Enhanced proton conductivity of viscose-based membranes <i>via</i> ionic modification and dyeing processes for fuel cell applications (2024)

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Abstract References References

Abstract

Proton exchange membranes (PEMs), which are crucial fuel cell parts, play an important role in the field of energy science. However, the further development of conventional PEMs based on synthetic polymers is greatly limited by high energy consumption and difficult degradation. In this work, we reported the fabrication of a novel viscose-based PEM via cationic modification and dyeing treatment with the reactive dyes KE-7B1. High-efficiency proton transmission channels can be constructed due to the formation of the complex internal three-dimensional network of the as-prepared viscose-based PEM. H+ conductivity ( σH+) and water uptake are intensively investigated by changing the cationic agents and KE-7B1, and the maximum σH+ reaches 44.19 mS/cm at 80 °C and 98% relative humidity (RH). Furthermore, the prepared membrane shows the lowest calculated activation energy value (12.25 kJ/mol), indicating that both Grotthuss and Vehicle mechanisms play an important role in ionic transport. The membrane chemical structure and micromorphology are analyzed and the proton transmission modes are explored in detail, supplemented with research on the hydrophilic/hydrophobic characteristics and crystallinity of the membranes. The application stability of the membranes is also evaluated analyzing the thermal, mechanical, and oxygen resistance properties, and the results show that all the prepared membranes can maintain good thermal stability within 200 °C. The maximum tensile strength reaches 42.12 MPa, and the mass losses of the membranes soaked in 30% (in mass, same below) H2O2 solution for 120 h can be restricted to 10%. Therefore, as a novel PEM, the obtained dye viscose-based membranes show great potential for application in fuel cells.

References

[1]

Vinothkannan M, Kim AR, Ryu SK, Yoo DJ. Structurally modulated and functionalized carbon nanotubes as potential filler for Nafion matrix toward improved power output and durability in proton exchange membrane fuel cells operating at reduced relative humidity. J Membr Sci 2022;649:120393. https://doi.org/10.1016/j.memsci.2022.120393.

[2]

Li Y, Li D, Ma Z, Zheng M, Lu Z. Thermodynamic modeling and performance analysis of vehicular high-temperature proton exchange membrane fuel cell system. Membranes 2022;12:72. https://doi.org/10.3390/membranes12010072.

[3]

Kim AR, Vinothkannan M, Ramakrishnan S, Park BH, Han MK, Yoo DJ. Enhanced electrochemical performance and long-term durability of composite membranes through a binary interface with sulfonated unzipped graphite nanofibers for polymer electrolyte fuel cells operating under low relative humidity. Appl Surf Sci 2022;593:153407. https://doi.org/10.1016/j.apsusc.2022.153407.

[4]

Yan XH, Jiang HR, Zhao G, Zeng L, Zhao TS. Preparations of an inorganic-framework proton exchange nanochannel membrane. J Power Sources 2016;326:466-475. https://doi.org/10.1016/j.jpowsour.2016.07.022.

[5]

Zeng J, Shen PK, Lu S, Xiang Y, Li L, De Marco R, et al. Correlation between proton conductivity, thermal stability and structural symmetries in novel HPW-meso-silica nanocomposite membranes and their performance in direct methanol fuel cells. J Membr Sci 2012;397–398:92-101. https://doi.org/10.1016/j.memsci.2012.01.018.

[6]

Duan X, Zhao J, Song D, Wang N, Jia J, Liu K, et al. Preparation and investigation on the low temperature proton exchange membranes with the enhanced proton conductivity at subzero temperature. J Mol Liq 2021;328:115377. https://doi.org/10.1016/j.molliq.2021.115377.

[7]

Khomein P, Ketelaars W, Lap T, Liu G. Sulfonated aromatic polymer as a future proton exchange membrane: a review of sulfonation and crosslinking methods. Renew Sustain Energy Rev 2021;137:110471. https://doi.org/10.1016/j.rser.2020.110471.

[8]

Nguyen H, Klose C, Metzler L, Vierrath S, Breitwieser M. Fully hydrocarbon membrane electrode assemblies for proton exchange membrane fuel cells and electrolyzers: an engineering perspective. Adv Energy Mater 2022;12:2103559. https://doi.org/10.1002/aenm.202103559.

[9]

Prykhodko Y, Fatyeyeva K, Hespel L, Marais S. Progress in hybrid composite Nafion®-based membranes for proton exchange fuel cell application. Chem Eng J 2021;409:127329. https://doi.org/10.1016/j.cej.2020.127329.

[10]

Pal S, Mondal R, Chatterjee U. Sulfonated polyvinylidene fluoride and functional copolymer based blend proton exchange membrane for fuel cell application and studies on methanol crossover. Renew Energy 2021;170:974-984. https://doi.org/10.1016/j.renene.2021.02.046.

[11]

Maiti TK, Singh J, Dixit P, Majhi J, Bhushan S, Bandyopadhyay A, et al. Advances in perfluorosulfonic acid-based proton exchange membranes for fuel cell applications: a review. Chem Eng J Adv 2022;12:100372. https://doi.org/10.1016/j.ceja.2022.100372.

[12]

Wang Y, Liu L, Liu Y, Li N, Hu Z, Chen S. Double-filler composite sulfonated poly(aryl ether ketone) membranes with graphite carbon nitride and graphene oxide as polyelectrolyte for fuel cells. Polymer 2022;238:124426. https://doi.org/10.1016/j.polymer.2021.124426.

[13]

Liu Q, Li X, Zhang S, Wang Z, Chen Y, Zhou S, et al. Novel sulfonated N-heterocyclic poly(aryl ether ketone ketone)s with pendant phenyl groups for proton exchange membrane performing enhanced oxidative stability and excellent fuel cell properties. J Membr Sci 2022;641:119926. https://doi.org/10.1016/j.memsci.2021.119926.

[14]

Tseng C-Y, Ye Y-S, Cheng M-Y, Kao K-Y, Shen W-C, Rick J, et al. Sulfonated polyimide proton exchange membranes with graphene oxide show improved proton conductivity, methanol crossover impedance, and mechanical properties. Adv Energy Mater 2011;1:1220-4. https://doi.org/10.1002/aenm.201100366.

[15]

Hooshyari K, Rezania H, Vatanpour V, Salarizadeh P, Askari MB, Beydaghi H, et al. High temperature membranes based on PBI/sulfonated polyimide and doped-perovskite nanoparticles for PEM fuel cells. J Membr Sci 2020;612:118436. https://doi.org/10.1016/j.memsci.2020.118436.

[16]

Li Y, Zhang X, He G, Zhang F. Sulfonated poly(phenylene sulfide) grafted polysulfone proton exchange membrane with improved stability. Int J Hydrogen Energy 2017;42:2360-9. https://doi.org/10.1016/j.ijhydene.2016.09.183.

[17]

Peng J, Fu X, Luo J, Liu Y, Wang L, Peng X. Constructing novel cross-linked polybenzimidazole network for high-performance high-temperature proton exchange membrane. J Membr Sci 2022;643:120037. https://doi.org/10.1016/j.memsci.2021.120037.

[18]

Guo H, Li Z, Pei H, Sun P, Zhang L, Li P, et al. Stable branched polybenzimidazole high temperature proton exchange membrane: crosslinking and pentaphosphonic-acid doping lower fuel permeability and enhanced proton transport. J Membr Sci 2022;644:120092. https://doi.org/10.1016/j.memsci.2021.120092.

[19]

Rosli NA, Loh KS, Wong WY, Lee TK, Ahmad A. Hybrid composite membrane of phosphorylated chitosan/poly (vinyl alcohol)/silica as a proton exchange membrane. Membranes 2021;11:675. https://doi.org/10.3390/membranes11090675.

[20]

Gouda MH, Konsowa AH, Farag HA, Elessawy NA, Tamer TM, Eldin MSM. Development novel eco-friendly proton exchange membranes doped with nano sulfated zirconia for direct methanol fuel cells. J Polym Res 2021;28:263. https://doi.org/10.1007/s10965-021-02628-5.

[21]

Samaniego AJ, Espiritu R. Prospects on utilization of biopolymer materials for ion exchange membranes in fuel cells. Green Chem Lett Rev 2022;15:253-75. https://doi.org/10.1080/17518253.2022.2040599.

[22]

Jia C, Chen C, Kuang Y, Fu K, Wang Y, Yao Y, et al. From wood to textiles: top-down assembly of aligned cellulose nanofibers. Adv Mater 2018;30:1801347. https://doi.org/10.1002/adma.201801347.

[23]

Huang X, Ji Y, Guo L, Xu Q, Jin L, Fu Y, et al. Incorporating tannin onto regenerated cellulose film towards sustainable active packaging. Ind Crop Prod 2022;180:114710. https://doi.org/10.1016/j.indcrop.2022.114710.

[24]

Mohammed N, Lian H, Islam MS, Strong M, Shi Z, Berry RM, et al. Selective adsorption and separation of organic dyes using functionalized cellulose nanocrystals. Chem Eng J 2021;417:129237. https://doi.org/10.1016/j.cej.2021.129237.

[25]

Yang M, Lotfikatouli S, Chen Y, Li T, Ma H, Mao X, et al. Nanostructured all-cellulose membranes for efficient ultrafiltration of wastewater. J Membr Sci 2022;650:120422. https://doi.org/10.1016/j.memsci.2022.120422.

[26]

Muhmed SA, Jaafar J, Daud SS, Hanifah MFR, Purwanto M, Othman MHD, et al. Improvement in properties of nanocrystalline cellulose/poly (vinylidene fluoride) nanocomposite membrane for direct methanol fuel cell application. J Environ Chem Eng 2021;9:105577. https://doi.org/10.1016/j.jece.2021.105577.

[27]

Wang S, Lin Y, Yang J, Shi L, Yang G, Zhuang X, et al. UiO-66-NH2 functionalized cellulose nanofibers embedded in sulfonated polysulfone as proton exchange membrane. Int J Hydrogen Energy 2021;46:19106-15. https://doi.org/10.1016/j.ijhydene.2021.03.033.

[28]

Vilela C, Silva ACQ, Domingues EM, Gonçalves G, Martins MA, Figueiredo FML, et al. Conductive polysaccharides-based proton-exchange membranes for fuel cell applications: the case of bacterial cellulose and fucoidan. Carbohydr Polym 2020;230:115604. https://doi.org/10.1016/j.carbpol.2019.115604.

[29]

Aburabie J, Lalia B, Hashaikeh R. Proton conductive, low methanol crossover cellulose-based membranes. Membranes 2021;11:539. https://doi.org/10.3390/membranes11070539.

[30]

Gondhalekar SC, Pawar PJ, Dhumal SS, Thakre S. Fate of CS2 in viscose process: a chemistry perspective. Cellulose 2022;29:1451-61. https://doi.org/10.1007/s10570-021-04398-1.

[31]

Zhou T, Song F, He X, Xie K. Dyeing polyvinyl alcohol membrane with low-temperature reactive dye X-2R as a new type of proton-exchange membrane for fuel cells. Solid State Ionics 2015;282:18-25. https://doi.org/10.1016/j.ssi.2015.09.013.

[32]

Zhou T, Li Y, Wang W, He L, Cai L, Zeng C. Application of a novel PVA-based proton exchange membrane modified by reactive black KN-B for low-temperature fuel cells. Int J Electrochem Sci 2019:8514-31. https://doi.org/10.20964/2019.09.16.

[33]

Azad H, Mohsennia M, Cheng C, Amini A. Cross-linked poly(vinyl butyral)/amine-functionalized polyacrylonitrile adsorptive membrane nano-composited with CeO2 nanoparticles for simultaneous aqueous removal of heavy metals and cefotaxime. Chem Eng J 2022;435:134849. https://doi.org/10.1016/j.cej.2022.134849.

[34]

Ruhr D, John M, Reiche A. Determination of the effective degree of cross-linking of porous cellulose membranes cross-linked with bifunctional epoxides. Carbohydr Polym 2021;251:117043. https://doi.org/10.1016/j.carbpol.2020.117043.

[35]

Ji B, Zhao C, Yan K, Sun G. Effects of divalent anionic catalysts on cross-linking of cellulose with 1,2,3,4-butanetetracarboxylic acid. Carbohydr Polym 2018;181:292-9. https://doi.org/10.1016/j.carbpol.2017.10.081.

[36]

Seo JA, Kim JC, Koh JK, Ahn SH, Kim JH. Preparation and characterization of crosslinked cellulose/sulfosuccinic acid membranes as proton conducting electrolytes. Ionics 2009;15:555-60. https://doi.org/10.1007/s11581-009-0314-8.

[37]

Sriruangrungkamol A, Chonkaew W. Modification of nanocellulose membrane by impregnation method with sulfosuccinic acid for direct methanol fuel cell applications. Polym Bull 2021;78:3705-28. https://doi.org/10.1007/s00289-020-03289-y.

[38]

Madih K, El-Shazly AH, Elkady MF, Aziz AN, Youssef ME, Khalifa RE. A facile synthesis of cellulose acetate reinforced graphene oxide nanosheets as proton exchange membranes for fuel cell applications. J Saudi Chem Soc 2022;26:101435. https://doi.org/10.1016/j.jscs.2022.101435.

[39]

Bagus Pambudi A, Priyangga A, Hartanto D, Atmaja L. Fabrication and characterization of modified microcrystalline cellulose membrane as proton exchange membrane for direct methanol fuel cell. Mater Today Proc 2021;46:1855-9. https://doi.org/10.1016/j.matpr.2021.01.431.

[40]

Guccini V, Carlson A, Yu S, Lindbergh G, Lindström RW, Salazar-Alvarez G. Highly proton conductive membranes based on carboxylated cellulose nanofibres and their performance in proton exchange membrane fuel cells. J Mater Chem 2019;7:25032-9. https://doi.org/10.1039/C9TA04898G.

[41]

Bayer T, Cunning BV, Selyanchyn R, Nishihara M, Fujikawa S, Sasaki K, et al. High temperature proton conduction in nanocellulose membranes: paper fuel cells. Chem Mater 2016;28:4805-14. https://doi.org/10.1021/acs.chemmater.6b01990.

[42]

Pan M, Pan C, Li C, Zhao J. A review of membranes in proton exchange membrane fuel cells: transport phenomena, performance and durability. Renew Sustain Energy Rev 2021;141:110771. https://doi.org/10.1016/j.rser.2021.110771.

[43]

Dai C-A, Liu C-P, Lee Y-H, Chang C-J, Chao C-Y, Cheng Y-Y. Fabrication of novel proton exchange membranes for DMFC via UV curing. J Power Sources 2008;177:262-72. https://doi.org/10.1016/j.jpowsour.2007.11.097.

[44]

Zhu H, Lin W, Li Q, Hu Y, Guo S, Wang C, et al. Bipyridinium-based ionic covalent triazine frameworks for CO2, SO2, and NO capture. ACS Appl Mater Interfaces 2020;12:8614-21. https://doi.org/10.1021/acsami.9b15903.

[45]

Gu J, Shao P, Luo L, Wang Y, Zhao T, Yang C, et al. Microporous triazine-based ionic hyper-crosslinked polymers for efficient and selective separation of H2S/CH4/N2. Separ Purif Technol 2022;285:120377. https://doi.org/10.1016/j.seppur.2021.120377.

[46]

Jiang W, Wang W, Pan B, Zhang Q, Zhang W, Lv L. Facile fabrication of magnetic chitosan beads of fast kinetics and high capacity for copper removal. ACS Appl Mater Interfaces 2014;6:3421-6. https://doi.org/10.1021/am405562c.

[47]

Chen B, Long F, Chen S, Cao Y, Pan X. Magnetic chitosan biopolymer as a versatile adsorbent for simultaneous and synergistic removal of different sorts of dyestuffs from simulated wastewater. Chem Eng J 2020;385:123926. https://doi.org/10.1016/j.cej.2019.123926.

[48]

Li K, Li P, Cai J, Xiao S, Yang H, Li A. Efficient adsorption of both methyl orange and chromium from their aqueous mixtures using a quaternary ammonium salt modified chitosan magnetic composite adsorbent. Chemosphere 2016;154:310-8. https://doi.org/10.1016/j.chemosphere.2016.03.100.

[49]

Paul PK, Yadav M. Investigation on corrosion inhibition and adsorption mechanism of triazine-thiourea derivatives at mild steel/HCl solution interface: electrochemical, XPS, DFT and Monte Carlo simulation approach. J Electroanal Chem 2020;877:114599. https://doi.org/10.1016/j.jelechem.2020.114599.

[50]

Siow KS, Britcher L, Kumar S, Griesser HJ. QCM-D and XPS study of protein adsorption on plasma polymers with sulfonate and phosphonate surface groups. Colloids Surf B Biointerfaces 2019;173:447-53. https://doi.org/10.1016/j.colsurfb.2018.10.015.

[51]

Mikhlin Y, Karacharov A, Tomashevich Y, Shchukarev A. Interaction of sphalerite with potassium n-butyl xanthate and copper sulfate solutions studied by XPS of fast-frozen samples and zeta-potential measurement. Vacuum 2016;125:98-105. https://doi.org/10.1016/j.vacuum.2015.12.006.

[52]

Zhou T, Cai L, Qiao J. Application of a novel PUB enhanced semi-interpenetrating chitosan-based anion exchange membrane. Int J Energy Res 2020;44:1607-23. https://doi.org/10.1002/er.4972.

[53]

Guo Z, Chen J, Byun JJ, Perez–Page M, Ji Z, Zhao Z, et al. Insights into the performance and degradation of polybenzimidazole/muscovite composite membranes in high–temperature proton exchange membrane fuel cells. J Membr Sci 2022;641:119868. https://doi.org/10.1016/j.memsci.2021.119868.

[54]

Zhou T, Xu H, Cai L, Wang J. Construction of anti-flame network structures in cotton fabrics with pentaerythritol phosphate urea salt and nano SiO2. Appl Surf Sci 2020;507:145175. https://doi.org/10.1016/j.apsusc.2019.145175.

[55]

Etuk SS, Lawan I, Zhou W, Jiang Y, Zhang Q, Wei X, et al. Synthesis and characterization of triazole based sulfonated nanocrystalline cellulose proton conductor. Cellulose 2020;27:3197-209. https://doi.org/10.1007/s10570-020-02981-6.

[56]

Hu W, Yang X, Hou X, Zhao Q, Liu B, Sun Z, et al. Novel nanocomposite PEM membranes with continuous proton transportation channel and reinforcing network formed by electrospinning solution casting method. Macromol Mater Eng 2020;305:1900388. https://doi.org/10.1002/mame.201900388.

[57]

Gong J, Li J, Xu J, Xiang Z, Mo L. Research on cellulose nanocrystals produced from cellulose sources with various polymorphs. RSC Adv 2017;7:33486-93. https://doi.org/10.1039/C7RA06222B.

[58]

Segal L, Creely JJ, Martin AE, Conrad CM. An empirical method for estimating the degree of crystallinity of native cellulose using the X-ray diffractometer. Textil Res J 1959;29:786-94. https://doi.org/10.1177/004051755902901003.

[59]

Leng E, Zhang Y, Peng Y, Gong X, Mao M, Li X, et al. In situ structural changes of crystalline and amorphous cellulose during slow pyrolysis at low temperatures. Fuel 2018;216:313-21. https://doi.org/10.1016/j.fuel.2017.11.083.

[60]

Rosyida VT, Indrianingsih AW, Hayati SN, Apriyana W. The effect of different drying temperature on crystallinity and morphology structure of bacterial cellulose. IOP Conf Ser Earth Environ Sci 2020;462:012050. https://doi.org/10.1088/1755-1315/462/1/012050.

[61]

Yamane C, Miyamoto H, Hayakawa D, Ueda K. Folded-chain structure of cellulose II suggested by molecular dynamics simulation. Carbohydr Res 2013;379:30-7. https://doi.org/10.1016/j.carres.2013.06.012.

[62]

Bayer T, Bishop SR, Nishihara M, Sasaki K, Lyth SM. Characterization of a graphene oxide membrane fuel cell. J Power Sources 2014;272:239-47. https://doi.org/10.1016/j.jpowsour.2014.08.071.

[63]

Bayer T, Cunning BV, Šmíd B, Selyanchyn R, Fujikawa S, Sasaki K, et al. Spray deposition of sulfonated cellulose nanofibers as electrolyte membranes in fuel cells. Cellulose 2021;28:1355-67. https://doi.org/10.1007/s10570-020-03593-w.

[64]

Khalifa RE, Omer AM, Abd Elmageed MH, Mohy Eldin MS. Titanium dioxide/phosphorous-functionalized cellulose acetate nanocomposite membranes for DMFC applications: enhancing properties and performance. ACS Omega 2021;6:17194-202. https://doi.org/10.1021/acsomega.1c00568.

[65]

Roman M, Winter WT. Effect of sulfate groups from sulfuric acid hydrolysis on the thermal degradation behavior of bacterial cellulose. Biomacromolecules 2004;5:1671-7. https://doi.org/10.1021/bm034519+.

[66]

Song F, Fu Y, Gao Y, Li J, Qiao J, Zhou X-D, et al. Novel alkaline anion-exchange membranes based on chitosan/ethenylmethylimidazoliumchloride polymer with ethenylpyrrolidone composites for low temperature polymer electrolyte fuel cells. Electrochim Acta 2015;177:137-44. https://doi.org/10.1016/j.electacta.2015.02.015.

[67]

Wang B, Zhu Y, Zhou T, Xie K. Synthesis and properties of chitosan membranes modified by reactive cationic dyes as a novel alkaline exchange membrane for low temperature fuel cells. Int J Hydrogen Energy 2016;41:18166-77. https://doi.org/10.1016/j.ijhydene.2016.07.069.

[68]

Srinophakun P, Thanapimmetha A, Plangsri S, Vetchayakunchai S, Saisriyoot M. Application of modified chitosan membrane for microbial fuel cell: roles of proton carrier site and positive charge. J Clean Prod 2017;142:1274-82. https://doi.org/10.1016/j.jclepro.2016.06.153.

[69]

Zhou T, Zhang J, Qiao J, Liu L, Jiang G, Zhang J, et al. High durable poly(vinyl alcohol)/Quaterized hydroxyethylcellulose ethoxylate anion exchange membranes for direct methanol alkaline fuel cells. J Power Sources 2013;227:291-9. https://doi.org/10.1016/j.jpowsour.2012.11.041.

[70]

Gadim TDO, Loureiro FJA, Vilela C, Rosero-Navarro N, Silvestre AJD, Freire CSR, et al. Protonic conductivity and fuel cell tests of nanocomposite membranes based on bacterial cellulose. Electrochim Acta 2017;233:52-61. https://doi.org/10.1016/j.electacta.2017.02.145.

[71]

Jiang G-p, Zhang J, Qiao J-l, Jiang Y-m, Zarrin H, Chen Z, et al. Bacterial nanocellulose/Nafion composite membranes for low temperature polymer electrolyte fuel cells. J Power Sources 2015;273:697-706. https://doi.org/10.1016/j.jpowsour.2014.09.145.

[72]

Wang L, Zuo X, Raut A, Isseroff R, Xue Y, Zhou Y, et al. Operation of proton exchange membrane (PEM) fuel cells using natural cellulose fiber membranes. Sustain Energy Fuels 2019;3:2725-32. https://doi.org/10.1039/C9SE00381A.

[73]

Lin CW, Liang SS, Chen SW, Lai JT. Sorption and transport properties of 2-acrylamido-2-methyl-1-propanesulfonic acid-grafted bacterial cellulose membranes for fuel cell application. J Power Sources 2013;232:297-305. https://doi.org/10.1016/j.jpowsour.2013.01.047.

[74]

Barjola A, Reyes-Rodríguez JL, Solorza-Feria O, Giménez E, Compañ V. Novel SPEEK-ZIF-67 proton exchange nanocomposite membrane for PEMFC application at intermediate temperatures. Ind Eng Chem Res 2021;60:9107-18. https://doi.org/10.1021/acs.iecr.1c01780.

[75]

Wei Y, Qian T, Liu J, Guo X, Gong Q, Liu Z, et al. Novel composite Nafion membranes modified with copper phthalocyanine tetrasulfonic acid tetrasodium salt for fuel cell application. J Materiomics 2019;5:252-7. https://doi.org/10.1016/j.jmat.2019.01.006.

[76]

Du J, Lin H, Guo W, Zhang F, Qu F, Wen C, et al. Phosphonic acid loaded covalent imine networks for proton-conducting membranes. Polymer 2020;201:122632. https://doi.org/10.1016/j.polymer.2020.122632.

[77]

Geng H, Wu H, Li J, He X, Shi B, Fan C, et al. Preparing proton exchange membranes via incorporating silica-based nanoscale ionic materials for the enhanced proton conductivity. Solid State Ionics 2020;349:115294. https://doi.org/10.1016/j.ssi.2020.115294.

Enhanced proton conductivity of viscose-based membranes <i>via</i> ionic modification and dyeing processes for fuel cell applications (2024)

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