Abstract
We report a microwave-assisted solvothermal method for the preparation of AlOOH hierarchically nanostructured microspheres constructed by nanosheets. The formation mechanism of AlOOH hierarchically nanostructured microspheres is discussed. γ-Al2O3 hierarchically nanostructured microspheres are obtained by heating AlOOH hierarchically nanostructured microspheres to 500 °C in air, and the morphology is well preserved during the thermal transformation process. The products are characterized by X-ray powder diffraction, transmission electron microscopy, and scanning electron microscopy.
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