Kinetic study of Nafion degradation by Fenton reaction

Sugawara, Tomoko; Kawashima, Norimichi; Murakami, Takurou N.

doi:10.1016/j.jpowsour.2010.10.043

Cited by 61 publications

(28 citation statements)

References 34 publications

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“…Thus, a more noticeable advantage of the catalyst is the extremely low H2O2 yield (<1%) without loading dependence. H2O2 is undesirable for Fe-based ORR catalyst due to the possible Fenton reaction in the presence of Fe 2+ , which will damage the Nafion® membrane in PEFCs [62]. For the C-Fe-Z8-air, the electron transfer number is between 3.35 and 3.81 in the same potential region.…”

Section: Figure 6amentioning

confidence: 99%

Directly converting Fe-doped metal–organic frameworks into highly active and stable Fe-N-C catalysts for oxygen reduction in acid

et al. 2016

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Compared to extensively studied oxygen reduction reaction (ORR) catalysis in alkaline media, development of highly active and stable nonprecious metal catalysts (NPMCs) to replace Pt in acidic electrolytes remains grand challenges. Among currently studied catalysts, the Fe-N-C formulation holds the greatest promise for the ORR in acid. Here, we report a new highly active and stable Fe-N-C catalyst featured with well-dispersed atomic Fe in porous carbon matrix, which was prepared through one single thermal conversion from Fe-doped ZIF-8, a metal-organic framework (MOF) containing Zn 2+ and well-defined Fe-N4 coordination. Unlike other Fe-N-C catalyst preparation, no additional tedious post-treatments such as acid leaching and the second heating treatment are required in this work. Notably, an O2-free environment for preparing the Fedoped ZIF-8 precursor is found to be crucial for yielding uniform Fe distribution into highly porous N-doped carbon matrix. The resulting new Fe-N-C catalyst exhibited exceptionally improved ORR

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Section: Figure 6amentioning

confidence: 99%

Directly converting Fe-doped metal–organic frameworks into highly active and stable Fe-N-C catalysts for oxygen reduction in acid

et al. 2016

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“…Part of the wave in input film is reflected back by test piece and the rest passes through. Foil gauge, strain meter, and transient recorder form a test system to calculate the coupled stress and strain wave, considering dispersion, friction, and propagation [156][157][158][159][160][161][162].…”

Section: Microscale Characterization Methods For Degradation and Dynamentioning

confidence: 99%

Microscale characterization of coupled degradation mechanism of graded materials in lithium batteries of electric vehicles

Li¹,

Yang²,

Song³

2015

Renewable and Sustainable Energy Reviews

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“…When crystal is formed, separator is easy to be penetrated [35]. Lithium penetration rate reflects the degradation of separator [36]. In new separator the rate is generally no more than 1 mA/cm 2 , but in degraded separator the rate reaches 10-20 mA/cm 2 [37].…”

Section: Lithium Battery Separator Materialsmentioning

confidence: 99%

Progress in research on the performance and service life of batteries membrane of new energy automotive

Song

Yang

2012

Chin. Sci. Bull.

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Batteries membrane materials are widely used in new energy automotives such as hybrid vehicles, fuel cell vehicles, and pure electric vehicles. Membrane consists of two categories: fuel cell membrane (power unit) and power battery membrane (charge and discharge device). With rapid development of the processes and technology of cell membrane materials, there is urgent need to study their properties and service life. The article summarizes the recent research progress in proton exchange membrane materials, lithium battery separator materials, and nickel-hydrogen battery separator materials. Based on our laboratory research, the paper features the affecting factors and mitigation strategy of performance and service life for automotive battery membrane materials. Future direction for the batteries membrane material of new energy automotive is discussed. Energy shortages and air pollution are the primary challenges facing global automotive industry. The transport sector accounts for 52% in global oil consumption in 2010 [1]. The world retains about 800 million cars and the number will reach 1.2 billion by 2020. Transport sector's energy consumption has become the main source of pollution and greenhouse gas emissions, making energy transformation imperative. New energy is the clean energy to replace gas and diesel, with high efficiency, environment friendliness, and low emissions. Nickel-hydride, lithium battery, and fuel cell are the major clean energies to provide power and become highly efficient for new energy vehicles, including hybrid electric vehicle, battery only electric vehicle and fuel cell vehicle. Energy battery is green energy and independent from the bottleneck of oil productivity, attracting attentions from many governments, research institutions and enterprises for R&D [2,3]. Among new battery materials, membrane materials work in a complex environment with high requirements for performance and are the first to degrade (even if other anode and cathode materials still work), becoming a weakness for battery system [4,5]. Membrane material properties determine the battery's thermal effects and resistance, directly affecting the battery performance and service life. Therefore, it is urgently needed to enhance the service performance and extend battery life. Taking proton exchange membrane materials, lithium battery separator materials, and nickel-hydride battery separator materials as examples, the paper introduces the research progress of membrane materials and discusses new methods to improve the performance and service life.

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Kinetic study of Nafion degradation by Fenton reaction

Cited by 61 publications

References 34 publications

Directly converting Fe-doped metal–organic frameworks into highly active and stable Fe-N-C catalysts for oxygen reduction in acid

Directly converting Fe-doped metal–organic frameworks into highly active and stable Fe-N-C catalysts for oxygen reduction in acid

Microscale characterization of coupled degradation mechanism of graded materials in lithium batteries of electric vehicles

Progress in research on the performance and service life of batteries membrane of new energy automotive

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