Fe-based dual-atom catalysts for the oxygen reduction reaction
Literature Information
Wuyi Zhang, Shiyuan Yi, Yihong Yu, Anthony Kucernak
The oxygen reduction reaction (ORR) is widely employed at the cathode of next-generation energy devices such as fuel cells and metal–air batteries to accommodate electrons produced by anode reactions. The development of highly efficient and durable electrocatalysts for the ORR has been constrained by the involvement of multiple oxygen-containing intermediates and their scaling relations. Recently, dual-atom catalysts (DACs) supported on carbon materials have been intensively studied as ORR electrocatalysts due to their potential to precisely tune the adsorption/reactive performance of each metal site. In particular, Fe-based DACs exhibit outstanding ORR activities, holding great promise as substitutes for state-of-the-art Pt-based catalysts. However, the adjustment of the microenvironment of metal sites, loading density, scaling relation limitation, and excessively strong adsorption energy pose limitations on the practical applications of Fe-based DACs. To promote studies of Fe-based DACs, we summarize the current research status in this review by focusing on (1) the fundamental of the ORR and effects of Fe-based DACs, (2) common synthesis strategies of Fe-based DACs, and (3) ORR performance evaluations of Fe-based DACs. Additionally, this review provides our viewpoint on future directions and possible strategies to design catalysts for further optimization of the ORR.
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Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment











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