Chemical Research in Chinese Universities ›› 2018, Vol. 34 ›› Issue (1): 1-7.doi: 10.1007/s40242-017-7334-0

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Hydrothermal Synthesis and Magnetic Properties ofSmCr0.5M0.5O3(M=Fe and Mn) Micro-plates

ZHANG Jiaqi1, WANG Shan2, YUAN Long1, HOU Changmin1   

  1. 1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China;
    2. Department of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin 132022, P. R. China
  • Received:2017-10-24 Online:2018-02-01 Published:2018-01-20
  • Contact: HOU Changmin,E-mail:houcm@jlu.edu.cn E-mail:houcm@jlu.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21427802), the “Twelfth Five Year” Project of Science and Technology Research in the Education Department of Jilin Province, China(No.2015-466) and the Natural Science Fund of Jilin Provincial Science & Technology Department, China(No.20160101326JC).

Abstract: Nanostructured B-site Fe and Mn doped SmCrO3 was prepared by mild hydrothermal growth. The as-prepared crystals are mainly micrometer-scale plates, ranging from rhombus(SmCr0.5Fe0.5O3) to elongated he- xagonal(SmCr0.5Mn0.5O3), and finally to well-edged rectangular(SmCr0.17Mn0.5Fe0.33O3) plates. Fe and Mn doped SmCrO3 crystals are indexed into Pbnm space group. The cell parameters of SmCr0.5Fe0.5O3 are slightly smaller than that of pristine SmCrO3. Binding energy analysis of Cr, Mn and Fe in SmCr0.17Mn0.5Fe0.33O3 sample indicates that they all possess +3 oxidation states. Temperature dependent magnetization of the as-prepared samples presents obviously stronger ferromagnetic interactions than the undoped counterparts. This work represents a remarkable development for hydrothermal synthesis into fabricating perovskite oxide crystals with uniform distribution of doping ions.

Key words: Hydrothermal synthesis, Perovskite structure, B-Site ordering, Magnetic property