Synthesis of nitrogen-doped mesoporous carbon spheres with extra-large pores through assembly of diblock copolymer micelles.
The synthesis of highly nitrogen-doped mesoporous carbon spheres (NMCS) is reported. The large pores of the NMCS were obtained through self-polymerization of dopamine (DA) and spontaneous co-assembly of diblock copolymer micelles. The resultant narrowly dispersed NMCS possess large mesopores (ca. 16 nm) and small particle sizes (ca. 200 nm). The large pores and small dimensions of the N-heteroatom-doped carbon spheres contribute to the mass transportation by reducing and smoothing the diffusion pathways, leading to high electrocatalytic activity.
World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan) http://www.yamauchi-labo.com; Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555 (Japan).
Jing
J
Tang
Jian
J
Liu
Cuiling
C
Li
Yunqi
Y
Li
Moses O
MO
Tade
Sheng
S
Dai
Yusuke
Y
Yamauchi
D002244:Carbon / Q000737:chemistry*; D008823:Micelles; D008855:Microscopy, Electron, Scanning; D009584:Nitrogen / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*
D008823:Micelles; D011108:Polymers; D002244:Carbon; D009584:Nitrogen
carbon spheres; large-sized mesopores; mesoporous materials; micelles; oxygen reduction reaction