Method of making a nanostructured electrode

Details Method of making a nanostructured electrode Method of making a nanostructured electrode

2006-08-25

2010-12-28

Hailey, Patricia L (Department: 1793)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Making catalytic electrode, process only

C502S150000, C502S162000, C502S167000, C502S185000, C429S524000, C977S882000, C977S883000

Reexamination Certificate

active

07858550

ABSTRACT:
A method of making a nanostructured electrode comprising depositing a self-assembled monolayer on a substrate, depositing a catalyst nanoparticle covalently bonded to a ligand, and depositing a material capable of binding to the self-assembled monolayer. The method includes depositing on a conductive electrode substrate a catalytic nanoparticle stabilized by a covalently-bound ligand bearing a peripheral functional group and depositing a material capable of binding to the peripheral functional group, wherein the conductive electrode substrate is chemically modified to create a surface functional group capable of supporting multilayer deposition. The method can include covalent grafting of a functional group to create an initial layer of positive charge on the surface, depositing a platinum nanoparticle stabilized by negatively-charged ligands onto the functional group, and providing a polymer component. The ligand can have a peripheral functional group that has a charge opposite to or chemical reactivity amenable with that of the self-assembled monolayer. The material capable of binding to the peripheral functional group is such that successive layers of the catalytic nanoparticle within a multilayered system are bridged by the material. The material can be selected from semiconductors, RuO2, ITO, TiO2, surface oxidized carbon colloid, polyoxometalate, and metal ions.

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