Journal of Polymer Science Part A: Polymer Chemistry, Vol.55, No.3, 464-470, 2017
Block Copolymer Templated Carbonization of Nitrogen Containing Polymer to Create Fine and Mesoporous Carbon for Oxygen Reduction Catalyst
This study demonstrates the synthesis of mesoporous carbon materials utilizing the self-assembly of a block copolymer and its electrocatalytic activity for oxygen reduction. Fine and mesoporous carbon containing ferrum (Fe) and nitrogen (N) species has been successfully synthesized by multistep pyrolysis of a self-assembled imide film fabricated via a soft template approach. The obtained sample has well-ordered mesostructure accompanied by uniform pores with diameter of 4.8 nm and BET surface area of 1660 m(2) g(-1). This material is tough enough to retain its mesostructured even after mechanical ball milling, which will be essential in the application as a fuel cell catalyst. Promising catalytic activity for electrochemical oxygen reduction owing to enhanced mass transport has been demonstrated. (C) 2016 Wiley Periodicals, Inc.