Side-chain structural engineering on poly(terphenyl piperidinium) anion exchange membrane for water electrolysers

Liu, Lei; Bai, Li; Liu, Zhiru; Miao, Shasha; Pan, Ji Sheng; Shen, Lisha; Shi, Yan; Li, Nanwen

doi:10.1016/j.memsci.2022.121135

Cited by 62 publications

(82 citation statements)

References 60 publications

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“…At present, the commercial Zirfon PERL composite membrane has been successfully used in alkaline liquid water electrolysis, which consists of hydrophilic ZrO 2 nanoparticles (85 wt%) and a polysulfone backbone with an average pore size of 150 nm. There are two regions in the porous Zirfon PERL membrane: (1) interconnected ZrO 2 pores (B30 nm); 165 2, 164 3, 166 4, 167 5, 168 6, 163 7, 169 8, 170 9, 39 10 151 , 11, 171 12, 172 13, 19 14, 173 15, 174 16, 69 17, 175 18, 176 19, 51 20, 177 21, 178 22, 179 23, 26 24, 180 25, 181 26, 182 27, 183 28, 67 29, 184 30, 185 31, 186 32, 74 33, 187 34, 29 35, 46 36, 36 37, 188 38, 189 39, 190 40, 54 41, 191 42, 192 43, 27 44, 47 45, 34 46, 193 47, 76 48, 49 49, 68…”

Section: Hydroxide Ion Conductive Membranesmentioning

confidence: 99%

“…24a). 185 The authors replaced the alkyl side chains with hydrophilic N -oligo (ethylene glycol) (OEG) side-chains pendant to the piperidinium groups (PTP-OEG), inducing microphase separation for fast hydroxide transport. Utilizing the PTP-OEG AEM, the constructed AEMWE with IrO 2 and PtRu/C electrocatalysts was tested by a high current density of 5.9 A cm −2 at 2.2 V (Fig.…”

Section: Overall Design Of Meas Towards High-performance Alkaline Wat...mentioning

confidence: 99%

“…(d) Electrolysis performance of representative alkaline water electrolysis fed with 0.1 M KOH or pure water. References for data points for (a): 1,165 2,164 3, 166 4,167 5,168 6,163 7,169 8,170 9, 39 10 151 , 11,171 12,172 13,19 14,173 15,174 16,69 17,175 18,176 19,51 20,177 21,178 22,179 23,26 24,180 25,181 26,182 27,183 28,67 29,184 30,185 31,186 32,74 33,187 34,29 35,46 36,36 37,188 38,189 39,190 40,54 41,191 42,192 43,27 44,47 45,34 46,193 47,76 48,49 49,68 50,194 51,38 52,52 53,…”

mentioning

confidence: 99%

“…(c): 1,26 2,180 3,204 4,93 5,205 6,54 7,206 8,86 9,207 10,183 11,74 12,29 13,208 14,181 15,184 16,185 17,186 18,187 19,209 20,36 21,94 22,210 23,188 24,211 25,190 26,191 27 212. (d): 1,26 2,59 3,213 4,214 5,215 6,216 7,217 8,218 9,219 10,147 11,220 12,221 13,222 14,223 15,29 16,67 17,185 18,94 19,224 20,210 21,225 22,226 23,227 24,228 ...…”

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confidence: 99%

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Key components and design strategy of the membrane electrode assembly for alkaline water electrolysis

Wan

et al. 2023

Energy Environ. Sci.

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Section: Hydroxide Ion Conductive Membranesmentioning

confidence: 99%

Section: Overall Design Of Meas Towards High-performance Alkaline Wat...mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Key components and design strategy of the membrane electrode assembly for alkaline water electrolysis

Wan

et al. 2023

Energy Environ. Sci.

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“…The key requirements for AEMs are high ionic conductivity, good mechanical strength, and superior alkaline stability. [8][9][10][11] High ion exchange capacity (IEC) is generally required for high ionic conductivity, but high IEC usually tends to trade-off with mechanical strength and alkaline stability due to high hydration. 12 Previous studies have investigated ammonium-functionalized polyphenyleneoxide (PPO) and poly(ether ether ketone) (PEEK) based membranes, which are vulnerable to main-chain scission due to cleavage of aryl ether groups during operation.…”

Section: Introductionmentioning

confidence: 99%

Polydiallylammonium interpenetrating cationic network ion-solvating membranes for anion exchange membrane water electrolyzers

et al. 2023

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Poly(aryl piperidinium)‐Based AEMs Utilizing Spirobifluorene as a Branching Agent

Ryoo,

Shin,

Song

et al. 2024

Adv Funct Materials

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The high‐performance anion exchange membranes (AEMs) are developed by incorporating 9,9′‐spirobifluorene as a 3D branching agent, addressing the common trade‐off between ion conductivity and dimensional/mechanical stability. By fine‐tuning the ratio of terphenyl to biphenyl and the amount of the branching agent, the AEM is refined, achieving high conductivity (≈190 mS cm−1 at 80 °C in 1 m KOH) with decent dimensional/mechanical properties, comparable to the recently reported state‐of‐the‐art membranes. Investigations using gas pycnometer and atomic force microscopy demonstrated that spirobifluorene enhances the fractional free volume around the membrane's backbone and more precisely modulates the separation between hydrophobic and hydrophilic domains, thus boosting both ion conductivity and mechanical stability. This membrane also displayed excellent chemical stability, with negligible degradation at 80 °C in 1 m KOH over 1,000 h. With such a membrane, an excellent cell performance is achieved, with a current density of 11.2 A cm−2 at 80 °C and 2 V in 1 m KOH, and 1.8 A cm−2 at 80 °C and 2 V in pure water conditions. The in situ membrane stability test, conducted at a constant current density of 1 A cm−2 for 500 h, showed no significant degradation.

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Side-chain structural engineering on poly(terphenyl piperidinium) anion exchange membrane for water electrolysers

Cited by 62 publications

References 60 publications

Key components and design strategy of the membrane electrode assembly for alkaline water electrolysis

Key components and design strategy of the membrane electrode assembly for alkaline water electrolysis

Polydiallylammonium interpenetrating cationic network ion-solvating membranes for anion exchange membrane water electrolyzers

Poly(aryl piperidinium)‐Based AEMs Utilizing Spirobifluorene as a Branching Agent

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