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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >2D Fe-doped NiO nanosheets with grain boundary defects for the advanced oxygen evolution reaction
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2D Fe-doped NiO nanosheets with grain boundary defects for the advanced oxygen evolution reaction

机译：2D Fe-Doped NIO纳米蛋白酶具有晶界缺陷，用于高级氧气进化反应

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摘要

Two-dimensional (2D) nanomaterials with grain boundary defects are attractive to researchers in many fields, such as energy conversion and storage, sensing, catalysis and biological medicine. In this work, a nanostructure of 2D Fe-doped NiO nanosheets (NiFexO) with grain boundary defects was designed and applied in the electrocatalytic oxygen evolution reaction. This nanomaterial was synthesized through a solvothermal strategy followed by a thermally driven conversion process. In general, NiFexO electrocatalysts were fabricated with gradual morphological variation depending on the atomic ratio of Ni : Fe. It is surprising that the Fe content determines the electrocatalytic performance and the overpotential of water oxidation exhibits an inverted volcanic pattern. As expected, the as-prepared 2D NiFe0.1O nanosheets with grain boundary defects exhibit enhanced OER activity (274 mV@10 mA cm(-2)) compared with the oxide electrocatalyst reported in 1.0 M KOH owing to the advantages of abundant active sites. This work will shed light on the design and fabrication of novel-structured nanocatalysts.
机译：具有晶界缺陷的二维（2D）纳米材料对许多领域的研究人员具有吸引力，例如能量转换和储存，传感，催化和生物医学。在这项工作中，设计并施加了具有晶界缺陷的2D Fe掺杂的NIO纳米片（NiFexo）的纳米结构，并施加在电催化氧气进化反应中。通过溶剂热策略合成该纳米材料，然后通过热驱动的转化方法合成。通常，取决于Ni：Fe的原子比，用逐渐形态变异制造了非九焦电催化剂。令人惊讶的是，Fe含量决定了电催化性能，水氧化的过电位表现出倒火山模式。如预期的那样，与氧化物电催化剂在1.0M KOH中由于丰富的活性位点的优势，相比，具有晶界缺陷的AS准备的2D NiFe0.1O纳米蛋白酶表现出增强的oer活性（274mV @ 10 mA cm（-2）） 。这项工作将阐明新型结构化纳米催化剂的设计和制作。

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