Publication detail

Supercapacitors in Motion: Autonomous Microswimmers for Natural-Resource Recovery

MOHSEN BELADI, M. KHEZRI, B. MATĚJKOVÁ, R. SOFER, Z. PUMERA, M.

Original Title

Supercapacitors in Motion: Autonomous Microswimmers for Natural-Resource Recovery

Type

journal article in Web of Science

Language

English

Original Abstract

An electroadsorption technique similar to the ultrafast charging mechanism in supercapacitors is utilized to remove metals with different sizes and hydrophilicities from contaminated water using self-propelled microswimmers. The swimmers carry graphite fibre or bismuth with a layered crystal structure providing high electrostatic double-layer capacitances. Unlike previous methods, this electrochemical technique does not only utilize the surface of the swimmers, but due to the interlayer spacing of the graphite and bismuth, it is able to store metals in approximate to 400 layers, allowing removal and recovery of >50 ppm lithium in only 5 min. A larger interlayer distance between bismuth sheets allows the removal of bigger cations (sodium and calcium), expanding the application of this method to a large variety of natural elements. Finally, magnetic navigation of charged swimmers to an oxygen-saturated media causes oxidation and thus immediate release of the metal ions from the swimmers.

Keywords

bismuth; environmental remediation; graphite; lithium purification; micromotors

Authors

MOHSEN BELADI, M.; KHEZRI, B.; MATĚJKOVÁ, R.; SOFER, Z.; PUMERA, M.

Released

14. 9. 2019

ISBN

1521-3773

Periodical

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Year of study

58

Number

38

State

Federal Republic of Germany

Pages from

13340

Pages to

13344

Pages count

5

URL

https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201906642

BibTex

@article{BUT159813,
  author="Mousavi {Mohsen Beladi} and Bahareh {Khezri} and Romana {Matějková} and Zdeněk {Sofer} and Martin {Pumera}",
  title="Supercapacitors in Motion: Autonomous Microswimmers for Natural-Resource Recovery",
  journal="ANGEWANDTE CHEMIE-INTERNATIONAL EDITION",
  year="2019",
  volume="58",
  number="38",
  pages="13340--13344",
  doi="10.1002/anie.201906642",
  issn="1521-3773",
  url="https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201906642"
}