Engineering Active Sites in Single-Atom Catalysts for Enhanced Oxygen Reduction Reaction: Strategies and Outlook
Source abstract
Abstract
Carbon-based single-atom catalysts (SACs) combine the advantages of atomic efficiency and unique electronic configuration, making them promising candidates for next-generation oxygen reduction reaction (ORR) catalysts. Despite their notable catalytic properties, a performance gap still exists between SACs and platinum-group-metal (PGM) catalysts. Generally, two primary strategies are employed to develop high-performance SACs: increasing the density or accessibility of active sites and enhancing their intrinsic activity. This Perspective examines various approaches to improve the electrocatalytic performance of SACs for the ORR, with a focus on active site engineering. We discuss methods to increase the number or accessibility of active sites along with an overview of key synthesis techniques. Additionally, we explore strategies to boost the intrinsic activity of these sites such as incorporating synergistic elements that modulate electronic structures and optimize intermediate adsorption and desorption. Finally, we highlight the remaining challenges and prospects for advancing SACs in the ORR applications.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Water Pollution Control and Green Resource Recycling, State Key Laboratory of Analytical Chemistry for Life Science, Frontiers Science Center for Critical Earth Material Cycling, School of the Environment, School of Chemistry and Chemical Engineering
Nanjing University
School of Mechanical and Materials Engineering
Washington State University
Department of Chemistry and Geochemistry
Jacksonville State University
State Key Laboratory of Flexible Electronics & Institute of Advanced Materials (IAM)
Nanjing University of Posts & Telecommunications
Funding
Natural Science Foundation of Jiangsu Province · Nanjing University of Posts and Telecommunications · Jiangsu Agricultural Science and Technology Innovation Fund · National Natural Science Foundation of China · Washington State University · Jiangsu Province · Key Laboratory for Organic Electronics and Information Displays, Nanjing University of Posts and Telecommunications · Joint Center for Deployment and Research in Earth Abundant Materials, Washington State University
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