ZHAO, XI; ZHANG, YING; SONG, YANG; WEI, GANG - In: Surface Review and Letters (SRL) 14 (2007) 05, pp. 951-955
TiCl4/MgCl2, TiCl4/MgCl2/donor catalysts and TiCl4/donor complexes were prepared in this experiment; the donors are EB, DNBP, DBPG, DBW, PPDE, and BMMF respectively. Chemical states of Ti on the surface of MgCl2-supported Z–N catalysts were analyzed with X-ray photoelectron spectroscopy (XPS)....