9021

8366

كارشناسي ارشد

شيمي معدني

اصفهان: دانشگاه صنعتي اصفهان، دانشكده شيمي

1392

ده،91ص.: مصور،جدول،نمودار

ص.ع.به فارسي و انگليسي

شيمي

ID8366

A study of electrocatalytic effect of Ru dmb CH3CN Cl3 Ru dmb CH3CN 3Cl PF6 2 and Ru dmb tptz Cl PF6 2 complexes on the electrochemical reduction of CO2 to CO Preparation and characterization of nano Gd2O3 Azam Aghamohamadi a aghamohamadi@ch iut ac ir Date of Submission 2014 01 22 Department of Chemistry Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language FarsiH Hadadzadeh Prof hadad@cc iut ac ir Abstract In this thesis three mononuclear Ru III complexes Ru dmb CH3CN Cl3 Ru dmb CH3CN 3Cl PF6 2 and Ru dmb tptz Cl PF6 2 where dmb is 4 4 dimethyl 2 2 bipyridine andtptz is 2 4 6 tris 2 pyridyl 1 3 5 triazine were synthesized and characterized by elemental analysis FT IR UV Vis and fluorescence spectroscopy The electrocatalytic reduction of CO2 to CO by these complexes hasinvestigated by cyclic voltammetry technique The voltammograms showed that the multi electron reductionof CO2 was catalyzed by the metal complexes and a proper mechanism was proposed for these reductionreactions Gd2O3 nanoparticles were also synthesized through calcination of Gd MeO 3 DMF 3 H2O 2 at600 OC for 2 hours The Gd III complex showed several intense emission bands at UV and Vis regions XRD study of nano oxide Gd2O3 indicated a cubic crystal system The nano particles are pure and have aparticle size about 10 30 nm Key words Ruthenium 4 4 Dimethyl 2 2 bipyridine 2 4 6 Tris 2 pyridyl 1 3 5 triazine Polypyridyl complexes SEM Calcination Electrocatalytic reduction

حسن حدادزاده

حسين فرخ پور

كاظم كرمي، حسين توكل