Event Title

Reliable synthesis of block copolymer templated bimetallic nanoparticles

Research Mentor(s)

David Rider

Description

The development of cheaper and easier to manufacture direct methanol fuel cells (DMFC) is an important step towards a methanol economy, and towards a reduced dependence on fossil fuels. Platinum plays a crucial role as a catalyst in DMFC devices but is expensive, is prone to CO poisoning, and suffers from other significant disadvantages when used as a monometallic catalyst. Block copolymers (BCP) offer an effective and accessible means of constructing thin layer multi-​metallic catalysts with tunable nanomorphologies. While the loading of single metals onto BCPs has been proven, the ability to precisely load two or more metals at a desired ratio with a high degree of repeatability is of importance if this technol. is to make it to large scale manufg. Through the characterization of device arrays via XPS, inductively coupled plasma mass spectrometry (ICP-​MS)​, atomic force microscopy (AFM)​, transmission and SEM (TEM and SEM) the Rider group hopes to build a standardized model for tuning metal ratios in bimetallic nanoparticles.

Document Type

Event

Start Date

May 2018

End Date

May 2018

Location

Chemistry

Rights

Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this document for commercial purposes, or for financial gain, shall not be allowed without the author’s written permission.

Language

English

Format

application/pdf

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May 17th, 12:00 PM May 17th, 3:00 PM

Reliable synthesis of block copolymer templated bimetallic nanoparticles

Chemistry

The development of cheaper and easier to manufacture direct methanol fuel cells (DMFC) is an important step towards a methanol economy, and towards a reduced dependence on fossil fuels. Platinum plays a crucial role as a catalyst in DMFC devices but is expensive, is prone to CO poisoning, and suffers from other significant disadvantages when used as a monometallic catalyst. Block copolymers (BCP) offer an effective and accessible means of constructing thin layer multi-​metallic catalysts with tunable nanomorphologies. While the loading of single metals onto BCPs has been proven, the ability to precisely load two or more metals at a desired ratio with a high degree of repeatability is of importance if this technol. is to make it to large scale manufg. Through the characterization of device arrays via XPS, inductively coupled plasma mass spectrometry (ICP-​MS)​, atomic force microscopy (AFM)​, transmission and SEM (TEM and SEM) the Rider group hopes to build a standardized model for tuning metal ratios in bimetallic nanoparticles.