Electrocatalytic study of cu/Ni MOF and its g‐C3N4 composites for methanol oxidation reaction. (20th May 2022)

• Record Type: Journal Article
• Authors: Abbasi, Muzzamil; Noor, Tayyaba; Iqbal, Naseem; Zaman, Neelam
• Is Part Of: International journal of energy research. Volume 46:Number 10(2022)
• Page Start: 13915
• Page End: 13930
• Publication Date: 2022-05-20
• Subjects: graphitic carbon nitride -- metal organic framework -- methanol oxidation reaction; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Power resources -- Research -- Periodicals; 621.042
• DOI: 10.1002/er.8109
• Languages: English
• ISSNs: 0363-907X

Abstract

Summary: Graphitic carbon nitride is of interest for its intercalation, ion exchange, and redox properties as it exhibits high catalytic activity. Besides, its high nitrogen content and facile synthesis procedure may provide a good balance between activity and durability. We report novel g‐C3 N4 based MOF as a novel electrocatalyst for methanol oxidation reaction (MOR). Two methods are involved in the catalytic synthesis, namely the hydrothermal method for the Cu/Ni MOF and its composites synthesis, and g‐C3 N4 is obtained by pyrolysis of melamine. To explore the structural and morphological properties, all the catalysts were eventually characterized using XRD, FTIR, SEM, and EDX techniques, whereas cyclic voltammetry (CV) revealed the electrochemical response for the oxidation of methanol in 3 M methanol and 1 M NaOH on modified glassy carbon electrode (GCE). The electrochemical results illustrate that as the amount of g‐C3 N4 increases current density for methanol oxidation reaction (MOR). The maximum current density is 103.42 mA/cm 2 shown by Cu/Ni MOF@5 wt% g‐C3 N4 at 0.9 V while the scan rate is 50 mV/s. Thus, graphitic carbon nitride addition in MOF composites enhanced its durability and high carbon monoxide (CO) tolerance makes active catalysts in alkaline electrolyte. Abstract : The graphitic carbon nitride addition in MOF composites ehances durability and tolerance for carbon monoxide in alkaline media. Cu/Ni MOF@5 wt% g‐C3 N4 composite demonstartes higher electrochemical activity.