Zhenya Liu

Publications (3)24.08 Total impact

• Article: Self-templated synthesis of single-crystal and single-domain ferroelectric nanoplates.

  Chunying Chao, Zhaohui Ren, Yihan Zhu, Zhen Xiao, Zhenya Liu, Gang Xu, Jiangquan Mai, Xiang Li, Ge Shen, Gaorong Han
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  ABSTRACT: Free-standing single-crystal PbTiO(3) nanoplates were synthesized by a facile hydrothermal method. A "self-templated" crystal growth is presumed to lead to the formation of the PbTiO(3) nanoplates, which have ferroelectric single-domain structures, whose polarization areas can be manipulated by writing and reading. The nanoplates are also effective catalysts for the oxidation of carbon monoxide.
  Angewandte Chemie International Edition 08/2012; 51(37):9283-7. · 13.45 Impact Factor
• Article: Size-Controlled Single-Crystal Perovskite PbTiO(3) Nanofibers from Edge-Shared TiO(6) Octahedron Columns.

  Zhenya Liu, Zhaohui Ren, Zhen Xiao, Chunying Chao, Xiao Wei, Yong Liu, Xiang Li, Gang Xu, Ge Shen, Gaorong Han
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  ABSTRACT: Tetragonal perovskite PbTiO(3) nanofibers are prepared by a two-step method comprising synthesis of pre-perovskite (PP) PbTiO(3) nanofibers by a hydrothermal method followed by annealing at 680 °C. Adjustment of the Pb/Ti molecular ratio in the hydrothermal reaction controls the size of the PP nanofibers and hence of the perovskite PbTiO(3) nanofibers. Ferroelectric properties remain in fibers of diameter 13 nm.
  Small 07/2012; 8(19):2959-63. · 8.35 Impact Factor
• Article: Improved Room‐Temperature Ferromagnetism in Self‐Assembled Disk‐Like Superstructures of Fe‐Doped PbTiO3 Nanocrystals

  Zhenya Liu, Zhaohui Ren, Xiao Wei, Zhen Xiao, Xiaohong Hou, Ge Shen, Gang Xu, Gaorong Han
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  ABSTRACT: Large improvement of room-temperature ferromagnetism has been achieved in disk-like self-assembled Fe(1%)-doped PbTiO3 nanocrystals synthesized by a hydrothermal reaction route, where KOH was used as precipitator, and poly(ethylene glycol) as a surfactant. Fe-doped PbTiO3 nanocrystals assembled into disk-like superstructure with a diameter about 10 μm. The saturation magnetization (Ms) of the Fe-doped PbTiO3 sample is close to 7.54 × 10−2 emu/g with a coercive field (Hc) of 50 Oe, nearly 27 times larger than that reported previously (≈2.8 × 10−3 emu/g for Fe(1%)-doped PbTiO3 using NH3·H2O as a precipitator). The improvement of ferromagnetism of the sample is attributed to the interface effect between the nanocrystals.
  Journal of the American Ceramic Society 10/2010; 93(11):3610 - 3613. · 2.27 Impact Factor