The TEM experiments were performed with the JEM-2000EX microscope, using an accelerating voltage of 100 kV. For the TEM analysis, a sample was dispersed in absolute alcohol by an ultrasonic bath and deposited on a Formvar coated 200 mesh Cu grids
The TEM experiments were performed with the JEM-2000EXmicroscope, using an accelerating voltage of 100 kV. For the TEManalysis, a sample was dispersed in absolute alcohol by an ultrasonicbath and deposited on a Formvar coated 200 mesh Cu grids