A synthetic strategy for graphitized carbon hollow nanospheres with nano-punched holes decorated with bimetallic selenide as efficient bifunctional electrocatalysts for rechargeable Li–O₂batteries

Abstract

The development of efficient bifunctional electrocatalysts is important for improving the electrochemical performance of Li–O2 batteries (LOBs). Herein, porous graphitized carbon hollow nanospheres (denoted PGHs) with nano-punched hole containing suitable...

Optimized lithium deposition on Ag nanoparticles-embedded TiO2 microspheres: a facile spray pyrolysis approach for enhanced lithium metal anode

“…The use of alloying-type materials such as Ag, Au, and Sn as lithium deposition sites can lower the lithium nucleation overpotential because of their highly lithiophilic nature. 10,[28][29][30][31][32] Ag nanoparticles can form Li-Ag alloys during lithium deposition and function as lithiophilic seeds, leading to selective lithium nucleation and deposition. In other words, the Ag nanoparticles located inside the 3D scaffold react with lithium ions directly to produce solid-solution alloys during the initial phase of electrodeposition, and the solid-solution alloys facilitate efficient lithium deposition onto the 3D scaffold.…”