ChemInform Abstract: Preparation of La_2‐xSr_xNiO₄ (x = 0—1.3) Conducting Oxides via a Citrate Route.

Abstract

Preparation of La 2−x SrxNiO 4 (x = 0-1.3) Conducting Oxides via a Citrate Route.-The nickelates (IV) are synthesized via a citrate route and a classical ceramic route for comparative studies. The citrate route, requiring significantly lower temperatures than the ceramics methodology, provides a finely dispersed powder that is more prone to sintering than the corresponding ceramics. Moreover, the samples derived from citrates are more dense and exhibit higher conductivity. -(TOLOCHKO, S. P.; MAKHNACH, L. V.; KONONYUK, I. F.; VASHUK, V. V.; LOMONOSOV, V. A.; HAUCK, J.; ALTENBURG, H.; SHELEKHINA, V. M.; Neorg. Mater. 36 (2000) 11, 1353-1357; Inst. obshch. neorg. khim. Akad. nauk Belarusi, Minsk, Belarus; RU)