Geçiş Metali Katalizörleriyle Karbon Modülasyonu
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Keywords:
Karbon, Geçiş Metalleri, Katalizör, İnorganik Karbon Bileşikleri, KarbonlamaAbstract
Karbon içeren kaynakların dönüştürülmesi için yüksek verimliliğe sahip katalizörlerin geliştirilmesi, enerji ve çevre sorunlarının başlıca çözümlerinden biridir. Dönüştürme işlemleri sırasında karbon, yalnızca reaksiyonlarda anahtar element olması bakımından değil, aynı zamanda katalizörlerin kimyasal yapısının modifikasyonuna da neden olabilmesi açısından önemli bir rol oynar. Özellikle, katalitik malzemelerin yapı-performans ilişkisinin anlaşılması, katalizör geliştirmenin temelidir. Karbon içeren kaynakların dönüştürülmesi sırasında karbonun katalizör yapıları üzerindeki modüle edici rolü artan ilgiyi çekmiştir. Bu çalışmada, Fe-, Co-, Ni- ve Mo bazlı katalizörlerin karbonla modülasyonunu sistematik olarak incelenmiştir. Geçiş metali katalizörlerinin (Fe, Co, Ni, Mo ve diğer geçiş metalleri) aktif fazları, morfolojileri, yüzey yapıları, elektronik özellikleri ve katalitik performanslarına odaklanılarak, bu katalizörlerin karbon ile modülasyonu katalizör karbürizasyonu ve karbonla ilgili yüzey reaksiyonları açısından karbonun davranışının ayarlanması araştırılmıştır. Karbon içeren kaynakların dönüşümü için katalizörlerin daha fazla tasarlanması ve geliştirilmesi ve ayrıca aktif karbon bölgeleri ve midilli büyüklüğünde iyi sarılmış metal türleri dahil olmak üzere çok sayıda diğer aktif merkezin aktivite katkısı için sistematik ve temel bilgiler sağlamaktadır.
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