A. Venugopal, K. S. Rama Rao, V. Venkat Rao, S. Khaja Masthan and P. Kanta Rao, Appl. Catal. A, 1997, 150, 269 CrossRef CAS.
- I. E. Wachs and S. S. Chan, Appl. Surf. Sci., 1984, 20, 181 CrossRef CAS.
- F. A. Miller and L. R. Cousins, J. Chem. Phys., 1957, 26, 329 CrossRef CAS.
- N. Das, H. Eckert, H. Hu, I. E. Wachs, J. F. Walzer and F. J. Feher, J. Phys. Chem., 1993, 97, 8240 CrossRef CAS.
- G. T. Went, S. T. Oyama and A. T. Bell, J. Phys. Chem., 1990, 94, 4240 CrossRef CAS.
- I. E. Wachs, G. Deo, M. A. Vuurman, H. Hu, D. S. Kim and J.-M. Jehng, J. Mol. Catal., 1993, 82, 443 CrossRef CAS.
- M. Schraml-Marth, A. Wokaun and A. Baiker, Fresenius' J. Anal. Chem., 1991, 341, 87 CrossRef CAS.
- K. Inumaru, M. Misono and T. Okuhara, Appl. Catal. A, 1997, 149, 133 CrossRef CAS.
- U. Scharf, M. Schrami-Marth, A. Wokaun and A. Baiker, J. Chem. Soc., Faraday Trans., 1991, 87, 3299 RSC.
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