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Supersaturation-controlled synthesis of diverse In2O3 morphologies and their shape-dependent sensing performance
Yang, Wei1,2; Wan, Peng3; Meng, Hu1; Hu, Jiming2; Feng, Liang1
刊名CRYSTENGCOMM
2015
DOI10.1039/c4ce02535k
17期:15页:2989-2995
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary ; Crystallography
研究领域[WOS]Chemistry ; Crystallography
关键词[WOS]INDIUM OXIDE NANOWIRES ; GAS SENSORS ; NANOPARTICLES ; NANOSTRUCTURES ; NANOCRYSTALS ; MECHANISM ; EVOLUTION ; DIAMETERS
英文摘要The precisely controlled synthesis of a specific morphology is proved to be highly effective for enhancing sensing performance of functional micro-and nano-materials. Thus, a comprehensive understanding of the effect of synthesis conditions on morphology evolution is of great importance. In this paper, by using In2O3 as an example, we demonstrate the great effect of supersaturation on the morphology evolution during the growth process. Under vapour-phase synthesis, by varying positions of product collection, the amount of the starting materials, and reaction temperatures, a continuous two-step route consisting of ammonolysis and re-oxidation processes was developed for the morphology evolution of several kinds of In2O3, including octahedron strings, nanowires, crystal chains, lollipop-like structures, and particles. The controlled supersaturation of the In2O3 vapour was eventually proved to be a decisive factor for the formation of various In2O3 morphologies. Furthermore, we evaluated the gas-sensing properties of the three kinds of one-pot synthesized In2O3, indicating a shape-dependent relationship with sensing performance. The present work not only offers a unique strategy to control supersaturation in vapour-phase synthesis, but also provides an opportunity to deeply understand the morphology-dependent sensing performance.
语种英语
WOS记录号WOS:000352142800010
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146146
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
2.Wuhan Univ, Coll Chem & Mol Sci, Key Lab Analyt Chem Biol & Med, Wuhan 430072, Peoples R China
3.Dalian Univ Technol, Fac Chem Environm & Biol Sci & Technol, Dalian 116024, Peoples R China
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GB/T 7714
Yang, Wei,Wan, Peng,Meng, Hu,et al. Supersaturation-controlled synthesis of diverse In2O3 morphologies and their shape-dependent sensing performance[J]. CRYSTENGCOMM,2015,17(15):2989-2995.
APA Yang, Wei,Wan, Peng,Meng, Hu,Hu, Jiming,&Feng, Liang.(2015).Supersaturation-controlled synthesis of diverse In2O3 morphologies and their shape-dependent sensing performance.CRYSTENGCOMM,17(15),2989-2995.
MLA Yang, Wei,et al."Supersaturation-controlled synthesis of diverse In2O3 morphologies and their shape-dependent sensing performance".CRYSTENGCOMM 17.15(2015):2989-2995.
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