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Journal of Nanostructures، جلد ۱۰، شماره ۲، صفحات ۲۳۹-۲۵۷
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عنوان انگلیسی Enhanced Catalytic Activity of Pt-NdFeO3 Nanoparticles Supported on Polyaniline-Chitosan Composite Towards Methanol Electro-Oxidation Reaction
چکیده انگلیسی مقاله In this work, NdFeO3 nanoparticles were synthesized through a simple co-precipitation method. The formation of NdFeO3 particles was verified by X-ray powder diffraction, infrared spectroscopy, vibrating sample magnetometer, and transmission electron microscopy analysis. Polyaniline and chitosan were employed as proper support for production of metal nanoparticles. Novel Pt-NFO/PA-CH nanocomposite was fabricated by immobilization of Pt nanoparticles on the PA-CH support in the presence of NdFeO3 nanoparticles. The prepared nanocomposite w::as char::acterized by transmission electron microscopy and X-ray powder diffraction analysis. The catalytic performance of the Pt-NFO/PA-CH nanocomposite was evaluated for electro-oxidation of methanol through CO stripping voltammetry, cyclic voltammetry, chronoamperometry, and electrochemical impedance spectroscopy. Durability of the Pt-NFO/PA-CH catalyst was investigated and the effects of several factors such as temperature, scan rate, and methanol concentration were studied for methanol oxidation. Enhanced catalytic performance of Pt-NFO/PA-CH nanocatalyst compared to Pt/PA-CH catalyst recommends its application for methanol electro-oxidation in direct methanol fuel cells.
کلیدواژه‌های انگلیسی مقاله Chitosan, Methanol Electro-oxidation, NdFeO3, Polyaniline
نویسندگان مقاله Somaye Khammarnia |
Chemistry Department, Payame Noor University, 19395-4697, Tehran, Iran

Alireza Akbari |
Chemistry Department, Payame Noor University, 19395-4697, Tehran, Iran

Mehri-Saddat Ekrami-Kakhki |
Central Research Laboratory, Esfarayen University of Technology, Esfarayen, North Khorasan, Iran

Jilla Saffari |
Department of Chemistry, Zahedan Branch, Islamic Azad University, P.O. Box 98135-978, Zahedan, Iran

نشانی اینترنتی http://jns.kashanu.ac.ir/article_106056_f2903dd01f857157d23c49f068361e84.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/497/article-497-2376882.pdf
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