Project Title

Investigations of Pre and Post treatment protocols in the fabrication of carbon fiber ultramicro- and nanoelectrodes

Authors' Affiliations

1. Theophilus Neequaye, Chemistry Department, college of Arts and Sciences. 2. George P. Affadu-Danful, Chemistry Department, college of Arts and Sciences. 3. Gregory W. Bishop, Chemistry Department, college of Arts and Sciences.

Location

BAYS MTN. ROOM 125

Start Date

4-4-2018 10:20 AM

End Date

4-4-2018 10:35 AM

Name of Project's Faculty Sponsor

Dr. Gregory W. Bishop

Faculty Sponsor's Department

Chemistry

Type

Oral Presentation

Classification of First Author

Graduate Student-Master’s

Project's Category

Natural Sciences

Abstract Text

Ultramicroelectrodes (UMEs) have gained considerable attention over the few past decades due to the important roles they play in electrochemical studies. Electrodes with dimension less than 25 mm can generally be classified as UMEs. These electrodes exhibit enhanced electrochemical properties as their dimensions get smaller hence making nanoelectrode (production of electrodes with limiting dimensions less than 100 nm) a continuing area of interest in research. Nanometer size electrodes have advantages of high sensitivity which enables them to be used in fields such as single particle characterization and single cell analysis, and fast electron and mass transport which permits use for studying short-lived and transient electrochemical reactions such as those involved in neurochemistry. Nanoelectrodes can be fabricated via a few different strategies which include but are not limited to electrochemically etching a thin metal wire down to a cone shape or flame-etching a carbon fiber, and chemical vapor deposition of carbon in nanopipette. This work seeks to employ the use of the laser-assisted pulling method to fabricate carbon fiber electrodes sealed in glass capillary tubes. Effects of various pre- and post- treatment techniques on electrode size and stability are explored.

Key words: Electrodes, Electrochemical, carbon fiber.

This document is currently not available here.

Share

COinS
 
Apr 4th, 10:20 AM Apr 4th, 10:35 AM

Investigations of Pre and Post treatment protocols in the fabrication of carbon fiber ultramicro- and nanoelectrodes

BAYS MTN. ROOM 125

Ultramicroelectrodes (UMEs) have gained considerable attention over the few past decades due to the important roles they play in electrochemical studies. Electrodes with dimension less than 25 mm can generally be classified as UMEs. These electrodes exhibit enhanced electrochemical properties as their dimensions get smaller hence making nanoelectrode (production of electrodes with limiting dimensions less than 100 nm) a continuing area of interest in research. Nanometer size electrodes have advantages of high sensitivity which enables them to be used in fields such as single particle characterization and single cell analysis, and fast electron and mass transport which permits use for studying short-lived and transient electrochemical reactions such as those involved in neurochemistry. Nanoelectrodes can be fabricated via a few different strategies which include but are not limited to electrochemically etching a thin metal wire down to a cone shape or flame-etching a carbon fiber, and chemical vapor deposition of carbon in nanopipette. This work seeks to employ the use of the laser-assisted pulling method to fabricate carbon fiber electrodes sealed in glass capillary tubes. Effects of various pre- and post- treatment techniques on electrode size and stability are explored.

Key words: Electrodes, Electrochemical, carbon fiber.