Pyrolytic 3D Carbon Microelectrodes for Electrochemistry

Suhith Hemanth; Claudia Caviglia; Letizia Amato; Thomas Aarøe Anhøj; Arto Heiskanen; Jenny Emnéus; Stephan Sylvest Keller

doi:10.1149/07201.0117ecst

Pyrolytic 3D Carbon Microelectrodes for Electrochemistry

Suhith Hemanth, Claudia Caviglia, Letizia Amato, Thomas Aarøe Anhøj, Arto Heiskanen, Jenny Emnéus, Stephan Sylvest Keller

Research output: Contribution to journal › Conference article › Research › peer-review

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Abstract

This work presents the fabrication and characterization of suspended three-dimensional (3D) pyrolytic carbon microelectrodes for electrochemical applications. For this purpose, an optimized process with multiple steps of UV photolithography with the negative tone photoresist SU-8 followed by pyrolysis at 900ºC for 1h was developed. With this process, microelectrode chips with a three electrode configuration were fabricated and characterized with cyclic voltammetry (CV) using a 10mM potassium ferri-ferrocyanide redox probe in a custom made batch system with magnetic clamping. The 3D pyrolytic carbon microelectrodes displayed twice the higher peak current compared to 2D.

Original language	English
Journal	ECS Transactions
Volume	72
Issue number	1
Pages (from-to)	117-124
Number of pages	8
ISSN	1938-6737
DOIs	https://doi.org/10.1149/07201.0117ecst
Publication status	Published - 2016

Cite this

Hemanth, S., Caviglia, C., Amato, L., Anhøj, T. A., Heiskanen, A., Emnéus, J., & Keller, S. S. (2016). Pyrolytic 3D Carbon Microelectrodes for Electrochemistry. ECS Transactions, 72(1), 117-124. https://doi.org/10.1149/07201.0117ecst

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abstract = "This work presents the fabrication and characterization of suspended three-dimensional (3D) pyrolytic carbon microelectrodes for electrochemical applications. For this purpose, an optimized process with multiple steps of UV photolithography with the negative tone photoresist SU-8 followed by pyrolysis at 900ºC for 1h was developed. With this process, microelectrode chips with a three electrode configuration were fabricated and characterized with cyclic voltammetry (CV) using a 10mM potassium ferri-ferrocyanide redox probe in a custom made batch system with magnetic clamping. The 3D pyrolytic carbon microelectrodes displayed twice the higher peak current compared to 2D.",

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AU - Hemanth, Suhith

AU - Caviglia, Claudia

AU - Amato, Letizia

AU - Anhøj, Thomas Aarøe

AU - Heiskanen, Arto

AU - Emnéus, Jenny

AU - Keller, Stephan Sylvest

PY - 2016

Y1 - 2016

N2 - This work presents the fabrication and characterization of suspended three-dimensional (3D) pyrolytic carbon microelectrodes for electrochemical applications. For this purpose, an optimized process with multiple steps of UV photolithography with the negative tone photoresist SU-8 followed by pyrolysis at 900ºC for 1h was developed. With this process, microelectrode chips with a three electrode configuration were fabricated and characterized with cyclic voltammetry (CV) using a 10mM potassium ferri-ferrocyanide redox probe in a custom made batch system with magnetic clamping. The 3D pyrolytic carbon microelectrodes displayed twice the higher peak current compared to 2D.

AB - This work presents the fabrication and characterization of suspended three-dimensional (3D) pyrolytic carbon microelectrodes for electrochemical applications. For this purpose, an optimized process with multiple steps of UV photolithography with the negative tone photoresist SU-8 followed by pyrolysis at 900ºC for 1h was developed. With this process, microelectrode chips with a three electrode configuration were fabricated and characterized with cyclic voltammetry (CV) using a 10mM potassium ferri-ferrocyanide redox probe in a custom made batch system with magnetic clamping. The 3D pyrolytic carbon microelectrodes displayed twice the higher peak current compared to 2D.

U2 - 10.1149/07201.0117ecst

DO - 10.1149/07201.0117ecst

M3 - Conference article

VL - 72

SP - 117

EP - 124

JO - E C S Transactions

JF - E C S Transactions

SN - 1938-5862

IS - 1

ER -

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10.1149/07201.0117ecst

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