NiFe_(2)O_(4)/rGO电极材料的制备及电催化HMF氧化性能研究  

Preparation of NiFe_(2)O_(4)/rGO Electrode Material and Its Electrocatalytic Performance for HMF Oxidation

作　　者：王洪雷 牛彩云[2] 朱宏跃 李晓明[1] 周丹 孙志刚 胡季帆 杨昌平 WANG Honglei;NIU Caiyun;ZHU Hongyue;LI Xiaoming;ZHOU Dan;SUN Zhigang;HU Jifan;YANG Changping(School of Chemical Engineering and Technology,Taiyuan University of Science and Technology,Taiyuan 030024,China;School of Chemistry and Chemical Engineering,North University of China,Taiyuan 030051,China;School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China)

机构地区：[1]太原科技大学化学工程与技术学院,太原030024 [2]中北大学化学化工学院,太原030051 [3]太原科技大学材料科学与工程学院,太原030024

出　　处：《材料导报》2024年第14期23-28,共6页Materials Reports

基　　金：山西省应用基础研究计划(202203021222185);太原科技大学博士科研启动基金(20222092);太原科技大学留晋博士优秀奖励基金(20232058);太原科技大学大学生创新创业项目(XJ2023058)。

摘　　要：利用五羟甲基糠醛(HMF)电合成的2,5-呋喃二甲酸(FDCA)具有与对苯二甲酸相似的结构和性质,为开发可降解性塑料、减少白色污染提供可能。利用CO_(2)激光成功合成了NiFe_(2)O_(4)/rGO电极材料,其微观形貌呈纳米颗粒镶嵌的氧化石墨烯结构。原位拉曼光谱表明,与Fe_(5)O_(12)/rGO电极材料相比,在HMF电催化氧化过程中NiFe_(2)O_(4)/rGO表面重构为NiOOH和FeOOH物种,证实了Ni的加入使材料更易发生表面重构。表面重构的NiFe_(2)O_(4)/rGO电极材料在100 mA·cm^(-2)时过电位降低至26 mV,且较制氧反应(OER)过电位降低约182 mV。表面重构后的电极材料拥有更大的比表面积,促进了反应物与电极材料的接触。反应物的转化率、目标产物的选择性及法拉第效率分别为99.8%、99.3%和87.6%。本研究为元素加入促进催化材料表面重构进而提高HMF的电催化氧化活性提供了有效途径。The 2,5-furandicarboxylic acid(FDCA)synthesized by electro synthesis of 5-hydroxymethylfurfural(HMF)has a structure and properties similar to terephthalic acid,providing the possibility for developing biodegradable plastics and reducing white pollution.The NiFe_(2)O_(4)/rGO electrode material was successfully synthesized using CO_(2)laser,and its microstructure presents a nano particle embedded graphene oxide structure.In situ Raman spectroscopy showed that compared with the Fe_(5)O_(12)/rGO electrode material,the NiFe_(2)O_(4)/rGO surface was reconstructed into NiOOH and FeOOH species during the HMF electrocatalytic oxidation process,confirming that the addition of Ni makes the material more prone to surface reconstruction.The surface reconstructed NiFe_(2)O_(4)/rGO electrode material showed a decrease in overpotential to 26 mV at 100 mA·cm-2,and a decrease of approximately 182 mV compared to the oxygen production reaction(OER)overpotential.The electrode material after surface reconstruction has a larger specific surface area,which promotes the contact between reactants and electrode material.The conversion rate of reactants,selectivity of target products,and Faraday efficiency were 99.8%,99.3%,and 87.6%,respectively.This study provides an effective approach for promoting surface reconstruction of catalytic materials through the addition of elements,thereby enhancing the electrocatalytic oxidation activity of HMF.

关 键 词：电催化 CO_(2)激光 NiFe_(2)O_(4)/rGO电极材料 表面重构 

分 类 号：O646.542[理学—物理化学]