Rhodium-Tin Binary Nanoparticle-A Strategy to Develop an Alternative Electrocatalyst for Oxygen Reduction

Title
Rhodium-Tin Binary Nanoparticle-A Strategy to Develop an Alternative Electrocatalyst for Oxygen Reduction
Authors
함형철유성종조진원안민제차인영성영은
Keywords
electrocatalyst; oxygen reduction; fuel cells; rhodium?tin; nanomaterial
Issue Date
2017-09
Publisher
ACS catalysis
Citation
VOL 7, NO 9-5801
Abstract
A Rh-Sn nanoparticle is achieved by combinatorial approaches for application as an active and stable electrocatalyst in the oxygen reduction reaction. Both metallic Rh and metallic Sn exhibit activities too low to be utilized for electrocatalytic reduction of oxygen. However, a clean and active Rh surface can be activated by incorporation of Sn into a Rh nanoparticle through the combined effects of lateral repulsion, bifunctional mechanism, and electronic modification. The corrosion-resistant property of Rh contributes to the construction of a stable catalyst that can be used under harsh fuel cell conditions. Based on both theoretical and experimental research, Rh Sn nanoparticle designs with inexpensive materials can be a potential alternative catalyst in terms of the economic feasibility of commercialization and its facile and simple surfactant-free microwave-assisted synthesis.
URI
http://pubs.kist.re.kr/handle/201004/66374
ISSN
2155-5435
Appears in Collections:
KIST Publication > Article
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