Highly efficient and stable symmetric porous supported mixed conductor ceramic membranes for pure oxygen production

IF 8.1 1区工程技术 Q1 ENGINEERING, CHEMICAL

Separation and Purification Technology Pub Date : 2025-02-01 DOI:10.1016/j.seppur.2025.131887

Tianxiang Chen, Peirong Zou, Huasheng Xiao, Xinzhi Chen

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引用次数: 0

Abstract

The quest for carbon neutrality has intensified the search for sustainable energy technologies, with a focus on Mixed Ionic and Electronic Conducting (MIEC) oxygen transport membranes (OTMs) for their potential in pure oxygen separation, catalytic membrane reactors, and solid oxide fuel cells (SOFCs). This study presents a novel Graded Porous Supported Symmetric (GPSS) structure for K₂NiF₄-type Pr₂Ni_0.95Mo_0.05O_4+δ (PNM05) membranes, addressing the challenge of balancing high oxygen permeability with long-term stability. The GPSS design, featuring a thin dense layer and porous support layers, enhances gas permeability and structural integrity. The introduction of Cu₂O as a sintering aid in the dense layer improves membrane densification and electronic conductivity, resulting in an oxygen permeation flux of 4.31 mL min⁻¹ cm⁻², superior to that of traditional hollow fiber membranes. This research provides a promising strategy for developing MIEC OTMs with high permeability and durability, aligning with the goals of carbon neutrality and sustainable energy production. The GPSS design offers a practical solution for advancing oxygen separation technologies in various industrial applications.

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来源期刊

Separation and Purification Technology 工程技术-工程：化工

CiteScore

14.00

自引率

12.80%

发文量

2347

审稿时长

43 days

期刊介绍： Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.