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Platinum electrocatalysts monolayer

Zhang, J. et al., Platinum and mixed platinum-metal monolayer fuel cell electrocatalysts design, activity and long-term performance stability, ECS Trans., 3, 31, 2006. [Pg.295]

Sasaki K, Adzic RR (2008) Monolayer-level Ru- and Nb02-supported platinum electrocatalysts for methanol oxidation. J Electrochem Soc 105 B180-B186... [Pg.24]

Sasaki K, Zhang J, Wang J, Uribe F, Adzic R, Sasaki K, Zhang J, Wang J, Uribe F, Adzic RR (2006) Platinum submonolayer-monolayer electrocatalysts an electrochemical and X-ray absorption spectroscopy study. Res Chem Intermediate 32 543-559... [Pg.408]

Zhang J, Mo Y, Vukmirovic MB, Klie R, Sasaki K, Adzic RR. 2004. Platinum monolayer electrocatalysts for O2 reduction Pt monolayer on Pd(lll) and on carbon-supported Pd nanoparticles. J Phys Chem B 108 10955-10964. [Pg.31]

Vukmirovic MB, Zhang J, Sasaki K, Nilekar AU, Uribe E, Mavrikakis M, Adzic RR. 2007. Platinum monolayer electrocatalysts for oxygen reduction. Electrochim Acta 52 2257-2263. [Pg.313]

Zhang J, Vukmirovic MB, Xu Y, Mavrikakis M, Adzic RR. 2005a. Controlling the catalytic activity of platinum-monolayer electrocatalysts for oxygen reduction with different substrates. Angew Chem Int Ed 44 2132-2135. [Pg.316]

Y. D. Jin, Y. Shen, and S. J. Dong, Electrochemical design of ultrathin platinum-coated gold nanoparticle monolayer films as a novel nanostructured electrocatalyst for oxygen reduction, J. Phys. Chem. B 108, 8142-8147 (2004). [Pg.304]

Zhang, J. et al., Platinum monolayer on nonnoble metal-noble metal core-shell nanoparticle electrocatalysts for O2 reduction, J. Phys. Chem. B, 109, 22701, 2005. [Pg.298]

Zhang J, Lima FHB, Shao MH, Sasaki K, Wang JX, Hanson J, Adzic RR (2005) Platinum monolayer on non-noble metal-noble metal core-shell nanoparticle electrocatalysts for 0-2 reduction. J Phys Chem B 109 22701... [Pg.74]

E25.17 Electrocatalysts are compounds that are capable of reducing the kinetic barrier for electrochemical reactions (barrier known as overpotential). While platinum is the most efficient electrocatalyst for accelerating oxygen reduction at the fuel cell cathode, it is expensive (recall Section 25.18 Electrocatalysis). Current research is focused on the efficiency of a platinum monolayer by placing it on a stable metal or alloy clusters your book mentions the use of the alloy PtsN. An example would be a platinum monolayer fuel-cell anode electrocatalyst, which consists of ruthenium nanoparticles with a sub-monolayer of platinum. Other areas of research include using tethered metalloporphyrin complexes for oxygen activation and subsequent reduction. [Pg.230]

The activity for the ORR of Pt monolayers, deposited on different single-crystal surfaces, using the Cu UPD technique [14], were investigated in acid and in alkaline electrolytes [7, 8]. Figure 5.1a show the typical ORR curves obtained for pure Pt/C and Pt monolayer on Pd/C nanoparticles, and Fig. 5.1b shows the plot of ORR activity versus Pt d-band center on different surfaces [7]. As can be seen, the ft monolayer electrocatalysts exhibited support-induced tunable activity by arising either by structural and/or electronic effects. It can be observed that the most active of all surfaces is PtML/Pd(lll), and the least active is PtML/Ru(0001). The plots of the kinetic current on the platinum monolayers on various substrates at 0.8 V as a function of the calculated d-hznA center, e, generated a volcano-like curve, with PtML/Pd(lll) showing the maximum activity (Fig. 5.1a). [Pg.102]

Galvanic displacement method is also often used for synthesizing catalysts. By this method, low Pt-content electrocatalysts can be obtained. For example, a carbon-supported core—shell structured electrocatalyst with bimetallic IrNi as the core and platinum monolayer as the shell has been successfully synthesized using this method. In this synthesis, IrNi core supported on carbon was first synthesized by a chemical reduction and thermal annealing method and a Ni core and Ir shell structure could be formed finally. The other advantage of this method is that the Ni can be completely encased by Ir shell, which will protect Ni dissolve in acid medium. Secondly, IrNi PtML/C core—shell electrocatalyst was prepared by depositing a Pt monolayer on the IrNi substrate by galvanic displacement of a Cu monolayer formed by under potential deposition (UPD). [Pg.94]

Kuttiyiel KA, Sasaki K, Choi Y, Su D, Liu P, Adzic RR. Bimetallic IrNi core platinum monolayer shell electrocatalysts for the oxygen reduction reaction. Energy Environ Sci 2012 5(1) 5297. [Pg.127]

Li M, Liu P, Adzic RR (2012) Platinum monolayer electrocatalysts for anodic oxidation of alcohols. J Phys Chem Lett 3 3480-3485... [Pg.25]

Esposito DV, Chen JG (2011) Monolayer platinum supported on tungsten carbides as low-cost electrocatalysts opportunities and limitations. Energy Environ Sci 4 3900-3912... [Pg.40]

Adzic RR, Lima EHB (2009) Platinum monolayer oxygen reduction electrocatalysts, Chapter 1. In Vielstich W, Yokokawa H, Gasteiger HA (eds) Handbook of fuel cells, fundamentals, technology and applications. Advances in electrocatalysis, materials diagnostics and durability, vol 5, part 1. Wiley, West Sussex... [Pg.585]

Cai Y, Adzic RR (2011) Platinum monolayer electrocatalysts for the oxygen reduction reaction improvements induced by surface and subsurface modification of cores. Adv Phys Chem 11 16. doi 10.1155/2011/530397, Article ID 530397... [Pg.585]


See other pages where Platinum electrocatalysts monolayer is mentioned: [Pg.515]    [Pg.102]    [Pg.57]    [Pg.288]    [Pg.696]    [Pg.250]    [Pg.570]    [Pg.529]    [Pg.100]    [Pg.103]    [Pg.4385]    [Pg.9]    [Pg.532]   


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Electrocatalyst

Electrocatalysts

Platinum electrocatalyst

Platinum electrocatalysts

Platinum monolayer

Platinum monolayers

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