TY - JOUR
T1 - Hierarchically Self-Assembled Star-Shaped ZnO Microparticles for Electrochemical Sensing of Amines
AU - Du, Jianping
AU - Huang, Xiaoxi
AU - Zhao, Ruihua
AU - Li, Jinping
AU - Asefa, Tewodros
N1 - Funding Information:
The authors thank the National Natural Science Foundation of China (21136007 and 51572185), the Natural Science Foundation of Shanxi Province (2014011016-4), and the US National Science Foundation (NSF; CBET-1508611) for financial support.
PY - 2016/6/6
Y1 - 2016/6/6
N2 - Novel, hierarchically nanostructured, star-shaped ZnO (SSZ) microparticles are synthesized by a hydrothermal synthetic route. The SSZ microparticles serve as effective platforms for electrochemical detection of amines in solution. The morphology and structure of the materials are characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and UV/Vis spectroscopy. The as-synthesized SSZ microparticles comprise self-assembled hexagonal prisms that possess nanometer and micrometer pores in their structure and on their surfaces - structural features that are conducive to sensing applications. An electrode fabricated by using the hierarchically nanostructured SSZ materials serve as a sensitive electrochemical sensor for detection of low concentrations of ethylenediamine, with a sensitivity of 2.98×10-2mA cm-2mm-1, a detection limit of 2.36×10-2mm, and a short response time of 8 s. Stellar detection: Hierarchically nanostructured star-shaped ZnO (SSZ) microparticles that can serve as efficient electrochemical sensors for ethylenediamine (EDA) are synthesized by a simple hydrothermal synthetic route. The SSZ microparticles show a high sensitivity for detection of EDA with a value of 2.98×10-2mA cm-2mm-1and with a short response time of 8 s.
AB - Novel, hierarchically nanostructured, star-shaped ZnO (SSZ) microparticles are synthesized by a hydrothermal synthetic route. The SSZ microparticles serve as effective platforms for electrochemical detection of amines in solution. The morphology and structure of the materials are characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and UV/Vis spectroscopy. The as-synthesized SSZ microparticles comprise self-assembled hexagonal prisms that possess nanometer and micrometer pores in their structure and on their surfaces - structural features that are conducive to sensing applications. An electrode fabricated by using the hierarchically nanostructured SSZ materials serve as a sensitive electrochemical sensor for detection of low concentrations of ethylenediamine, with a sensitivity of 2.98×10-2mA cm-2mm-1, a detection limit of 2.36×10-2mm, and a short response time of 8 s. Stellar detection: Hierarchically nanostructured star-shaped ZnO (SSZ) microparticles that can serve as efficient electrochemical sensors for ethylenediamine (EDA) are synthesized by a simple hydrothermal synthetic route. The SSZ microparticles show a high sensitivity for detection of EDA with a value of 2.98×10-2mA cm-2mm-1and with a short response time of 8 s.
KW - amines
KW - self-assembly
KW - semiconductors
KW - sensors
KW - zinc oxide
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U2 - 10.1002/chem.201601110
DO - 10.1002/chem.201601110
M3 - Article
AN - SCOPUS:84992300456
VL - 22
SP - 8068
EP - 8073
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
SN - 0947-6539
IS - 24
ER -