Growth and structure evolution of novel tin oxide diskettes

Zu Rong Dai, Zheng Wei Pan, Zhong L. Wang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

354 Scopus citations

Abstract

The novel SnO diskettes have been synthesized by evaporating either SnO or SnO2 powders at elevated temperature. Disregard the source material being SnO or SnO2, the SnO diskettes are formed at a low-temperature region of 200-400 °C. Two types of diskette shapes have been identified: the solid-wheel shape with a drop center rim (type I) and the diskette with cone peak(s) and spiral steps (type II). The diskettes are determined to be tetragonal SnO structure (P4/nmm), with their flat surfaces being (001). The formation of the SnO diskettes is suggested to result from a solidification process. The structural evolution from SnO diskettes to SnO2 diskettes has been investigated by oxidizing at different temperatures. The result shows that the phase transformation from SnO to SnO2 occurs in two processes of decomposition and oxidization, and the decomposition process consists of two steps: first from SnO to Sn3O4 and then from Sn3O4 to SnO2.

Original languageEnglish
Pages (from-to)8673-8680
Number of pages8
JournalJournal of the American Chemical Society
Volume124
Issue number29
DOIs
StatePublished - 24 Jul 2002
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry

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