Preparation of Gd2O3 nanoparticles from a new precursor and their catalytic activity for electrochemical reduction of CO2 to CO

	Preparation of Gd2O3 nanoparticles from a new precursor and their catalytic activity for electrochemical reduction of CO2 to CO
Article 3, Volume 1, Issue 1, Winter 2015, Page 21-30 PDF (2.62 MB)
Document Type: Research Paper
DOI: 10.22104/jpst.2015.75
Author
Mohammad Taghi Behnamfar
Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
Abstract
The mononuclear Gd(III) complex, [Gd(L)3(H2O)5] (where L is alizarin yellow R (NaC13H8N3O5)), has been prepared in H2O under reflux condition. The Gd(III) complex has been characterized by elemental analysis and spectroscopic methods (UV–Vis and FT–IR). The Gd2O3 nanoparticles were prepared by the calcination of the Gd(III) complex in air at different temperatures up to 600 °C for 2 h. The calcination temperature was the key parameter which was changed for more investigation. The products were characterized by various methods such as FT–IR, X-ray diffraction analysis and field-emission scanning electron microscopy (FE–SEM). The electrochemical studies of the Gd(III) complex and Gd2O3 nanoparticles were performed in acetonitrile. The voltammograms in the absence and presence of carbon dioxide indicate that [Gd(L)3(H2O)5] and Gd2O3 nanoparticles can catalyze the electrochemical reduction of CO2 to CO.
Keywords
Gd(III) complex; Gd2O3 nanoparticles; CO2 reduction; Cyclic voltammetry; alizarin yellow R


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