Fig. 4
From: Zirconia-based catalyst for the one-pot synthesis of coumarin through Pechmann reaction
XRD spectrum of ZrO2-TiO2, ZrO2-ZnO, and ZrO2/cellulose
Fig. 4 | Nanoscale Research Letters
From: Zirconia-based catalyst for the one-pot synthesis of coumarin through Pechmann reaction
XRD spectrum of ZrO2-TiO2, ZrO2-ZnO, and ZrO2/cellulose