MOF-derived Cu/nanoporous carbon composite and its application for electro-catalysis of hydrogen evolution reaction

Jahan-Bakhsh Raoof, Sayed Reza Hosseini, Reza Ojani and Sakineh Mandegarzad

Energy, 2015, vol. 90, issue P1, 1075-1081

Abstract: In this work, metal-organic framework Cu3(BTC)2 [BTC = 1,3,5-benzenetricarboxylate] (commonly known as MOF-199 or HKUST-1), is used as porous template for preparation of a Cu/nanoporous carbon composite. The MOF-derived Cu/nanoporous carbon composite (Cu/NPC composite) is synthesized by direct carbonization of the MOF-199 without any carbon precursor additive. The physical characterization of the solid catalyst is achieved by using a variety of different techniques, including XRD (X-ray powder diffraction), scanning electron microscopy, thermo-gravimetric analysis, and nitrogen physisorption measurements. The electrochemical results have shown that the Cu/NPC composite modified glassy carbon electrode (Cu/NPC/GCE) as a non-platinum electrocatalyst exhibited favorable catalytic activity for hydrogen evolution reaction, in spite of high resistance to faradic process. This behavior can be attributed to existence of Cu metal confirmed by XRD and/or high effective pore surface area (1025 m2 g−1) in the Cu/NPC composite. The electron transfer coefficient and exchange current density for the Cu/NPC/GCE is calculated by Tafel plot at about 0.34 and 1.2 × 10−3 mAcm−2, respectively.

Keywords: MOF-199; MOF-derived Cu/nanoporous carbon composite; Direct carbonization; Non-platinum catalyst; Hydrogen evolution reaction (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:90:y:2015:i:p1:p:1075-1081

DOI: 10.1016/j.energy.2015.08.013

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