Structure-Function Relationships in Nanoscale Electrocatalysis
EMSL Project ID
38500
Abstract
The goal of this proposal is to investigate the relationship between electrocatalytic activity and geometric characteristics at single metal nanowires. A key aspect of the proposed research is that the application of a single-nanowire electrode (SNWE) will allow for precise correlation of the electrochemical responses with its geometric characteristics. The size and shape of the SNWE will be characterized using high-resolution transmission electron microscopy (TEM). It is usually difficult to investigate the structure-function relationship in nanoscale catalysts due to averaging effects arising from ensembles of poly-dispersed nanomaterials. This proposal provides a solution to this problem. The electrocatalytic activity of single Pt nanowires will be studied with the oxygen-reduction reaction (ORR) and the methanol oxidation reaction, both of which are vital reactions in fuel cell research. The proposed research could yield very important information for understanding the structure-function relationship in nanoscale catalysis, and could be of great value in designing highly efficient electrocatalysts.This proposal fits well within the "Science of Interfacial Phenomena Science Theme" of EMSL, because it aims to understand, at the molecular-scale, the structure-function of nanoscale catalysts 'having possible environmental and energy implications'. If successful, the proposed research will yield essential information 'to technologies needed to maintain a secure environment and obtain a stable energy future'.
Project Details
Project type
Exploratory Research
Start Date
2010-05-03
End Date
2011-05-08
Status
Closed
Released Data Link
Team
Principal Investigator