Öz
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.
Anahtar Kelimeler
Formic acid electro-oxidation Palladium catalysts Polyol method Preparation conditions
Kaynakça
- Antolini E., 2009, “Palladium in Fuel Cell Catalysis”, Energy & Environmental Science, Vol. 2 (9), pp. 915-931.
- Guo, P., Wei, Z., Ye, W., Qin, W., Wang, Q., Guo, X., Lu, C., Zhao, X.S., 2012, “Preparation and Characterization of Nanostructured Pd with High Electrocatalytic Activity”, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 395, pp. 75−81.
- Harish S., Baranton S., Coutanceau C., Joseph J., 2012, “Microwave Assisted Polyol Method for The Preparation of Pt/C, Ru/C and PtRu/C Nanoparticles and Its Application in Electrooxidation of Methanol” Journal of Power Sources, Vol. 214, pp. 33-39.
- Husin M.H.M., Nordin M.R., Mohamad I.S., Yong L.K., 2014, “Pt –Cu Bimetallic Nanoparticles Synthesized by Polyol Method Under Different Reduction Conditions”, Journal of Mechanical Engineering and Technology, Vol. 6 (1), pp. 77-86.
- Mazumder V., Lee Y.M., Sun S.H., 2010, “Recent Development of Active Nanoparticle Catalysts for Fuel Cell Reactions”, Advanced Functional Materials, Vol. 20, pp.1224-1231.
- Nethravathi C., Anumol E.A., Rajamathi M., Ravishankar N., 2011, “Highly Dispersed Ultrafine Pt and PtRu Nanoparticles on Graphene: Formation Mechanism and Electrocatalytic Activity”, Nanoscale, Vol. 3, pp. 569–571.
- Sarto, F., Castagna, E., De Francesco, M., Dikonimos, T. M., Giorgi, L., Lecci, S., Sansovini , M., Violante, V., 2014, “Morphology and Electrochemical Properties of Pd-Based Catalysts Deposited by Different Thin-Film Techniques”, International Journal of Hydrogen Energy, Vol. 39, pp. 14701−14711.
- Shao, M.H., Huang, T., Liu, P., Zhang, J., Sasaki, K., Vukmirovic, M.B., Adzic, R.R., 2006, “Palladium Monolayer and Palladium Alloy Electrocatalysts for Oxygen Reduction”, Langmuir, Vol. 22(25), pp. 10409−10415.
- Wang, Y., Peng, H.-C., Liu, J., Huang, C. Z., Xia, Y., 2015, “Use of Reduction Rate as a Quantitative Knob for Controlling the Twin Structure and Shape of Palladium Nanocrystals”, Nano Lett., Vol. 15, pp. 1445−1450.
- Zhang Z.Y., Xin L., Sun K., Li W.Z., 2011, “Pd–Ni Electrocatalysts for Efficient Ethanol Oxidation Reaction in Alkaline Electrolyte”, International Journal of Hydrogen Energy, Vol. 36, pp. 12686-97.
- Zhu Y., Ha S.Y., Masel R.I., 2004, “High Power Density Direct Formic Acid Fuel Cells”, Journal of Power Sources, Vol. 130(1), pp. 8-14.
Mikrodalga Destekli Poliol Yöntemiyle Sentezlenen Pd/C Katalizörler için Formik Asit Elektro-Oksidasyonu
Öz
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
Kaynakça
- Antolini E., 2009, “Palladium in Fuel Cell Catalysis”, Energy & Environmental Science, Vol. 2 (9), pp. 915-931.
- Guo, P., Wei, Z., Ye, W., Qin, W., Wang, Q., Guo, X., Lu, C., Zhao, X.S., 2012, “Preparation and Characterization of Nanostructured Pd with High Electrocatalytic Activity”, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 395, pp. 75−81.
- Harish S., Baranton S., Coutanceau C., Joseph J., 2012, “Microwave Assisted Polyol Method for The Preparation of Pt/C, Ru/C and PtRu/C Nanoparticles and Its Application in Electrooxidation of Methanol” Journal of Power Sources, Vol. 214, pp. 33-39.
- Husin M.H.M., Nordin M.R., Mohamad I.S., Yong L.K., 2014, “Pt –Cu Bimetallic Nanoparticles Synthesized by Polyol Method Under Different Reduction Conditions”, Journal of Mechanical Engineering and Technology, Vol. 6 (1), pp. 77-86.
- Mazumder V., Lee Y.M., Sun S.H., 2010, “Recent Development of Active Nanoparticle Catalysts for Fuel Cell Reactions”, Advanced Functional Materials, Vol. 20, pp.1224-1231.
- Nethravathi C., Anumol E.A., Rajamathi M., Ravishankar N., 2011, “Highly Dispersed Ultrafine Pt and PtRu Nanoparticles on Graphene: Formation Mechanism and Electrocatalytic Activity”, Nanoscale, Vol. 3, pp. 569–571.
- Sarto, F., Castagna, E., De Francesco, M., Dikonimos, T. M., Giorgi, L., Lecci, S., Sansovini , M., Violante, V., 2014, “Morphology and Electrochemical Properties of Pd-Based Catalysts Deposited by Different Thin-Film Techniques”, International Journal of Hydrogen Energy, Vol. 39, pp. 14701−14711.
- Shao, M.H., Huang, T., Liu, P., Zhang, J., Sasaki, K., Vukmirovic, M.B., Adzic, R.R., 2006, “Palladium Monolayer and Palladium Alloy Electrocatalysts for Oxygen Reduction”, Langmuir, Vol. 22(25), pp. 10409−10415.
- Wang, Y., Peng, H.-C., Liu, J., Huang, C. Z., Xia, Y., 2015, “Use of Reduction Rate as a Quantitative Knob for Controlling the Twin Structure and Shape of Palladium Nanocrystals”, Nano Lett., Vol. 15, pp. 1445−1450.
- Zhang Z.Y., Xin L., Sun K., Li W.Z., 2011, “Pd–Ni Electrocatalysts for Efficient Ethanol Oxidation Reaction in Alkaline Electrolyte”, International Journal of Hydrogen Energy, Vol. 36, pp. 12686-97.
- Zhu Y., Ha S.Y., Masel R.I., 2004, “High Power Density Direct Formic Acid Fuel Cells”, Journal of Power Sources, Vol. 130(1), pp. 8-14.
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Konular | Mühendislik |
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 1 Eylül 2017 |
| Yayımlandığı Sayı | Yıl 2017 Cilt: 5 Sayı: 3 |