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Open AccessArticle

A Novel Laser 3D Printing Method for the Advanced Manufacturing of Protonic Ceramics

1
Department of Materials Science and Engineering, Clemson University, Clemson, SC 29634, USA
2
Department of Electrical and Computer Engineering, Clemson University, Clemson, SC 29634, USA
*
Author to whom correspondence should be addressed.
Membranes 2020, 10(5), 98; https://doi.org/10.3390/membranes10050098
Received: 20 April 2020 / Revised: 5 May 2020 / Accepted: 9 May 2020 / Published: 12 May 2020
(This article belongs to the Special Issue Ceramic Membranes for Fuel Cell Applications and Hydrogen Production)
Protonic ceramics (PCs) with high proton conductivity at intermediate temperatures (300–600 °C) have attracted many applications in energy conversion and storage devices such as PC fuel/electrolysis cells, PC membrane reactors, hydrogen pump, hydrogen or water-permeable membranes, and gas sensors. One of the essential steps for fulfilling the practical utilization of these intermediate-temperature PC energy devices is the successful development of advanced manufacturing methods for cost-effectively and rapidly fabricating them with high energy density and efficiency in a customized demand. In this work, we developed a new laser 3D printing (L3DP) technique by integrating digital microextrusion-based 3D printing and precise and rapid laser processing (sintering, drying, cutting, and polishing), which showed the capability of manufacturing PCs with desired complex geometries, crystal structures, and microstructures. The L3DP method allowed the fabrication of PC parts such as pellets, cylinders, cones, films, straight/lobed tubes with sealed endings, microchannel membranes, and half cells for assembling PC energy devices. The preliminary measurement of the L3DP electrolyte film showed a high proton conductivity of ≈7 × 10−3 S/cm. This L3DP technique not only demonstrated the potential to bring the PCs into practical use but also made it possible for the rapid direct digital manufacturing of ceramic-based devices. View Full-Text
Keywords: protonic ceramics; 3D printing; laser processing; fuel cells; membrane reactors protonic ceramics; 3D printing; laser processing; fuel cells; membrane reactors
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MDPI and ACS Style

Mu, S.; Hong, Y.; Huang, H.; Ishii, A.; Lei, J.; Song, Y.; Li, Y.; Brinkman, K.S.; Peng, F.; Xiao, H.; Tong, J. A Novel Laser 3D Printing Method for the Advanced Manufacturing of Protonic Ceramics. Membranes 2020, 10, 98.

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