Porous PdZn bimetallene for oxygen reduction electrolysis

Polyethylenimine-Ethylenediamine-Induced Pd Metallene toward Alkaline Oxygen Reduction

“…The oxygen reduction reaction (ORR) is an important half-reaction in fuel cells that has attracted intensive attention in the past decades, − but its slow reaction kinetics requires high overpotentials, and the design of efficient cathode catalysts for ORR remains one of the main challenges. − So far, Pt-based catalysts are recognized as highly active ORR electrocatalysts, but the easy poisoning of Pt limits their large-scale application. − In recent years, Pd is expected to replace Pt as an ORR electrocatalyst due to similar electronic structure with Pt and high stability. − However, the low oxygen adsorption of Pd leads to unsatisfied catalytic activity for the ORR. , As such, it is still necessary to design advanced electrocatalysts to boost ORR activity.…”

B-Doping-Induced Lattice Expansion of Pd Metallene Nanoribbons for Oxygen Reduction Reaction

“…Among the various promising energy conversion systems, fuel cells have received widespread research interest as a result of their sustainable advantages and high power density. − In spite of their unique properties, the inherently slow kinetics of oxygen reduction reaction (ORR) has been a significant obstacle to their extensive commercialization. − Up to now, Pt-based materials are recognized as superior electrocatalysts for ORR because of their intrinsic properties, but the scarcity and easy poisoning of Pt severely restrict their large-scale implementation in these sustainable energy conversion systems. , Therefore, non-Pt nanomaterials have been explored as highly effective ORR catalysts. Among the variety of non-Pt metals, Pd possesses an electronic configuration similar to that of Pt and offers better resistance to poisoning, making it a promising substitute for Pt. , Nonetheless, the stronger adsorption strength that occurs between oxygen-containing intermediates and Pd leads to inferior ORR properties of Pd-based catalysts. − Hence, reducing the adsorption strength of key intermediates on Pd is highly desired.…”

Metal–metalloid alloys: mesoporous Rh–Te films for electrocatalytic nitrogen fixation

“…28,29 Among various material structures, porous nanostructures have promising applications in electrocatalytic applications, which can expose more active sites and provide facilitated mass/charge transfer, leading to enhanced electrolytic performance. 30–35 The common methods for preparing porous metal materials generally consist of hard templating and dealloying. 36–38 However, these methods usually suffer from complex synthesis processes and environmental risks.…”