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Geometrical and chemical effects on the electrochemistry of single-wall carbon nanotube (SWCNT) network electrodes

Journal Article · · Electrochimica Acta
 [1];  [1];  [2];  [3];  [4];  [1]
  1. Aalto Univ., Otaniemi (Finland)
  2. Aalto Univ., Otaniemi (Finland); Canatu Oy, Vantaa (Finland)
  3. Canatu Oy, Vantaa (Finland)
  4. Aalto Univ., Otaniemi (Finland); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Univ. of Oulu (Finland)

Single-wall carbon nanotube (SWCNT) network is a promising electrode material for bio detection. Unfortunately, the associations between their physical as well as chemical properties and observed electrochemical performance are not known. This hinders any systematic optimization of the network properties towards specific analytes. Here we present a consistent physicochemical and electrochemical characterization of differently treated SWCNT networks. The results unambiguously show that (i) even if the electrochemical properties of different electrodes are practically identical when assessed by surface insensitive outer sphere redox (OSR) probes their behavior with inner sphere redox (ISR) probes can be drastically different. Further, (ii) the choice of the modification method (structural, chemical, electrochemical) heavily depends on nature of the target analyte, which are typically ISR probes. Although, (iii) chemical changes in the carbon phase appeared to be minor, effects of different treatments on oxidation states of Fe appeared to have a strong effect on the electrochemical performance of the networks in the case of ISR probes.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
2308802
Journal Information:
Electrochimica Acta, Vol. 466; ISSN 0013-4686
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (42)

Theoretical Analysis of Polarographic Waves. I. Reduction of Simple Metal Ions journal June 1955
Carbon nanotube-modified microelectrodes for simultaneous detection of dopamine and serotonin in vivo journal January 2007
The Phase of Iron Catalyst Nanoparticles during Carbon Nanotube Growth journal December 2012
Helical microtubules of graphitic carbon journal November 1991
Aerosol-Synthesized SWCNT Networks with Tunable Conductivity and Transparency by a Dry Transfer Technique journal November 2010
The iron L edges: Fe 2p X-ray absorption and electron energy loss spectroscopy journal April 2013
Predicting Hydrogen-Bond Strengths from Acid−Base Molecular Properties. The p K a Slide Rule: Toward the Solution of a Long-Lasting Problem journal January 2009
Layer-by-layer assembled carbon nanotubes for selective determination of dopamine in the presence of ascorbic acid journal January 2005
Electron Transfer Kinetics of Aquated Fe[sup +3∕+2], Eu[sup +3∕+2], and V[sup +3∕+2] at Carbon Electrodes journal January 1993
Rapid industrial scale synthesis of robust carbon nanotube network electrodes for electroanalysis journal September 2021
Control of reactivity at carbon electrode surfaces journal December 1994
Nanoscale engineering to control mass transfer on carbon-based electrodes journal July 2022
Carbon-Nanotube Based Electrochemical Biosensors: A Review journal January 2005
The Potential of Zero Charge book January 2002
Structure and bonding in amorphous iron carbide thin films journal January 2015
Hybrid carbon based nanomaterials for electrochemical detection of biomolecules journal July 2017
Trends in Carbon, Oxygen, and Nitrogen Core in the X-ray Absorption Spectroscopy of Carbon Nanomaterials: A Guide for the Perplexed journal December 2020
Electronic and magnetic properties of highly ordered Sr2FeMoO6 journal December 2004
Single-walled carbon nanotube synthesis using ferrocene and iron pentacarbonyl in a laminar flow reactor journal July 2006
Identifying the Mechanism of Biosensing with Carbon Nanotube Transistors journal February 2008
Measurement of the diffusion coefficients of [Ru(NH3)6]3+ and [Ru(NH3)6]2+ in aqueous solution using microelectrode double potential step chronoamperometry journal March 2011
Surface electrochemistry of oxides: Thermodynamic and model approaches journal July 1996
Structure-property relationships in carbon electrochemistry journal November 2022
Chemical effects at metal/oxide interfaces studied by x-ray-absorption spectroscopy journal November 2001
Chemical Vapor Deposition of Carbon Nanotubes: A Review on Growth Mechanism and Mass Production journal June 2010
Electrocatalysis at graphite and carbon nanotube modified electrodes: edge-plane sites and tube ends are the reactive sites journal January 2005
A comparative study of the stability of hexachloroiridate and hexacyanoferrate in electrochemical mass transfer measurements journal December 2020
Advanced Carbon Electrode Materials for Molecular Electrochemistry journal July 2008
Electrochemical reactions of catechol, methylcatechol and dopamine at tetrahedral amorphous carbon (ta-C) thin film electrodes journal October 2015
Study of carbon nanotube modified biosensor for monitoring total cholesterol in blood journal April 2005
Theory and Application of Cyclic Voltammetry for Measurement of Electrode Reaction Kinetics. journal October 1965
X-ray-absorption spectroscopy at the Fe L 2 , 3 threshold in iron oxides journal August 1995
Ferrocene Functionalized Single-Walled Carbon Nanotube Bundles. Hybrid Interdigitated Construction Film for l -Glutamate Detection journal December 2006
First Principles Calculation of Fe L2,3-edge X-ray Absorption Near Edge Structures of Iron Oxides journal January 2004
Effect of Electrochemical Oxidation on Physicochemical Properties of Fe‐Containing Single‐Walled Carbon Nanotubes journal October 2020
Electron Transfer Kinetics at Modified Carbon Electrode Surfaces: The Role of Specific Surface Sites journal September 1995
Raman spectroscopy of carbon nanotubes journal March 2005
Interface electronic structures of BaTiO 3 @ X nanoparticles ( X = γ -Fe 2 O 3 , Fe 3 O 4 , α -Fe 2 O 3 , and Fe) investigated by XAS and XMCD journal January 2009
Carbon Nanotubes: Present and Future Commercial Applications journal January 2013
Unmodified and multi-walled carbon nanotube modified tetrahedral amorphous carbon (ta-C) films as in vivo sensor materials for sensitive and selective detection of dopamine journal October 2018
Electrochemistry at Single-Walled Carbon Nanotubes:  The Role of Band Structure and Quantum Capacitance journal June 2006
Simultaneous determination of dopamine and serotonin on a glassy carbon electrode coated with a film of carbon nanotubes journal July 2003