Nanoscience and Microsystems ETDs

Publication Date

Spring 3-12-2025

Abstract

Nickel and platinum electrodeposits have numerous applications in corrosion and wear-resistant coatings, electronic connectors, heat resistance, metal finishings, and catalysts. The addition of additives can vastly change the morphology of the deposition. Electrokinetic parameters can be calculated by conducting rotating disk electrode (RDE) experiments along with Koutecky-Levich analysis. Significant challenges need to be addressed to deposit uniform films of Pt-Ni alloys from a single co-deposition bath. The main challenge is platinum’s catalytic property to reduce the overpotential for the hydrogen generation reaction. An Investigation into methanol and carbon monoxide’s hydrogen generation reaction suppression was conducted. Electrodeposition of nickel, platinum, and platinum-nickel, in both acetic acid and hydrochloric acid were analyzed using SEM, EDS, XRF, XRD, and XPS. A 2D COMSOL model of the nickel and platinum electrodepositions were compared to the experimental films.

Keywords

Electrodeposition, nickel, platinum, platinum-nickel, hydrogen suppression, palladium

Document Type

Dissertation

Degree Name

Nanoscience and Microsystems

Level of Degree

Doctoral

Department Name

Nanoscience and Microsystems

First Committee Member (Chair)

Fernando Garzon

Second Committee Member

Lok-Kun Tsui

Third Committee Member

Adrian Brearley

Fourth Committee Member

Shuya Wei

Fifth Committee Member

Jamin Pillars

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