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Electrocatalysts for the Oxygen Reaction, Core-Shell Electrocatalysts

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Encyclopedia of Applied Electrochemistry

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Introduction

The power generation and transportation heavily depend on fossil fuels. Therefore, fossil fuel availability, efficiency of conversion of their energy, and environmental effects are of great concern. A promising alternative to using fossil fuels that can solve problems associated with that can be achieved using fuel cells, because they are inherently clean and efficient energy conversion devices compatible with renewable energy sources.

Despite recent advances [1–7], existing fuel cell technology still suffers from inadequately efficient energy conversion due to sluggish oxygen reduction reaction (ORR) kinetics. In acid solution, Pt is the best electrode material for ORR due to its activity and stability (dissolution). But, to surmount problems with low levels of both, high Pt loadings are required, thereby impeding the widespread usage of fuel cells.

A way to reduce the amount of Pt is by alloying Pt with less noble metals [8]. However, the best alloys have high Pt...

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Acknowledgments

This work is supported by US Department of Energy, Division of Chemical Sciences, Geosciences and Biosciences Division, under the Contract No. DE-AC02-98CH10886.

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Authors and Affiliations

  1. Chemistry Department, Brookhaven National Laboratory, Upton, NY, 11973-5000, USA

    Miomir B. Vukmirovic

Authors
  1. Miomir B. Vukmirovic
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Correspondence to Miomir B. Vukmirovic .

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Editors and Affiliations

  1. Eppstein, Germany

    Gerhard Kreysa

  2. Yokohama National University, Fac. Engineering, Yokohama, Japan

    Ken-ichiro Ota

  3. Case Western Reserve University, Cleveland, OH, USA

    Robert F. Savinell

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Vukmirovic, M.B. (2014). Electrocatalysts for the Oxygen Reaction, Core-Shell Electrocatalysts. In: Kreysa, G., Ota, Ki., Savinell, R.F. (eds) Encyclopedia of Applied Electrochemistry. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-6996-5_400

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