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Py-IR and PyTPD results indicated the addition of RGO led to the increase of medium Lewis acid sites of TiO2, which are positive for the transesterification reaction. The TiO2¨CRGO composite with 50 wt% RGO exhibited a remarkable catalytic performance for the transesterification of dimethyl carbonate with phenol to diphenyl carbonate.Õâ¸ö±ê×¼Ó¦¸ÃÔõô·­Ò룬Âé·³¸÷λ°ïÖúÒ»ÏÂ
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