Volume 133, Issue 11 pp. 6141-6150
Forschungsartikel

Precise Molecular-Level Modification of Nafion with Bismuth Oxide Clusters for High-performance Proton-Exchange Membranes

Bailing Liu

Bailing Liu

Key Lab of Polyoxometalate Science of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalys, Faculty of Chemistry, Northeast Normal University, Changchun, 130024 P. R. China

Jinlin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry, Changchun University of Science and Technology Changchun, Changchun, Jilin, 130024 P. R. China

These authors contributed equally to this work.

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Bo Hu

Bo Hu

Key Lab of Polyoxometalate Science of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalys, Faculty of Chemistry, Northeast Normal University, Changchun, 130024 P. R. China

School of chemistry and pharmaceutical engineering, Jilin Institute of Chemical Technology, Jinlin, 132022 P. R. China

These authors contributed equally to this work.

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Jing Du

Jing Du

Key Lab of Polyoxometalate Science of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalys, Faculty of Chemistry, Northeast Normal University, Changchun, 130024 P. R. China

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Dongming Cheng

Dongming Cheng

Key Lab of Polyoxometalate Science of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalys, Faculty of Chemistry, Northeast Normal University, Changchun, 130024 P. R. China

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Hong-Ying Zang

Corresponding Author

Hong-Ying Zang

Key Lab of Polyoxometalate Science of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalys, Faculty of Chemistry, Northeast Normal University, Changchun, 130024 P. R. China

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Xin Ge

Xin Ge

Electron Microscopy Center, Jilin University, Changchun, 130012 China

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Huaqiao Tan

Huaqiao Tan

Key Lab of Polyoxometalate Science of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalys, Faculty of Chemistry, Northeast Normal University, Changchun, 130024 P. R. China

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Yonghui Wang

Yonghui Wang

Key Lab of Polyoxometalate Science of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalys, Faculty of Chemistry, Northeast Normal University, Changchun, 130024 P. R. China

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Xiaozheng Duan

Corresponding Author

Xiaozheng Duan

State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022 P. R. China

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Zhao Jin

Zhao Jin

State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022 P. R. China

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Wei Zhang

Wei Zhang

Electron Microscopy Center, Jilin University, Changchun, 130012 China

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Yangguang Li

Corresponding Author

Yangguang Li

Key Lab of Polyoxometalate Science of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalys, Faculty of Chemistry, Northeast Normal University, Changchun, 130024 P. R. China

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Zhongmin Su

Zhongmin Su

Key Lab of Polyoxometalate Science of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalys, Faculty of Chemistry, Northeast Normal University, Changchun, 130024 P. R. China

Jinlin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry, Changchun University of Science and Technology Changchun, Changchun, Jilin, 130024 P. R. China

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First published: 09 December 2020
Citations: 27

Abstract

Fabricating proton exchange membranes (PEMs) with high ionic conductivity and ideal mechanical robustness through regulation of the membrane microstructures achieved by molecular-level hybridization remains essential but challenging for the further development of high-performance PEM fuel cells. In this work, by precisely hybridizing nano-scaled bismuth oxide clusters into Nafion, we have fabricated the high-performance hybrid membrane, Nafion-Bi12-3 %, which showed a proton conductivity of 386 mS cm−1 at 80 °C in aqueous solution with low methanol permeability, and conserved the ideal mechanical and chemical stabilities as PEMs. Moreover, molecular dynamics (MD) simulation was employed to clarify the structural properties and the assembly mechanisms of the hybrid membrane on the molecular level. The maximum current density and power density of Nafion-Bi12-3 % for direct methanol fuel cells reached to 432.7 mA cm−2 and 110.2 mW cm−2, respectively. This work provides new insights into the design of versatile functional polymer electrolyte membranes through polyoxometalate hybridization.

Conflict of interest

The authors declare no conflict of interest.

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