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There are still many problems that hinder the development of sodium‐ion batteries (SIBs), including poor rate performance, short‐term cycle lifespan, and inferior low‐temperature property. Herein, excellent Na‐storage performance in fluorophosphate (Na3V2(PO4)2F3) cathode is achieved by lattice regulation based on charge balance theory. Lattice regulation of aliovalent Mn2+ for V3+ increases both...
The rational design of catalytically active sites in porous materials is essential in electrocatalysis. Herein, atomically dispersed Fe‐Nx sites supported by hierarchically porous carbon membranes are designed to electrocatalyze the hydrazine oxidation reaction (HzOR), one of the key techniques in electrochemical nitrogen transformation. The high intrinsic catalytic activity of the Fe‐Nx single‐atom...
In article number 2002203, Tian Sheng, Shu‐Hui Sun, Jiayin Yuan, and co‐workers propose and verify atomically dispersed pyrrole‐type Fe‐N4 sites supported on hierarchically porous carbon membranes as real active sites for the electrochemical hydrazine oxidation reaction (HzOR), which will open up the future exploration of the metal‐Nx catalysts for HzOR in fuel cells and beyond.
Metal nanocrystals (NCs) are grown directly on the surface of reduced graphene oxide (rGO), which can maximize the rGO‐NCs contact/interaction to achieve the enhanced catalytic activity. However, it is difficult to control the size and morphology of metal NCs by in situ method due to the effects of functional groups on the surface of GO, and as a result, the metal NCs/rGO hybrids are conventionally...
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