Ethanol electrooxidation on Pt/ZSM-5 zeolite-C catalyst

Pang, Haili; Chen, Jinhua; Yang, Lei; Liu, Bo; Zhong, Xia; Wei, Xiaogang

doi:10.1007/s10008-007-0383-4

Cited by 32 publications

(37 citation statements)

References 30 publications

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“…4 shows the Tafel plots (kinetics current as a function of potential) of the ethanol oxidation at the three catalysts, where an appreciable difference of the Tafel slope is evident, suggesting that the mechanism of ethanol oxidation may vary on the Pt and Pdbased catalysts. The mechanism of electrooxidation of ethanol is still controversial and debatable [34][35][36][37]. However, it is generally accepted that the first step involves the dissociative adsorption of ethanol on the catalyst surface:…”

Section: Resultsmentioning

confidence: 99%

Carbon-supported PdM (M=Au and Sn) nanocatalysts for the electrooxidation of ethanol in high pH media

Chen

Mukerjee

et al. 2009

Journal of Power Sources

203

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Section: Resultsmentioning

confidence: 99%

Carbon-supported PdM (M=Au and Sn) nanocatalysts for the electrooxidation of ethanol in high pH media

Chen

Mukerjee

et al. 2009

Journal of Power Sources

203

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“…The enhancement was believed to be solely derived from the preferential formation of sterically constrained CO clusters that were readily oxidized to CO 2 by interaction with the zeolite pore. A similar work was carried out by Pang and coworkers [96] for ethanol electroxidation using the Pt/ZSM-5-C catalyst. They used a commercial ZSM-5 of high Si/Al ratio greater than 300 and were able to show higher activity and better stability compared to Pt/C.…”

Section: Zeolite Electrocatalystsmentioning

confidence: 87%

Zeolites and Molecular Sieves in Fuel Cell Applications

Yeung

Han

2010

Zeolites and Catalysis

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IntroductionZeolites and molecular sieves belong to an important class of natural and synthetic porous materials [1] that find important applications in many industrial processes including chemical separation and purification, chemical synthesis and fuel conversion, and pollution treatment and abatement [2][3][4]. The discovery of MCM-41 in 1992 [5, 6] has attracted research in the synthesis and applications of large pore molecular sieves including ordered mesoporous materials. The mesoporous materials display a greater range of pore sizes and compositions than typical zeolites and molecular sieves, and researches show that they are excellent catalyst, adsorbent, and membrane materials that have potential applications not only in traditional chemical processes but also in microelectronics, sensors, and agriculture [7-10].Fuel cell promises clean and efficient energy generation for stationary, mobile, and portable applications [11]. Striving for enhanced performance, zeolites and mesoporous materials are increasingly used in fuel cells. They were used to increase proton transport, decrease fuel crossover, and improve water management in the electrolyte membrane. They serve as electrode and electrocatalyst in the fuel cell and are also employed in fuel conversion, reforming, and storage. There are a number of excellent reviews on fuel cell electrolyte membranes [12][13][14][15][16][17] and electrode materials [18,19] in the literature, but none includes the recent uses of zeolites and molecular sieves. This chapter reviews the contributions of zeolites and molecular sieves in fuel cell research and is divided into three sections: (i) zeolites in electrolyte membrane, (ii) zeolites in fuel cell electrocatalysis, and (iii) zeolites in fuel processing for fuel cells. Zeolites in Electrolyte MembraneThe electrolyte membrane in a fuel cell separates the anode and cathode reactants and mediates the electrochemical reactions at the electrodes by rapid and selective

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“…In addition, It was reported that metal-zeolitemodified electrocatalyst have been adopted for the oxidation of ethanol which is a promising energy source for DEFC (Direct Ethanol Fuel Cell). Pang et al [38] conducted the electro-oxidation of ethanol on Pt/ZSM-5-C/graphite catalyst acidic medium (i.e. 0.1 M H 2 SO 4 ) and their results showed higher electro-catalytic activity than of Pt/C/graphite.…”

Section: Introductionmentioning

confidence: 97%