Enhancing oxygen reduction activity of α-MnO2 by defect-engineering and N doping through plasma treatments

NH3 plasma-etching-derived porous N-doped carbon nanotubes with FeP nanoparticles and intrinsic carbon defects for boosting oxygen reduction in rechargeable Zn–air batteries

“…Plasma etching has been developed as an efficient technology for introducing intrinsic defects into the matrix. 31,32 On the other side, transition metal-based compounds, including oxides, oxyhydroxides, nitrides, sulfides and phosphides, have also behaved as promising substitutes for Pt-based ORR electrocatalysts. 9,[33][34][35][36] Because of the modest electronegativity discrepancy between P and many transition metal (TM) elements, both of which are endowed with partial charge in transition metal phosphide (TMPs) nanostructures displaying glorious electrochemical performance.…”

“…Plasma etching has been developed as an efficient technology for introducing intrinsic defects into the matrix. 31,32…”