Microscopy study of the growth process and structural features of silicon oxide nanoflowers

Yan Qiu Zhu, Wen Kuang Hsu, Mauricio Terrones Maldonado, Nicole Grobert, Wei Bing Hu, Jonathan P. Hare, Harold W. Kroto, David R.M. Walton, Humberto Terrones

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


High-quality SiOx nanoflowers have been generated by heating mixed SiC/Co powder films in a CO atmosphere. The structural features associated with different stages of the growth were monitored by SEM, TEM, EDX, and XRD analysis. A plausible mechanism for the formation of exquisite flowerlike structures is proposed in which SiC reacts with CO, the Co particles acting as a catalytic template, to yield amorphous SiOx branches. Numerous loops and branches were also observed which may arise either as a result of bifurcation or coalescence. Use of Co2O3 instead of Co as catalyst leads to abnormal flowers exhibiting secondary growth.

Original languageEnglish (US)
Pages (from-to)2709-2715
Number of pages7
JournalChemistry of Materials
Issue number10
StatePublished - Jan 1 1999

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry


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