Time-Resolved Electrochemical Impedance Spectroscopy of Stochastic Nanoparticle Collision: Short Time Fourier Transform versus Continuous Wavelet Transform.

This work demonstrates the utilization of short-time Fourier transform (STFT), and continuous wavelet transform (CWT) electrochemical impedance spectroscopy (EIS) for time-resolved analysis of stochastic collision events of platinum nanoparticles (NPs) onto gold ultramicroelectrode (UME). The enhanced electrocatalytic activity is observed in both chronoamperometry (CA) and EIS. CA provides the impact moment and rough estimation of the size of NPs. The quantitative information such as charge transfer resistance (Rct ) relevant to the exchange current density of a single Pt NP is estimated from EIS. The CWT analysis of the phase angle parameter is better for NP collision detection in terms of time resolution compared to the STFT method.

[1]  Byoung‐Yong Chang.  The Effective Capacitance of a Constant Phase Element with Resistors in Series and Parallel , 2022, SSRN Electronic Journal.

[2]  S. Arya,et al.  Electrochemical Impedance Spectroscopy (EIS) Performance Analysis and Challenges in Fuel Cell Applications , 2022, Journal of Electrochemical Science and Technology.

[3]  L. Sepunaru,et al.  Detection and Characterization of Single Particles by Electrochemical Impedance Spectroscopy. , 2021, The journal of physical chemistry letters.

[4]  G. Láng,et al.  Methods for the Determination of Valid Impedance Spectra in Non‐stationary Electrochemical Systems: Concepts and Techniques of Practical Importance , 2021, ChemElectroChem.

[5]  Changsuk Yun.  Design Requirement for 2nd Generation Fourier Transform Electrochemical Impedance Spectroscopy (FT-EIS): Rise time and Applied Potential , 2021, International Journal of Electrochemical Science.

[6]  Seong Jung Kwon,et al.  Observation of Single Nanoparticle Collisions with Green Synthesized Pt, Au, and Ag Nanoparticles Using Electrocatalytic Signal Amplification Method , 2019, Nanomaterials.

[7]  Byoung‐Yong Chang,et al.  Implementation of 2nd Generation Fourier Transform Electrochemical Impedance Spectroscopy (FT-EIS) with Commercial Potentiostat and Application to Time-resolved EIS. , 2019, Analytical chemistry.

[8]  Lei Zhang,et al.  A fast measurement of Warburg-like impedance spectra with Morlet wavelet transform for electrochemical energy devices , 2019, Electrochimica Acta.

[9]  Steven L. Brunton,et al.  Data-Driven Science and Engineering , 2019 .

[10]  S. Pokhrel,et al.  Electrochemical Behavior of Single CuO Nanoparticles: Implications for the Assessment of their Environmental Fate. , 2018, Small.

[11]  R. Compton,et al.  Potassium (De-)insertion Processes in Prussian Blue Particles: Ensemble versus Single Nanoparticle Behaviour. , 2017, Chemistry.

[12]  Y. Long,et al.  Stochastic Collision Nanoelectrochemistry: A Review of Recent Developments , 2017 .

[13]  Yoshinao Hoshi,et al.  Wavelet transformation to determine impedance spectra of lithium-ion rechargeable battery , 2016 .

[14]  Stephen J. Percival,et al.  Fast-Scan Cyclic Voltammetry Allows Determination of Electron-Transfer Kinetic Constants in Single Nanoparticle Collision , 2016 .

[15]  M. Koper,et al.  Influence of hydrazine-induced aggregation on the electrochemical detection of platinum nanoparticles. , 2013, Langmuir : the ACS journal of surfaces and colloids.

[16]  B. Zhang,et al.  Stochastic electrochemistry with electrocatalytic nanoparticles at inert ultramicroelectrodes--theory and experiments. , 2011, Physical chemistry chemical physics : PCCP.

[17]  A. Bard,et al.  Electrochemistry of Single Nanoparticles via Electrocatalytic Amplification , 2010 .

[18]  Jun Li,et al.  Characterization of carbon nanofiber electrode arrays using electrochemical impedance spectroscopy: effect of scaling down electrode size. , 2010, ACS nano.

[19]  Su-Moon Park,et al.  Electrochemical impedance spectroscopy. , 2010, Annual review of analytical chemistry.

[20]  Julie V. Macpherson,et al.  Electrochemical impedance spectroscopy at single-walled carbon nanotube network ultramicroelectrodes , 2009 .

[21]  Xiaoyin Xiao,et al.  Current transients in single nanoparticle collision events. , 2008, Journal of the American Chemical Society.

[22]  Yoo,et al.  An electrochemical impedance measurement technique employing Fourier transform , 2000, Analytical chemistry.

[23]  N. Munichandraiah,et al.  A note on overpotential dependence of AC impedance data , 1999 .

[24]  P. Norouzi,et al.  High-Frequency Impedance Spectroscopy of Platinum Ultramicroelectrodes in Flowing Solutions , 1998 .

[25]  A. Grossmann,et al.  DECOMPOSITION OF HARDY FUNCTIONS INTO SQUARE INTEGRABLE WAVELETS OF CONSTANT SHAPE , 1984 .

[26]  J. Morlet,et al.  Wave propagation and sampling theory—Part I: Complex signal and scattering in multilayered media , 1982 .

[27]  J. Gibbs.  Fourier's Series , 1898, Nature.