High H2 permeability in F-doped BaZr0.7Ce0.2Y0.1O3−δ perovskite membranes via thermodynamic controlled sintering

IF 4 3区工程技术 Q2 ENGINEERING, CHEMICAL AIChE Journal Pub Date : 2024-11-29 DOI:10.1002/aic.18670

Zhenbin Gu, Jinkun Tan, Haoli Zhou, Zhengkun Liu, Lin Ge, Guangru Zhang, Wanqin Jin

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Abstract

A raw hydrogen mixture frequently results in a reduction in conversion efficiency and the generation of undesired by-products. The application of advanced membrane technology has the potential to offer an economically viable solution for the recovery of hydrogen from such mixtures. BaZr_1−x−yCe_xY_yO_3−δ is increasingly regarded as an optimal perovskite hydrogen permeable membrane. Nevertheless, the main drawback to its use in a larger scale is the extremely low hydrogen permeability and stability. An original perovskite material is proposed in this study, BaZr_0.7Ce_0.2Y_0.1O_3−δ-F_x. A thermodynamic-controlled sintering strategy (TCS) has been employed to inhibit the evaporation of metals from ceramic solids. The TCS directly caused the hydrogen permeation flux to reach 1.07 ml·min⁻¹ cm⁻², representing a fourfold improvement. Furthermore, F-doping demonstrated enhanced performance at low and medium temperatures. The aforementioned successful strategy provides an effective path for the tailoring of perovskite materials and promotes its application for the industrial-scale separation of hydrogen.

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通过热力学控制烧结制备f掺杂BaZr0.7Ce0.2Y0.1O3−δ钙钛矿膜

原始氢混合物经常导致转换效率降低和产生不希望的副产物。先进膜技术的应用有可能为从这种混合物中回收氢提供经济可行的解决方案。BaZr1−x−yCexYyO3−δ越来越被认为是最佳的钙钛矿型透氢膜。然而，其大规模使用的主要缺点是极低的氢渗透性和稳定性。本研究提出了一种原始的钙钛矿材料BaZr0.7Ce0.2Y0.1O3−δ-Fx。采用热力学控制烧结策略（TCS）来抑制金属从陶瓷固体中的蒸发。TCS直接使氢气渗透通量达到1.07 ml·min−1 cm−2，提高了4倍。此外，f -掺杂在低温和中温条件下表现出增强的性能。上述成功的策略为钙钛矿材料的定制提供了有效的途径，并促进了其在工业规模氢气分离中的应用。

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来源期刊

AIChE Journal 工程技术-工程：化工

CiteScore

7.10

自引率

10.80%

发文量

411

审稿时长

3.6 months

期刊介绍： The AIChE Journal is the premier research monthly in chemical engineering and related fields. This peer-reviewed and broad-based journal reports on the most important and latest technological advances in core areas of chemical engineering as well as in other relevant engineering disciplines. To keep abreast with the progressive outlook of the profession, the Journal has been expanding the scope of its editorial contents to include such fast developing areas as biotechnology, electrochemical engineering, and environmental engineering. The AIChE Journal is indeed the global communications vehicle for the world-renowned researchers to exchange top-notch research findings with one another. Subscribing to the AIChE Journal is like having immediate access to nine topical journals in the field. Articles are categorized according to the following topical areas: Biomolecular Engineering, Bioengineering, Biochemicals, Biofuels, and Food Inorganic Materials: Synthesis and Processing Particle Technology and Fluidization Process Systems Engineering Reaction Engineering, Kinetics and Catalysis Separations: Materials, Devices and Processes Soft Materials: Synthesis, Processing and Products Thermodynamics and Molecular-Scale Phenomena Transport Phenomena and Fluid Mechanics.