| |
 |
UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:26 |
 |
|
|
|
Conference: Bucharest University Faculty of Physics 2024 Meeting
Section: Physics and Technology of Renewable and Alternative Energy Sources
Title:
Exploration of the Electrocatalytic Oxidation Processes of Urea in Fuel Cells
Authors:
Adina Diana DOBRIN
*
Affiliation:
University of Bucharest, Faculty of Physics, 405 Atomiștilor str., PO Box MG-38, Bucharest-Măgurele, Romania
E-mail
dadinadiana1999@yahoo.com
Keywords:
urea, electrocatalysts, fuel cells
Abstract:
In the current context concerning pollution and environmental protection, the need for efficient valorization of alternative sources has emerged. Urea, a common by-product in agriculture, industry, and human activity, presents significant opportunities for valorization as an energy source, as well as for the production of useful secondary products such as hydrogen and nitrogen. Catalysts play a crucial role in this process, improving the efficiency and selectivity of urea decomposition reactions. This paper provides an overview of recent progress in the development and application of catalysts for urea decomposition, discussing both platinum-based catalysts, which have demonstrated excellent performance in terms of activity and stability, but the high cost of these metals is limiting their applicability on a large scale, and non-platinum metal-based catalysts, such as nickel, which offer a balance between performance and cost, as well as composite material catalysts, which combine the advantages of different materials to improve performance. Another topic addressed is the mechanisms that occur in the urea decomposition process and the factors influencing catalyst performance, including composition, structure, particle size, and reaction conditions. Finally, we identify current challenges and future research directions in this field, including the need to develop more efficient and durable catalysts, to better understand reaction mechanisms, and to optimize reaction conditions to maximize energy production and useful secondary products.
References:
[1] Sayed, E. T., Eisa, T., Mohamed, H. O., Abdelkareem, M. A., Allagui, A., Alawadhi, H., & Chae, K. J. (2019). Direct urea fuel cells: Challenges and opportunities. Journal of Power Sources, 417, 159-175.
[2] Xu, W., Wu, Z., & Tao, S. (2016). Urea‐based fuel cells and electrocatalysts for urea oxidation. Energy Technology, 4(11), 1329-1337.
[3] Marken, F., Neudeck, A., & Bond, A. M. (2010). Cyclic voltammetry. Electroanalytical Methods: Guide to Experiments and Applications, 57-106.
|
|
|
|