Trace Cr(OH)3 modified α-MnO2 electrocatalyst intercalated by Ag+ with superior activity and stability for oxygen reduction reaction

Synthesis of MnOOH and its application in a supporting hexagonal Pd/C catalyst for the oxygen reduction reaction

“…22,23 At the same time, manganese dioxide has the advantages of rich reserves, low preparation cost, environmental friendliness (low toxicity), etc. 24 At present, a large number of publications have reported that manganese dioxide crystals with different particle sizes and specific morphologies can be obtained by adjusting the conditions of experimental preparation. 25 Manganese dioxide nanomaterials have complex morphological characteristics such as lines, flowers, tubes, balls, etc .…”