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

  • Xin Li Shenyang Jianzhu University, Department of Science, Shenyang, 110168, P.R. China
  • Qiang Li Shenyang Jianzhu University, Department of Science, Shenyang, 110168, P.R. China
  • Zhenning Ma Shenyang Jianzhu University, Department of Science, Shenyang, 110168, P.R. China
  • Yan Sun Shenyang Jianzhu University, Department of Science, Shenyang, 110168, P.R. China
Keywords: lanthanide copper oxychalcogenide, two-step synthesis, co-precipitation, reduction

Abstract

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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Published
2023-07-29
How to Cite
1.
Li X, Li Q, Ma Z, Sun Y. TWO-STEP SYNTHESIS AND FORMATION MECHANISM FOR LACUOS NANO-SIZED AGGLOMERATES. MatTech [Internet]. 2023Jul.29 [cited 2025Nov.18];57(4):359–366. Available from: https://mater-tehnol.si/index.php/MatTech/article/view/879