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On the Possibility of Synthesizing Bimno3 at Ambient Pressure Using Low-Temperature Methods
Comments on Inorganic Chemistry ( IF 5.4 ) Pub Date : 2019-08-05 , DOI: 10.1080/02603594.2019.1643331
Inna V. Lisnevskaya 1 , Vera V. Butova 2, 3 , Mikhail I. Perebeinos 1 , Ksenia V. Myagkaya 1 , Andrey O. Letovaltsev 1 , Victor V. Shapovalov 2 , Heba Y. Zahran 4, 5 , Ibrahim S. Yahia 4, 5 , Alexander V. Soldatov 2
Affiliation  

BiMnO3 exhibit multiferroic properties, which attract much attention due to numerous potential applications. The most well-investigated and traditional techniques for synthesizing this material include high-pressure and high-temperature treatment. In this way, soft chemistry synthesis of BiMnO3 is desirable. Even though the formation of BiMnO3 at ambient pressure is not possible according to the phase diagram, many scientific groups are focused on solving this problem. In the present work, we have tested four soft chemistry routes, namely hydrothermal route, two gel methods, and coprecipitation for synthesizing BiMnO3 from Cl and NO3-containing solutions at ambient pressure in the temperature range of 200–800°C, and none resulted in the formation of BiMnO3. The experiment showed that under hydrothermal conditions manganese and bismuth oxides remain unreacted, and the other tested methods produce Bi2Mn4O10 and Bi12MnO20 instead. The formation of Bi2Mn4O10 and Bi12MnO20 from Cl-containing solutions occurs with BiOCl being formed as an intermediate phase.



中文翻译:

关于用低温方法在环境压力下合成Bimno 3的可能性

BiMnO 3表现出多铁性,由于众多潜在的应用而引起了广泛的关注。合成材料研究最深入的传统技术包括高压和高温处理。这样,期望BiMnO 3的软化学合成。尽管根据相图无法在环境压力下形成BiMnO 3,但许多科学小组仍致力于解决这一问题。在目前的工作中,我们测试了4条软化学路线,即水热路线中,两个凝胶法,共沉淀法和用于合成BiMnO 3选自Cl -和NO 3 -在200-800°C的温度范围内的常压下,溶液中不会含有BiMnO 3。实验表明,在水热条件下,锰和铋的氧化物保持未反应状态,其他测试方法分别生成Bi 2 Mn 4 O 10和Bi 12 MnO 20。Bi的形成2的Mn 4 ø 10和Bi 12 MnO的20选自Cl -含解决方案的BiOCl形成作为中间阶段发生。

更新日期:2019-08-05
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