FeOOH@CNT/NF的制备及电催化析氧性能研究  

Study on the preparation and the electrocatalytic oxygen evolution reaction properties of FeOOH@CNT/NF

作　　者：杨国柳 孟凡烨 齐承锋 韩银凤 YANG Guo-liu;MENG Fan-ye;QI Cheng-feng;HAN Yin-feng(College of Chemistry and Chemical Engineering,Baoji University of Arts and Sciences,Baoji 721013,Shaanxi,China)

机构地区：[1]宝鸡文理学院化学化工学院,陕西宝鸡721013

出　　处：《宝鸡文理学院学报（自然科学版）》2023年第2期71-76,共6页Journal of Baoji University of Arts and Sciences(Natural Science Edition)

基　　金：国家自然科学基金项目(52262015);宝鸡市科学技术研究发展计划项目(2018JH-05)。

摘　　要：目的以泡沫镍、包镍多壁碳纳米管、过氧化氢和七水硫酸亚铁为原料,通过120℃的水热过程,反应6 h成功制备出了FeOOH@CNT/NF析氧催化剂。方法运用单变量控制法研究了包镍多壁碳纳米管、过氧化氢和七水硫酸亚铁的用量对所制备材料的电催化析氧性能的影响,同时对产物进行了XRD、SEM、I/E、稳定性等表征。结果研究结果表明,当使用0.3000 g包镍多壁碳纳米管、0.7000 g七水硫酸亚铁和30%过氧化氢体积为40.0 mL时,在120℃温度条件下,以预处理的泡沫镍为基底,水热反应6 h可成功制备出FeOOH@CNT/NF电催化析氧材料。结论所制备析氧催化剂在电流密度为50 mA/cm^(2)时的过电位仅为254.7 mV,Tafel斜率为8.40 mV/dec,C dl值为690 mF/cm^(2),并且在12 h内工作稳定。Purposes—To prepare FeOOH@CNT/NF oxygen evolution catalyst by hydrothermal process in 6 h at 120℃with nickel foam,nickel-coated multi-walled carbon nanotubes,hydrogen peroxide and ferrous sulfate heptahydrate as raw materials.Methods—Univariate control method is used to investigate the effects of the amount of nickel-coated multi-walled carbon nanotubes,hydrogen peroxide and ferrous sulfate heptahydrate on the electrocatalytic oxygen evolution properties of the prepared materials.The products were characterized by XRD,SEM,I/E,stability and others.Result—The result showed that FeOOH@CNT/NF electrocatalytic oxygen evolution material could be successfully prepared by 6 h hydrothermal reaction at 120℃with pretreated nickel foam as the substrate,and 0.3000 g of nickel-coated multi-walled carbon nanotubes,0.7000 g of ferrous sulfate heptahydrate and 40 mL of 30%hydrogen peroxide as raw materials.Conclusion—The prepared oxygen evolution catalyst has an overpotential of only 254.7 mV at the current density of 50 mA/cm^(2),a Tafel slope of 8.40 mV/dec,a C dl value of 690 mF/cm^(2),and it is stable within 12 h.

关 键 词：FEOOH 碳纳米管 析氧反应 

分 类 号：O611.4[理学—无机化学]