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MOF-derived ZnCo2O4 porous micro-rice with enhanced electro-catalytic activity for the oxygen evolution reaction and glucose oxidation

机译:MOF衍生的ZnCo2O4多孔微米,具有增强的电催化活性,用于氧气进化反应和葡萄糖氧化

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A porous ZnCo _(2) O _(4) micro-rice like microstructure was synthesized via calcination of a Zn–Co MOF precursor at an appropriate temperature. The as-prepared ZnCo _(2) O _(4) sample presented good electrocatalytic oxygen evolution reaction performance with a small overpotential ( η _(10) = 389 mV) and high stability in basic electrolyte. Furthermore, in basic medium, the as-synthesized ZnCo _(2) O _(4) micro-rice also showed good electrocatalytic activity for glucose oxidation. A ZnCo _(2) O _(4) micro-rice modified glass carbon electrode may be used as a potential non-enzymatic glucose sensor. The excellent electrocatalytic OER and glucose oxidation performances of ZnCo _(2) O _(4) might be attributed to the unique porous structure formed by the nanoparticles. The porous architecture of the micro-rice can provide a large number of electrocatalytically active sites and high electrochemical surface area (ECSA). The result may offer a new way to prepare low-cost and high performance oxygen evolution reaction and glucose oxidation electrocatalysts.
机译:通过在适当温度下煅烧Zn-CoMOF前体合成多孔ZnCo _(2)O _(4)微米。制备的ZnCO _(2)O _(4)样品呈现出良好的电催化氧气演化反应性能,具有小的过电(η_(10)= 389mV)和基本电解质的高稳定性。此外,在基础培养基中,AS合成的ZnCo _(2)O _(4)微米还显示出葡萄糖氧化的良好电催化活性。 ZnCO _(2)O _(4)微米改性玻璃碳电极可以用作潜在的非酶葡萄糖传感器。 ZnCo _(2)O _(4)的优异的电催化作用和葡萄糖氧化性能可能归因于纳米颗粒形成的独特多孔结构。微米的多孔结构可以提供大量的电催化源位点和高电化学表面积(ECSA)。结果可以提供一种制备低成本和高性能氧气进化反应和葡萄糖氧化电催化剂的新方法。

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