Journal of Inorganic Materials ›› 2021, Vol. 36 ›› Issue (1): 69-74.DOI: 10.15541/jim20200180

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Efficient Preparation of CuGeO3 with Controllable Morphology Using CuCl2 as Copper Source

XIAO Yumin1,Li Bin1,QIN Lizhao1(),LIN Hua1,LI Qing1,LIAO Bin2   

  1. 1. Faculty of Materials & Energy, Southwest University, Chongqing 400715, China;
    2. College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
  • Received:2020-04-03 Revised:2020-05-04 Published:2021-01-20 Online:2020-06-09
  • About author:XIAO Yumin(1995-), female, Master candidate. E-mail:
  • Supported by:
    Fundamental Research Funds for the Central Universities(XDJK2019D004);Guangdong Province Key Area R&D Program(2019B090909002);National Natural Science Foundation Joint Fund Key Project(U1865206);National Defense Science and Technology Key Laboratory Fund(614220207011802)


Copper germanate has attracted wide attention because of its spin-Peierls transition and excellent lithium storage performance. Typical hydrothermal method uses weak acid salts such as Cu(CH3COO)2 to promote the ionization of water to obtain OH - required for the growth of CuGeO3. Although the operation is facile, the reaction time is long and the efficiency is low. In this work, CuCl2 was used as the copper source instead of Cu(CH3COO)2 and the pH of precursor solution was adjusted to control the adsorption capacity of each crystal plane and the supersaturation of the solution, so as to achieve efficient preparation of CuGeO3 nanorods and CuGeO3 hexagonal nanosheets, effectively shortening the reaction time to 8 h. Based on this, one-dimensional structure-directing agent ethylenediamine was added to accelerate the reaction process while limiting the two-dimensional planar growth of CuGeO3, and six different sizes ( 100 nm, 200-300 nm, 350-500 nm, 400-700 nm, 1-2 μm and 1-3 μm) of uniform CuGeO3 nanowires were efficiently prepared.

Key words: CuGeO3 nanowires, CuCl2, hydrothermal method, morphology controlled

CLC Number: