DataVXLangmuirPaper
journal article·2025-01-28

Designing High Content Carbonylated β-Cyclodextrin/PBI Mixed Matrix Membrane as HT-PEM to Reduce H3PO4 Loss

Yingnan Ma, Juan Chen, Shanshan Xu, Yulu Zhang, Junyi Yan, Zeyun Liao, Zheng Xu, Zhen Xu, Lelin Zeng, Panliang Zhang

Langmuir· Volume 41· Issue 3
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Source abstract

Abstract

The high-temperature proton exchange membranes suffer from weak binding strength for phosphoric acid molecules, which seriously reduce the fuel cell efficiency, especially operation stability. Introduction of microporous material in the membrane can effectively reduce the leaching of phosphoric acid. However, due to the poor compatibility between the polymer and fillers, the membrane’s performance significantly reduced at high fillers content. Therefore, in this work, the strategy of micropore confinement was developed; the β-cyclodextrin was carbonylated and introduced into PBI casting solution as solution state rather than dry powder for reducing the interface energy between two phases, thus further reducing interface defects and increasing the content of effective confined micropores within the membrane. By this way, carbonylated β-cyclodextrin/PBI (50 wt %) mixed matrix membranes were obtained, the proton conductivity reached 142 ± 4 mS cm –1, while the conductivity attenuation was only 16.6%.
Source: openalex_inverted_index · Quality: baseline

Research context

Polymers

OpenAlex topics: Fuel Cells and Related Materials · Membrane Separation Technologies · Membrane-based Ion Separation Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, 414000 Hunan, P. R. China

Hunan Province Key Laboratory of Speciality Petrochemicals Catalysis and Separation, Yueyang, 414000 Hunan, P. R. China

School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China

School of Chemistry and Chemical Engineering, Hunan Engineering Research Center for Functional Film Materials, Hunan University of Science and Technology, Xiangtan 411201 Hunan, China

Funding

Natural Science Foundation of Hunan Province · Scientific Research Foundation of Hunan Provincial Education Department · Science and Technology Program of Hunan Province · National Natural Science Foundation of China

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