Synthesis of P- and N-doped carbon catalysts for the oxygen reduction reaction via controlled phosphoric acid treatment of folic acid

• Rieko Kobayashi,
• Takafumi Ishii,
• Yasuo Imashiro and
• Jun-ichi Ozaki

Beilstein J. Nanotechnol. 2019, 10, 1497–1510, doi:10.3762/bjnano.10.148

• Holdings Inc., 2-31-11, Nihonbashi Ningyo-cho, Chuo-ku, Tokyo 103-8650, Japan 10.3762/bjnano.10.148 Abstract Herein, we synthesized P- and N-doped carbon materials (PN-doped carbon materials) through controlled phosphoric acid treatment (CPAT) of folic acid (FA) and probed their ability to catalyze the

• acid; oxygen reduction reaction; phosphoric acid treatment; PN-doped carbon catalysts; polymer electrolyte fuel cells; Introduction The widespread application of fuel cells as clean energy sources is the most desirable way of realizing a low-CO2-emission society. In conventional polymer electrolyte

• , i.e., employ special compounds or their combinations as starting materials. Herein, to establish a more generalized PN-doping method allowing for the use of more common compounds, we developed the technique of controlled phosphoric acid treatment (CPAT) that is potentially applicable to non-special N