Preparation of zirconium phosphate (ZrP)/Nafion1135 composite membrane and H+/VO2+ transfer property investigation

Sang, Shangbin; Wu, Qiong; Huang, Kelong

doi:10.1016/j.memsci.2007.07.041

Cited by 64 publications

(32 citation statements)

References 22 publications

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“…However, the Nafion Ò membranes suffer from heavy active ion crossover and low ion selectivity. By incorporation of inorganic species (such as SiO 2 , TiO 2 , and ZrP) into Nafion Ò , the crossover of vanadium ions can be effectively reduced [143,144,152]. The ion selectivity can be enhanced using the organic/Nafion Ò hybrid membranes fabricated with interfacial polymerization and directly blending methods.…”

Section: Separatorsmentioning

confidence: 99%

Redox flow batteries: a review

et al. 2011

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Section: Separatorsmentioning

confidence: 99%

Redox flow batteries: a review

et al. 2011

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“…[9][10][11][12][13][14][15][16][17][18][19] The properties of the IEM greatly affect the resulting performance of the VRB. The membranes traditionally used in VRB are perfluorosulfonic acid polymers such as Dupont's NafionÒ.…”

Section: 8mentioning

confidence: 99%

Ion exchange membranes for vanadium redox flow battery (VRB) applications

Zhang

Mai

et al. 2011

Energy Environ. Sci.

881

623

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The vanadium redox flow battery (VRB) has received wide attention due to its attractive features for large scale energy storage. The key material of a VRB is an ion exchange membrane (IEM) that prevents cross mixing of the positive and negative electrolytes, while still allowing the transport of ions to complete the circuit during the passage of current. This review focuses on all aspects related to IEMs that are of relevance to understand IEMs better. An overview of the general issues of VRBs will be given first, after which the role of the IEM will be outlined together with the material requirements for advanced alternative IEMs. Finally, the recent progress of IEMs in VRBs will be reviewed and directions will be given for the development of next-generation materials.

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“…Because vanadium ions transfer mainly in the form of hydrate vanadium ions [8], a significant amount of water transfers across the membrane, which can lead to a reduction in cell capacity due to concentration of active species on one side and dilution on the other side [12,13]. In order to reduce the permeation of the vanadium ions and improve performance of Nafion membrane in VRB system, modifications of Nafion-based membrane are widely studied using different methods, such as layer-by-layer self-assembled technique [14], interfacial polymerization [15], impregnating method [16], and sol-gel method [17][18][19]. However, most of these methods require complicated operations and sometimes expensive or toxic reagents.…”

Section: Introductionmentioning

confidence: 99%

Nafion/TiO2 hybrid membrane fabricated via hydrothermal method for vanadium redox battery

Wang

Peng

et al. 2011

J Solid State Electrochem

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To improve the performance of Nafion membrane as a separator in vanadium redox battery (VRB) system, a Nafion/TiO 2 hybrid membrane was fabricated by a hydrothermal method. The primary properties of this hybrid membrane were measured and compared with the Nafion membrane. The Nafion/TiO 2 hybrid membrane has a dramatic reduction in crossover of vanadium ions compared with the Nafion membrane. The results of scanning electron microscope, energy dispersive X-ray spectroscopy, and X-ray diffraction of the hybrid membrane revealed that the TiO 2 phase was formed in the bulk of the prepared membrane. Cell tests identified that the VRB with the Nafion/TiO 2 hybrid membrane presented a higher coulombic efficiency (CE) and energy efficiency (EE), and a lower selfdischarge rate compared with that of the Nafion system. The CE and EE of the VRB with the hybrid membrane were 88.8% and 71.5% at 60 mA cm −2 , respectively, while those of the VRB with Nafion membrane were 86.3% and 69.7% at the same current density. Furthermore, cycling tests indicated that the Nafion/TiO 2 hybrid membrane can be applied in VRB system.

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Preparation of zirconium phosphate (ZrP)/Nafion1135 composite membrane and H+/VO2+ transfer property investigation

Cited by 64 publications

References 22 publications

Redox flow batteries: a review

Redox flow batteries: a review

Ion exchange membranes for vanadium redox flow battery (VRB) applications

Nafion/TiO2 hybrid membrane fabricated via hydrothermal method for vanadium redox battery

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