Synthesis and Characterization of a New Layered Lithium Zinc Phosphate Hydrate
โ Scribed by A. Bensalem
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 306 KB
- Volume
- 162
- Category
- Article
- ISSN
- 0022-4596
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โฆ Synopsis
A new layered lithium zinc phosphate hydrate, Li 2 Zn(HPO 4 ) 2 ' 0.66H 2 O, isostructural with Na 2 Zn(HPO 4 ) 2 '4H 2 O was prepared by the direct ambient pressure and temperature reaction between zinc 2,4-pentanedionate, phosphoric acid, and lithium hydroxide. The as-prepared sample is monoclinic (a โซุโฌ 8.896(8) A s , b โซุโฌ 13.092(5) A s , c โซุโฌ 10.882(9) A s , and โซุโฌ 115.760( 6)3). The prepared solid undergoes three thermal transformations when it is heated from 110 to 6003C. The 5rst two transformations are due to the release of intercalated water molecules and the third one is due to the HPO 2ุ 4 +P 2 O 4ุ 7 transition.
๐ SIMILAR VOLUMES
A new hydrated phosphate of magnesium with a layered structure was prepared hydrothermally under mild conditions. Provided it is not heated beyond \(200^{\circ} \mathrm{C}\), this solid undergoes reversible dehydrationrehydration with the layered structure remaining intact. The as-prepared precursor
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