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Pt and Ni Carbon Nitride electrocatalysts for the oxygen reduction reaction (Articolo in rivista)

Type

Label

Pt and Ni Carbon Nitride electrocatalysts for the oxygen reduction reaction (Articolo in rivista) (literal)

Anno

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Alternative label

Vito Di Noto (a,b), Enrico Negro (a), Rocco Gliubizzi a( ), Silvia Gross (b), Chiara Maccato (a), Giuseppe Pace (c) (2007)
Pt and Ni Carbon Nitride electrocatalysts for the oxygen reduction reaction
in Journal of the Electrochemical Society
(literal)

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Vito Di Noto (a,b), Enrico Negro (a), Rocco Gliubizzi a( ), Silvia Gross (b), Chiara Maccato (a), Giuseppe Pace (c) (literal)

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Rivista

Note

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1,2,3,5 Dipartimento di Scienze Chimiche, Università di Padova, 35131 Padova, Italy 1,4 : Istituto di Scienze e Tecnologie Molecolari del Consiglio Nazionale delle Ricerche Consorzio Interuniversitario Nazionale per la Scienze e Tecnologia dei Materiali, 35131 Padova, Italy 6 : Istituto di Scienze e Tecnologie Molecolari, Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali del Consiglio Nazionale delle Ricerche, c/o Dipartimento di Processi Chimici dell'Ingegneria, 35131 Padova, Italy (literal)

Titolo

Pt and Ni Carbon Nitride electrocatalysts for the oxygen reduction reaction (literal)

Abstract

A new synthesis route aimed at the preparation of electrocatalysts to be used for fuel cells is described. A precursor material is prepared starting from a platinum chloride and a nickel cyanometalate complex in the presence of sucrose, which acts as an organic binder. The most critical steps for the preparation of the electrocatalysts are the thermal decomposition of the precursor, which was studied in the 400-700°C temperature range, and the procedure for activating the products. The resulting materials were extensively characterized via inductively coupled plasma atomic emission spectroscopy, elemental analysis, high-resolution thermogravimetry, vibrational spectroscopy in the middle and far infrared, X-ray photoelectron spectrosopy, X-ray diffraction, scanning electron microscopy, and cyclic voltammetry. These investigations yielded information regarding the influence of the preparation conditions on the structure of the final materials and their electrocatalytic performance. The electrochemical efficiency in the oxygen reduction reaction of the proposed electrocatalysts proved to be much higher than that shown by standard materials having a similar platinum content. This synthesis route appears very promising due to the ease with which materials having the desired metal composition can be obtained and the promising electrochemical performance of the resulting electrocatalysts. (literal)

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