Azide-assisted crosslinked quaternized polysulfone with reduced graphene oxide for highly stable anion exchange membranes

Hu, Bo; Miao, Liyan; Zhao, Yanxu; Lü, Changli

doi:10.1016/j.memsci.2017.02.023

Cited by 96 publications

(41 citation statements)

References 71 publications

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“…Considerably lower GO amounts were needed when anion exchange polymers were used since the IEC does not depend on the filler loading in these cases. [24][25][26] Moreover, high IEC coupled with good dimensional stability was achieved this way. 25 However, the preparation of these membranes usually involved multiple steps and dangerous chemicals such as chloromethyl methyl ether.…”

Section: Introductionmentioning

confidence: 99%

Graphene oxide–polybenzimidazolium nanocomposite anion exchange membranes for electrodialysis

et al. 2018

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Section: Introductionmentioning

confidence: 99%

Graphene oxide–polybenzimidazolium nanocomposite anion exchange membranes for electrodialysis

et al. 2018

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“…These above-mentioned materials are expensive and the need for a material that is cheap with a better performance is becoming very important. Composite Membranes have been made from materials like hydrocarbons [43,54,56,[78][79][80][81][82], ceramics [83] [22,58,83], graphene [65,[84][85][86][87] among others. Current research efforts aims to produce catalytic membranes wholly made of composites thus replacing Nafion.…”

Section: Preparation Of Membranementioning

confidence: 99%

Fuel cell membranes – Pros and cons

Ogungbemi

Ijaodola

Khatib

et al. 2019

Energy

190

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This investigation provides a critical analysis of the development of PEM fuel cells and related research with specific focus on the membrane material. The catalytic membrane is the most important component of the PEMFC giving rise to the need for the use of efficient, durable and cheap material to reduce the overall cost of the fuel cell. In this work, the need for materials other than Nafion to be used as PEM membranes is established and a case for the use of composite membranes material in fuel cells is made. Composite membranes increase the cell voltage by up to 11% even at high cell operating temperature of 95°C. They also increase the overall performance of the cell by up to 17% when dry hydrogen is utilised.Non-fluorinated membranes are also suitable for use in fuel cells for portable applications but they are very expensive and less conductive. Partially fluorinated membranes have good mechanical stability but expensive. The fluorinated membrane has high stability under oxidation and reduction conditions. Unfortunately, they only reach their optimum performance at ACCEPTED MANUSCRIPT 1 temperatures below 100°C which makes them of limited use in PEM fuel cells application at higher temperatures.

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“…connected sugars to graphene making it more hydrophilic. The reaction of graphene with organic azides is less important, however, it produced few quite interesting materials: azirido‐graphene membranes containing polysulphone groups were recently introduced showing better ion selectivity compared to the commercial Nafion117 membrane …”

Section: Applications Of Modified Graphenesmentioning

confidence: 99%

“…[63a, 129] Wang et al used graphene azide to link graphene sheets and used them for the detection of Cu 2 + ions [130] and Namazi et al connected sugars [131] to graphene making it more hydrophilic.T he reaction of graphene with organic azides is less important, however,i tp roduced few quite interesting materials:a zirido-graphene membranes containing polysulphoneg roups were recently introduced showingb etter ion selectivity compared to the commercial Nafion117 membrane. [132] Boronic acid modified graphenes create frameworks, which seem to be promisingf or storageo fh ydrogena nd other gases. [61] Haquee tal.…”

Section: Applications Of Modified Graphenesmentioning

confidence: 99%

Chemistry of Graphene Derivatives: Synthesis, Applications, and Perspectives

Šturala

Luxa

Pumera

et al. 2018

Chemistry A European J

117

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The chemistry of graphene and its derivatives is one of the hottest topics of current material science research. The derivatisation of graphene is based on various approaches, and to date functionalization with halogens, hydrogen, various functional groups containing oxygen, sulfur, nitrogen, phosphorus, boron, and several other elements have been reported. Most of these functionalizations are based on sp hybridization of carbon atoms in the graphene skeleton, which means the formation of out-of-plane covalent bonds. Several elements were also reported for substitutional modification of graphene, where the carbon atoms are substituted with atoms like nitrogen, boron, and several others. From tens of functional groups, for only two of them were reported full functionalization of graphene skeleton and formation of its stoichiometric counterparts, fluorographene and hydrogenated graphene. The functionalization of graphene is crucial for most of its applications including energy storage and conversion devices, electronic and optic applications, composites, and many others.

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Azide-assisted crosslinked quaternized polysulfone with reduced graphene oxide for highly stable anion exchange membranes

Cited by 96 publications

References 71 publications

Graphene oxide–polybenzimidazolium nanocomposite anion exchange membranes for electrodialysis

Graphene oxide–polybenzimidazolium nanocomposite anion exchange membranes for electrodialysis

Fuel cell membranes – Pros and cons

Chemistry of Graphene Derivatives: Synthesis, Applications, and Perspectives

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