Synthesis, Optical and Electrical Properties of High-Entropy Niobate (Mg0.2Cu0.2Ni0.2Co0.2Zn0.2)Nb2O6 with a Columbite Structure

IF 1.8 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Inorganic Chemistry Pub Date : 2024-10-29 DOI:10.1134/S0036023624602198

M. S. Koroleva, V. S. Maksimov, I. V. Piir

引用次数: 0

Abstract

The high-entropy niobate (Mg_0.2Cu_0.2Ni_0.2Co_0.2Zn_0.2)Nb₂O₆ with a columbite structure has been synthesized for the first time by a modified solution combustion method followed by high-temperature sintering. According to the diffuse reflectance spectra, the direct band gap is 3.36 eV. The niobate is characterized by the mixed electronic–ionic conductivity (2.5 × 10^–3 S/cm at 750°С) comparable with the conductivity of columbite Mg_0.8Cu_0.2Nb₂O₆.

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具有柱状结构的高熵铌酸盐（Mg0.2Cu0.2Ni0.2Co0.2Zn0.2）Nb2O6的合成及光电性质

采用改进的溶液燃烧法和高温烧结法，首次合成了具有柱状结构的高熵铌酸盐（Mg0.2Cu0.2Ni0.2Co0.2Zn0.2）Nb2O6。根据漫反射光谱，直接带隙为3.36 eV。铌酸盐的混合电导率（在750°С时为2.5 × 10-3 S/cm）与柱状体Mg0.8Cu0.2Nb2O6的电导率相当。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Russian Journal of Inorganic Chemistry 化学-无机化学与核化学

CiteScore

3.10

自引率

38.10%

发文量

237

审稿时长

3 months

期刊介绍： Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.