Zhou Zhengzhi, Sun Qunhui, Hu Zeshan, Deng Yulin
School of Chemical and Biomolecular Engineering, IPST at GT, Georgia Institute of Technology, 500 10th Street, N.W., Atlanta, Georgia 30332-0620, USA.
J Phys Chem B. 2006 Jul 13;110(27):13387-92. doi: 10.1021/jp0612228.
The nanobelt formation of magnesium hydroxide sulfate hydrate (MHSH) via a soft chemistry approach using carbonate salt and magnesium sulfate as reactants was successfully demonstrated. X-ray diffraction (XRD), energy dispersion X-ray spectra (EDS), selected area electron diffraction (SAED), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) analysis revealed that the MHSH nanobelts possessed a thin belt structure (approximately 50 nm in thickness) and a rectangular cross profile (approximately 200 nm in width). The MHSH nanobelts suffered decomposition under electron beam irradiation during TEM observation and formed MgO with the pristine nanobelt morphology preserved. The formation process of the MHSH nanobelts was studied by tracking the morphology of the MHSH nanobelts during the reaction. A possible chemical reaction mechanism is proposed.
通过以碳酸盐和硫酸镁为反应物的软化学方法成功证明了水合硫酸氢氧化镁（MHSH）纳米带的形成。X射线衍射（XRD）、能量色散X射线光谱（EDS）、选区电子衍射（SAED）、扫描电子显微镜（SEM）和透射电子显微镜（TEM）分析表明，MHSH纳米带具有薄带结构（厚度约50nm）和矩形横截面（宽度约200nm）。在TEM观察期间，MHSH纳米带在电子束照射下发生分解，并形成了保留原始纳米带形态的MgO。通过跟踪反应过程中MHSH纳米带的形态来研究MHSH纳米带的形成过程。提出了一种可能的化学反应机理。
