Cell performance of MEA fabricated with Pt-ZSM-5-carbon electrode for PEMFC

Yun, Young-Sun; Kim, S.D.; Park, S.W.; Lee, J.Y.; Yi, Sung Chul; Kim, W.J.

doi:10.1016/j.micromeso.2009.12.011

Cited by 5 publications

(2 citation statements)

References 39 publications

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“…Note that the process of competitive ion Exchange of metals on the zeolite did not alter the diffraction pattern. The same was observed by [8]. According to the isotherms of adsorption/desorption shown in Figure 2, we observed that the shape of the N 2 isotherms were very similar for all samples.…”

Section: Resultssupporting

confidence: 85%

Preparation and Characterization: The Effect of Incorporation by Ion Exchange of Pt, Ni and Ru on a H-ZSM5 Zeolite

Barbosa

Rodrigues

et al. 2012

MSF

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The objective of this work was based on catalysts Pt, Ni and Ru supported on zeolite NH4ZSM-5 and characterize them. In this work monometallic bifunctional catalysts were prepared (Pt/NH4ZSM-5; Ni/NH4ZSM-5; Ru/NH4ZSM-5), all containing the same concentration of each metal supported by competitive ion exchange, using solutions of platinum complexes [Pt (NH3)4] Cl2, Nickel [Ni (NH3)6] Cl2and chloride Ruthenium III (RuCl3). The samples were characterized by chemical analysis by X-ray Spectroscopy Energy dispersive (EDS), X-Ray Diffraction (XRD), nitrogen adsorption (BET method). Through the analysis of X-ray diffraction, its possible to identify the preservation of the structure of zeolite ZSM-5 after the competitive ion Exchange with metals (Ni, Pt, Ru) and calcination. The dispersion of platinum and ruthenium in zeolite ZSM-5, didnt modify the textural characteristics of the zeolite, but the dispersion of nickel caused a change in values of surface area of catalysts.

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Section: Resultssupporting

confidence: 85%

Preparation and Characterization: The Effect of Incorporation by Ion Exchange of Pt, Ni and Ru on a H-ZSM5 Zeolite

Barbosa

Rodrigues

et al. 2012

MSF

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“…Platinum metals have good catalytic performance because of their excellent adsorption affinity to hydrogen and excellent catalytic properties. Thus, Pt has been widely used in SPE water electrolysis [6,7], fuel cells [8,9,10,11], and hydrogen storage [12,13]. However, Pt-based catalysts are not suitable for OER because of the high overpotential of Pt as it forms platinum oxides, which result in the poor conductivity of Pt [14].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of 3-DOM IrO2 Electrocatalysts Templated by PMMA for Oxygen Evolution Reaction

et al. 2019

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Three-dimensional ordered macroporous (3-DOM) IrO2 material was prepared using PMMA as a template and ammonia as a chelator. These 3-DOM IrO2 honeycomb arrays showed a large surface area and ordered macropores (155 nm in diameter) cross-linked by secondary mesopores. Internal structures of 3-DOM IrO2 material were observed microscopically through these secondary pores. According to the X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) spectra, 3-DOM IrO2 has a rutile crystal structure and is mainly composed of iridium dioxide. In acidic electrolytes, the overpotential of 3-DOM IrO2 material at 0.5 mV cm−2 was only 0.22 V. Accelerated durability tests demonstrated excellent durability of 3-DOM IrO2 as an oxygen evolution reaction (OER) catalyst.

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