Azot-Katkılı 3 Boyutlu Grafen Mimari Üzerinde Desteklenen Paladyum Nanopartiküllerin Doğrudan Metanol Yakıt Hücrelerinde Elektrokatalizör Olarak Kullanılabilirliğinin İncelenmesi

Yıl 2021, , 870 - 876, 17.09.2021

Onur Karaman

https://doi.org/10.17798/bitlisfen.950684

Öz

Yüksek elektroaktif özelliğe sahip elektrokatalizörlerin tasarımı, yüksek güç yoğunluğuna sahip taşınabilir yakıt hücresi sistemlerinin geliştirilmesinde kritik bir nokta olarak kabul edilmektedir. Bu çalışmada, doğrudan metanol yakıt hücresinde elektrokatalizör olarak kullanılabilecek azot-katkılı 3-boyutlu grafen (N-3DG) mimarisi ile desteklenen Pd nanoparçacıklarının sentezi için kolay ve düşük maliyetli bir üretim yöntemi önerilmiştir. Güçlü sinerjik etkilerin yanı sıra benzersiz yapısal özelliklere sahip olan Pd/N-3DG hibrit elektrokatalizörü, metanol elektrooksidasyonuna karşı, ticari Pd elektrokatalizöründen (Pd/Vulcan XC-72R) daha yüksek anodik tepe akım yoğunluk değerleri ve daha yüksek katalitik kararlılık gibi üstün elektrokatalitik performans sergilemiştir. Bu çalışma, yakıt pili teknolojisinde ticari Pd elektrokatalizörlerine alternatif olarak kullanılabilecek yüksek performanslı, düşük maliyetli elektrokatalizörlerin üretilmesi için yeni bir yaklaşımın yolunu açmaktadır.

Anahtar Kelimeler

Azot Katkılı Grafen, 3 Boyutlu Grafen, Elektrokatalizör, Doğrudan Metanol Yakıt Hücresi, Metanol Oksidasyonu, Paladyum Nanoparçacıkları

Kaynakça

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