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Hydrothermal Formation of the Head-to-Head Coalesced Szaibelyite MgBO2(OH) Nanowires

Wancheng Zhu12*, Xueyi Zhang1, Lan Xiang1* and Shenlin Zhu1

Author Affiliations

1 Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China

2 Department of Chemical Engineering, Qufu Normal University, Shandong, 273165, China

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Nanoscale Research Letters 2009, 4:724-731  doi:10.1007/s11671-009-9306-x

Published: 7 April 2009


The significant effect of the feeding mode on the morphology and size distribution of the hydrothermal synthesized MgBO2(OH) is investigated, which indicates that, slow dropping rate (0.5 drop s−1) and small droplet size (0.02 mL d−1) of the dropwise added NaOH solution are favorable for promoting the one-dimensional (1D) preferential growth and thus enlarging the aspect ratio of the 1D MgBO2(OH) nanostructures. The joint effect of the low concentration of the reactants and feeding mode on the hydrothermal product results in the head-to-head coalesced MgBO2(OH) nanowires with a length of 0.5–9.0 μm, a diameter of 20–70 nm, and an aspect ratio of 20–300 in absence of any capping reagents/surfactants or seeds.

Nanowires; Szaibelyite; Magnesium borate hydroxide; Mixing; Hydrothermal