Author

Tianyu Zhu

Date of Award

Fall 2019

Document Type

Open Access Dissertation

Department

Chemistry and Biochemistry

First Advisor

Chuanbing Tang

Second Advisor

Brian C. Benicewicz

Abstract

Metal-containing polyelectrolytes (or metallo-polyelectrolytes) represent a new class of polymeric materials with distinct properties compared to traditional organo- polyelectrolytes or neutral metallopolymers. This emerging class of synthetic materials is ubiquitous for a myriad of utilities ranging from traditional electrolyte chemistry to biomedicals to sustainable applications, to name just a few. This dissertation work is focused on the design, synthesis, characterization and application of advanced metallo- cations and metallo-polyelectrolytes for energy storage applications. First, a template method to prepare metallo-polyelectrolytes based on cationic cobaltocene and polyethylene backbone was described. The resulting membranes are mechanically tough, ionically conductive and chemically inert. Second, a family of substituted cobaltocenium cations and their derivatives was designed by theoretical calculation and experimentally synthesized for the first time. The redox behaviors and chemical stability of these metallo- cations were systematically examined and complemented those of state-of-the-art organic cations. Furthermore, substituted cobaltocene cation was integrated to construct solid polyelectrolyte membranes for energy storage devices (e.g. solid-state alkaline fuel cells). The device performance of these polyelectrolytes under highly basic and oxidative environments is also discussed.

Available for download on Wednesday, December 16, 2020

Included in

Chemistry Commons

Share

COinS