Date of Award

Spring 5-10-2022

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Physics

First Advisor

Dr. Ram Gupta

Second Advisor

Dr. Khamis Siam

Third Advisor

Dr. Serif Uran

Abstract

In order to effectively reduce carbon emission and achieve the goal of mitigating climate change, hydrogen energy has high hopes as a representative of green energy. According to the most current and updated research, compounds of cobalt and nickel have been widely studied as alternatives instead noble metal materials as catalysts for the electrolysis of water. Based on some other research reports, a hydrothermal method to grow cobalt-nickel hydroxide on nickel foam that has been carbonized in advance was proposed. To compare the modification results of these materials by different activation methods, calcination, sulfidation, and phosphating were performed on the materials. Among all the samples, the phosphate material not only had a superior performance compared to commercial materials in the catalytic reaction of hydrogen evolution and oxygen evolution, but also exhibited a satisfactory performance as an energy storage material for supercapacitor applications. In addition, an electrochemical synthesis method was used to simplify the synthesis steps of cobalt-nickel compounds and calcination, sulfidation, and phosphating were performed on the materials, respectively. The result shows that the cobalt-nickel phosphide material synthesized by electrochemical synthesis method has great potential in the field of flexible supercapacitors.

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.