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
Keywords
Supercapacitor, HER, OER, multifunctional electrocatalyst
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.
Recommended Citation
Lin, Wang, "MULTIFUNCTIONAL CARBON-SUPPORTED COBALT-NICKEL COMPOUNDS FOR WATER SPLITTING AND ENERGY STORAGE APPLICATIONS" (2022). Electronic Theses & Dissertations. 393.
https://digitalcommons.pittstate.edu/etd/393
