Hanif Saadia, Iqbal Naseem, Noor Tayyaba, Zaman Neelam, Vignarooban K
USPCAS-E, National University of Sciences and Technology, Islamabad, 44000, Pakistan.
SCME, National University of Sciences and Technology, Islamabad, 44000, Pakistan.
Sci Rep. 2021 Aug 25;11(1):17192. doi: 10.1038/s41598-021-96794-7.
In this work, the methanol oxidation reaction is investigated on Ni based metal organic frameworks (MOF) and its composites with biomass derived activated carbon. NiO-MOF and composites with activated carbon were synthesized using hydrothermal method. SEM, EDX, and XRD, FTIR, TGA techniques were used for characterization of composites. The electrochemical activity of catalysts for oxidation of methanol was tested using cyclic voltammetry (CV) in 1 M KOH and 3 M CHOH on glassy carbon electrode in three electrode setup. The electrochemical performance shows the effect of activated carbon concentration on methanol oxidation. The electro-oxidation catalyzed by NiO-MOF with activated carbon (40 mg) composite exhibits a peak current density of 182.72 mA/cm at 0.89 V potential with a scan rate of 50 mV/s making it a potential catalyst for electrocatalysis of methanol.
在这项工作中，研究了镍基金属有机框架（MOF）及其与生物质衍生活性炭的复合材料上的甲醇氧化反应。采用水热法合成了NiO-MOF及其与活性炭的复合材料。利用扫描电子显微镜（SEM）、能谱仪（EDX）、X射线衍射仪（XRD）、傅里叶变换红外光谱仪（FTIR）和热重分析仪（TGA）对复合材料进行了表征。在三电极体系的玻碳电极上，采用循环伏安法（CV）在1 M KOH和3 M CH₃OH中测试了催化剂对甲醇氧化的电化学活性。电化学性能表明了活性炭浓度对甲醇氧化的影响。由含40 mg活性炭的NiO-MOF复合材料催化的电氧化在0.89 V电位、50 mV/s扫描速率下表现出182.72 mA/cm²的峰值电流密度，使其成为甲醇电催化的潜在催化剂。
