DRTtools

We are pleased to introduce the DRTtools, an open-source Matlab toolbox for computing distribution relaxation times (DRT) from electrochemical impedance spectroscopy (EIS) data.

What is the DRTtools? Why would I want it?

DRTtools is a Matlab toolbox that analyzes EIS data via the DRT model. DRTtools includes:

• an intuitive GUI for computing DRT based on Tikhonov regularization

• several options for optimizing the estimation of the DRT

• a sampler that allows you to determine the credible intervals of your DRT

• Hilbert-transform subroutines that allow you to assess and score the quality of your data

Hopefully, by now you are inclined to think that this toolbox may be useful to the interpretation of your EIS data. If you are interested, you will find an explanation of the toolbox's capabilities it in the user's guide as well as in the references below.

Distribution and Release Information

DRTtools is freely available under the MIT license from this site.

System requirements

To install and run the DRTtools, you need:

Matlab 7.12 or above Optimization toolbox of Matlab The DRTtools toolbox was tested and implemented on a Windows-based machine.

Detailed installation instructions are available in the DRT toolbox user's guide (also included with the standard distribution).

How to cite this work?

[1] Wan, T. H., Saccoccio, M., Chen, C., & Ciucci, F. (2015). Influence of the discretization methods on the distribution of relaxation times deconvolution: implementing radial basis functions with DRTtools. Electrochimica Acta, 184, 483-499.

Link: https://doi.org/10.1016/j.electacta.2015.09.097

if you are presenting the Bayesian credible intervals generated by the DRTtools in any of your academic works, you should cite the following references also:

[2] Ciucci, F., & Chen, C. (2015). Analysis of electrochemical impedance spectroscopy data using the distribution of relaxation times: A Bayesian and hierarchical Bayesian approach. Electrochimica Acta, 167, 439-454.

Link: https://doi.org/10.1016/j.electacta.2015.03.123

[3] Effat, M. B., & Ciucci, F. (2017). Bayesian and hierarchical Bayesian based regularization for deconvolving the distribution of relaxation times from electrochemical impedance spectroscopy data. Electrochimica Acta, 247, 1117-1129.

Link: https://doi.org/10.1016/j.electacta.2017.07.050

if you are using the DRTtools to compute the Hilbert Transform, you should cite:

[4] Liu, J., Wan, T. H., & Ciucci, F. (2020).A Bayesian view on the Hilbert transform and the Kramers-Kronig transform of electrochemical impedance data: Probabilistic estimates and quality scores. Electrochimica Acta, 357, 136864.

Link: https://doi.org/10.1016/j.electacta.2020.136864

How to get support?

Just write to francesco.ciucci@ust.hk

References:

1. Ciucci, F. (2020). The Gaussian process Hilbert transform (GP-HT): testing the Ccnsistency of electrochemical impedance spectroscopy data. Journal of The Electrochemical Society, 167, 12, 126503. https://doi.org/10.1149/1945-7111/aba937
2. Liu, J., Wan, T. H., & Ciucci, F. (2020).A Bayesian view on the Hilbert transform and the Kramers-Kronig transform of electrochemical impedance data: Probabilistic estimates and quality scores. Electrochimica Acta, 357, 136864. https://doi.org/10.1016/j.electacta.2020.136864
3. Ciucci, F. (2019). Modeling electrochemical impedance spectroscopy. Current Opinion in Electrochemistry, 13, 132-139. doi.org/10.1016/j.coelec.2018.12.003
4. Saccoccio, M., Wan, T. H., Chen, C., & Ciucci, F. (2014). Optimal regularization in distribution of relaxation times applied to electrochemical impedance spectroscopy: ridge and lasso regression methods-a theoretical and experimental study. Electrochimica Acta, 147, 470-482. doi.org/10.1016/j.electacta.2014.09.058
5. Wan, T. H., Saccoccio, M., Chen, C., & Ciucci, F. (2015). Influence of the discretization methods on the distribution of relaxation times deconvolution: implementing radial basis functions with DRTtools. Electrochimica Acta, 184, 483-499. doi.org/10.1016/j.electacta.2015.09.097
6. Ciucci, F., & Chen, C. (2015). Analysis of electrochemical impedance spectroscopy data using the distribution of relaxation times: a Bayesian and hierarchical Bayesian approach. Electrochimica Acta, 167, 439-454. doi.org/10.1016/j.electacta.2015.03.123
7. Effat, M. B., & Ciucci, F. (2017). Bayesian and hierarchical Bayesian based regularization for deconvolving the distribution of relaxation times from electrochemical impedance spectroscopy data. Electrochimica Acta, 247, 1117-1129. doi.org/10.1016/j.electacta.2017.07.050
8. Liu, J., & Ciucci, F. (2019). The Gaussian process distribution of relaxation times: a machine learning tool for the analysis and prediction of electrochemical impedance spectroscopy data. Electrochimica Acta, 135316. doi.org/10.1016/j.electacta.2019.135316
9. Liu, J., & Ciucci, F. (2020). The deep-prior distribution of relaxation times. Journal of The Electrochemical Society, 167(2), 026506. 10.1149/1945-7111/ab631a