Publication detail

Green activation using reducing agents of carbon-based 3D printed electrodes: Turning good electrodes to great

REDONDO NEGRETE, E. MUÑOZ MARTIN, J. PUMERA, M.

Original Title

Green activation using reducing agents of carbon-based 3D printed electrodes: Turning good electrodes to great

Type

journal article in Web of Science

Language

English

Original Abstract

3D printing of carbon-based nanocomposites, which combine the electrical properties of carbon additives with the benefits of thermoplastics, has emerged as a promising route towards rapid and low-cost manufacturing of customised-shaped electronic devices with minimised waste. However, their poor electrical activity in their pristine state makes activation post-treatments mandatory to reduce the amount of insulating polymer. These post-treatments typically involve the use of toxic organic solvents or costly thermal annealing methods. Herein, a simple eco-friendly wet-chemical post-treatment is presented for the quick and general activation of carbon-based 3D printed electronic devices by employing reducing agents like ascorbic acid or sodium borohydride. We tested a range of reducing agents, such as sodium borohydride, lithium aluminium hydride, hydrazine and ascorbic acid, as well as a model oxidising agent like hydrogen peroxide. We found that ascorbic acid and sodium borohydride are the most effective chemicals to achieve electrically active devices while preserving the shape and structure of the 3D printed carbon objects. Thus, this work allows the development of advanced carbon-based 3D printed electrodes by employing an eco-friendly activation approach.

Keywords

3D printed electrodes, Additive manufacturing, Polylactic acid, Graphene, Sodium borohydride

Authors

REDONDO NEGRETE, E.; MUÑOZ MARTIN, J.; PUMERA, M.

Released

30. 4. 2021

ISBN

1873-3891

Periodical

CARBON

Year of study

175

Number

1

State

United States of America

Pages from

413

Pages to

419

Pages count

7

URL

https://www.sciencedirect.com/science/article/pii/S0008622321001172

BibTex

@article{BUT169910,
  author="Edurne {Redondo Negrete} and Jose Maria {Muñoz Martin} and Martin {Pumera}",
  title="Green activation using reducing agents of carbon-based 3D printed electrodes: Turning good electrodes to great",
  journal="CARBON",
  year="2021",
  volume="175",
  number="1",
  pages="413--419",
  doi="10.1016/j.carbon.2021.01.107",
  issn="1873-3891",
  url="https://www.sciencedirect.com/science/article/pii/S0008622321001172"
}