Publication detail

Design of bimetallic 3D-printed electrocatalysts via galvanic replacement to enhance energy conversion systems

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

Original Title

Design of bimetallic 3D-printed electrocatalysts via galvanic replacement to enhance energy conversion systems

Type

journal article in Web of Science

Language

English

Original Abstract

3D-printing (also known as additive manufacturing) has recently emerged as an appealing technology to fight against the mainstream use of carbon-based fossil fuels by the large-scale, decentralized, and sustainable manufacturing of 3D-printed electrodes for energy conversion devices. Although promising strides have been made in this area, the tunability and implementation of cost-effective metal-based 3D-printed electrodes is a challenge. Herein, a straightforward method is reported to produce bimetallic 3D-printed electrodes with built-in noble metal catalysts via galvanic replacement. For this goal, a commercially available copper/polylactic acid composite filament has been exploited for the fabrication of Cu-based 3D-printed electrodes (3D-Cu) using fused filament fabrication (FFF) technology. The subsequent electroless deposition of an active noble metal catalyst (viz. Pd) onto the 3D-Cu surface has been carried out via galvanic exchange. A detailed electrochemical study run by scanning electrochemical microscopy (SECM) has revealed that the resulting bimetallic 3D-PdCu electrode exhibits enhanced capabilities by energy conversion related reactions -hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR)- when compared with the monometallic 3D-Cu counterpart. Thus, this simple functionalization approach provides a custom way for manufacturing functional metal-based 3D-printed electronics harboring noble metal catalysts to improve energy-converting applications on-demand and beyond.

Keywords

Cu; PLA; 3D-printed electrodes; Hydrogen evolution reaction; Oxygen reduction reaction; Scanning electrochemical microscopy

Authors

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

Released

5. 11. 2022

Publisher

Elsevier

Location

AMSTERDAM

ISBN

1873-3883

Periodical

Applied Catalysis B: Environmental

Year of study

316

Number

1

State

Kingdom of the Netherlands

Pages from

1

Pages to

9

Pages count

9

URL

https://www.sciencedirect.com/science/article/pii/S0926337322005501

Full text in the Digital Library

http://hdl.handle.net/11012/208478

BibTex

@article{BUT178673,
  author="Jose Maria {Muñoz Martin} and Christian {Iffelsberger} and Edurne {Redondo Negrete} and Martin {Pumera}",
  title="Design of bimetallic 3D-printed electrocatalysts via galvanic replacement to enhance energy conversion systems",
  journal="Applied Catalysis B: Environmental",
  year="2022",
  volume="316",
  number="1",
  pages="1--9",
  doi="10.1016/j.apcatb.2022.121609",
  issn="1873-3883",
  url="https://www.sciencedirect.com/science/article/pii/S0926337322005501"
}