Metal-free carbon catalysts (MFCCs) are one of the commonly used catalysts for electrocatalytic two-electron oxygen reduction (2e– ORR) synthesis of hydrogen peroxide (H2O2). Oxygen doping is an ...

China has successfully test-flown its new Feitian 2 hypersonic vehicle, a major leap in its aerospace technology that was ...

Feitian-2 has several additions as compared to its predecessor, Feitian-1. It features larger tail fins, and new wings just in front of the rocket's nose, improving the stability and maneuverability ...