Adding Tungsten to Synthesize Multi-metal Catalysts and Growing High-quality Carbon Nanotube

Wanle Hao

doi:10.54691/ra2jhp18

Authors

Wanle Hao

DOI:

https://doi.org/10.54691/ra2jhp18

Keywords:

New Energy Materials, SWCNTs, Catalysts, CVD.

Abstract

Recently, the need for sustainable development of a large population and the uneven distribution of resources have compelled people to make new breakthroughs in the energy revolution. The field of energy technology has been rapidly advancing, and researchers are increasingly focusing on energy materials. Single-walled carbon nanotubes (SWCNTs) play a vital role in this area. However, the initial challenge of producing SWCNTs in large batches hampers their widespread application. This study successfully synthesized a catalyst consisting of Fe-Co-W using an impregnation-calcination technique and achieved high-yield production of SWCNTs. The results indicate that the addition of W enables the formation of stable FeWO₄ and CoWO₄ phases from Fe and Co, significantly enhancing the system's stability. Subsequent growth of SWCNTs demonstrates that the catalyst performs exceptionally well, achieving a yield of 241% at a temperature of 900°C. This research contributes to the industrial-scale production of single-walled carbon nanotubes and the advancement of new energy materials.

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