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. 2020 May 14;5(20):11637-11642.
doi: 10.1021/acsomega.0c00879. eCollection 2020 May 26.

Rapid Laser Reactive Sintering for Sustainable and Clean Preparation of Protonic Ceramics

Shenglong Mu  1 , Hua Huang  1 , Akihiro Ishii  1 , Yuzhe Hong  1 , Aaron Santomauro  1 , Zeyu Zhao  1 , Minda Zou  1 , Fei Peng  1 , Kyle S Brinkman  1 , Hai Xiao  2 , Jianhua Tong  1
Affiliations

Rapid Laser Reactive Sintering for Sustainable and Clean Preparation of Protonic Ceramics

Shenglong Mu et al. ACS Omega. .

Abstract

One of the essential challenges for energy conversion and storage devices based on protonic ceramics is that the high temperature (1600-1700 °C) and long-time firing (>10 h) are inevitably required for the fabrication, which makes the sustainable and clean manufacturing of protonic ceramic devices impractical. This study provided a new rapid laser reactive sintering (RLRS) method for the preparation of nine protonic ceramics [i.e., BaZr0.8Y0.2O3-δ (BZY20), BZY20 + 1 wt % NiO, BaCe0.7Zr0.1Y0.1Yb0.1O3-δ (BCZYYb), BCZYYb + 1 wt % NiO, 40 wt % BCZYYb + 60 wt % NiO, BaCe0.85Fe0.15O3-δ-BaCe0.15Fe0.85O3-δ (BCF), BaCo0.4Fe0.4Zr0.1Y0.1O3-δ (BCFZY0.1), BaCe0.6Zr0.3Y0.1O3-δ (BCZY63), and La0.7Sr0.3CrO3-δ (LSC)] with desired crystal structures and microstructures. Following this, the dual-layer half-cells, comprising the porous electrode and dense electrolyte, were prepared by the developed RLRS technique. After applying the BCFZY0.1 cathode, the protonic ceramic fuel cell (PCFC) single cells were prepared and tested initially. The derived conductivity of the RLRS electrolyte films showed comparable proton conductivity with the electrolyte prepared by conventional furnace sintering. The initial cost estimation based on electricity consumption during the sintering process for the fabrication of PCFC single cells showed that RLRS is more competitive than the conventional furnace sintering. This RLRS can be combined with the rapid additive manufacturing of ceramics for the sustainable and clean manufacturing of protonic ceramic energy devices and the processing of other ceramic devices.

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Conflict of interest statement

The authors declare no competing financial interest.

Figures

Figure 1
Figure 1
Schematic description of protonic ceramics. Route 1: Conventional ceramic-processing method and Route 2: Rapid laser reactive processing method.
Figure 2
Figure 2
XRD patterns of the protonic ceramic component films obtained by the RLRS.
Figure 3
Figure 3
SEM images of dense protonic ceramic component films obtained by RLRS. (a) Cross-section of BCZYYb + 1 wt % NiO electrolyte film, (b) cross-section of BZY20 + 1 wt % NiO electrolyte film, (c) the cross-section of LSC interconnect film, and (d) the cross-section of BCF composite film.
Figure 4
Figure 4
SEM images of the porous protonic ceramic components obtained by RLRS. (a) Cross-section of 40 wt % BCZYYb + 60 wt % NiO H2 electrode film, (b) cross-section of BCZY63 O2 electrode scaffold film, and (c) cross-section of BCFZY0.1 O2 electrode film.
Figure 5
Figure 5
SEM image (a) and optical photo (b) of 40 wt % BCZYYb + 60 wt % NiO | BCZYYb + 1 wt % NiO half-cells.
Figure 6
Figure 6
Conductivity of the BCZYYb electrolyte obtained by the RLRS method measured in the single cell operation under open-circuit voltage condition (air/H2 without humidification).
See this image and copyright information in PMC

References

    1. Kochetova N.; Animitsa I.; Medvedev D.; Demin A.; Tsiakaras P. Recent activity in the development of proton-conducting oxides for high-temperature applications. RSC Adv. 2016, 6, 73222–73268. 10.1039/c6ra13347a. - DOI
    1. Yamazaki Y.; Hernandez-Sanchez R.; Haile S. M. High total proton conductivity in large-grained yttrium-doped barium zirconate. Chem. Mater. 2009, 21, 2755–2762. 10.1021/cm900208w. - DOI
    1. Shang M.; Tong J.; O’Hayre R. A promising cathode for intermediate temperature protonic ceramic fuel cells: BaCo0.4Fe0.4Zr0.2O3−δ. RSC Adv. 2013, 3, 15769–15775. 10.1039/c3ra41828f. - DOI
    1. Yang L.; Wang S.; Blinn K.; Liu M.; Liu Z.; Cheng Z.; Liu M. Enhanced sulfur and coking tolerance of a mixed ion conductor for SOFCs: BaZr0.1Ce0.7Y0.2-xYbxO3-δ. Science 2009, 326, 126–129. 10.1126/science.1174811. - DOI - PubMed
    1. Babilo P.; Uda T.; Haile S. M. J. Mater. Res. 2007, 22, 1322–1330. 10.1557/jmr.2007.0163. - DOI