Mikrodalga Destekli Poliol Yöntemiyle Sentezlenen Pd/C Katalizörler için Formik Asit Elektro-Oksidasyonu

Karbon destekli paladyum parçacıklarının sentezi poliol prosesi ile gerçekleştirildi. Mikrodalga destekli poliol yöntemi ile sentezlene Pd katalizörlerin formik asit elektrooksidasyon reaksiyonu için aktivitesi araştırıldı. Katalizör yapıları XRD ile karakterize edildi. Katalizör hazırlama parametrelerinin katalizörlerin elektrokatalitik performansına etkisi incelendi. Formik asitin oksidasyonu için Pd/C katalizörlerin elektrokatalitik özellikleri dönüşümlü voltametri (CV) ile incelendi. 30 s ve 130 oC'de sentezlenen Pd/C katalizörünün elektrokatalitik aktivitesinin, farklı sıcaklık ve reaksiyon zamanlarında sentezlenen diğer Pd /C katalizörlerinden daha yüksek olduğu bulundu. Artan reaksiyon süresinin ve sıcaklığın parçacık boyutunu arttırdığı düşünülmektedir.

Anahtar Kelimeler:

Formik asit elektrooksidasyonu, Paladyum katalizörler, Hazırlama şartları

Pd/C CATALYSTS SYNTHESIZED BY MICROWAVE ASSISTED POLYOL METHOD FOR FORMIC ACID ELECTRO-OXIDATION

Synthesis of carbon supported palladium particles based on a polyol process was investigated. The activity of Pd catalysts, synthesized by microwave assisted polyol method on carbon support, has been examined for formic acid electro-oxidation reaction. The catalysts were characterized with XRD to identify their nanostructure properties. The effect of catalyst preparation parameters on electrocatalytic performance of catalysts was examined. The electrocatalytic properties of Pd/C catalysts for the oxidation of formic acid were investigated by cyclic voltammetry (CV). The electrocatalytic activity of Pd/C synthesized at 30 s and 130 oC are higher than the other Pd/C catalysts synthesized at different temperature and reaction time. It is proposed that the longer reaction time and higher temperature increased the particle size.

Keywords:

Formic acid electro-oxidation Palladium catalysts, Polyol method, Preparation conditions,

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