Mechanochemical Synthesis of Lanthanum Oxyfluoride by Grinding Lanthanum Oxide with Poly(vinylidene fluoride)

A mixture of lanthanum oxide and poly(vinylidene fluoride) (PVDF) was ground in air by a planetary ball mill to investigate the mechanochemical (MC) reaction between the two materials. The MC reaction proceeds with an increase in the grinding time, forming lanthanum oxyfluoride in the ground product. The reaction yield reaches about 98% at 240 min. The organic phases from PVDF in the ground sample after the MC reaction have C−O and C−O−H bindings.