Weak-base anion exchange membranes by amination of chlorinated polypropylene with polyethyleneimine at low temperatures

Hong, Jinpyo; Li, Dan; Wang, Huanting

doi:10.1016/j.memsci.2008.03.017

Cited by 24 publications

(6 citation statements)

References 12 publications

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“…6. The absorption bands at 723–682 cm −1 were attributed to the stretching vibrations of CCl bonds 18. In comparison with PSCl and PSImN, the peak at 703 cm −1 was decreased in the spectra of PSImN, due to the destruction of the CCl groups and their replacement with imidazole.…”

Section: Resultsmentioning

confidence: 96%

Sorption of carbon dioxide by ionic liquid‐based sorbents

Zhu

Park

et al. 2012

Asia-Pacific J Chem Eng

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Ionic liquids and ionic liquid-based materials were emerging as sorbents for carbon dioxide capture. Amino-imidazolium materials, a kind of sorbents, were synthesized and characterized for the sorption of carbon dioxide. The ionic liquid-modified materials have higher sorption capacity of carbon dioxide than the unmodified sorbents. The effects of pressure and temperature were investigated. The adsorbed amount of carbon dioxide increased with the increasing pressure and the ionic liquid-based polymer show higher sorption efficiency than that of ionic liquid-based silica. 

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Section: Resultsmentioning

confidence: 96%

Sorption of carbon dioxide by ionic liquid‐based sorbents

Zhu

Park

et al. 2012

Asia-Pacific J Chem Eng

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“…17,18 However, a number of groups are working toward AAEMs that have the mechanical and chemical properties desired for solid alkaline fuel cells. [19][20][21][22][23][24][25] As a relatively nascent technology, there are few examples of AAEM fuel cells in the literature 8,[25][26][27][28][29][30][31][32] with the best performance of 440 mWcm −2 being demonstrated by Piana et al 33 The HOR in alkaline.-The kinetics of the hydrogen oxidation reaction in acidic PEM fuel cells above room temperature are often so fast that they contribute a negligible activation overpotential. 34 This allows catalyst loadings on the anode to be as low as 0.05 mg Pt cm −2 without affecting overall fuel cell performance significantly 2 and means catalyst development is mainly focused on the cathode.…”

mentioning

confidence: 99%

Hydrogen Oxidation on PdIr/C Catalysts in Alkaline Media

Jervis

Mansor²,

Gibbs³

et al. 2014

J. Electrochem. Soc.

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A novel PdIr/C supported alloy nanoparticle catalyst has been developed for use in the hydrogen oxidation reaction (HOR) at the anode of an Alkaline Anion Exchange Membrane (AAEM) fuel cell. The catalyst has been characterized using Transmission Electron Microscopy (TEM), Energy Dispersive X-ray Spectroscopy (EDX) and Synchrotron X-ray Powder Diffraction (SXPD). Electrochemical testing suggests it has a comparable activity for HOR as Pt/C and is a good candidate for use on the anode of an AAEM fuel cell.

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“…There are many examples of anion exchange membranes in the literature, and of many different types, as summarized in Refs [52,57], but the most promising membranes for fuel cell applications are formed by radiation grafting of R 4 N + groups onto polymer backbones [58][59][60][61][62][63][64][65][66] or chemical modification of existing polymers [51,[67][68][69][70]. A study by Varcoe in 2007 represented the first AAEM with conductivity over the desired mark of 10 mS cm 1 required for viable solid alkaline fuel cells, although the membrane required high levels of humidification to maintain good conductivity [71].…”

Section: Alkaline Membranesmentioning

confidence: 99%

Alkaline Anion Exchange Membrane Fuel Cells

Jervis¹,

Brett²

2014

Materials for Low‐Temperature Fuel Cells

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Fuel cells represent a potentially integral technology in a greener electricitybased energy economy. Converting chemical energy directly into electricity with no moving parts and no particulate or greenhouse gas emissions at point of operation, they can offer higher efficiencies than combustion and greater energy storage and reduced "charge" times compared with batteries. While they retain few of the disadvantages of existing electricity generation technologies, a major barrier to commercialization and widespread use at present is cost. The key working part of a fuel cell, the membrane electrode assembly (MEA), comprises a catalyst, usually containing platinum, and an ionic polymer membrane, both of which contribute significantly to the overall cost of a fuel cell. This chapter will concentrate on the potential for alkaline anion exchange membrane (AAEM) fuel cells to provide a route to reduced costs and help realize commercial ubiquity of fuel cells in various energy sectors. We will first discuss the basic principles of the more common acidic PEM fuel cells and the thermodynamics and kinetics of the electrochemical reactions governing their operation, before explaining the key differences in AAEM fuel cells and how they might provide an advantage over the more established technology.This basic idea of the fuel cell goes back to as far as 1839 when Swanseaborn physicist Sir William Gove realized that reverse electrolysis of water was possible. However, development from this concept was slow and it was not until the 1960s and the Apollo Space Programme that fuel cells became practicable, in the form of aqueous alkaline electrolyte fuel cells. Aqueous electrolyte-based fuel cells have many disadvantages for portability causing recent focus to shift toward solid electrolytes, in particular toward polymer electrolyte membrane (PEM) fuel cells. These employ an ionomer, which is a polymer containing an ionic functional group in the monomer, as the electrolyte in order to allow hydrogen ion transport through a nonaqueous medium. Recent improvements in membrane technology, and in particular the performance of the industry standard Nafion membranes, have made PEM fuel cells a major focus of research. The alkaline 3 Materials for Low-Temperature Fuel Cells, First Edition. Edited

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Weak-base anion exchange membranes by amination of chlorinated polypropylene with polyethyleneimine at low temperatures

Cited by 24 publications

References 12 publications

Sorption of carbon dioxide by ionic liquid‐based sorbents

Sorption of carbon dioxide by ionic liquid‐based sorbents

Hydrogen Oxidation on PdIr/C Catalysts in Alkaline Media

Alkaline Anion Exchange Membrane Fuel Cells

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