The preparation of uniform and well-dispersed catalysts is crucially important for the controlled growth of single-walled carbon nanotubes (SWCNTs) on substrates. We used graphene oxide (GO) as a support to prepare well-dispersed CoWO4 nanoparticles with a narrow diameter distribution. When using GO-supported CoWO4 as the catalyst precursor and performing the SWCNT growth under the optimized chemical vapor deposition conditions, we realized the diameter-controlled growth of SWCNTs with the mean size of 1.74 ± 0.18 nm. CoWO4 is a superior catalyst precursor that can be used to obtain catalyst nanoparticles with a well-controlled size. GO shows to be a feasible substrate, presenting oxygen-containing groups which act as both the binding sites to facilitate the formation of uniform nanoparticles and hydrophilic groups to ensure a good dispersibility in aqueous solution. This strategy may find wide applications in the preparation of various functional nanomaterials. This journal is
CITATION STYLE
Zhao, X., Liu, X., Yang, F., Liu, Q., Zhang, Z., & Li, Y. (2021). Graphene oxide-supported cobalt tungstate as catalyst precursor for selective growth of single-walled carbon nanotubes. Inorganic Chemistry Frontiers, 8(4), 940–946. https://doi.org/10.1039/d0qi01114b
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