ICCAS OpenIR
Probing the structure of a water/nitrobenzene interface by scanning ion conductance microscopy
Ji, Tianrong; Liang, Zhongwei; Zhu, Xinyu; Wang, Lingyu; Liu, Shujuan; Shao, Yuanhua
2011
Source PublicationCHEMICAL SCIENCE
ISSN2041-6520
Volume2Issue:8Pages:1523-1529
AbstractA new experimental approach to probe the structure of a water/nitrobenzene (W/NB) interface by scanning ion conductance microscopy (SICM) is presented. A nanopipette filled with aqueous solution serves as a SICM tip. The tip current is produced by the transfer of chloride (Cl-) and tetraphenylarsonium (TPAs+) ions between the aqueous solution inside the pipette and outer organic solution. The tip current increases instantaneously as a sign of touching the interface when such a tip approaches the W/NB interface. The continuous change of tip current suggests ion penetrations into the interfacial region which is less than 1 nm, in accordance with the mixed solvent model. Ion distribution information can also be extracted from the current-distance (approach) curves obtained from solutions with a series of electrolyte concentrations. The experimental results show that the SICM approach curves are sensitive to the thickness of diffuse layers. This type of technique is actually a modified version of SICM, and is similar to the operation of ion transfer mode of scanning electrochemical microscopy (SECM) with a SICM instrumentation.
DOI10.1039/c1sc00133g
Indexed BySCI
Language英语
WOS IDWOS:000292964700016
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/71864
Collection中国科学院化学研究所
Corresponding AuthorShao, Yuanhua
AffiliationPeking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Ji, Tianrong,Liang, Zhongwei,Zhu, Xinyu,et al. Probing the structure of a water/nitrobenzene interface by scanning ion conductance microscopy[J]. CHEMICAL SCIENCE,2011,2(8):1523-1529.
APA Ji, Tianrong,Liang, Zhongwei,Zhu, Xinyu,Wang, Lingyu,Liu, Shujuan,&Shao, Yuanhua.(2011).Probing the structure of a water/nitrobenzene interface by scanning ion conductance microscopy.CHEMICAL SCIENCE,2(8),1523-1529.
MLA Ji, Tianrong,et al."Probing the structure of a water/nitrobenzene interface by scanning ion conductance microscopy".CHEMICAL SCIENCE 2.8(2011):1523-1529.
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