Cellulose nanowhiskers to regulate the microstructure of perfluorosulfonate ionomers for high-performance fuel cells

Hasani-Sadrabadi, Mohammad Mahdi; Dashtimoghadam, Erfan; Nasseri, Rasool; Karkhaneh, Akbar; Majedi, Fatemeh Sadat; Mokarram, Nassir; Renaud, Philippe; Jacob, Karl I.

doi:10.1039/c4ta00635f

Cited by 44 publications

(34 citation statements)

References 33 publications

(40 reference statements)

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“…39 All the proton conductivities of PEMs were reached by a fourelectrode method under AC Impedance spectroscopy between 0.1 MHz and 1 Hz on a CHI660D electrochemical workstation with potentiostat control. The experiments were conducted as the reported method.…”

Section: Characterization Of Sn-b-cd/naon Composite Membranesmentioning

confidence: 99%

β-Cyclodextrin modified silica nanoparticles for Nafion based proton exchange membranes with significantly enhanced transport properties

et al. 2015

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In the current study, a composite proton exchange membrane (PEM) was prepared by incorporating bcyclodextrin (b-CD) modified silica nanoparticles (SN-b-CD) into a Nafion matrix. Due to the decoration of b-CD on the SN surface, SN-b-CD possesses excellent compatibility with the Nafion polymer, resulting in a good dispersibility inside the membrane matrix. SN-b-CD brings a better water retention capability for the composite PEM and hence significantly improves the proton conductivity of the composite PEM. Simultaneously, the barrier effect of SN-b-CD which increases the tortuosity of transport channels for bulk methanol leads to an evident reduction in methanol permeability. Herein, a nearly two-order-of-magnitude promotion in membrane selectivity (i.e. the ratio of proton conductivity to membrane permeability) was achieved even under crucial conditions at elevated temperatures or high methanol concentrations.

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Section: Characterization Of Sn-b-cd/naon Composite Membranesmentioning

confidence: 99%

β-Cyclodextrin modified silica nanoparticles for Nafion based proton exchange membranes with significantly enhanced transport properties

et al. 2015

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“…4a and S9a †), with the addition of BN QDs, the thermal stability of the composite PEM is significantly enhanced, due to some interactions between the Nafion matrix and BN QDs. Surprisingly, the water retention capability of PEMs especially the weight fraction of the bonded water, 29 is significantly increased at room temperature. It is probably due to the fact that some O atoms are doped into the BN QDs during the solvothermal incision process, thus enhancing the hydrophilicity of BN QDs.…”

mentioning

confidence: 98%

Facile preparation and multifunctional applications of boron nitride quantum dots

et al. 2015

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“…Apart from this, nanocellulose is known to enhance the barrier properties and mechanical stability of the membranes, which are an essential requirement of the PEMs. Hasani-Sadrabadi et al [92] combined CNCs with Nafion altering its microstructure. This alteration enhanced the proton conductivity (0.2 S cm −1 of Nafion-CNC vs 0.15 S cm −1 of recast Nafion at 120 °C and 100% relative humidity) and suppressed the methanol permeability (2.3 × 10 −7 cm 2 s −1 for Nafion-CNC vs 2.1 × 10 −6 cm 2 s −1 for recast Nafion) with 5 wt% CNC.…”

Section: Cnc Separatorsmentioning

confidence: 99%

Cellulose Nanocrystals in Sustainable Energy Systems

Calle‐Gil

Castillo‐Martínez

Carretero‐González

2022

Advanced Sustainable Systems

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The transition to low‐carbon emitting technologies provokes an increasing demand in energy conversion and storage systems such as fuel cells, batteries, and supercapacitors, and consequently, the need for their raw materials. The use of new chemistries from earth‐abundant precursors instead of scarce, toxic, and nondegradable components existing in current systems must be a priority in future years. Cellulose is the most abundant biopolymer on earth. Their crystalline constituents designated as cellulose nanocrystals (CNC) have been studied as functional materials due to their excellent structural and chemical properties. This review covers a recent collection of works on innocuous CNC‐based materials with special attention to the fabrication methodologies of electrodes, electrolytes, membranes, and separators. The implementation of these CNC‐derived materials in sustainable energy conversion and storage systems is also discussed.

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Cellulose nanowhiskers to regulate the microstructure of perfluorosulfonate ionomers for high-performance fuel cells

Cited by 44 publications

References 33 publications

β-Cyclodextrin modified silica nanoparticles for Nafion based proton exchange membranes with significantly enhanced transport properties

β-Cyclodextrin modified silica nanoparticles for Nafion based proton exchange membranes with significantly enhanced transport properties

Facile preparation and multifunctional applications of boron nitride quantum dots

Cellulose Nanocrystals in Sustainable Energy Systems

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