Electrocatalytic Oxidation of Ethanol and Bioethanol Using Poly(thionine) Supported Platinum Nano/Micro Particles

Yıl 2024, , 141 - 153, 30.06.2024

Nuriye Şahin Mutlu Sönmez Çelebi

https://doi.org/10.54370/ordubtd.1430775

Öz

Pt micro/nano particles were supported on poly(thionine) conducting polymer and used as catalyst for electrochemical oxidation of ethanol. Thionine was polymerized from its aqueous solution by cyclic voltammetry. Incorporation of Pt complex was carried out electrochemically by polycyclic voltammetry using K2PtCl4 as the precursor prior to reduction. Evaluation of optimum experimental parameters was done according to the obtained oxidation currents recorded in ethanol solutions with cyclic voltammetry. For the physical characterization of the Pt/PTH catalyst prepared under optimum conditions, SEM images were recorded. When the cyclic voltammetric behavior of bioethanol with the Pt/PTH catalyst prepared under optimum conditions was examined and compared with synthetic ethanol, it was revealed that the developed catalyst showed high catalytic activity for bioethanol oxidation.

Anahtar Kelimeler

poly(thionine), platinum, ethanol, bioethanol, electrocatalysis

Etik Beyan

There are no ethical issues regarding the publication of this article.

Poli(tiyonin) Destekli Platin Nano/Mikro Partikülleri Kullanılarak Etanolün ve Biyoetanolün Elektrokatalitik Yükseltgenmesi

Öz

Pt mikro/nano parçacıkları poli(tiyonin) iletken polimer destek malzemesi üzerinde sentezlenmiş ve etanolün elektrokimyasal yükseltgenmesi için kullanılmıştır. Tiyonin, sulu çözeltiden dönüşümlü voltametri ile polimerleştirildi. Pt kompleksinin polimer film yapısına immobilize edilmesi, sulu K2PtCl4 çözeltisinden dönüşümlü voltametrik taramalar ve ardından kimyasal veya elektrokimyasal indirgeme yoluyla gerçekleştirildi. Deneysel parametreler, etanol çözeltisinde kaydedilen pik akımı değerlerine göre optimize edildi. Optimum şartlarda hazırlanan Pt/PTH katalizörünün fiziksel karakterizasyonu için SEM görüntüleri kaydedildi. Optimum şartlarda hazırlanan Pt/PTH katalizörü ile biyoetanolün dönüşümlü voltametrik davranışı incelenip sentetik etanol ile karşılaştırıldığında geliştirilen katalizörün biyoetanol yükseltgenmesi için yüksek katalitik aktivite gösterdiği ortaya çıktı.

Anahtar Kelimeler

poli(tiyonin), platin, etanol, biyoetanol, elektrokataliz

Kaynakça

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