优化Na2Ti3O7纳米线合成条件，实现BaTiO3纳米线的可靠生产

IF 2.8 Q1 MATERIALS SCIENCE, CERAMICS

Open Ceramics Pub Date : 2025-07-19 DOI:10.1016/j.oceram.2025.100827

Sakhavat Dadashov , Ender Suvaci

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引用次数: 0

摘要

在这项研究中，采用了一种两步水热合成方法，包括前驱体间相的发展及其转化为多功能BaTiO₃纳米线。以Na₂Ti₃O₇粉体为前驱体中间相，考察了NaOH:TiO₂摩尔比、反应温度、搅拌速率等实验参数对前驱体结构和物相组成的影响，优化了合成条件。通过调整实验参数，成功地获得了具有所需相组成和纳米线形貌的前驱体中间相。结果表明，NaOH:TiO 2的比例从2:1变化到64:1对中间相的发育和形貌有显著影响。前驱体中间相通过二次水热反应成功转化为BaTiO₃纳米线。XRD、SEM、EDX、TG和FTIR分析证实，制备的BaTiO3纳米线具有高长宽比和单相组成。

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Optimization of Na2Ti3O7 nanowire synthesis conditions for reliable BaTiO3 nanowires production

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Optimization of Na2Ti3O7 nanowire synthesis conditions for reliable BaTiO3 nanowires production

In this study, a two-step hydrothermal synthesis method involving the development of a precursor interphase and its conversion into multifunctional BaTiO₃ nanowires was employed. Na₂Ti₃O₇ powders were developed as the precursor intermediate phase, and the synthesis conditions were optimized by investigating the effects of experimental parameters such as the NaOH:TiO₂ mole ratio, reaction temperature, and stirring rate on the structure and phase composition of the precursor. By adjusting the experimental parameters, the precursor intermediate phase with the desired phase composition and nanowire morphology was successfully obtained. It was observed that varying the NaOH:TiO₂ ratio from 2:1 to 64:1 had a significant impact on the phase development and morphology of the intermediate phase. The precursor intermediate phase was successfully converted into BaTiO₃ nanowires via a second hydrothermal reaction. XRD, SEM, EDX, TG and FTIR analyses confirmed that obtained BaTiO₃ nanowires had a high aspect ratio and single-phase composition.

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