Metal Katkılı MOF-5 İçeren Karışık Matriksli Membranlar İle Hidrojen Geçirgenliğinin İyileştirilmesi

Year 2018, Volume: 7 Issue: 2, 166 - 173, 30.12.2018

Hülya Aykaç Özen , Bahtiyar Öztürk

https://doi.org/10.17100/nevbiltek.434687

Abstract

Hidrojen, yüksek enerji yoğunluğu ve çevreye
zarar vermeyen özellikleri ile geleceğin enerji taşıyıcısı olarak
görülmektedir. Doğada saf halde bulunmayan hidrojen, gaz karışımından çeşitli
tekniklerle ayrılabilmektedir.  Bu ayırma
prosesleri içerisinde yer alan membran teknolojisi, enerji verimliliği ve
mekanik dayanıklılığı sayesinde son yıllarda dikkati üzerine çekmiştir. Membran
teknolojileri içinde yer alan ve membran içerisine dolgu maddesi ilavesiyle
oluşturulan karışık matriksli membranlar (MMM) ile gaz ayırma özelliklerinin
iyileştirildiği görülmüştür. Karışık matriksli membranlarda dolgu maddesi
olarak kullanılan MOF yapıları da yüksek yüzey alanları ve gözenek
hacimlerinden dolayı tercih edilmekte ve gaz geçirgenliğine olumlu etki
yapmaktadır. Bu çalışmada, iki farklı metal kullanarak NiCoMOF-5 yapısı
sentezlenmiştir. Karışık matriksli membran hazırlamak üzere poliimit membrana
NiCoMOF-5 ilave edilmiştir. Oluşturulan yapılar çeşitli karakterizasyon
işlemlerine tabi tutulmuştur. Sonuçlar, karışık matriksli membranın başarılı
bir şekilde sentezlendiğini ve MOF ilave edilen poliimit membranın saf
poliimide göre gaz geçirgenlik performansını arttırdığını göstermiştir

Keywords

Hidrojen, Metal Organik Kafes, Karışık Matriksli Membran

Improvement of Hydrogen Permeability with Mixed Matrix Membranes Containing Metal Doped MOF-5

Abstract

Hydrogen is seen as the energy carrier of the
future with its high energy density and envrironmental friendly properties. Since hydrogen is not pure in nature, it can be
separated from the gas mixture by various techniques. Membrane technology
involved in hydrogen separation processes has attracted attention in recent
years thanks to its energy efficiency and mechanical strength. It has been
found that the mixed matrix membranes formed by the addition of the filler
material inside the membrane technology improve the gas separation properties.
MOF structures used as a filler material are also preferred due to their high
surface area and pore volume and have a positive effect on gas permeability. In
this work, NiCoMOF-5 structure was synthesized using two different metals.
Then, NiCoMOF-5 was added into polyimide membrane to prepare a mixed matrix
membrane. The obtained MOF and MMM structures were evaluated various
characterization procedures. The results show that the mixed matrix membrane is
successfully synthesized and that the MOF added polyimide membrane improves the
gas permeability performance relative to the pure polyimide.

Keywords

Hydrogen, Metal Organic Framework, Mixed Matrix Membrane

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