Modifications on Promoting the Proton Conductivity of Polybenzimidazole-Based Polymer Electrolyte Membranes in Fuel Cells

Hydrogen-air proton exchange membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs) are excellent fuel cells with high limits of energy density. However, the low carbon monoxide (CO) tolerance of the Pt electrode catalyst in hydrogen-air PEMFCs and methanol permanent in DMFCs greatly hi...

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Published inMembranes (Basel) Vol. 11; no. 11; p. 826
Main Authors Chen, Junyu, Cao, Jiamu, Zhang, Rongji, Zhou, Jing, Wang, Shimin, Liu, Xu, Zhang, Tinghe, Tao, Xinyuan, Zhang, Yufeng
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 27.10.2021
MDPI
Subjects
Alternative energy
Carbon monoxide
Catalysts
Conductivity
DMFC
Electrodes
Electrolytes
Electrolytic cells
Flux density
Fuel cells
Fuel technology
Heat resistance
High temperature
Hydrogen
Membranes
Methanol
PEMFC
Permeability
polybenzimidazole
Polybenzimidazoles
polymer electrolyte membrane
Polymers
proton conductivity
proton exchange membrane
Proton exchange membrane fuel cells
Protons
Review
Thermal stability
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Abstract Hydrogen-air proton exchange membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs) are excellent fuel cells with high limits of energy density. However, the low carbon monoxide (CO) tolerance of the Pt electrode catalyst in hydrogen-air PEMFCs and methanol permanent in DMFCs greatly hindered their extensive use. Applying polybenzimidazole (PBI) membranes can avoid these problems. The high thermal stability allows PBI membranes to work at elevated temperatures when the CO tolerance can be significantly improved; the excellent methanol resistance also makes it suitable for DMFCs. However, the poor proton conductivity of pristine PBI makes it hard to be directly applied in fuel cells. In the past decades, researchers have made great efforts to promote the proton conductivity of PBI membranes, and various effective modification methods have been proposed. To provide engineers and researchers with a basis to further promote the properties of fuel cells with PBI membranes, this paper reviews critical researches on the modification of PBI membranes in both hydrogen-air PEMFCs and DMFCs aiming at promoting the proton conductivity. The modification methods have been classified and the obtained properties have been included. A guide for designing modifications on PBI membranes for high-performance fuel cells is provided.
AbstractList Hydrogen-air proton exchange membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs) are excellent fuel cells with high limits of energy density. However, the low carbon monoxide (CO) tolerance of the Pt electrode catalyst in hydrogen-air PEMFCs and methanol permanent in DMFCs greatly hindered their extensive use. Applying polybenzimidazole (PBI) membranes can avoid these problems. The high thermal stability allows PBI membranes to work at elevated temperatures when the CO tolerance can be significantly improved; the excellent methanol resistance also makes it suitable for DMFCs. However, the poor proton conductivity of pristine PBI makes it hard to be directly applied in fuel cells. In the past decades, researchers have made great efforts to promote the proton conductivity of PBI membranes, and various effective modification methods have been proposed. To provide engineers and researchers with a basis to further promote the properties of fuel cells with PBI membranes, this paper reviews critical researches on the modification of PBI membranes in both hydrogen-air PEMFCs and DMFCs aiming at promoting the proton conductivity. The modification methods have been classified and the obtained properties have been included. A guide for designing modifications on PBI membranes for high-performance fuel cells is provided.
Hydrogen-air proton exchange membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs) are excellent fuel cells with high limits of energy density. However, the low carbon monoxide (CO) tolerance of the Pt electrode catalyst in hydrogen-air PEMFCs and methanol permanent in DMFCs greatly hindered their extensive use. Applying polybenzimidazole (PBI) membranes can avoid these problems. The high thermal stability allows PBI membranes to work at elevated temperatures when the CO tolerance can be significantly improved; the excellent methanol resistance also makes it suitable for DMFCs. However, the poor proton conductivity of pristine PBI makes it hard to be directly applied in fuel cells. In the past decades, researchers have made great efforts to promote the proton conductivity of PBI membranes, and various effective modification methods have been proposed. To provide engineers and researchers with a basis to further promote the properties of fuel cells with PBI membranes, this paper reviews critical researches on the modification of PBI membranes in both hydrogen-air PEMFCs and DMFCs aiming at promoting the proton conductivity. The modification methods have been classified and the obtained properties have been included. A guide for designing modifications on PBI membranes for high-performance fuel cells is provided.Hydrogen-air proton exchange membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs) are excellent fuel cells with high limits of energy density. However, the low carbon monoxide (CO) tolerance of the Pt electrode catalyst in hydrogen-air PEMFCs and methanol permanent in DMFCs greatly hindered their extensive use. Applying polybenzimidazole (PBI) membranes can avoid these problems. The high thermal stability allows PBI membranes to work at elevated temperatures when the CO tolerance can be significantly improved; the excellent methanol resistance also makes it suitable for DMFCs. However, the poor proton conductivity of pristine PBI makes it hard to be directly applied in fuel cells. In the past decades, researchers have made great efforts to promote the proton conductivity of PBI membranes, and various effective modification methods have been proposed. To provide engineers and researchers with a basis to further promote the properties of fuel cells with PBI membranes, this paper reviews critical researches on the modification of PBI membranes in both hydrogen-air PEMFCs and DMFCs aiming at promoting the proton conductivity. The modification methods have been classified and the obtained properties have been included. A guide for designing modifications on PBI membranes for high-performance fuel cells is provided.
Author Zhang, Yufeng
Liu, Xu
Wang, Shimin
Chen, Junyu
Zhou, Jing
Zhang, Rongji
Tao, Xinyuan
Zhang, Tinghe
Cao, Jiamu
AuthorAffiliation 2 Harbin Institute of Technology, Harbin Inst Technol, Res Ctr Space Opt Engn, Harbin 150001, China
1 School of Astronautics, Harbin Institute of Technology, Harbin 150001, China; cjy9291@126.com (J.C.); 15663592622@163.com (R.Z.); daxiongmao@hit.edu.cn (J.Z.); 18800421178@163.com (S.W.); liuxu21S0416@163.com (X.L.); nbiryhct@126.com (T.Z.); 1182100225@stu.hit.edu.cn (X.T.); yufeng_zhang@hit.edu.cn (Y.Z.)
3 Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education, Harbin 150001, China
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– name: 1 School of Astronautics, Harbin Institute of Technology, Harbin 150001, China; cjy9291@126.com (J.C.); 15663592622@163.com (R.Z.); daxiongmao@hit.edu.cn (J.Z.); 18800421178@163.com (S.W.); liuxu21S0416@163.com (X.L.); nbiryhct@126.com (T.Z.); 1182100225@stu.hit.edu.cn (X.T.); yufeng_zhang@hit.edu.cn (Y.Z.)
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Snippet Hydrogen-air proton exchange membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs) are excellent fuel cells with high limits of energy density....
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SubjectTerms Alternative energy
Carbon monoxide
Catalysts
Conductivity
DMFC
Electrodes
Electrolytes
Electrolytic cells
Flux density
Fuel cells
Fuel technology
Heat resistance
High temperature
Hydrogen
Membranes
Methanol
PEMFC
Permeability
polybenzimidazole
Polybenzimidazoles
polymer electrolyte membrane
Polymers
proton conductivity
proton exchange membrane
Proton exchange membrane fuel cells
Protons
Review
Thermal stability
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Title Modifications on Promoting the Proton Conductivity of Polybenzimidazole-Based Polymer Electrolyte Membranes in Fuel Cells
URI https://www.proquest.com/docview/2602129306
https://www.proquest.com/docview/2604021925
https://pubmed.ncbi.nlm.nih.gov/PMC8618715
https://doaj.org/article/2d48c8e50a54412aa175f2b85a1aaa30
Volume 11
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