首页|Synthesis of Mg_5( CO_3)_4( OH)_2 • 4H_2O with Flower-like Micro- structure and Its Catalytic Activity for Transesterification of Dimethyl Carbonate with Phenol
Synthesis of Mg_5( CO_3)_4( OH)_2 • 4H_2O with Flower-like Micro- structure and Its Catalytic Activity for Transesterification of Dimethyl Carbonate with Phenol
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A novel flower-like hydrated magnesium carbonate hydroxide, Mg_5 (CO_3)_4(OH)_2 • 4H_2O, with micro-structure composed of individual thin nano-sheets was synthesized using a facile solution route without the use of template or organic surfactant. Reaction time has an important effect on the final morphology of the product. The micro-structure and morphology of Mg_5 (CO__3)_4 ( OH)_2 • 4H_2O were characterized by means of X-ray diffractometry ( XRD) , field-emission scanning electron microscopy( FE-SEM) . Brunauer-Emmett-Teller(BET) surface areas of the samples were also measured. The probable formation mechanism of flower-like micro-structure was discussed. It was found that Mg_5 (CO_3)_4(OH)_2 • 4H_2O with flower-like micro-structure was a novel and efficient catalyst for the synthesis of diphenyl carbonate (DPC) by transesterification of dimethyl carbonate (DMC) with phenol.
WANG Qiang、WANG Ke-li、WU Xing-long、LUO Sheng-jun、HU Chang-wen
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The Institute for Chemical Physics, Department of Chemistry, State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, P. R. China
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