CNT Destekli Pd, Sn, Ir Tekmetalli Katalizörlerinin Metanol, Etanol, Etilen Glikol Elektrooksitlenme Aktivitesinin Araştırılması

Yıl 2019, Cilt: 24 Sayı: 2, 115 - 124, 03.09.2019

Ali Cavak Aykut Çağlar Adnan Aldemir , Hilal Demir Kıvrak

Öz

Son
zamanlarda nüfusun artması ve beraberinde sanayinin gelişmesinden dolayı enerji
kaynaklarında hızlı bir şekilde azalma baş göstermiştir. Enerji kaynaklarının
azalması bilim insanlarını yeni enerji kaynakları arayışı içine
yönlendirmiştir. Yakıt pilleri yaygın bir şekilde enerji teknolojileri ile
karşılaştırıldığında birçok avantaja sahiptir. Yakıt pillerinin verimi diğer
konvansiyonel enerji sistemlerinden yüksektir. Yapılan bu çalışmada CNT
destekli saf Pd, Sn ve Ir katalizörleri NaBH₄ indirgeme yöntemi ile
hazırlanmıştır. Bu katalizörlerin ICP-MS yöntemi ile karakterizasyonu
yapılmıştır. Pd, Sn, Ir katalizörlerinin etanol, metanol, etilen glikol elektrooksitlenmesi
döngüsel voltametre (CV), kronoamperometre (CA), elektrokimyasal empedans
spektrokopisi (EIS) ölçümleri yapılmıştır.

Anahtar Kelimeler

Elektrooksidasyon 1, NaBH4 indirgeme yöntemi 2, Pd, Sn ve Ir katalizörleri 3

Investigation of Methanol, Ethanol, Ethylene Glycol Electrooxidation Activity of CNT Supported Pd, Sn, Ir Catalysts

Öz

Recently, the energy need has been increased due to the increase in population and the development of industry. In order to meet the energy needs of the world, scientists have led the search for new sources of energy. Fuel cells are clean, efficient and promising sources of energy for the future. The efficiency of fuel cells is higher compared to other conventional energy systems. In this study, multi-walled carbon nanotube (CNT) supported Pd, Sn, and Ir catalysts were prepared by NaBH4 reduction method. These catalysts were characterized by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) method. Pd/CNT, Sn/CNT, and Ir/CNT catalysts were measured via cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS) for ethanol (C2H5OH), methanol (CH3OH), and ethylene glycol (C2H6O2) electrooxidation.

Anahtar Kelimeler

Electrooxidation, NaBH4 reduction method, Pd, Sn and Ir catalysts, CNT

Kaynakça

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