基于三维石墨烯的甘油酶生物燃料电池的构建及其性能研究
发布时间：2018-10-23 10:35
【摘要】：本文采用修正的Hurnmers方法制备了氧化石墨,通过超声波剥离得到氧化石墨烯溶液,用水热法进行还原,制得三维石墨烯。结果表明,制备的三维石墨烯材料具有多孔结构,且还原后某些含氧基团消失。所构建的酶生物燃料电池以三维石墨烯(GN)为载体,以麦尔多拉蓝(MB)为导电介体,用Nafion(NF)固定甘油激酶(GK)和甘油-3-磷酸氧化酶(GPO)制备阳极催化电极,并以Pt/C作为阴极催化剂。结果显示,基于NF/GN/MB酶修饰碳纸电极的甘油酶生物燃料电池具有良好的放电性能,开路电位达到0.77 V,并在0.42 V取得最大功率密度42.05μW/cm2。论文中对该酶生物燃料电池的组装、工作条件等进行了优化,用极化曲线法和交流阻抗法对其性能进行了评价。该酶生物燃料电池将为生物柴油副产物甘油的处理,提供一种清洁可靠的能源再利用方式。
[Abstract]:Graphite oxide was prepared by modified Hurnmers method. The solution of graphene oxide was obtained by ultrasonic stripping, and the three-dimensional graphene was prepared by hydrothermal reduction. The results show that the three dimensional graphene materials have porous structure and some oxygen groups disappear after reduction. Three dimensional graphene (GN) was used as the carrier of the constructed enzyme biofuel cell, and Mel Dora blue (MB) was used as the conductive medium. The anodic catalytic electrode was prepared by immobilization of glycerol kinase (GK) and glycerol 3-phosphate oxidase (GPO) with Nafion (NF). Pt/C was used as cathode catalyst. The results show that the glycerase biofuel cell modified with NF/GN/MB enzyme has good discharge performance, with an open circuit potential of 0.77V and a maximum power density of 42.05 渭 W / cm ~ 2 at 0.42 V. In this paper, the assembly and working conditions of the enzyme biofuel cell were optimized, and its performance was evaluated by polarization curve method and AC impedance method. The enzyme biofuel cell will provide a clean and reliable way of energy reuse for the treatment of glycerol, a byproduct of biodiesel.
【作者单位】： 华南理工大学食品科学与工程学院;华南理工大学化学与化工学院;
【基金】：国家自然科学基金项目(21576101、21476087、21676106) 十三五国家重点研发计划子课题(2016YFB0101200、2016YFB0101204) 中央高校基本科研业务费
【分类号】：TM911.45
[Abstract]:Graphite oxide was prepared by modified Hurnmers method. The solution of graphene oxide was obtained by ultrasonic stripping, and the three-dimensional graphene was prepared by hydrothermal reduction. The results show that the three dimensional graphene materials have porous structure and some oxygen groups disappear after reduction. Three dimensional graphene (GN) was used as the carrier of the constructed enzyme biofuel cell, and Mel Dora blue (MB) was used as the conductive medium. The anodic catalytic electrode was prepared by immobilization of glycerol kinase (GK) and glycerol 3-phosphate oxidase (GPO) with Nafion (NF). Pt/C was used as cathode catalyst. The results show that the glycerase biofuel cell modified with NF/GN/MB enzyme has good discharge performance, with an open circuit potential of 0.77V and a maximum power density of 42.05 渭 W / cm ~ 2 at 0.42 V. In this paper, the assembly and working conditions of the enzyme biofuel cell were optimized, and its performance was evaluated by polarization curve method and AC impedance method. The enzyme biofuel cell will provide a clean and reliable way of energy reuse for the treatment of glycerol, a byproduct of biodiesel.
【作者单位】： 华南理工大学食品科学与工程学院;华南理工大学化学与化工学院;
【基金】：国家自然科学基金项目(21576101、21476087、21676106) 十三五国家重点研发计划子课题(2016YFB0101200、2016YFB0101204) 中央高校基本科研业务费
【分类号】：TM911.45
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