Undoped and nitrogen-doped carbon foams (CF) were synthesized by CVD via pyrolysis of hexane or acetonitrile over an Ni template. Undoped CF was also post-doped with nitrogen by hydrothermal treatment with ammonia solution. All samples were analyzed by scanning and transmission electronic microscopy, Raman spectroscopy and XPS. CVD-doped CF showed higher defectiveness than the undoped CF because of the deformation of carbon layers, while post-doped CF predominantly contained nitrogen species on its surface. These differences in the structure and composition of the foams strongly affect the electrochemical characteristics of lithium-ion battery anodes produced from these materials.

中文翻译：

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异取代对作为锂离子电池电极材料的泡沫碳特性的影响

未掺杂和氮掺杂的碳泡沫 (CF) 通过 CVD 通过在 Ni 模板上热解己烷或乙腈来合成。未掺杂的CF也通过氨溶液水热处理后掺杂氮。通过扫描和透射电子显微镜、拉曼光谱和XPS分析所有样品。由于碳层的变形，CVD掺杂的CF比未掺杂的CF表现出更高的缺陷，而后掺杂的CF在其表面上主要含有氮物质。泡沫结构和组成的这些差异强烈影响由这些材料生产的锂离子电池阳极的电化学特性。