Abstract In this work, the hybrids of Ni-Co nanoheterostructure wrapped by carbon with high specific surface areas and narrow mesopores distribution were obtained by one-step heat treatment of nickelocene (NiCp2) filled ZIF-67. This is a fine example of the integration of metal heterostructure and porous carbon in one particle at the nanometer level. Electrochemical data demonstrate that this nanoporous hybrid material integrates the advantageous properties of the transition metal and carbon, exhibiting a distinguished specific capacitance (236 F g−1 at a current density of 1 A g−1) and a higher cycling stability of 94.3% after 1000 cycles, highlighting the advantages of such unique configuration accompanied by the synergistic effect of Ni-Co heterostructure.

中文翻译：

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功能化 MOF 控制形成新型 Ni-Co 纳米异质结构@碳杂化物作为超级电容器的电极

摘要 在这项工作中，通过对茂镍 (NiCp2) 填充的 ZIF-67 进行一步热处理，获得了具有高比表面积和窄介孔分布的碳包裹的 Ni-Co 纳米异质结构杂化物。这是在纳米级将金属异质结构和多孔碳集成在一个粒子中的一个很好的例子。电化学数据表明，这种纳米多孔杂化材料整合了过渡金属和碳的优势特性，表现出显着的比电容（在 1 A g-1 的电流密度下为 236 F g-1）和 94.3% 的更高循环稳定性。 1000 次循环，突出了这种独特配置的优势，并伴随着 Ni-Co 异质结构的协同效应。