A Highly Efficient and Stable Copper BTC Metal Organic Framework Derived Electrocatalyst for Oxidation of Methanol in DMFC Application

• Published in: Catalysis letters 2019-12, Vol.149 (12), p.3312-3327
• Main Authors: Noor, Tayyaba, Ammad, Muhammad, Zaman, Neelam, Iqbal, Naseem, Yaqoob, Lubna, Nasir, Habib
• Format: Article
• Language: English
• Subjects: Catalysis; Catalysts; Catalytic activity; Chemistry; Chemistry and Materials Science; Copper; Crystal structure; Crystals; Diffraction; Electrochemical impedance spectroscopy; Functional groups; Graphene; Graphite; Hydrothermal crystal growth; Industrial Chemistry/Chemical Engineering; Metal-organic frameworks; Methanol; Methylene blue; Organometallic Chemistry; Oxidation; Oxidation-reduction reaction; Physical Chemistry; Povidone; Scanning electron microscopy; Spectrum analysis; Structure; X-ray diffraction; X-rays
• ISSN: 1011-372X; 1572-879X
• DOI: 10.1007/s10562-019-02904-6

In present work the development of copper benzenetricarboxylic acid metal organic framework (Cu-BTC MOF) based electrocatalyst and the effect of graphene oxide on catalytic activity of metal organic framework were studied for methanol oxidation reaction. Cu-MOF was prepared by a facile hydrothermal method and graphene oxide flakes were synthesized via improved Hummer’s method. Surface morphological studies of catalyst were analyzed through scanning electron microscopy technique, which revealed cubic structure of crystals, while the crystallinity and functional groups present were characterized through X-ray Diffraction and FTIR spectroscopy respectively. Electrochemical studies were conducted by using cyclic voltammetry, electrochemical impedance spectroscopy, and chronoamperometry techniques. Among all series of catalyst, 5 wt% GO/Cu-MOF exhibit highest current density of 120 mA/cm 2 at a scan rate value of 50 mV/s at a voltage of 0.9 V. Graphic Abstract