Multiply quaternized poly(phenylene oxide)s bearing β-cyclodextrin pendants as assisting moiety for high-performance anion exchange membranes

Article Chemistry, Physical

Robust and durable poly(aryl-co-aryl piperidinium) reinforced membranes for alkaline membrane fuel cells

Chuan Hu et al.

Summary: High-performance poly(aryl-co-aryl piperidinium) reinforced membranes with excellent mechanical and chemical durability, gas tightness, and dimensional stability were reported for alkaline energy device applications.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

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Review Chemistry, Multidisciplinary

Anion-conducting polyelectrolytes for energy devices

Nanjun Chen et al.

Summary: This article summarizes the importance of anion-conducting polyelectrolytes (ACPs) in alkaline energy devices and provides a review on the progress of ACPs and their applications. It highlights the significance of durable cationic groups, promising polymer backbones, and state-of-the-art AEMs and ionomers in alkaline devices, and suggests that future research should focus on these aspects.

TRENDS IN CHEMISTRY (2022)

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Article Engineering, Chemical

Cation-dipole interaction that creates ordered ion channels in an anion exchange membrane for fast OH- conduction

Jianjun Zhang et al.

Summary: By introducing cation-dipole interactions, the self-assembly of ion-conducting channels in anion-exchange membranes can be enhanced, leading to higher ion conductivity and peak power density.

AICHE JOURNAL (2021)

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Article Chemistry, Multidisciplinary

Poly(Alkyl-Terphenyl Piperidinium) Ionomers and Membranes with an Outstanding Alkaline-Membrane Fuel-Cell Performance of 2.58 W cm-2

Nanjun Chen et al.

Summary: The study introduces aliphatic chain-containing PDTP copolymers to enhance the performance of AEMFCs. By reducing phenyl content in AEIs and improving mechanical properties in AEMs, PDTP materials exhibit excellent performance indicators such as mechanical properties, fuel barrier properties, ion conductivity, and stability.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Physical

Constructing micro-phase separation structure to improve the performance of anion-exchange membrane based on poly(aryl piperidinium) cross-linked membranes

Xinming Du et al.

Summary: By introducing a new preparation method, poly(biphenyl piperidine)s AEMs with micro-phase separation structures have been successfully constructed, improving alkaline stability while maintaining high ionic conductivity. The long-term performance under alkaline conditions is also excellent.

JOURNAL OF POWER SOURCES (2021)

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Review Multidisciplinary Sciences

Advancements in cathode catalyst and cathode layer design for proton exchange membrane fuel cells

Yanyan Sun et al.

Summary: The high platinum loadings at the cathodes of proton exchange membrane fuel cells significantly increase the cost of these clean energy conversion devices. Recent developments focus on low- and non-platinum-based cathode catalysts and catalyst layers to address this issue. Advances in nanotechnologies and material sciences have led to the discovery of promising materials, including platinum-based alloys and platinum-group-metal-free catalysts, for more cost-effective solutions in the future.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Multidisciplinary

3D-Zipped Interface: In Situ Covalent-Locking for High Performance of Anion Exchange Membrane Fuel Cells

Xian Liang et al.

Summary: By introducing a 3D-interfacial zipping concept, the challenges of mass transport resistances in polymer electrolyte membrane fuel cells are addressed, leading to enhanced power densities and long-term stabilities. The use of a bi-cationic quaternary-ammonium-based polyelectrolyte creates a covalently locked interface that prevents delamination without sacrificing fuel cell performance, as demonstrated in ex situ and in situ tests. A high power density of 1.5 W cm(-2) was achieved in a H-2/O-2 AEMFC test, with performance retention for at least 120 hours at a high current density of 0.6 A cm(-2).

ADVANCED SCIENCE (2021)

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Article Engineering, Chemical

Crucial role of side-chain functionality in anion exchange membranes: Properties and alkaline fuel cell performance

Xiaomeng Chu et al.

Summary: The functionality of side-chains plays a critical role in the performance of anion exchange membrane (AEM) materials, with longer side-chains enhancing alkali stability and conductivity, while side-chains containing triazole groups can promote the formation of hydrogen-bond networks to improve ion transport. The AEMs with longer side-chains showed excellent stability under alkaline conditions, and the AEMFC using these side-chain type AEMs achieved a peak power density of 141.3 mW cm(-2) at a current density of 320 mA cm(-2).

JOURNAL OF MEMBRANE SCIENCE (2021)

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Article Engineering, Chemical

The alkaline stability and fuel cell performance of poly(N-spirocyclic quaternary ammonium) ionenes as anion exchange membrane

Xiaoqin Qiao et al.

Summary: By designing and preparing polymer based on different spirocyclic ionenes, their stability in alkaline and fuel cells was investigated. Blending membranes using spirocyclic ionenes with phenyl or biphenyl rings showed good performance at high temperature, but unexpected degradation was observed in fuel cell device durability testing.

JOURNAL OF MEMBRANE SCIENCE (2021)

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Review Chemistry, Multidisciplinary

Durability of anion exchange membrane water electrolyzers

Dongguo Li et al.

Summary: This article explores the durability-limiting factors and mitigation strategies of AEMWEs under different operating modes, and connects the extended-term behaviors of AEMWEs at the single-cell level with the instability of single-cell components in terms of electrochemical, chemical, and mechanical aspects. The pros and cons of AEMWEs under these operation modes are discussed, along with providing directions for achieving long-lasting AEMWEs with highly efficient hydrogen production capabilities.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Chemistry, Physical

Flexibly crosslinked and post-morpholinium-functionalized poly(2,6-dimethyl-1,4-phenylene oxide) anion exchange membranes

Li Gao et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2020)

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Article Engineering, Chemical

Dual hydrophobic modifications toward anion exchange membranes with both high ion conductivity and excellent dimensional stability

Chuan Hu et al.

JOURNAL OF MEMBRANE SCIENCE (2020)

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Article Engineering, Chemical

Quaternized poly(2,6-dimethyl-1,4-phenylene oxide) anion exchange membranes with pendant sterically-protected imidazoliums for alkaline fuel cells

Weibing Sheng et al.

JOURNAL OF MEMBRANE SCIENCE (2020)

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Article Engineering, Chemical

Enhancement of the mechanical properties of anion exchange membranes with bulky imidazolium by thiol-ene crosslinking

Xiaojuan Zhang et al.

JOURNAL OF MEMBRANE SCIENCE (2020)

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Article Engineering, Chemical

Quaternized poly (2, 6-dimethyl-1, 4-phenylene oxide) anion exchange membranes based on isomeric benzyltrimethylammonium cations for alkaline fuel cells

Lei Liu et al.

JOURNAL OF MEMBRANE SCIENCE (2020)

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Article Chemistry, Physical

Achieving High-Performance and 2000 h Stability in Anion Exchange Membrane Fuel Cells by Manipulating Ionomer Properties and Electrode Optimization

Noor Ul Hassan et al.

ADVANCED ENERGY MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Poly(arylene ether sulfone) crosslinked networks with pillar[5]arene units grafted by multiple long-chain quaternary ammonium salts for anion exchange membranes

Jinwu Peng et al.

CHEMICAL COMMUNICATIONS (2020)

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Article Engineering, Chemical

Guiding the self-assembly of hyperbranched anion exchange membranes utilized in alkaline fuel cells

Qianqian Ge et al.

JOURNAL OF MEMBRANE SCIENCE (2019)

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Article Materials Science, Multidisciplinary

Towards the gemini cation anion exchange membranes by nucleophilic substitution reaction

Jianjun Zhang et al.

SCIENCE CHINA-MATERIALS (2019)

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Article Energy & Fuels

Poly(aryl piperidinium) membranes and ionomers for hydroxide exchange membrane fuel cells

Junhua Wang et al.

NATURE ENERGY (2019)

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Article Engineering, Chemical

Long-branched and densely functionalized anion exchange membranes for fuel cells

Jiafei Liu et al.

JOURNAL OF MEMBRANE SCIENCE (2019)

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Article Nanoscience & Nanotechnology

Construction of High-Performance, High-Temperature Proton Exchange Membranes through Incorporating SiO2 Nanoparticles into Novel Cross-linked Polybenzimidazole Networks

Xiaobai Li et al.

ACS APPLIED MATERIALS & INTERFACES (2019)

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Article Chemistry, Physical

Anion exchange membranes with rigid-side-chain symmetric piperazinium structures for fuel cell exceeding 1.2 W cm-2 at 60 °C

Li Gao et al.

JOURNAL OF POWER SOURCES (2019)

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Article Nanoscience & Nanotechnology

Ultrastable and High Ion-Conducting Polyelectrolyte Based on Six-Membered N-Spirocyclic Ammonium for Hydroxide Exchange Membrane Fuel Cell Applications

Nanjun Chen et al.

ACS APPLIED MATERIALS & INTERFACES (2018)

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Article Chemistry, Multidisciplinary

Tuning the properties of poly(2,6-dimethyl-1,4-phenylene oxide) anion exchange membranes and their performance in H-2/O-2 fuel cells

Lei Liu et al.

ENERGY & ENVIRONMENTAL SCIENCE (2018)

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Article Engineering, Chemical

N3-adamantyl imidazolium cations: Alkaline stability assessment and the corresponding comb-shaped anion exchange membranes

Jinlei Wang et al.

JOURNAL OF MEMBRANE SCIENCE (2018)

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Article Engineering, Chemical

Highly conductive anion exchange membranes with long flexible multication spacer

Ling Li et al.

JOURNAL OF MEMBRANE SCIENCE (2018)

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Article Engineering, Chemical

Hydrophilic side chain assisting continuous ion-conducting channels for anion exchange membranes

Yu Pan et al.

JOURNAL OF MEMBRANE SCIENCE (2018)

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Article Chemistry, Physical

Recyclable cross-linked anion exchange membrane for alkaline fuel cell application

Jianqiu Hou et al.

JOURNAL OF POWER SOURCES (2018)

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Article Chemistry, Physical

Exploring backbone-cation alkyl spacers for multi-cation side chain anion exchange membranes

Liang Zhu et al.

JOURNAL OF POWER SOURCES (2018)

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Article Chemistry, Physical

Dual hydrophobic grafted chains facilitating quaternary ammonium aggregations of hydroxide conducting polymers: a theoretical and experimental investigation

Jin Ran et al.

JOURNAL OF MATERIALS CHEMISTRY A (2018)

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Article Chemistry, Physical

Semi-interpenetrating polymer networks by azide-alkyne cycloaddition as novel anion exchange membranes

Jiandang Xue et al.

JOURNAL OF MATERIALS CHEMISTRY A (2018)

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Article Chemistry, Physical

A Highly Conductive and Mechanically Robust OH- Conducting Membrane for Alkaline Water Electrolysis

Ketian Zhang et al.

CHEMISTRY OF MATERIALS (2018)

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Article Chemistry, Multidisciplinary

Beneficial use of rotatable-spacer side-chains in alkaline anion exchange membranes for fuel cells

Yuan Zhu et al.

ENERGY & ENVIRONMENTAL SCIENCE (2018)

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Article Chemistry, Physical

Triblock copolymer anion exchange membranes bearing alkyl-tethered cycloaliphatic quaternary ammonium-head-groups for fuel cells

Chen Xiao Lin et al.

JOURNAL OF POWER SOURCES (2017)

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Article Polymer Science

Elastic Long-Chain Multication Cross-Linked Anion Exchange Membranes

Juanjuan Han et al.

MACROMOLECULES (2017)

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Article Polymer Science

Adamantammonium as a novel functional group for anion exchange membranes with excellent comprehensive performances

Jinlei Wang et al.

POLYMER (2017)

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Article Polymer Science

Facile synthesis and the properties of novel cardo poly(arylene ether sulfone)s with pendent cycloaminium side chains as anion exchange membranes

Feixiang Gong et al.

POLYMER CHEMISTRY (2017)

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Article Polymer Science

Synthesis of midblock-quaternized triblock copolystyrenes as highly conductive and alkaline-stable anion-exchange membranes

Meng Zhu et al.

POLYMER CHEMISTRY (2017)

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Article Chemistry, Physical

Highly anion conductive, alkyl-chain-grafted copolymers as anion exchange membranes for operable alkaline H2/O2 fuel cells

Cheng Yang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2017)

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Article Chemistry, Physical

Cationic Side-Chain Attachment to Poly(Phenylene Oxide) Backbones for Chemically Stable and Conductive Anion Exchange Membranes

Jing Pan et al.

CHEMISTRY OF MATERIALS (2017)

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Article Nanoscience & Nanotechnology

Imidazolium-Functionalized Poly(arylene ether sulfone) Anion-Exchange Membranes Densely Grafted with Flexible Side Chains for Fuel Cells

Dong Guo et al.

ACS APPLIED MATERIALS & INTERFACES (2016)

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Article Chemistry, Multidisciplinary

Highly hydroxide conductive ionomers with fullerene functionalities

Zhengjin Yang et al.

CHEMICAL COMMUNICATIONS (2016)

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Review Chemistry, Organic

Monosubstituted Cyclodextrins as Precursors for Further Use

Michal Rezanka

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY (2016)

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Article Chemistry, Physical

An effective strategy to increase hydroxide-ion conductivity through microphase separation induced by hydrophobic-side chains

L. Zeng et al.

JOURNAL OF POWER SOURCES (2016)

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Article Polymer Science

Multication Side Chain Anion Exchange Membranes

Liang Zhu et al.

MACROMOLECULES (2016)

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Article Chemistry, Physical

Highly stable poly(ethylene glycol)-grafted alkaline anion exchange membranes

Congrong Yang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2016)

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Article Polymer Science

Exploring Different Cationic Alkyl Side Chain Designs for Enhanced Alkaline Stability and Hydroxide Ion Conductivity of Anion-Exchange Membranes

Hai-Son Dang et al.

MACROMOLECULES (2015)

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Article Chemistry, Multidisciplinary

A novel poly(2,6-dimethyl-1,4-phenylene oxide) with trifunctional ammonium moieties for alkaline anion exchange membranes

Qing Li et al.

CHEMICAL COMMUNICATIONS (2014)

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Article Chemistry, Multidisciplinary

Anion-exchange membranes in electrochemical energy systems

John R. Varcoe et al.

ENERGY & ENVIRONMENTAL SCIENCE (2014)

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Article Chemistry, Physical

Water uptake, ionic conductivity and swelling properties of anion-exchange membrane

Qiongjuan Duan et al.

JOURNAL OF POWER SOURCES (2013)

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Article Chemistry, Multidisciplinary

Highly Stable, Anion Conductive, Comb-Shaped Copolymers for Alkaline Fuel Cells

Nanwen Li et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2013)

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Article Chemistry, Physical

Naphthalene-based poly(arylene ether ketone) anion exchange membranes

Zhuang Liu et al.

JOURNAL OF MATERIALS CHEMISTRY A (2013)

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Multiply quaternized poly(phenylene oxide)s bearing β-cyclodextrin pendants as assisting moiety for high-performance anion exchange membranes

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