Nano rods and flowerlike synthesis by hydrothermal growth method without catalysts Thamir A.A. Hassan*, Abdulkareem M. Ali**, Ali Qassim *** *President Of Alkarkh University Of Science **University Of Baghdad College Of Science Chemical Dept. *** University Of Baghdad College Of Science Physics Dept. Email/ Thamir_h@yahoo.com & Thamiralkadimy2014@gmail.com Abstract Without any catalyst or buffer layer before the reaction by hydrothermal method was used to prepare ZnO nano rods and flowerlike. The process took place inside Teflon lined stainless steel autoclave with volume 50 ml (homemade). ZnO nano rods and flowerlike were successfully synthesized using. ZnO nanoparticles (20 nanometer) and NaOH (concentrations 3M) was the starting materials for the chemical reaction under stirring. The suspension was transferred into a Teflon lined sealed stainless steel autoclave and kept at 90 0 C for 24 h,48 h and 72 h. The influence of the synthesis process on the morphology, the crystallinity and structural properties are studied by X-ray diffraction and field emission scanning electron microscope (FE-SEM), the experimental pattern of the films show that diffraction peaks can be assigned to the Wurtzite hexagonal-shaped ZnO as shown in the FE-SEM pictures, also the morphology of the films studied by atomic force microscope shows that the prepared thick films have high roughness specially for the powder prepared 46 h . Keywords: ZnO, nano rods, Flowerlike, dislocation density Δلخاص ا نϭ بد عواملΓ مساعد تم تحضيرΕاΒ قضيكسيدϭ الخارصن اΔانوي النΔالزهريϭ Δ بطريقΔدرجϬ الΔاري الحر حيث تم تصنيعίاϬ الج الخ اι ΔيϠϤعϠ لياϠ محمنϭ ϝ خاضعϭ Δ بوتق منونϠ التف بحجم˾0 يϠ م لترΔρ محا Δسطوان با منΫلفوا اϡϭقاϤ الصداϠ لخدمتاستϭ Δضاف اϡ غرااحدϭ منΕاΒيΒ حكسيϭ ا دلخاصين اϱانو النϰ ال ثاΔ ث موارتي منكسيدϭ هيدرضعϭيوموΩ الصو بداخلΔوتقΒ ال بعد مزجهϝوϠجϤ .الابيض اونϜتϤ الضعϭ بΔ درج تسعونΔوبΌ مΩدϤ ل2˽ Δ ساعϭ ˽ Δ ساعϭ 2 Δ ساع ثمرستΩ تاثير التصنيعϠ عϰ ΔيعΒ ىط السطح التراكيبϭ ΔوريϠΒ الΔونϜتϤ ال منϝ خاΕ فحوصاΔاشع اΔ السينيΏوϜرسرϜايϤالϭ اسحϤ النيϭترϜال ا ΏوϜرسϜميϭ Γ القوΔريά ال حيث بينتلنتائج ا انوϤ النحاصل ال كانϩ باتجالϜ ش( al hexagon ( معرتفاع ا Δونθ بالخΔ السطحياخص باΔΒ بالنسΝΫوϤ الننقيΒتϤ ال˽ Δ ساع ΕاϤϠϜ الكسيدϭ:اΔΒفتاحϤ اللخاؤصين اΕاΒ ،القضيΔانوب النΔافΜ،كΕلزهريا ،اΕعانخاا ا