Zhenbin Gu, Jinkun Tan, Haoli Zhou, Zhengkun Liu, Lin Ge, Guangru Zhang, Wanqin Jin
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High H2 permeability in F-doped BaZr0.7Ce0.2Y0.1O3−δ perovskite membranes via thermodynamic controlled sintering
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. BaZr1−x−yCexYyO3−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, BaZr0.7Ce0.2Y0.1O3−δ-Fx. 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.
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.
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