使用Co(NO3)2·6H2O为原料,采用简单的还原-氧化法制得了二维超薄α-Co(OH)2纳米片。使用透射电子显微镜(TEM),X射线衍射仪(XRD)对其进行形貌分析及结构表征,并研究了其电催化析氧活性。在1 M的KOH电解液中,样品表现出优异的电催化...使用Co(NO3)2·6H2O为原料,采用简单的还原-氧化法制得了二维超薄α-Co(OH)2纳米片。使用透射电子显微镜(TEM),X射线衍射仪(XRD)对其进行形貌分析及结构表征,并研究了其电催化析氧活性。在1 M的KOH电解液中,样品表现出优异的电催化析氧性能,其在电流密度为10 m A/cm2时的析氧过电位仅为290 m V,塔菲尔斜率为84 m V/dec,且经过1500次CV循环后保持了良好的稳定性。该合成方法简单廉价,产物电催化析氧活性较高,可适用于大规模工业生产。展开更多
β-Co（OH）2 and Mg（OH）2 nanoplates were synthesized via a facile template-free hydrothermal approach.The different conditions of preparation and catalytic properties of the products were studied and discussed.The p...β-Co（OH）2 and Mg（OH）2 nanoplates were synthesized via a facile template-free hydrothermal approach.The different conditions of preparation and catalytic properties of the products were studied and discussed.The products were characterized by X-ray diffraction,transmission electron microscopy,scanning electron microscopy,selected area electron diffraction（SAED）,and gas chromatograph.展开更多
文摘使用Co(NO3)2·6H2O为原料,采用简单的还原-氧化法制得了二维超薄α-Co(OH)2纳米片。使用透射电子显微镜(TEM),X射线衍射仪(XRD)对其进行形貌分析及结构表征,并研究了其电催化析氧活性。在1 M的KOH电解液中,样品表现出优异的电催化析氧性能,其在电流密度为10 m A/cm2时的析氧过电位仅为290 m V,塔菲尔斜率为84 m V/dec,且经过1500次CV循环后保持了良好的稳定性。该合成方法简单廉价,产物电催化析氧活性较高,可适用于大规模工业生产。
基金Supported by the National Natural Science Foundation of China(Nos.20331010,20671011,90406024and90406002)the 111 Project(No.B07012)the Key Laboratory of Structural Chemistry Foundation(No.060017).
文摘β-Co（OH）2 and Mg（OH）2 nanoplates were synthesized via a facile template-free hydrothermal approach.The different conditions of preparation and catalytic properties of the products were studied and discussed.The products were characterized by X-ray diffraction,transmission electron microscopy,scanning electron microscopy,selected area electron diffraction（SAED）,and gas chromatograph.
