Journal
ULTRASONICS SONOCHEMISTRY
Volume 29, Issue -, Pages 401-412Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultsonch.2015.10.013
Keywords
Electrocatalyst; Low-temperature fuel cells; Core-shell structure; Sonochemistry; Nanomaterials
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Funding
- Agency for Defense Development through Chemical and Biological Defense Research Center (CBDRC-25) - Ministry of Defense
- Basic Science Research Program through National Research Foundation of Korea (NRF) - Ministry of Education of Government of Republic of Korea [NRF-2009-0083540]
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This review presents recent advances in multi-component electrocatalysts for low-temperature fuel cells (FCs) synthesized via sonochemical reactions. As a feasible approach to develop novel electrocatalysts that can overcome the many problems of the prevailing Pt electrocatalysts, Pt- or Pd-based alloy and core shell M@Pt nanoparticles (NPs) have been pursued. Synthesizing NPs with desirable properties often turn out to be challenging. Sonochemistry generates extreme conditions via acoustic cavitation, which have been utilized in the syntheses of various Pt and Pd NPs and Pt- and Pd-based alloy NPs. Especially, it has been reported that several M@Pt core shell NPs can be synthesized by sonochemistry, which is hard to achieve by other methods. The principles of sonochemistry are presented with examples. Also alloy NPs and core shell NPs synthesized by sonochemistry and those by other methods are compared. (C) 2015 Elsevier B.V. All rights reserved.
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