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Development of three-electrode type micro-electrochemical reactor on anodized aluminum with photon rupture and electrochemistry

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Title: Development of three-electrode type micro-electrochemical reactor on anodized aluminum with photon rupture and electrochemistry
Authors: Sakairi, Masatoshi Browse this author →KAKEN DB
Yamada, Masashi Browse this author
Kikuchi, Tastuya Browse this author →KAKEN DB
Takahashi, Hideaki Browse this author
Keywords: Micro-reactor
Laser fabrication
Issue Date: 20-Jun-2007
Publisher: Elsevier Ltd.
Journal Title: Electrochimica Acta
Volume: 52
Issue: 21
Start Page: 6268
End Page: 6274
Publisher DOI: 10.1016/j.electacta.2007.04.025
Abstract: Photon rupture with a focused single pulse of pulsed YAG-laser irradiation was used to fabricate an aluminum electrochemical micro-reactor. Porous type anodic oxide film formed on aluminum specimens was irradiated in solutions with a pulsed Nd-YAG laser beam through a convex lens to fabricate micro-channels, micro-electrode, and through holes (for reference electrode, solution inlet, and outlet). During irradiation, specimens were moved by a computer controlled XYZ stage. After irradiation, the surface of the micro-channel and through hole were again treated to form anodic oxide film and the surface of the micro-electrode was treated electrochemically to provide an Au layer. The calculated volume of the micro-reactor including micro-channel and through holes is about 1.5 μl. The cyclic voltammogram of the micro-electrochemical cell was measured in K3Fe(CN)6/K4Fe(CN)6 with both static and flowing solution at different scanning rates. The anodic and cathodic peak currents were measured and the values depended on scanning rate and ion concentration when the solution was static. With the flowing solution, limiting currents were observed and the anodic limiting current was increased with the cubic root of the solution flow rate.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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