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
Full text in the Digital Library
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"
}