Hydrogen production by 3D-printed electrodes

Author(s)

Pereira, Mateus Veras ; Neumsteir, Naile Vacilotto ; Bonacin, Juliano Alves

• Document type: Journal article
• Source: DISCOVER MATERIALS; v. 4, n. 1, p. 14-pg., 2024-05-18.

Abstract

The increasing demand for energy, depletion of traditional energy sources, and environmental concerns have generated an energy crisis in recent years. To address this challenge, innovative and low-cost solutions have been sought, such as the use of 3D printing for decentralized hydrogen production. In this paper, we present the production of conductive filaments prepared from polylactic acid (PLA) and Carbon Black (CB), which were used for the 3D printing of electrodes. The produced materials were characterized by scanning electron microscopy, thermal analysis, and electrochemical techniques. The 3D-printed electrodes were used as substrates for CoPi electrodeposition to evaluate their performance in hydrogen production. The 3D-printed electrodes, made from filaments prepared in the laboratory, demonstrated superior electrochemical performance and hydrogen production compared to electrodes printed compared with commercial filament. The PLA@CB72R and CoPi#PLA@CB72R electrodes showed better hydrogen production performance, 10.08 and 10.20 mu mol min-1, respectively. This study provides a perspective for the manufacture of filaments and 3D-printed electrodes for energy conversion applications, such as hydrogen production. (AU)

• FAPESP's process: 20/14769-8 - Development of state-of-the-art 3D printed electrodes for electrocatalytic studies
• Grantee: Mateus Veras Pereira
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 17/11986-5 - Generation and storage of New Energy: bringing technological development for the country
• Grantee: Ana Flávia Nogueira
• Support Opportunities: Research Grants - Research Centers in Engineering Program
• FAPESP's process: 21/05976-2 - Strategies for improving the performance of Prussian blue-based catalysts in water oxidation reactions under mild conditions
• Grantee: Juliano Alves Bonacin
• Support Opportunities: Regular Research Grants