Abstract
Abstract The reaction products of gaseous VCl4 with ammonia were VCl4·4NH3 at 200 °C, VCl4·4NH3, VNx, and NH4Cl at 250–550 °C, and VNx and NH4Cl at 600–1000 °C. At 1100 °C, small amounts of VCl2 and HCl were formed in addition to VNx and NH4Cl. The N/V atomic ratio, x, of the VNx formed was 1.20 at 600 °C, 1.15 at 700 °C, 1.14 at 800 °C, and 1.13 at 900 and 1000 °C. The lattice constants of the VNx formed were shown. The reaction process of gaseous VCl4 with ammonia can be represented as follows: The reaction of gaseous VCl4 with ammonia first occurs to form VCl4·4NH3. Above about 215 °C, the reaction of VCl4·4NH3 with ammonia also occurs to form VNx. At 1100 °C, in addition to these reactions, the reaction of gaseous VCl4 with hydrogen formed by the thermal dissociation of ammonia occurs to form VCl2. On heating the VNx, formed by the vapor-phase reaction, at temperatures higher than 500 °C in an argon atmosphere, the value of x decreased with the increase in the heating temperature to 1.03 at 900–1000 °C.
References
11
Referenced
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{'key': '2024011802080498900_r1'}
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{'key': '2024011802080498900_r3'}
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{'key': '2024011802080498900_r5'}
{'key': '2024011802080498900_r6'}
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{'key': '2024011802080498900_r10'}
{'key': '2024011802080498900_r11'}
Dates
Type | When |
---|---|
Created | 19 years, 1 month ago (July 25, 2006, 9:02 p.m.) |
Deposited | 1 year, 7 months ago (Jan. 17, 2024, 9:08 p.m.) |
Indexed | 1 year, 7 months ago (Jan. 20, 2024, 5:38 a.m.) |
Issued | 42 years, 10 months ago (Nov. 1, 1982) |
Published | 42 years, 10 months ago (Nov. 1, 1982) |
Published Online | 19 years, 2 months ago (June 27, 2006) |
Published Print | 42 years, 10 months ago (Nov. 1, 1982) |
@article{Saeki_1982, title={Reaction Process of Vanadium Tetrachloride with Ammonia in the Vapor Phase and Properties of the Vanadium Nitride Formed}, volume={55}, ISSN={1348-0634}, url={http://dx.doi.org/10.1246/bcsj.55.3446}, DOI={10.1246/bcsj.55.3446}, number={11}, journal={Bulletin of the Chemical Society of Japan}, publisher={Oxford University Press (OUP)}, author={Saeki, Yuzo and Shimizu, Takashi and Yajima, Akimasa and Matsuzaki, Ryoko}, year={1982}, month=nov, pages={3446–3449} }