Comment on “Enhancing the output performance of hybrid nanogenerators based on Al-doped BaTiO3 composite films: a self-powered utility system for portable electronics”, by B. Dudem, L. K. Bharat, H. Patnam, A. R. Mule and J. S. Yu, J. Mater. Chem. A, 2018, 6, 16101

Alexander Tkach; Olena Okhay

doi:10.1039/D3TA01041D

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Comment on “Enhancing the output performance of hybrid nanogenerators based on Al-doped BaTiO₃ composite films: a self-powered utility system for portable electronics”, by B. Dudem, L. K. Bharat, H. Patnam, A. R. Mule and J. S. Yu, J. Mater. Chem. A, 2018, 6, 16101

Alexander Tkach

*^a and Olena Okhay

^bc

Author affiliations

* Corresponding authors

^a CICECO – Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
E-mail: atkach@ua.pt

^b TEMA – Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal

^c LASI – Intelligent Systems Associate Laboratory, 4800-058 Guimaraes, Portugal

Abstract

BaTiO₃ particles with 2% Al dopant concentration were reported by Dudem et al. in J. Mater. Chem. A, 2018, 6, 16101 to exhibit a high remnant polarisation and piezoelectric coefficient, being hence employed to efficiently enhance the output performance of hybrid piezo/triboelectric nanogenerators. However, in this comment we express concerns regarding the discussion of the piezoelectric coefficient and the interpretation or reliability of the ferroelectric results in that publication. We also discuss an inconsistency between the Al doping content and the presented results, and contend that other material data analyses were contradictory or incorrect and that many important details were missing.

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DOI: https://doi.org/10.1039/D3TA01041D
Article type: Comment
Submitted: 19 Feb 2023
Accepted: 04 Oct 2023
First published: 14 Nov 2023

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J. Mater. Chem. A, 2023,11, 25756-25758

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Comment on “Enhancing the output performance of hybrid nanogenerators based on Al-doped BaTiO₃ composite films: a self-powered utility system for portable electronics”, by B. Dudem, L. K. Bharat, H. Patnam, A. R. Mule and J. S. Yu, J. Mater. Chem. A, 2018, 6, 16101

A. Tkach and O. Okhay, J. Mater. Chem. A, 2023, 11, 25756 DOI: 10.1039/D3TA01041D

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Journal of Materials Chemistry A

Comment on “Enhancing the output performance of hybrid nanogenerators based on Al-doped BaTiO₃ composite films: a self-powered utility system for portable electronics”, by B. Dudem, L. K. Bharat, H. Patnam, A. R. Mule and J. S. Yu, J. Mater. Chem. A, 2018, 6, 16101

Abstract

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Comment on “Enhancing the output performance of hybrid nanogenerators based on Al-doped BaTiO₃ composite films: a self-powered utility system for portable electronics”, by B. Dudem, L. K. Bharat, H. Patnam, A. R. Mule and J. S. Yu, J. Mater. Chem. A, 2018, 6, 16101

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