Synthesis and ethanol sensing characteristics of single crystalline SnO2 nanorods
文献类型:期刊论文
作者 | Chen, YJ ; Xue, XY ; Wang, YG ; Wang, TH |
刊名 | APPLIED PHYSICS LETTERS
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出版日期 | 2005 |
卷号 | 87期号:23 |
关键词 | GAS SENSORS TIN OXIDE SNO2 NANORODS TEMPERATURE FABRICATION NANOBELTS GROWTH |
ISSN号 | 0003-6951 |
通讯作者 | Wang, TH (reprint author), Micro Nano Technol Res Ctr, Changsha 410082, Peoples R China. |
中文摘要 | The rapid reduction of Na2PdCl4 by ethylene glycol in the presence of poly(vinyl pyrrolidone) (PVP) has recently been demonstrated as a convenient method of generating Pd cubooctahedra and twinned nanoparticles. Here we describe a new procedure where Pd triangular or hexagonal nanoplates could be selectively synthesized by manipulating the reduction kinetics of the polyol process. More specifically, the reduction rate was substantially reduced through the introduction of Fe(Ill) species and the O-2/Cl- pair, two wet etchants for Pd(0). The etching power of the O-2/Cl- pair could be further enhanced by adding an acid to lower the pH of the reaction solution. Unlike the previously reported synthesis of Ag and Au nanoplates, light was found to have no indispensable role in the formation of Pd nanoplates. Both triangular and hexagonal nanoplates of Pd exhibited surface plasmon resonance (SPR) peaks in the visible region, and their positions matched with the results of discrete dipole approximation (DDA) calculation. Thanks to their sharp corners and edges, these Pd nanoplates could serve as active substrates for surface-enhanced Raman scattering (SERS). |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2013-09-24 |
源URL | [http://ir.iphy.ac.cn/handle/311004/54345] ![]() |
专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
推荐引用方式 GB/T 7714 | Chen, YJ,Xue, XY,Wang, YG,et al. Synthesis and ethanol sensing characteristics of single crystalline SnO2 nanorods[J]. APPLIED PHYSICS LETTERS,2005,87(23). |
APA | Chen, YJ,Xue, XY,Wang, YG,&Wang, TH.(2005).Synthesis and ethanol sensing characteristics of single crystalline SnO2 nanorods.APPLIED PHYSICS LETTERS,87(23). |
MLA | Chen, YJ,et al."Synthesis and ethanol sensing characteristics of single crystalline SnO2 nanorods".APPLIED PHYSICS LETTERS 87.23(2005). |
入库方式: OAI收割
来源:物理研究所
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