Preparation and Properties of Metal Organic Framework/Activated Carbon Composite Materials

Ohad Fleker, Arie Borenstein, Ronit Lavi, Laurent Benisvy, Sharon Ruthstein, Doron Aurbach

نتاج البحث: نشر في مجلةمقالةمراجعة النظراء

103 اقتباسات (Scopus)

ملخص

Metal organic frameworks (MOFs) have unique properties that make them excellent candidates for many high-tech applications. Nevertheless, their nonconducting character is an obstacle to their practical utilization in electronic and energy systems. Using the familiar HKUST-1 MOF as a model, we present a new method of imparting electrical conductivity to otherwise nonconducting MOFs by preparing MOF nanoparticles within the conducting matrix of mesoporous activated carbon (AC). This composite material was studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), gas adsorption measurements, and electron paramagnetic resonance (EPR) spectroscopy. We show that MOF nanoparticles grown within the carbon matrix maintain their crystalline characteristics and their surface area. Surprisingly, as a result of the composition process, EPR measurements revealed a copper signal that had not yet been achieved. For the first time, we could analyze the complex EPR response of HKUST-1. We demonstrate the high conductivity of the MOF composite and discuss various factors that are responsible for these results. Finally, we present an optional application for using the conductive MOF composite as a high-performance electrode for pseudocapacitors.

اللغة الأصليةالإنجليزيّة
الصفحات (من إلى)4935-4944
عدد الصفحات10
دوريةLangmuir
مستوى الصوت32
رقم الإصدار19
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - 17 مايو 2016
منشور خارجيًانعم

بصمة

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