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题名: Hot spots growth on single nanowire controlled by electric charge
作者: Xi, SB(席少波); Liu, XH(刘雪华); He, T(何婷); Tian, L(田磊); Wang, WH(王文惠); Sun, R(孙瑞); He, WN(何伟娜); Zhang, XT(张学同); Zhang, JP(张锦平); Ni, WH(倪卫海); Zhou, XC(周小春)
通讯作者: Zhou, XC(周小春)
刊名: NANOSCALE
发表日期: 2016
DOI: 10.1039/c5nr09074a
卷: 8, 期:23
收录类别: SCI ; EI
文章类型: 期刊论文
部门归属: 先进材料研究部
英文摘要: Hot spots - a kind of highly active site, which are usually composed of some unique units, such as defects, interfaces, catalyst particles or special structures - can determine the performance of nanomaterials. In this paper, we study a model system, i.e. "hot spots" on a single Ag nanowire in the galvanic replacement reaction (GRR), by dark-field microscopy. The research reveals that electric charge can be released by the formation reaction of AgCl, and consequently the electrochemical potential on Ag nanowire drops. The electric charge could induce the reduction of Ag+ to form the "hot spots" on the nanowire during the GRR. The appearance probability of "hot spots" is almost even along the Ag nanowire, while it is slightly lower near the two ends. The spatial distance between adjacent "hot spots" is also controlled by the charge, and obeys a model based on Boltzmann distribution. In addition, the distance distribution here has an advantage in electron transfer and energy saving. Therefore, it's necessary to consider the functions of electric charge during the synthesis or application of nanomaterials.
关键词[WOS]: ONE-STEP APPROACH ; METAL NANOSTRUCTURES ; REPLACEMENT REACTION ; OPTICAL-PROPERTIES ; H-2 GENERATION ; CDS NANORODS ; SILVER ; ELECTROCATALYSTS ; HETEROSTRUCTURES ; PHOTOCATALYSIS
语种: 英语
JCR小类分区: 一区
WOS记录号: WOS:000378510700032
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/4629
Appears in Collections:先进材料研究部_周小春团队_期刊论文

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Recommended Citation:
Xi, SB,Liu, XH,He, T,et al. Hot spots growth on single nanowire controlled by electric charge[J]. NANOSCALE,2016,8(23).
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