Enhanced proton conductivity in zirconium-rich perovskites via barium diffusion-assisted low-temperature sintering

Aman Sharma; Konosuke Watanabe; Hiroyuki Shimada; Yuki Yamaguchi; Katsuhiro Nomura; Mizuki Momai; Yasunobu Mizutani; Hirofumi Sumi; M. Fujioka

doi:10.1039/d5ta06821e

January 1, 2025Journal of Materials Chemistry A

Enhanced proton conductivity in zirconium-rich perovskites via barium diffusion-assisted low-temperature sintering

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Key Points

Enhanced proton conductivity achieved through novel Ba-diffusion-assisted sintering.
Densification of BaCe 0.4 Zr 0.4 Y 0.1 Yb 0.1 O 3₋δ completed at temperatures 1200-1400°C.
Controlled barium carbonate addition critical for lowering sintering temperature.
Study demonstrates vast potential for optimizing zirconium-rich perovskites in fuel cells.

Implication

The Ba-diffusion approach improves densification and lowers sintering temperatures in zirconium-rich electrolytes.

Abstract

This study demonstrated the Ba-diffusion-assisted sintering strategy that enables complete densification of BaCe 0.4 Zr 0.4 Y 0.1 Yb 0.1 O 3₋δ (BCZYYb4411) electrolytes at substantially reduced temperatures (1200-1400°C) compared to conventional methods (≥1600°C). By controlling barium carbonate (BaCO 3 )...

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Sharma et al. (2025) studied this question.

synapsesocial.com/papers/68c18f2a9b7b07f3a0615348 https://doi.org/10.1039/d5ta06821e

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Enhanced proton conductivity in zirconium-rich perovskites via barium diffusion-assisted low-temperature sintering

Key Points

Implication

Abstract

Discussion

Cite This Study

Enhanced proton conductivity in zirconium-rich perovskites via barium diffusion-assisted low-temperature sintering

Key Points

Implication

Abstract

Discussion

Cite This Study

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