Enerji Uygulamasında Co katkılı MOF-5/Poliimit Karışık Matriksli Membranlar Kullanarak Hidrojen Ayrımı

Öz

Evrende bol miktarda bulunan hidrojen, su tarafından üretilebilir, kolayca depolanabilir, termal, mekanik ve elektrik enerjisine dönüşebilir, bu özelliklerinden dolayı geleceğin enerji taşıyıcısı olarak düşünülebilir. Membran metodu kullanılarak hidrojen ayırma, diğer ayırma yöntemlerine göre daha az enerji yoğunluğu ve çevre dostu olması gibi olumlu yönlere sahiptir. Gaz ayırma membranlarının performansının arttırılması ve membran özelliklerinin daha iyi hale gelmesi için karışık matris membranlar (MMM'ler) geliştirilmiştir. Karışık matriksli membranlarda dolgu maddesi olarak kullanılabilen, yüksek yüzey alanı ve gözenek hacmine sahip MOF'lar, H₂ gazı ayırma özelliklerini arttırmaktadır. Bu çalışmada, MOF-5 ve Co katkılı MOF-5 partikülleri sentezlenmiş, karakterize edilmiş ve dolgu maddesinin H₂ gaz geçirgenliği üzerindeki etkisini araştırmak için poliimid içine katılmıştır. Farklı yükleme oranlarına sahip katkılı MOF-5/PI MMM'ler (ağırlıkça % 5, % 10 ve % 15) üretilmiştir ve karakterizasyonları farklı analiz teknikleriyle gerçekleştirilmiştir. Gaz analiz sonuçları, MOF-5 ve Co katkılı MOF-5 dahil olmak üzere karışık matriksli membranda H₂ gazının geçirgenliğinin, oda sıcaklığında ve 500 kPa'lık basınç altında farklı yükleme oranlarında (ağırlıkça% 5,% 10,% 15) arttığını göstermiştir. Ayrıca, metal katkılı MOF/PI’in, saf PI ve MOF-5/PI ile karşılaştırıldığında en yüksek gaz geçirgenlik özelliklerine sahip olduğu görülmüştür.

Anahtar Kelimeler

• Hidrojen Enerjisi,Karışık Matriksli Membran

Hydrogen Separation using Co-doped MOF-5/Polyimide Mixed Matrix Membrane for Energy Application

Abstract

Hydrogen is the most abundant element in the universe, can be produced by water, stored easily, conversed into thermal, mechanical and electrical energy so it can be considered as the energy carrier of the future due to these characteristics . Hydrogen separation using membrane method has the advantage over other separation methods in that it is less energy intensive and environmental friendly. In order to membrane properties become better and increase the performance of gas separation membranes, mixed matrix membranes (MMMs) have been developed. MOFs as a new fillers in MMM with high surface area and pore volume enhance the H₂ gas separation properties. In this study, MOF-5 and Co-doped MOF-5 particles were synthesized, characterized and incorporated into polyimide to investigate the effect of filler on the H₂ gas permeation. Co-doped MOF-5/PI MMMs with different loading rate (5wt.%, 10wt.%, 15wt.%) were fabricated. The characterization was performed by different analysis techniques. The gas analyses results showed that permeability of H₂ gas in mixed matrix membrane including MOF-5 and Co-doped MOF-5 particules, enhanced with increasing the loading rate (5wt.%, 10wt.%, 15wt.%) at room temperature and pressure of 500 kPa. Furthermore, metal doped  MOFs/PI is the highest gas permeation properties compared to pure PI and MOF-5/PI.

Keywords

• Hydrogen Energy,Metal Organic Framework

Kaynakça

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