... PREPARE CATALYTIC COMPLEXES FOR THE TREATMENT OF MOTORBIKE’S EXHAUSTED GASES Chuyên ngành: K ỹ thu t hóa học Mã số: 62520301 DOCTOR OF PHILOSOPHY THESIS: CHEMICAL ENGINEERING SUPERVISOR: Assoc Dr ... affected positively on micelle‟s formation, thus, ZrO(NO )2 xH2 O was used in this experiment The molar ratio of Al : Ce : Zr is 20 : : for all experiments Thus, 20 mmol Al(NO )3 9H2 O, mmol Ce(NO ... and Vietnam proved the high ability of Co, Ni, Mn or Cu… for the conversion of CO, NO x and HC Thus, it may be possible to prepare the inexpensive, effective catalytic converters for a developing...