多孔纳米团聚体的两步合成及其形成机理

IF 0.6 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materiali in tehnologije Pub Date : 2023-07-29 DOI:10.17222/mit.2023.879

Xin Li, Qiang Li, Zhenning Ma, Yan Sun

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引用次数: 0

摘要

以La(NO3)3·6H2O、CuSO4·5H2O和NH3·H2O为原料，研究了两步法合成纯LaCuOS纳米团聚体的方法。结果表明，前驱体在空气中800℃作用2 h可转化为La2O2SO4、La2(SO4)3和CuO相，在氩气和氢气中800℃还原5 h可转化为纯LaCuOS相。所制备的LaCuOS纳米聚集体分散性差，粒径分布范围宽(50 ~ 100 nm)。

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TWO-STEP SYNTHESIS AND FORMATION MECHANISM FOR LACUOS NANO-SIZED AGGLOMERATES

We have developed a two-step synthesis method to obtain pure LaCuOS nano-sized agglomerates using La(NO3)3·6H2O, CuSO4·5H2O and NH3·H2O as the starting materials. The result shows that the precursor can be converted into La2O2SO4, La2(SO4)3 and CuO phases at 800 °C for 2 h in air, which was then converted into a pure LaCuOS phase by a reduction at 800 °C for 5 h in a flowing argon and hydrogen atmosphere. The as prepared LaCuOS nano-aggregates have poor dispersion and a wide size distribution range (50–100 nm).

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来源期刊

Materiali in tehnologije 工程技术-材料科学：综合

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal MATERIALI IN TEHNOLOGIJE/MATERIALS AND TECHNOLOGY is a scientific journal, devoted to original papers and review scientific papers concerned with the areas of fundamental and applied science and technology. Topics of particular interest include metallic materials, inorganic materials, polymers, vacuum technique and lately nanomaterials.