Construction of new transport channels by blending POM-based inorganic-organic complex into sulfonated poly(ether ketone sulfone) for proton exchange membrane fuel cells

Xu, Jingmei; Zhang, Zhenguo; Yang, Kai; He, Wenwen; Yang, Xudong; Du, Xinming; Meng, L.; Zhao, Pengyun; Wang, Zhe

doi:10.1016/j.memsci.2019.117711

Cited by 35 publications

(16 citation statements)

References 57 publications

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“…[48][49][50] Recently, the excellent proton conductivity, electrochemical stability, and water-retention ability of POMs have attracted special interest to develop POM-polymer composite electrolytes for proton conduction. [51][52][53][54][55][56][57][58][59][60][61] However, it is difficult to manipulate the distribution of POMs in polymer electrolytes to form well-connected proton conductive pathways, as the strong electrostatic interaction easily induces the disordered aggregation of POMs. Recently, Guiver and co-workers reported a breakthrough they obtained: one-dimensional (1D) POM-based protonconducting channels in a homopolymer electrolyte matrix through an external magnetic field alignment.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Polymer Composite Electrolytes with Self-Assembled Polyoxometalate Networks for Proton Conduction

Wang

Shang

et al. 2022

CCS Chem

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The key challenge for the use of polymer electrolytes is to realize a high ionic conductivity without scarifying their mechanical performance. Herein, we report a facile strategy to prepare a nanostructured polymer electrolyte with both high proton conductivity and high modulus, based on the electrostatic self-assembly of polyoxometalate cluster H 3 PW 12 O 40 (PW) and comb copolymer poly(ether-etherketone)-grafted-poly(vinyl pyrrolidone) (PEEK-g-PVP). The incorporation of protonic acid PW can enable the PEEK-g-PVP to be highly proton conductive and create flexible composite electrolyte membranes. Moreover, nanoscale phase separation between PEEK domains and PVP/PW domains spontaneously occurs in these membranes, forming a bicontinuous structure with three-dimensional (3D)-connected PW networks. Due to the dual role of PW networks as both proton transport pathways and mechanical enhancers, these membranes exhibit proton conductivities higher than 30 mS cm −1 and modulus over 4 GPa. Notably, the direct methanol fuel cells equipped with these membranes show good cell performance. Given the wide tunability of comb copolymers and polyoxometalates, this system can be extended to develop a variety of functional electrolyte materials, for example, the lithium-ion conductive electrolytes by using polyoxometalate-based lithium salts, which provides a promising platform to explore versatile electrolyte materials for energy and electronic applications.

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Section: Introductionmentioning

confidence: 99%

Nanostructured Polymer Composite Electrolytes with Self-Assembled Polyoxometalate Networks for Proton Conduction

Wang

Shang

et al. 2022

CCS Chem

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“…Water uptake and swelling ratio of SPAEKS membrane and H 6 Bi 12 O 16 -doped hybrid SPAEKS membranes were studied by the method similar to previous literature. 40 The formulas were as follows:…”

Section: Water Uptake and Swelling Ratio Measurementmentioning

confidence: 99%

“…The mechanical properties tests of SPAEKS membrane and H 6 Bi 12 O 16 -doped hybrid SPAEKS membranes were carried out according to the previous literature. 40 The samples were prepared in 50 × 5 mm and immersed in deionized water. The surfaces of these membranes were wiped with filter paper before testing.…”

Section: Mechanical Properties Testmentioning

confidence: 99%

Precise modification of poly(aryl ether ketone sulfone) proton exchange membranes with positively charged bismuth oxide clusters for high proton conduction performance

Yin

Zhang

et al. 2022

SusMat

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In the field of proton exchange membranes (PEMs), it is still a great challenge to explore new Nafion alternatives, maintaining the high proton conductivity and lowering the cost of practical application. In this work, a series of low sulfonated poly(aryl ether ketone sulfone) (SPAEKS) membranes hybridized by [Bi 6 O 5 (OH) 3 ] 2 (NO 3 ) 10 ⋅6H 2 O (H 6 Bi 12 O 16 ) have been successfully fabricated. When the doping amount of H 6 Bi 12 O 16 reaches 5 wt%, the DS15-Bi 12 -5 showing the best proton conductive ability and mechanical properties. The proton conductivity can achieve 72.8 mS⋅cm −1 at 80 • C and the tensile strength can reach 43.57 MPa. Confirmed by experimental data and activation energy (E a ) calculations, the existence of Bi cluster makes more hydrogen bonds, providing additional proton hopping sites and offers more proton transport vehicles, leading to a high proton conduction performance. This work proved that polyoxometalates (POMs) can replace the role of sulfonate groups in SPAEKS to a certain extent and work out the defects of high sulfonation, making a remarkable contribution to the practical application of low sulfonated SPAEKS.

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“…Numerous types of POM compositions with more intriguing and diversified structures have been shown by self-assembly of purely inorganic construction blocks and/or network bridging functions of organic ligands and metal ions due to the high activities of lacunary POM building blocks. For example, POM composite materials containing TMs, rare-earth ions (RE) replaced POMs, organic ligand, and heterometallic modified POMs, have been widely employed [1,8,9].…”

Section: Abstract a R T I C L E I N F O R M A T I O Nmentioning

confidence: 99%

Application of Polyoxometalate-based composites for sensor systems: A review

Khalilpour

Shafiee

Darbandi

et al. 2021

jcc

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Construction of new transport channels by blending POM-based inorganic-organic complex into sulfonated poly(ether ketone sulfone) for proton exchange membrane fuel cells

Cited by 35 publications

References 57 publications

Nanostructured Polymer Composite Electrolytes with Self-Assembled Polyoxometalate Networks for Proton Conduction

Nanostructured Polymer Composite Electrolytes with Self-Assembled Polyoxometalate Networks for Proton Conduction

Precise modification of poly(aryl ether ketone sulfone) proton exchange membranes with positively charged bismuth oxide clusters for high proton conduction performance

Application of Polyoxometalate-based composites for sensor systems: A review

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