Publisher Correction: Nanoscale percolation in doped BaZrO3 for high proton mobility

Draber, Fabian M.; Ader, Christiane; Arnold, John P.; Eisele, Sebastian; Grieshammer, Steffen; Yamaguchi, Shu; Martin, Manfred

doi:10.1038/s41563-020-0654-3

Cited by 7 publications

(5 citation statements)

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“…The ordered dopant structures could be beneficial to proton conductivity through a possible lower dimensional proton conduction pathway in which enabled by a percolated dopant network. 32,33 A distance of 0.44 nm between characteristic rows of (200) are observed, and the corresponding lattice parameter for a Fm 3̄ m double perovskite unit cell should be 2 × 0.44 nm = 0.88 nm, which is consistent with the lattice parameter obtained from XRD Rietveld refinement (Fig. 2e).…”

Section: Resultssupporting

confidence: 84%

Critical role of acceptor dopants in designing highly stable and compatible proton-conducting electrolytes for reversible solid oxide cells

Luo

Zhou

et al. 2022

Energy Environ. Sci.

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Section: Resultssupporting

confidence: 84%

Critical role of acceptor dopants in designing highly stable and compatible proton-conducting electrolytes for reversible solid oxide cells

Luo

Zhou

et al. 2022

Energy Environ. Sci.

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“…The activation energies for all potential rotation and hopping processes are denoted along the transport routes. Typically, for proton conductors, the rotation process has a lower activation energy than the hopping process, [21] a trend observed for both BSCYb172 and BZCYYb1711. Notably, the activation energy of the hopping process in BZCYYb1711 is highly sensitive to its chemical environment: the values are 0.47 and 0.38 eV for the CeO 6 octahedron, 0.28 eV for the YbO 6 octahedron, and 0.21 eV for the ZrO 6 octahedron.…”

Section: Resultsmentioning

confidence: 87%

Harnessing High‐Throughput Computational Methods to Accelerate the Discovery of Optimal Proton Conductors for High‐Performance and Durable Protonic Ceramic Electrochemical Cells

Luo,

Hu,

Zhou

et al. 2024

Advanced Materials

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The pursuit of high‐performance and long‐lasting protonic ceramic electrochemical cells (PCECs) has been impeded by the lack of efficient and enduring proton conductors. Conventional research approaches, predominantly based on a trial‐and‐error methodology, have proven to be demanding of resources and time‐consuming. Here we report our findings in harnessing high‐throughput computational methods to expedite the discovery of optimal electrolytes for PCECs. We methodically computed the oxygen vacancy formation energy (EV), hydration energy (EH), and the adsorption energies of H2O and CO2 for a set of 932 oxide candidates. Notably, our findings highlight BaSnxCe0.8‐xYb0.2O3‐δ (BSCYb) as a prospective game‐changing contender, displaying superior proton conductivity and chemical resilience when compared to the well‐regarded BaZrxCe0.8‐xY0.1Yb0.1O3‐δ (BZCYYb) series. Experimental validations substantiate our computational predictions; PCECs incorporating BSCYb as the electrolyte achieved extraordinary peak power densities in the fuel cell mode (0.52 and 1.57 W cm−2 at 450 and 600°C, respectively), a current density of 2.62 A cm−2 at 1.3 V and 600°C in the electrolysis mode while demonstrating exceptional durability for over 1000 hours when exposed to 50% H2O. This research underscores the transformative potential of high‐throughput computational techniques in advancing the field of proton‐conducting oxides for sustainable power generation and hydrogen production.This article is protected by copyright. All rights reserved

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“…BaZrO 3 is a promising zirconate proton conductor widely used in refractory and electrical sectors. This material has excellent stability in a harsh environment, low proton migration, high melting temperature, high thermal expansion coefficient, excellent structure, and mechanical properties at high temperatures [ 51 , 52 ]. Furthermore, BaZrO 3 does not show any phase transition between low and high temperatures, making it suitable for electrochemical devices, including tritium monitoring systems, tritium recovery systems, hydrogen sensors, and hydrogen pumps [ 46 , 53 , 54 ].…”

Section: Proton-conducting Zirconatesmentioning

confidence: 99%

A Review of Applications, Prospects, and Challenges of Proton-Conducting Zirconates in Electrochemical Hydrogen Devices

et al. 2022

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In the future, when fossil fuels are exhausted, alternative energy sources will be essential for everyday needs. Hydrogen-based energy can play a vital role in this aspect. This energy is green, clean, and renewable. Electrochemical hydrogen devices have been used extensively in nuclear power plants to manage hydrogen-based renewable fuel. Doped zirconate materials are commonly used as an electrolyte in these electrochemical devices. These materials have excellent physical stability and high proton transport numbers, which make them suitable for multiple applications. Doping enhances the physical and electronic properties of zirconate materials and makes them ideal for practical applications. This review highlights the applications of zirconate-based proton-conducting materials in electrochemical cells, particularly in tritium monitors, tritium recovery, hydrogen sensors, and hydrogen pump systems. The central section of this review summarizes recent investigations and provides a comprehensive insight into the various doping schemes, experimental setup, instrumentation, optimum operating conditions, morphology, composition, and performance of zirconate electrolyte materials. In addition, different challenges that are hindering zirconate materials from achieving their full potential in electrochemical hydrogen devices are discussed. Finally, this paper lays out a few pathways for aspirants who wish to undertake research in this field.

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Publisher Correction: Nanoscale percolation in doped BaZrO3 for high proton mobility

Abstract: In the version of this Article originally published, the data points in Fig. 6a,b were incorrect. This has now been corrected. The original and corrected versions are shown below. The source data for Fig. 6 have been updated to reflect the change.

Cited by 7 publications

References 0 publications

Critical role of acceptor dopants in designing highly stable and compatible proton-conducting electrolytes for reversible solid oxide cells

Critical role of acceptor dopants in designing highly stable and compatible proton-conducting electrolytes for reversible solid oxide cells

Harnessing High‐Throughput Computational Methods to Accelerate the Discovery of Optimal Proton Conductors for High‐Performance and Durable Protonic Ceramic Electrochemical Cells

A Review of Applications, Prospects, and Challenges of Proton-Conducting Zirconates in Electrochemical Hydrogen Devices

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