High dispersion of 1-nm SnO2 particles between graphene nanosheets constructed using supercritical CO2 fluid for sodium-ion battery anodes
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- 作者：Jagabandhu PatraaAuthor Vitae ; Hung-Ching ChenaAuthor Vitae ; Cheng-Hsien YangaAuthor Vitae ; Chien-Te HsiehbAuthor Vitae ; Ching-Yuan SucAuthor Vitae ; Jeng-Kuei Changa ; c ; d ; jkchang@ncu.edu.tw" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Tin oxide ; Nanocomposites ; Supercritical fluid ; Anodes ; Sodium-ion batteries
- 刊名：Nano Energy
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：28
- 期：Complete
- 页码：124-134
- 全文大小：6502 K
文摘
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Highly-dispersed 1-nm SnO2 particles on GNSs are synthesized using SCCO2 process.
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Tuning SCCO2 temperature affects SnO2 size, distribution, and performance.
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Synchrotron ex situ XAS and XRD are used to examine electrode reaction mechanism.
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Reversible conversion reaction and sluggish Sn–Na alloying reaction are observed.
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First-cycle efficiency loss is mainly attributed to trapping of Na in SEI layer.