Experimental investigation of newly designed 3D-printed electrodes for hydrogen evolution reaction in alkaline media

Muarij Khalil and Ibrahim Dincer

Energy, 2024, vol. 304, issue C

Abstract: This paper employs a novel approach for fabricating 3D-printed cathodes for hydrogen evolution reaction for alkaline water electrolysis. The approach investigated in this study involves using additive manufacturing to 3D print electrodes with non-conductive PLA followed by nickel conductive paint coating and electrodeposition of various catalysts. The nickel and nickel-copper, nickel-iron, and nickel-molybdenum alloys are electrodeposited. The nickel electrodes tend to have high overpotentials for 3D-printed electrodes. In this study, a low overpotential for the nickel coated electrode is reported. At a current density of 10 mA/cm2, for sample J with a nickel mass density of 0.178 g/cm2, an overpotential of 367 mV for hydrogen evolution reaction (HER) is measured in 1 mol potassium hydroxide (KOH) solution. The electrochemical activity of the electrodes is further enhanced through the incorporation of catalysts. Specifically, the electrode coated with nickel-molybdenum is found to have an overpotential of 337 mV at a current density of 10 mA/cm2 for HER in 1 mol KOH solution.

Keywords: Electrodes; Electrolysis; Hydrogen; Alkaline media; Cathodes; Electrodeposition (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544224017912
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:304:y:2024:i:c:s0360544224017912

DOI: 10.1016/j.energy.2024.132017

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().