Overview of Hydrogen & Fuel Cell Activities - DOE Hydrogen and ...
Overview of Hydrogen & Fuel Cell Activities - DOE Hydrogen and ...
Overview of Hydrogen & Fuel Cell Activities - DOE Hydrogen and ...
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Pt/Pd Core-Shell Catalysts<br />
Fundamental research has demonstrated high activity <strong>of</strong> Pt monolayer catalysts,<br />
leading to development <strong>of</strong> practical core-shell catalysts through applied R&D<br />
Fundamental Science<br />
Applied R&D<br />
Addition <strong>of</strong> other metals to<br />
core, along with interlayers<br />
between shell <strong>and</strong> core,<br />
further enhance core-shell<br />
activity <strong>and</strong> durability.<br />
High activity <strong>of</strong> Pt monolayer<br />
surfaces was demonstrated<br />
on model (single-crystal)<br />
surfaces. Substrate metal<br />
modifies Pt electronic<br />
structure, allowing tuning <strong>of</strong><br />
catalytic activity <strong>and</strong> durability.<br />
Pt monolayer<br />
Pd core<br />
Adzic et al., BNL<br />
Demonstration <strong>of</strong> Pt monolayer on a Pd<br />
core – a promising high activity, high<br />
durability, low-loading PGM catalyst.<br />
Scale-up to gram-level quantities <strong>of</strong> coreshell<br />
catalysts in EERE-funded partnership<br />
with Cabot, as well as external CRADAs.<br />
18 | <strong>Fuel</strong> <strong>Cell</strong> Technologies Program Source: US <strong>DOE</strong> 2/24/2011 eere.energy.gov
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