Chemically stable poly(meta-terphenyl piperidinium) with highly conductive side chain for alkaline fuel cell membranes

Lu, Chuanrui; Long, Chuan; Li, Yunxi; Li, Ziming; Hong, Zhu

doi:10.1016/j.memsci.2019.117797

Cited by 87 publications

(46 citation statements)

References 59 publications

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“…Polarization and power density curve of a single cell using QAFPK-1-6-E and QAFPK-1-6-C at 50 °C (a). The comparison of the properties of electrospun polyketone-based AEMs and other literature work (b). ,,,,,,,− The red shaded region represents the cross-linked structure in the AEM molecular structure. The blue shaded region indicates that the fiber structure exists in the AEM.…”

Section: Resultsmentioning

confidence: 99%

Electrospun Modified Polyketone-Based Anion Exchange Membranes with High Ionic Conductivity and Robust Mechanical Properties

Zhou

Bao

Liu

et al. 2021

ACS Appl. Energy Mater.

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It is still a significant challenge to rationally design and delicately process or fabricate anion exchange membranes (AEMs) with high ionic conductivity, good mechanical properties, and sufficient alkaline stability. Here, a polyketone (PK) resinbased AEM was synthesized via the Paal−Knorr reaction and quaternary ammonium reaction, and then processed by electrospinning and hot pressing technologies. In contrast to a quaternized functional polyketone-based polyelectrolyte (QAFPK) fabricated by casting, the electrospun QAFPK shows higher hydroxide conductivity and robust mechanical properties. QAFPK-1-6-E realizes a hydroxide conductivity of 181 mS/cm at 80 °C and a tensile strength of 54 MPa. The microphase structure characterization indicates that the electrospinning process can induce the formation of an excellent ion-conducting structure. The electrospun PKbased AEM displays great application potential in a variety of electrochemical devices under alkaline conditions, such as alkaline anion exchange membrane fuel cells (AAEMFCs).

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Section: Resultsmentioning

confidence: 99%

Electrospun Modified Polyketone-Based Anion Exchange Membranes with High Ionic Conductivity and Robust Mechanical Properties

Zhou

Bao

Liu

et al. 2021

ACS Appl. Energy Mater.

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show abstract

“…Water uptake is therefore another important parameter in regard to membrane employment. [141][142][143][144] Reviews on AMFC properties have been widely documented. 140,[145][146][147] AMFCs typically operate at a temperature that is determined by the durability of the alkaline membrane.…”

Section: Choice Of Electrolyte For Ammonia-fed Amfcmentioning

confidence: 99%

“…149 Great efforts have been devoted towards synthesising AEMs with alkaline stability at 80 o C or higher. 142,143,145,150 These membranes are typically designed based on two distinctive features: a polymer backbone and an ion conductive moiety. 151 Wang et al reported the synthesis of a poly(aryl piperidinium) (PAP) membrane and showed a steady increase in OHconductivity across the membrane as temperature was increased.…”

Section: Choice Of Electrolyte For Ammonia-fed Amfcmentioning

confidence: 99%

Recent progress in ammonia fuel cells and their potential applications

2021

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“…Among them, PEMFCs have been applied in the fields of portable generators and automobiles due to their advantages of high energy conversion efficiency, no pollution, and low working noise. [5,6] However, the use of precious metal catalyst Pt increases its cost, which limits the wide application of PEMFCs. [7] In comparison, due to the good compatibility with non-precious metal catalysts (such as Fe, Co, Ni, etc.)…”

Section: Introductionmentioning

confidence: 99%

Construction of Quaternized Polysulfone/Polyquaternium‐10 Anion Exchange Membrane with Semi‐Interpenetrating Network for Alkaline Fuel Cell

Yang

Zhang

Zhao

et al. 2021

Macro Materials & Eng

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The quaternized polysulfone/polyquaternium-10 (QPSU/PQ-10) anion exchange membranes (AEMs) with a semi-interpenetrating network are prepared by the simple solution casting method. The effects of the mass ratio of chloromethylated polysulfone (CMPSU) to PQ-10 and the molar ratio of quaternized chloromethyl (QCM) to cross-linked chloromethyl (CCM) on the performance of AEM are systematically investigated. The results show that the introduction of PQ-10 endows the QPSU/PQ-10 AEM with excellent mechanical performance. More specifically, the QPSU/PQ-10 AEM has moderate water uptake, swelling ratio, and ion exchange capacity (IEC) at an appropriate composition ratio and crosslinking degree. In particular, the tensile strength and elongation at break of the QP0.5-1 membrane with the optimal composition ratio and crosslinking degree are 23.63 MPa and 20.07%, respectively; and its ion conductivity is up to 69.91 mS cm −1 at 80 °C. Furthermore, the peak power density of the single fuel cell assembled from the QP0.5-1 membrane is 75.64 mW cm −2 at 60 °C. Herein, the QPSU/PQ-10 AEM has good thermal oxidation stability, mechanical properties, and ion conductivity, highlighting the potential of bio-based PQ-10 as an ion-conducting functional molecule in AEMs.

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Chemically stable poly(meta-terphenyl piperidinium) with highly conductive side chain for alkaline fuel cell membranes

Cited by 87 publications

References 59 publications

Electrospun Modified Polyketone-Based Anion Exchange Membranes with High Ionic Conductivity and Robust Mechanical Properties

Electrospun Modified Polyketone-Based Anion Exchange Membranes with High Ionic Conductivity and Robust Mechanical Properties

Recent progress in ammonia fuel cells and their potential applications

Construction of Quaternized Polysulfone/Polyquaternium‐10 Anion Exchange Membrane with Semi‐Interpenetrating Network for Alkaline Fuel Cell

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