Two-step self-assembly of nanodisks into plate-built cylinders through oriented aggregation

Article Abstract:

The self-assembly of hexagonal LaF(sub 3) with cavities into plate-built cylinders proceeding in acidic solution in the absence of organic additive is presented in two steps. The two steps includes the nanodisks sequentially aggregated together by coalescence mainly through planes to form larger monocrystalline plates followed by Ostwald ripening to smooth their surfaces, and the surface-smoothed plates are stacked face to face with each other along the [001] direction to construct the cylinders.

Lanthanum & Compounds, Analysis, Crystallization, Fluorides, Lanthanum

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Metastable gama-MnS hierarchical architectures: Synthesis, characterization, and growth mechanism

Article Abstract:

Preparation of shape-controlled metastable gama-MnS semiconductor nanocrystals was achieved on a large scale through a simple solvothermal method in the presence of PVP. The optical absorption measurement reveals that these novel architectures exhibit remarkable shift of absorption peak during the course of structural compaction and grain growth.

Manganese Compounds, Methods, Sulfides, Structure, Semiconductor preparation

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Quasicubic alpha-Fe2O3 nanoparticles with excellent catalytic performance

Article Abstract:

Solvothermal method was used to synthesize uniform quasicubic alpha-Fe2O3 nanoparticles by six identical planes {110}. The shape of the nanoparticles is controlled by the experimental parameters such as reaction duration and surfactant.

Science & research, Research, Iron compounds, Quasicrystals

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