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Core-Shell Fuel Cell Electrodes

Brookhaven National Laboratory

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Artists rendition of the arrangement of platinum atoms in common use (left) and in the inventive scheme (right).<br type="_moz" />
Artists rendition of the arrangement of platinum atoms in common use (left) and in the inventive scheme (right).

Technology Marketing Summary

Platinum is the best catalyst for the oxygen reduction reaction, the limiting reaction in fuel cells. It is also one of the least abundant and most expensive metals. For the best utilization of platinum, monolayers of the noble metal are deposited on a less expensive particle core. These core-shell particles are then incorporated as catalysts, often on a gas diffusion layer or other support. To improve the utilization of platinum even further, the inventors have developed a method of depositing the platinum monolayers on the particle cores after the cores have been attached to the support.

Description

A method of depositing platinum monolayers on particle cores after the cores have been attached to the support. In this way there are no inactive noble metal atoms trapped between the cores and the support.

Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Application 20150017565
Application
20150017565
Core-Shell Fuel Cell Electrodes
Embodiments of the disclosure relate to electrocatalysts. The electrocatalyst may include at least one gas-diffusion layer having a first side and a second side, and particle cores adhered to at least one of the first and second sides of the at least one gas-diffusion layer. The particle cores includes surfaces adhered to the at least one of the first and second sides of the at least one gas-diffusion layer and surfaces not in contact with the at least one gas-diffusion layer. Furthermore, a thin layer of catalytically atoms may be adhered to the surfaces of the particle cores not in contact with the at least one gas-diffusion layer.
Brookhaven National Laboratory 05/15/2014
Filed
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
BSA 13-15PrototypeAvailable03/30/201503/30/2015

Contact BNL About This Technology

To: Poornima Upadhya<pupadhya@bnl.gov>