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Large mesoporous SnO 2 powders have been prepared by employing SnCl 2 ·H 2 O as an Sn-source and the self-assembly of a triblock copolymer as a surfactant. Large mesoporous structure along with a sharp pore size distribution around 4nm and a crystallite size of 4nm could be maintained in the resultant powders even after calcination at 600°C for 5h by phosphoric acid (PA) treatment...
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