期刊
ELECTROCHIMICA ACTA
卷 201, 期 -, 页码 274-278出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.10.066
关键词
Click Chemistry; surface patterning; SECM; diazonium reduction; dual microelectrode
资金
- PEPS NANO-GLOS
- IDEX Bordeaux
A dual gold-copper microelectrode (diameter 25 mu m) was fabricated to be employed in a scanning electrochemical microscopy (SECM) configuration, and was used in feedback mode to both modify (write) and analyze (read) a substrate. This write-and-read procedure was performed on a glassy carbon electrode on which azide groups were introduced by electrochemical reduction of a diazonium salt. The copper part of the microelectrode was used to electrogenerate Cu(I) that catalyzed a click reaction between azide moieties on the surface and dissolved ethynylferrocene. This created a pattern of ferrocene moieties on the surface that was analyzed with the gold part of the microelectrode. (C) 2015 Elsevier Ltd. All rights reserved.
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