Polydopamine coated SPEEK membrane for a vanadium redox flow battery

Xi, Jingyu; Dai, Wenjing; Yu, Lihong

doi:10.1039/c5ra01486g

Cited by 47 publications

(19 citation statements)

References 44 publications

(86 reference statements)

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“…Unmodified Polydopamine Coating : Unmodified polydopamine coatings have been extensively used to change the surface properties of membranes for use in desalination, microbial fuel cells, biodevices, wastewater treatment, oil/seawater separation, electrodialysis, membrane bioreactors, and as battery separators . These coatings have been shown to increase hydrophilicity and underwater oleophobicity of many hydrophobic membrane surfaces, which can result in improved membrane performance though increased flux, and decreased microbial adhesion .…”

Section: Applications Of Catecholamine Polymersmentioning

confidence: 99%

“…Battery Energy Storage : Catecholamine coatings have been used variously for new battery technologies. The hydrophilic nature of polydopamine has been exploited, improving the transport of ions through otherwise hydrophobic battery separators and protecting the underlying membrane from damaging oxidizing electrolytes . The versatility of polydopamine for further modification has also been exploited to construct separators coated with aramid nanofibers, increasing thermal stability and electrochemical performance of the separator …”

Section: Applications Of Catecholamine Polymersmentioning

confidence: 99%

See 1 more Smart Citation

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Barclay

Hegab

Clarke

et al. 2017

Adv Materials Inter

301

223

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Almost ten years ago, Lee et al. [13] formulated a universal adhesive coating based on observation of the strong attachment by mussels through their byssal threads to virtually all types of inorganic and organic surfaces. The amino acid compositions of the mussel foot proteins that generate the attachment are rich in catechol and amine groups. [13][14][15] These groups associate under marine conditions, forming strong covalent and noncovalent interactions with substrates. [13] This led to the idea that both catechol and amine groups were crucial in forming robust, wide spectrum adhesive nanolayers [16,17] and consequently dopamine was conceived as a powerful building block for spontaneous deposition of thin polymer films. The dopamine monomer is deposited onto unadulterated surfaces through self-assembly and oxidative cross-linking from mild pH aqueous solution in a rapid reaction. This results in a durable, nanoscale, conformal, and hydrophilic coating that can be readily modified to introduce specific surface chemistries for a particular application. [18][19][20][21][22] These bioinspired, polydopamine materials are chemically and structurally indistinguishable from eumelanins found in the human body, [23,24] providing excellent biocompatibility. Additionally, polydopamine has broad electromagnetic absorption and excellent photothermal energy conversion [25] as well as having ionic-electronic hybrid conductivity. [26] Along with the excellent coating performance, these properties provide a vast array of potential applications for polydopamine materials.In this article, we explain what is known about polydopamine and related catecholamine coatings; their formation, the adhesion mechanism, and their physicochemical properties and we also review the applications of these materials (Figure 1). Since 2011, there have been a number of reviews on this subject matter, including general reviews on the physicochemical properties of polydopamine coatings [11,20,[27][28][29] and their applications. [20,27,30] There are also a number of more specific reviews on the chemical synthesis and modulation of polycatecholamine coatings, [31] the biomedical applications of these coatings, [8,[32][33][34] their electronic properties, [26,35] the use of polydopamine to make films at fluid interfaces, [36] in hierarchically constructed particles, [33] and capsules, [30] exploitation of polycatecholamine coatings in membrane filtration, [37] polydopamine-derived carbon materials, [38] and the use of coordination chemistry in catechol-based materials. [39] Nonetheless, this area of research is growing so rapidly [25,27] that many recent Polydopamine and related polycatecholamines can be easily deposited onto almost any surface from mild, aqueous solution. This results in durable, nanoscale coatings that exhibit high biocompatibility and have useful chemical and electronic properties. Additionally, these materials can be readily chemically and physically modified, and consequently, they are used extensively for surface modification. This ...

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Section: Applications Of Catecholamine Polymersmentioning

confidence: 99%

Section: Applications Of Catecholamine Polymersmentioning

confidence: 99%

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Barclay

Hegab

Clarke

et al. 2017

Adv Materials Inter

301

223

View full text Add to dashboard Cite

show abstract

“…However, extremely high cost and relatively low vanadium/proton selectivity have limited its wide application in VRB. In this regard, nonperfluorinated membranes including cation and anion exchange membranes are developed because of their high chemical and thermal stability . Among these membranes, sulfonated poly(ether ether ketone) (SPEEK) is considered to be the most promising alternative to Nafion membrane for its low cost, acceptable stability, and good electrochemical activity in VRB.…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, nonperfluorinated membranes including cation and anion exchange membranes are developed because of their high chemical and thermal stability. [3][4][5][6][7][8] Among these membranes, sulfonated poly(ether ether ketone) (SPEEK) is considered to be the most promising alternative to Nafion membrane for its low cost, acceptable stability, and good electrochemical activity in VRB. Studies show that the properties of SPEEK membranes depend on the degree of sulfonation (DS), 1,9,10 and higher proton conductivity can be obtained via prolonging sulfonation time and increasing temperature.…”

Section: Introductionmentioning

confidence: 99%

A super thin polytetrafluoroethylene/sulfonated poly(ether ether ketone) membrane with 91% energy efficiency and high stability for vanadium redox flow battery

Dai

Teng

Song

et al. 2016

J of Applied Polymer Sci

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In order to further decrease the cost and enhance the durability of sulfonated poly(ether ether ketone) membrane for vanadium redox flow battery, a super thin (40 μm) polytetrafluoroethylene (PTFE)/SPEEK (PS) membrane is prepared. The physico‐chemical properties and single cell performance of PS membranes prepared with different casting solvents including NMP (N‐methyl‐2‐pyrrolidone), DMF (N,N′‐dimethylformamide), and DMAc (N,N′‐dimethylacetamide) have been investigated. Results show that the energy efficiency of VRB with PS/DMF can reach up to 91.2% at the current density of 40 mA cm−2, which is 11.1% and 6.4% higher than that of the commercial Nafion 212 and pristine SPEEK membrane, respectively. In addition, charge–discharge test over 150 times proves that the PS/DMF membrane possesses high stability and thus it is suitable for VRB application. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43593.

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“…These membranes are low-cost and show high vanadium prevention attributed to the rigid main chain which leads to a poor microphase separation and narrow and tortuous ionic channels. 7,[21][22][23][24][25] Nevertheless, the application of these membranes in VFB is hampered by their poor chemical stability, which is considered to be induced by the introduction of ion exchange groups. [26][27][28][29][30] In order to address this issue, Zhang et al started to focus on porous membranes for VFBs, 31 which separates large vanadium ions from small protons by screening mechanism.…”

Section: -15mentioning

confidence: 99%

Thin skinned asymmetric polybenzimidazole membranes with readily tunable morphologies for high-performance vanadium flow batteries

Peng

Yan

et al. 2017

RSC Adv.

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A series of thin skinned asymmetric polybenzimidazole (PBI) membranes with readily tunable morphologies are fabricated by leaching out the porogen dibutyl phthalate (DBP), for vanadium flow batteries (VFBs). The ultrathin defect-free skin layer fully guarantees high ion selectivity of the membrane. Meanwhile, the area resistance (AR) of the asymmetric PBI membrane is dramatically reduced compared to that of the dense one because of interconnected macro-pores in the sublayer. The membrane morphologies and properties are readily adjusted by varying the porogen content (0-300 wt%), thus managing well the trade-off between AR and ion selectivity. The membrane prepared by adding 200 wt% porogen has a high porosity of 74.9 vol% and an appropriately dense skin thickness of 4.9 mm, and yields the best balance between AR and ion selectivity, assembled with which the flow battery achieves excellent cell performances (coulombic efficiency, CE: 99.0%; energy efficiency, EE: 82.3%) as well as a moderate capacity decay rate (CDR, 0.4% per cycle) at 80 mA cm À2 over cycling. The thin skinned asymmetric PBI membranes prepared here surpass the commercial Nafion 211 membrane (CE: 84.6%; EE: 68.1%; CDR:1.3% per cycle) in terms of cell performances and cost, becoming a promising candidate for VFBs.

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Polydopamine coated SPEEK membrane for a vanadium redox flow battery

Cited by 47 publications

References 44 publications

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

A super thin polytetrafluoroethylene/sulfonated poly(ether ether ketone) membrane with 91% energy efficiency and high stability for vanadium redox flow battery

Thin skinned asymmetric polybenzimidazole membranes with readily tunable morphologies for high-performance vanadium flow batteries

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