Abstract Spray pyrolysis chemical vapor deposition was used to synthetize carbon nanotubes and nitrogen-doped carbon nanotubes directly on metallic foam substrates. Cathodes containing pristine and nitrogen-doped nanotubes with mass loads of 4.2 mg cm−2 were investigated for lithium-air batteries. Pristine nanotubes presented a maximum specific discharge capacity of 3320 mAh g − 1 in air, while nitrogen-doped nanotubes exhibited a maximum specific discharge capacity of 3934 mAh g − 1. These results demonstrate that is possible to deposit high amounts of carbon nanomaterials on metallic substrates and use them directly as electrode materials with high electrocatalytic activity for the cathode reaction for developing advanced energy storage devices.

中文翻译：

---

直接在金属泡沫上合成氮掺杂碳纳米管作为锂空气电池的高质量负载正极材料

摘要 采用喷雾热解化学气相沉积法直接在金属泡沫基材上合成碳纳米管和氮掺杂碳纳米管。研究了包含质量负载为 4.2 mg cm-2 的原始和氮掺杂纳米管的阴极用于锂空气电池。原始纳米管在空气中的最大比放电容量为 3320 mAh g - 1，而掺氮纳米管的最大比放电容量为 3934 mAh g - 1。这些结果表明，可以在金属表面沉积大量碳纳米材料。并将其直接用作具有高电催化活性的电极材料，用于阴极反应，以开发先进的储能设备。