Hybrid proton exchange membrane of sulfonated poly(ether ether ketone) containing polydopamine-coated carbon nanotubes loaded phosphotungstic acid for vanadium redox flow battery

Zhang, Yuxia; Wang, Haixia; Qian, Penghua; Zhang, Lei; Zhou, Yong; Shi, Haifeng

doi:10.1016/j.memsci.2021.119159

Cited by 68 publications

(28 citation statements)

References 64 publications

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“…These CNTs have been incorporated into SPEEK membranes in various forms, including multi-walled hybrid carbon nanotubes (MWCNT) containing carboxyl groups, 84 hydroxylated multi-walled carbon nanotubes (MWCNT-OH), 12 short carboxylic multi-walled carbon nanotube (SCCT), 37 and carbon nanotubes decorated with polydopamine (CNT @ PDA). [85][86][87] Offering a good balance between permeability and conductivity of vanadium ions, these composites exhibit a lower swelling rate, good stability, and lower permeability than pure SPEEK membranes and Nafion 211, 115, or 117. Under a current density of 100 mA cm À2 , the EE of VRFB assembled with SPEEK/MWCNT membrane (containing 0.5 wt% of MWCNT) 84 is approximately 86.2%, which is significantly higher than Nafion 211 membrane.…”

Section: Membranes Of Speek/(nanoparticles)mentioning

confidence: 99%

“…85 A hybrid membrane of sulfonated SPEEK/polydopaminecoated carbon nanotubes loaded phosphotungstic acid (SPEEK/DCNTs-HPW) was proposed for vanadium redox flow battery (VRFB). 87 With DCNTs-HPW nanofillers as proton donor and acceptor, a high proton conductivity and low vanadium ions permeability of the SPEEK/DCNTs-HPW hybrid membranes was achieved owing to acid-base interaction. A membrane of SPEEK/DCNTs-HPW-1 achieves higher ion selectivity (25.4 × 10 88 have validated the use of metallic-organic reinforcement (MOF) fillers in SPEEK composite membranes applied to the redox flow battery.…”

Section: Membranes Of Speek/(nanoparticles)mentioning

confidence: 99%

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An overview on the progress and development of modified sulfonated polyether ether ketone membranes for vanadium redox flow battery applications

Thiam

Magri

Vaudreuil

2021

High Performance Polymers

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Vanadium redox flow batteries (VRFB) are among the most promising approaches to efficiently store renewable energies. In such battery type, Nafion is commonly used as membrane material but suffers from high vanadium crossover and cost. These drawbacks negatively influence the widespread commercial application of VRFBs. Alternative membrane materials with high performance and low cost are thus being developed to address these shortfalls. Among those, possible materials for the VRFB membrane is sulfonated polyether ether ketone (SPEEK), which recently attracted considerable attention due to its low cost, combined with mechanical and chemical stability, and ease of preparation. This review summarizes the research activities related to the development of SPEEK-based membranes for VRFB applications and gives an overview of the properties of PEEK and its sulfonated form. A critical analysis on the challenges of SPEEK-based membranes is also discussed.

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Section: Membranes Of Speek/(nanoparticles)mentioning

confidence: 99%

Section: Membranes Of Speek/(nanoparticles)mentioning

confidence: 99%

An overview on the progress and development of modified sulfonated polyether ether ketone membranes for vanadium redox flow battery applications

Thiam

Magri

Vaudreuil

2021

High Performance Polymers

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“…To compensate for the -SO 3 Hg roups consumed in the acidbase interaction, the authors also anchored PWAo nt he surface of MWCNTs@PDArecently. [67] In addition, He et al proposed au nique strategy of electrospinning and fiberizing MWCNT/SPEEK materials (Figure 6d). [68] Under the action of ah igh electrospinning electrostatic field (1.3 kV cm À1 ), SPEEK formed electrospun nanofiber networks beneficial to long-range proton transport.…”

Section: Incorporation Of Nanomaterialsmentioning

confidence: 99%

A Chemistry and Microstructure Perspective on Ion‐Conducting Membranes for Redox Flow Batteries

et al. 2021

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Redox flow batteries (RFBs) are among the most promising grid‐scale energy storage technologies. However, the development of RFBs with high round‐trip efficiency, high rate capability, and long cycle life for practical applications is highly restricted by the lack of appropriate ion‐conducting membranes. Promising RFB membranes should separate positive and negative species completely and conduct balancing ions smoothly. Specific systems must meet additional requirements, such as high chemical stability in corrosive electrolytes, good resistance to organic solvents in nonaqueous systems, and excellent mechanical strength and flexibility. These rigorous requirements put high demands on the membrane design, essentially the chemistry and microstructure associated with ion transport channels. In this Review, we summarize the design rationale of recently reported RFB membranes at the molecular level, with an emphasis on new chemistry, novel microstructures, and innovative fabrication strategies. Future challenges and potential research opportunities within this field are also discussed.

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“…Polydopamine (PDA) was coated on the surface of inorganic particles (such as GO, HNTs, and CNTs), and therefore was often used to anchor HPW via hydrogen bond. [30][31][32][33][34] SiO 2 , g-C 3 N 4 and chitosan can also anchor HPW directly. For instance, anchoring HPW orderly on the inner wall of the nano channel of mesoporous silica, and thus an efficient proton transfer channel was constructed.…”

Section: Introductionmentioning

confidence: 99%

Anchoring HPW by amino‐modified MIL‐101(Cr) to improve the properties of SPEEK in proton exchange membranes

Zhang

Pei

et al. 2023

J of Applied Polymer Sci

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Incorporating phosphotungstic acid (HPW) in proton exchange membranes (PEMs) is an effective way to improve proton conductivity, but its leakage remains a problem. It can be solved by immobilizing acid in membranes to enhance the stability of PEMs. Herein, we proposed a novel sulfonated poly(ether ether ketone) (SPEEK) composite membrane (SPEEK/HPW@MIL) that was prepared by blending amino-modified MIL-101(Cr) to anchor HPW. In this work, HPW was anchored through hydrogen bond to minimize its leakage and enhance the overall compatibility. The incorporation of MIL-101(Cr)-NH 2 also helped lower the swelling ratio and improve the dimensional stability. Compared with pristine SPEEK and SPEEK/MIL membrane, the proton conductivity of the SPEEK/HPW@MIL composite membrane increased by 26% and 14%, respectively. The superior performance recommended a promising conception for anchoring HPW in PEMs.

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Hybrid proton exchange membrane of sulfonated poly(ether ether ketone) containing polydopamine-coated carbon nanotubes loaded phosphotungstic acid for vanadium redox flow battery

Cited by 68 publications

References 64 publications

An overview on the progress and development of modified sulfonated polyether ether ketone membranes for vanadium redox flow battery applications

An overview on the progress and development of modified sulfonated polyether ether ketone membranes for vanadium redox flow battery applications

A Chemistry and Microstructure Perspective on Ion‐Conducting Membranes for Redox Flow Batteries

Anchoring HPW by amino‐modified MIL‐101(Cr) to improve the properties of SPEEK in proton exchange membranes

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