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Journals / Hacettepe Journal of Biology and Chemistry / 2021 / Cilt: 49 - Sayı: 1

Electrochemical Synthesis of Cauliflower-Like PtPd@PVF Nanocatalyst forElectrooxidation of Methanol

Methanol Elektroyükseltgenmesi İçin Karnabahar-Benzeri PtPd@PVF Nanokatalizörünün Elektrokimyasal Sentezi

Mutlu SÖNMEZ ÇELEBİ
Kübra ÖZTÜRK
Mehmet DUMANGÖZ
Pages
79–91
Publication Date
2022-10-17
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The PtPd@PVF catalyst showed superior catalytic activity towards electrooxidation of methanol compared to the monometallic Pt/PVF catalyst.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, a bimetallic catalyst consisting of Pt and Pd nanoparticles supported on poly(vinylferrocene), i.e., PtPd@PVF was electrochemically prepared on pencil graphite electrode to improve the catalytic properties of previously developed Pt@PVF catalyst.
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Key Findings & Data:K2PtCl4 and K2PdCl4 were used as the metal precursors in order to disperse the Pt and Pd onto the conducting polymer support by cyclic voltammetry technique.
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Conclusion & Impact:The PtPd@PVF catalyst showed superior catalytic activity towards electrooxidation of methanol compared to the monometallic Pt/PVF catalyst.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, a bimetallic catalyst consisting of Pt and Pd nanoparticles supported on poly(vinylferrocene), i.e., PtPd@PVF was electrochemically prepared on pencil graphite electrode to improve the catalytic properties of previously developed Pt@PVF catalyst. K2PtCl4 and K2PdCl4 were used as the metal precursors in order to disperse the Pt and Pd onto the conducting polymer support by cyclic voltammetry technique. Electrochemical and chemical reduction methods were compared for the reduction of Pt and Pd complexes. The prepared catalyst system was electrochemically characterized by cyclic voltammetry. Physical characterization of the catalyst was performed by recording scanning electron microscopy images and energy dispersive X-ray spectrum. The PtPd@PVF catalyst showed superior catalytic activity towards electrooxidation of methanol compared to the monometallic Pt/PVF catalyst.

Özet

Bu çalışmada daha önce geliştirilmiş olan Pt@PVF katalizörünün katalitik özelliklerinin geliştirilmesi için kalem grafitelektrot üzerinde poli(vinilferrosen)-destekli Pt ve Pd bimetalik katalizörü (PtPd@PVF) elektrokimyasal olarakhazırlanmıştır. Pt ve Pd kaynağı olarak K2PtCl4 ve K2PdCl4 kullanılmış ve metallerin iletken polimer yüzeyine disperse edilmesiiçin dönüşümlü voltametri tekniği kullanılmıştır. Pt ve Pd komplekslerinin indirgenmesi için elektrokimyasal ve kimyasalindirgeme yöntemleri karşılaştırılmıştır. Hazırlanan katalizör sisteminin elektrokimyasal karakterizasyonu için dönüşümlüvoltametri kullanılmış olup fiziksel karakterizasyon içinse taramalı elektron mikroskobu görüntüleri ve enerji dağılımlıX-ışınları spektrumu kullanılmıştır. Monometalik Pt@PVF katalizörü ile karşılaştırıldığında, PtPd@PVF katalizörününmetanolün elektroyükseltgenmesi için daha yüksek katalitik aktivite gösterdiği gözlenmiştir.

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Cite This Article

ÇELEBİ, M. S., ÖZTÜRK, K., DUMANGÖZ, M. (2022). Electrochemical Synthesis of Cauliflower-Like PtPd@PVF Nanocatalyst forElectrooxidation of Methanol. Hacettepe Journal of Biology and Chemistry, Cilt: 49 - Sayı: 1, 79–91. https://ajindex.com/articles/528930

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