期刊
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 29, 期 1, 页码 1239-1245出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-021-15696-3
关键词
Alkyldiazonium; Ethylenediamine; Gold electrode; Electrografting; Sustainable chemistry
资金
- Iraqi Ministry of Higher Education
- Scientific Research and Cultural Bureau/Embassy of the Republic of Iraq in Paris -France
- Campus France
- Region of Franche-Comte
The study focused on the electrochemical reduction of a diazonium salt prepared from ethylenediamine on a gold electrode, demonstrating successful covalent functionalization on the electrode surface. This development opens up a new direction for the research and development of chemosensors based on metals.
We studied the electrochemical reduction based on gold electrode of a diazonium salt prepared from ethylenediamine. This is the first time where the covalent functionalization on the gold electrode of an alkyldiazonium salt, 2-aminoethane-1-diazonium chloride, is demonstrated. This step requires the preparation beforehand by diazotization of one amine group from ethylenediamine. The resulting electrodeposited ethylamine film was confirmed by spectroscopic characterizations from gold surface modification monitored by electrochemical quartz crystal microbalance (EQCM) coupled to cyclic voltammetry (CV). The development of chemosensors based on such a covalent functionalization of a metal can reduce the chemical threats to human health along with drastically removing contaminants according to the green chemistry principles.
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