Abstract In this work, we synthesized monometallic catalysts based on Ni, Cu, Co, Mn, Fe, Zn, and W supported on Mesoporous Santa Barbara Amorphous-15 (SBA-15) to produce hydrogen and carbon nanomaterials through catalytic methane decomposition (CMD). Highly dispersed metal oxides supported on the SBA-15 surface promotes the formation of either carbon nanotubes or carbon nanofibers after CMD. Furthermore, the catalytic activity results showed the Ni/SBA-15 catalyst performed the highest methane conversion (40%) as well as it displayed superior stability during 13 h at 500 °C (23% of conversion). The resulting nanoparticle oxides, except for the Zn sample that presented a high dispersion throughout the SBA-15.

中文翻译：

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使用过渡金属催化剂通过甲烷分解生产氢和碳纳米材料

摘要 在这项工作中，我们合成了基于 Ni、Cu、Co、Mn、Fe、Zn 和 W 的单金属催化剂，负载在介孔 Santa Barbara Amorphous-15 (SBA-15) 上，通过催化甲烷分解 (CMD) 制备氢和碳纳米材料。 ）。SBA-15 表面负载的高度分散的金属氧化物促进了 CMD 后碳纳米管或碳​​纳米纤维的形成。此外，催化活性结果表明，Ni/SBA-15 催化剂的甲烷转化率最高（40%），并且在 500°C 下 13 小时内表现出优异的稳定性（转化率为 23%）。所得纳米颗粒氧化物，除了在整个 SBA-15 中呈现高分散的 Zn 样品。