title: Phosphorus-doped ordered mesoporous carbons with different lengths as efficient metal-free electrocatalysts for oxygen reduction reaction in alkaline media.
abstract: Phosphorus-doped ordered mesoporous carbons (POMCs) with different lengths were synthesized using a metal-free nanocasting method of SBA-15 mesoporous silica with different sizes as template and triphenylphosphine and phenol as phosphorus and carbon sources, respectively. The resultant POMC with a small amount of P doping is demonstrated as a metal-free electrode with excellent electrocatalytic activity for oxygen reduction reaction (ORR), coupled with much enhanced stability and alcohol tolerance compared to those of platinum via four-electron pathway in alkaline medium. Interestingly, the POMC with short channel length is found to have superior electrochemical performances compared to those with longer sizes.
authors.affiliation: Department of Advanced Materials Chemistry, Korea University, 2511 Sejong-ro, Sejong 339-700, Republic of Korea.
authors.forename: Dae-Soo
authors.initials: DS
authors.lastname: Yang
authors.forename: Dhrubajyoti
authors.initials: D
authors.lastname: Bhattacharjya
authors.forename: Shaukatali
authors.initials: S
authors.lastname: Inamdar
authors.forename: Jinsol
authors.initials: J
authors.lastname: Park
authors.forename: Jong-Sung
authors.initials: JS
authors.lastname: Yu