TY - JOUR T1 - Design and synthesis of carbonized polypyrrole-coated graphene aerogel acting as an efficient metal-free catalyst for oxygen reduction JO - RSC Adv. PY - 2014/01/01 AU - Wei H AU - Xu M-W AU - Bao S-J AU - Yang F AU - Chai H ED - DO - DOI: 10.1039/c4ra00015c PB - Royal Society of Chemistry (RSC) VL - 4 IS - 33 SP - 16979 EP - 16984 Y2 - 2025/04/05 ER -