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Preparation method and application of nano high-entropy single-phase perovskite oxide
The invention provides a preparation method and application of a nano high-entropy single-phase perovskite oxide, and belongs to the technical field of capacitors. The nano high-entropy single-phase perovskite oxide meets the structural formula: La (M0. 8X0. 2) O3, M comprises elements Fe, Co, Ni and Cr, and X is any one of Cu, Zn and Mn, accurately weighing according to a stoichiometric ratio corresponding to the structural formula of the nano high-entropy single-phase perovskite oxide, dissolving nitrate of metal lanthanum, metal nitrate containing the M element and nitrate containing the X element in an ethanol solution, and stirring to obtain a mixed solution; and adding a nano-sized carboxylated multi-walled carbon nanotube as a sacrificial template into the mixed solution, standing overnight, completely drying, and calcining the obtained solid precursor to obtain the nano high-entropy single-phase perovskite oxide. The nano high-entropy single-phase perovskite oxide provided by the invention has relatively low internal resistance, relatively high specific capacitance and good electrochemical performance.
本申请提供一种纳米高熵单相钙钛矿氧化物的制备方法和应用，属于电容器技术领域。纳米高熵单相钙钛矿氧化物满足结构式：La（M0.8X0.2）O3中，M包括元素Fe、Co、Ni、Cr，X为Cu、Zn、Mn中的任一种，按纳米高熵单相钙钛矿氧化物结构式对应的化学计量比进行精确称量，将金属镧的硝酸盐、含有M元素的金属硝酸盐、含有X元素的硝酸盐溶于乙醇溶液中搅拌，得到混合溶液；混合溶液中加入纳米尺寸的羧基化多壁碳纳米管作为牺牲模板，静置过夜，完全干燥，所得固体前体煅烧得到纳米高熵单相钙钛矿氧化物。本申请所提供的纳米高熵单相钙钛矿氧化物具有较低的内阻和较高的比电容，电化学性能良好。
Preparation method and application of nano high-entropy single-phase perovskite oxide
The invention provides a preparation method and application of a nano high-entropy single-phase perovskite oxide, and belongs to the technical field of capacitors. The nano high-entropy single-phase perovskite oxide meets the structural formula: La (M0. 8X0. 2) O3, M comprises elements Fe, Co, Ni and Cr, and X is any one of Cu, Zn and Mn, accurately weighing according to a stoichiometric ratio corresponding to the structural formula of the nano high-entropy single-phase perovskite oxide, dissolving nitrate of metal lanthanum, metal nitrate containing the M element and nitrate containing the X element in an ethanol solution, and stirring to obtain a mixed solution; and adding a nano-sized carboxylated multi-walled carbon nanotube as a sacrificial template into the mixed solution, standing overnight, completely drying, and calcining the obtained solid precursor to obtain the nano high-entropy single-phase perovskite oxide. The nano high-entropy single-phase perovskite oxide provided by the invention has relatively low internal resistance, relatively high specific capacitance and good electrochemical performance.
本申请提供一种纳米高熵单相钙钛矿氧化物的制备方法和应用，属于电容器技术领域。纳米高熵单相钙钛矿氧化物满足结构式：La（M0.8X0.2）O3中，M包括元素Fe、Co、Ni、Cr，X为Cu、Zn、Mn中的任一种，按纳米高熵单相钙钛矿氧化物结构式对应的化学计量比进行精确称量，将金属镧的硝酸盐、含有M元素的金属硝酸盐、含有X元素的硝酸盐溶于乙醇溶液中搅拌，得到混合溶液；混合溶液中加入纳米尺寸的羧基化多壁碳纳米管作为牺牲模板，静置过夜，完全干燥，所得固体前体煅烧得到纳米高熵单相钙钛矿氧化物。本申请所提供的纳米高熵单相钙钛矿氧化物具有较低的内阻和较高的比电容，电化学性能良好。
Preparation method and application of nano high-entropy single-phase perovskite oxide
一种纳米高熵单相钙钛矿氧化物的制备方法和应用
MA PIANPIAN (author) / WU SHIBO (author) / CAO JINGRUI (author) / ZHOU YANG (author) / HE JIAHAO (author) / TONG ZAIZAI (author)
2024-12-13
Patent
Electronic Resource
Chinese
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