Solid electrolyte Sm0.2Ce0.8O2−δ reinforced polymer composite membranes for high temperature proton exchange membrane fuel cells

Niu, Bingbing; Yi, Wendi; Liang, Jiantao; Guo, Shuang; Xu, Baomin

doi:10.1016/j.matlet.2020.129241

Cited by 1 publication

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References 16 publications

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“…However, most of the PEMs (a key component of PEMFCs) are incapable of operating at high temperatures since water evaporating out from the membrane would result in the loss of proton conductivity. Therefore, PEMs that possess high proton conductivity under low relative humidity (RH) are in urgent need in a range of wide applications [ 6 , 7 , 8 ]. One of the most promising strategies to obtain such PEMs involves the incorporation of phosphotungstic acid (HPW) into the composite membrane, which can retain water under low RH due to the excellent water retention ability of HPW [ 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Anchoring Water Soluble Phosphotungstic Acid by Hybrid Fillers to Construct Three-Dimensional Proton Transport Networks

Dai

et al. 2021

Membranes

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Phosphotungstic acid (HPW)-filled composite proton exchange membranes possess high proton conductivity under low relative humidity (RH). However, the leaching of HPW limits their wide application. Herein, we propose a novel approach for anchoring water soluble phosphotungstic acid (HPW) by polydopamine (PDA) coated graphene oxide and halloysite nanotubes (DGO and DHNTs) in order to construct hybrid three-dimensional proton transport networks in a sulfonated poly(ether ether ketone) (SPEEK) membrane. The introduction of PDA on the surfaces of the hybrid fillers could provide hydroxyl groups and secondary amine groups to anchor HPW, resulting in the uniform dispersion of HPW in the SPEEK matrix. The SPEEK/DGO/DHNTs/HPW (90/5/5/60) composite membrane exhibited higher water uptake and much better conductivity than the SPEEK membrane at low relative humidity. The best conductivity reached wass 0.062 S cm−1 for the composite membrane, which is quite stable during the water immersion test.

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Section: Introductionmentioning

confidence: 99%

Anchoring Water Soluble Phosphotungstic Acid by Hybrid Fillers to Construct Three-Dimensional Proton Transport Networks

Dai

et al. 2021

Membranes

View full text Add to dashboard Cite

show abstract

Solid electrolyte Sm0.2Ce0.8O2−δ reinforced polymer composite membranes for high temperature proton exchange membrane fuel cells

Cited by 1 publication

References 16 publications

Anchoring Water Soluble Phosphotungstic Acid by Hybrid Fillers to Construct Three-Dimensional Proton Transport Networks

Anchoring Water Soluble Phosphotungstic Acid by Hybrid Fillers to Construct Three-Dimensional Proton Transport Networks

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