Journal
CRYSTAL GROWTH & DESIGN
Volume 11, Issue 9, Pages 3900-3904Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cg200459t
Keywords
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Funding
- Japan Science and Technology Agency (JST), Core Research for Evolutional Science and Technology (CREST)
- Japan Society for the Promotion of Science (JSPS)
- Grants-in-Aid for Scientific Research [11J09752] Funding Source: KAKEN
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Tin sulfide (SnS) particles were synthesized by thermal decomposition of tin acetate in a mixed solution of 1-dodecanethiol, one of coordinating solvents such as trioctylphosphine and oleylamine, and 1-octadecene as a non-coordinating solvent at 280 degrees C for 2 h. The morphology of the obtained SnS particles was determined by transmission electron microscopy. Needlelike SnS particles were obtained by using trioctylphosphine as a coordinating solvent. On the other hand, platelike SnS particles were obtained by using oleylamine. The SnS particles were formed by diffusion of sulfur derived from 1-dodecanethiol into Sn particles. In addition, the aspect ratio of needlelike SnS particles was affected by the amount of 1-dodecanethiol as a sulfur source. The all-solid-state cells using SnS particles with the different morphology as an active material were fabricated. The initial discharge capacity of the all-solid-state cell using needlelike SnS particles as an active material was ca. 1000 mAh g(-1), which was larger than that of the cell with platelike SnS particles under the current density of 0.13 mA cm(-2) at 25 degrees C.
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