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Ponomarev II, Volkova YA, Skupov KM, Vtyurina ES, Ponomarev II, Ilyin MM, Nikiforov RY, Alentiev AY, Zhigalina OM, Khmelenin DN, Strelkova TV, Modestov AD. Unique Self-Phosphorylating Polybenzimidazole of the 6F Family for HT-PEM Fuel Cell Application. Int J Mol Sci 2024; 25:6001. [PMID: 38892189 PMCID: PMC11172766 DOI: 10.3390/ijms25116001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
High-temperature polymer-electrolyte membrane fuel cells (HT-PEMFCs) are a very important type of fuel cells since they operate at 150-200 °C, making it possible to use hydrogen contaminated with CO. However, the need to improve the stability and other properties of gas-diffusion electrodes still impedes their distribution. Self-supporting anodes based on carbon nanofibers (CNF) are prepared using the electrospinning method from a polyacrylonitrile solution containing zirconium salt, followed by pyrolysis. After the deposition of Pt nanoparticles on the CNF surface, the composite anodes are obtained. A new self-phosphorylating polybenzimidazole of the 6F family is applied to the Pt/CNF surface to improve the triple-phase boundary, gas transport, and proton conductivity of the anode. This polymer coating ensures a continuous interface between the anode and proton-conducting membrane. The polymer is investigated using CO2 adsorption, TGA, DTA, FTIR, GPC, and gas permeability measurements. The anodes are studied using SEM, HAADF STEM, and CV. The operation of the membrane-electrode assembly in the H2/air HT-PEMFC shows that the application of the new PBI of the 6F family with good gas permeability as a coating for the CNF anodes results in an enhancement of HT-PEMFC performance, reaching 500 mW/cm2 at 1.3 A/cm2 (at 180 °C), compared with the previously studied PBI-O-PhT-P polymer.
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Affiliation(s)
- Igor I. Ponomarev
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova St., bld. 1, Moscow 119334, Russia; (I.I.P.); (Y.A.V.); (E.S.V.); (I.I.P.); (M.M.I.); (T.V.S.)
| | - Yulia A. Volkova
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova St., bld. 1, Moscow 119334, Russia; (I.I.P.); (Y.A.V.); (E.S.V.); (I.I.P.); (M.M.I.); (T.V.S.)
| | - Kirill M. Skupov
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova St., bld. 1, Moscow 119334, Russia; (I.I.P.); (Y.A.V.); (E.S.V.); (I.I.P.); (M.M.I.); (T.V.S.)
| | - Elizaveta S. Vtyurina
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova St., bld. 1, Moscow 119334, Russia; (I.I.P.); (Y.A.V.); (E.S.V.); (I.I.P.); (M.M.I.); (T.V.S.)
| | - Ivan I. Ponomarev
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova St., bld. 1, Moscow 119334, Russia; (I.I.P.); (Y.A.V.); (E.S.V.); (I.I.P.); (M.M.I.); (T.V.S.)
| | - Mikhail M. Ilyin
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova St., bld. 1, Moscow 119334, Russia; (I.I.P.); (Y.A.V.); (E.S.V.); (I.I.P.); (M.M.I.); (T.V.S.)
| | - Roman Y. Nikiforov
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Av., Moscow 119991, Russia; (R.Y.N.); (A.Y.A.)
| | - Alexander Y. Alentiev
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Av., Moscow 119991, Russia; (R.Y.N.); (A.Y.A.)
| | - Olga M. Zhigalina
- A.V. Shubnikov Institute of Crystallography of Federal Scientific Research Centre “Crystallography and Photonics”of Russian Academy of Sciences, 59 Leninsky Av., Moscow 119333, Russia; (O.M.Z.); (D.N.K.)
| | - Dmitry N. Khmelenin
- A.V. Shubnikov Institute of Crystallography of Federal Scientific Research Centre “Crystallography and Photonics”of Russian Academy of Sciences, 59 Leninsky Av., Moscow 119333, Russia; (O.M.Z.); (D.N.K.)
| | - Tatyana V. Strelkova
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova St., bld. 1, Moscow 119334, Russia; (I.I.P.); (Y.A.V.); (E.S.V.); (I.I.P.); (M.M.I.); (T.V.S.)
| | - Alexander D. Modestov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31 Leninsky Av., bld. 4., Moscow 119071, Russia
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Wang Q, Wang L, Zhang M, Peng Z, Lu Y, Lv P, Yang J. Preparation of novel membranes with multiple hydrogen bonding sites and π-conjugated structure for high temperature proton exchange membrane fuel cells. Chem Commun (Camb) 2024; 60:5318-5321. [PMID: 38666525 DOI: 10.1039/d4cc01089b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2024]
Abstract
A novel poly(dibenzofuran isatin) (PBFI) with π conjugated structure was synthesized. Through the facile ring-opening reaction, flexible and hydrophilic side chains with hydroxyl and quaternary ammounium groups were grafted into PBFI. Obtained PBFI-x%GTA membranes with twisted polymer structure and multiple hydrogen bonding sites displayed high HT-PEMFC performance.
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Affiliation(s)
- Qian Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Lele Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Meichen Zhang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Zhen Peng
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Yao Lu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Peiru Lv
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Jingshuai Yang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
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Adzhieva OA, Gringolts ML, Denisova YI, Shandryuk GA, Litmanovich EA, Nikiforov RY, Belov NA, Kudryavtsev YV. Effect of Chain Structure on the Various Properties of the Copolymers of Fluorinated Norbornenes with Cyclooctene. Polymers (Basel) 2023; 15:polym15092157. [PMID: 37177303 PMCID: PMC10180767 DOI: 10.3390/polym15092157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
Fluorinated polymers are attractive due to their special thermal, surface, gas separation, and other properties. In this study, new diblock, multiblock, and random copolymers of cyclooctene with two fluorinated norbornenes, 5-perfluorobutyl-2-norbornene and N-pentafluorophenyl-exo-endo-norbornene-5,6-dicarboximide, are synthesized by ring-opening metathesis copolymerization and macromolecular cross-metathesis in the presence of the first- to third-generation Grubbs' Ru-catalysts. Their thermal, surface, bulk, and solution characteristics are investigated and compared using differential scanning calorimetry, water contact angle measurements, gas permeation, and light scattering, respectively. It is demonstrated that they are correlated with the chain structure of the copolymers. The properties of multiblock copolymers are generally closer to those of diblock copolymers than of random ones, which can be explained by the presence of long blocks capable of self-organization. In particular, diblock and multiblock fluorine-imide-containing copolymers show a tendency to form micelles in chloroform solutions well below the overlap concentration. The results obtained may be of interest to a wide range of researchers involved in the design of functional copolymers.
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Affiliation(s)
- Olga A Adzhieva
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia
| | - Maria L Gringolts
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia
| | - Yulia I Denisova
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia
| | - Georgiy A Shandryuk
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia
| | - Ekaterina A Litmanovich
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1, Bld. 3, 119991 Moscow, Russia
| | - Roman Yu Nikiforov
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia
| | - Nikolay A Belov
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia
| | - Yaroslav V Kudryavtsev
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, 119991 Moscow, Russia
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071 Moscow, Russia
- ESPCI Paris, PSL Research University, 75005 Paris, France
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Cetina-Mancilla E, Reyes-García GA, Rodríguez-Molina M, Zolotukhin MG, Vivaldo-Lima E, Ortencia González-Díaz M, Ramos-Ortiz G. Room temperature, simple and efficient synthesis and functionalization of aromatic poly(arylene sulfide)s, poly(arylene sulfoxide)s and poly(arylene sulfone)s. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Agaliotis EM, Ake-Concha BD, May-Pat A, Morales-Arias JP, Bernal C, Valadez-Gonzalez A, Herrera-Franco PJ, Proust G, Koh-Dzul JF, Carrillo JG, Flores-Johnson EA. Tensile Behavior of 3D Printed Polylactic Acid (PLA) Based Composites Reinforced with Natural Fiber. Polymers (Basel) 2022; 14:polym14193976. [PMID: 36235924 PMCID: PMC9570513 DOI: 10.3390/polym14193976] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/10/2022] [Accepted: 09/17/2022] [Indexed: 01/21/2023] Open
Abstract
Natural fiber-reinforced composite (NFRC) filaments for 3D printing were fabricated using polylactic acid (PLA) reinforced with 1–5 wt% henequen flour comprising particles with sizes between 90–250 μm. The flour was obtained from natural henequen fibers. NFRCs and pristine PLA specimens were printed with a 0° raster angle for tension tests. The results showed that the NFRCs’ measured density, porosity, and degree of crystallinity increased with flour content. The tensile tests showed that the NFRC Young’s modulus was lower than that of the printed pristine PLA. For 1 wt% flour content, the NFRCs’ maximum stress and strain to failure were higher than those of the printed PLA, which was attributed to the henequen fibers acting as reinforcement and delaying crack growth. However, for 2 wt% and higher flour contents, the NFRCs’ maximum stress was lower than that of the printed PLA. Microscopic characterization after testing showed an increase in voids and defects, with the increase in flour content attributed to particle agglomeration. For 1 wt% flour content, the NFRCs were also printed with raster angles of ±45° and 90° for comparison; the highest tensile properties were obtained with a 0° raster angle. Finally, adding 3 wt% content of maleic anhydride to the NFRC with 1 wt% flour content slightly increased the maximum stress. The results presented herein warrant further research to fully understand the mechanical properties of printed NFRCs made of PLA reinforced with natural henequen fibers.
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Affiliation(s)
- Eliana M. Agaliotis
- Facultad de Ingeniería, Universidad de Buenos Aires, Av. Las Heras 2214, Buenos Aires C1127AAR, Argentina
- CONICET-Universidad de Buenos Aires, Instituto de Tecnología en Polímeros y Nanotecnología (ITPN), Av. Las Heras 2214, Buenos Aires C1127AAR, Argentina
| | - Baltazar D. Ake-Concha
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43 No. 130 Col. Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico
| | - Alejandro May-Pat
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43 No. 130 Col. Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico
| | - Juan P. Morales-Arias
- Facultad de Ingeniería, Universidad ECCI, Bogotá 111321, Localidad de Teusaquillo, Colombia
| | - Celina Bernal
- Facultad de Ingeniería, Universidad de Buenos Aires, Av. Las Heras 2214, Buenos Aires C1127AAR, Argentina
- CONICET-Universidad de Buenos Aires, Instituto de Tecnología en Polímeros y Nanotecnología (ITPN), Av. Las Heras 2214, Buenos Aires C1127AAR, Argentina
| | - Alex Valadez-Gonzalez
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43 No. 130 Col. Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico
| | - Pedro J. Herrera-Franco
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43 No. 130 Col. Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico
| | - Gwénaëlle Proust
- School of Civil Engineering, The University of Sydney, Sydney, NSW 2006, Australia
- Sydney Manufacturing Hub, The University of Sydney, Sydney, NSW 2006, Australia
| | - J. Francisco Koh-Dzul
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43 No. 130 Col. Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico
| | - Jose G. Carrillo
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Calle 43 No. 130 Col. Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico
- Correspondence: (J.G.C.); (E.A.F.-J.)
| | - Emmanuel A. Flores-Johnson
- Australian Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia
- School of Mechanical and Manufacturing Engineering, University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
- Correspondence: (J.G.C.); (E.A.F.-J.)
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