To overcome the poor electronic conductivity and slow ion transport of NiCo₂O₄, ultrathin nanosheet arrays with oxygen vacancies are constructed by a facile NaBH₄ reduction method using a bimetallic MOF as the precursor. Benefiting from the advantages of highly exposed surface area and short paths for charge transport of ultrathin 2D nanosheets, as well as the improved electronic conductivity arising from oxygen vacancies, the optimal 0.1-O_v-NiCo₂O₄/NF electrode shows excellent electrochemical performance, largely outperforming pristine NiCo₂O₄/NF.

中文翻译：

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源自 MOF 的氧空位工程超薄 NiCo2O4 纳米片阵列作为超级电容器的高级电极

_{为了克服 NiCo 2} O ₄电子导电性差和离子传输缓慢的问题，采用双金属 MOF 作为前体，通过简便的 NaBH ₄还原方法构建了具有氧空位的超薄纳米片阵列。得益于超薄二维纳米片的高暴露表面积和短电荷传输路径的优势，以及氧空位引起的电子电导率的提高，最佳的0.1-O v -NiCo 2 O 4 /NF电极_显示出_优异的_电化学性能, 大大优于原始 NiCo ₂ O ₄ /NF。