▎ 摘　　要

NOVELTY - A microorganism fuel battery carbon catalyst is formed by dry-mixing graphene nano platelets and metal phthalocyanine, heat-processing mixture in inert gas atmosphere, and carbonizing the mixture. The surface terminal nitrogen amount calculated using molar ratio (N) of the nitrogen atom with respect to all the elements of the carbon catalyst surface, and the sum total (N1+N2) of ratio (N1) of nitrogen atoms, and the ratio (N2) of nitrogen atoms by peak resolution of N1-s spectrum of X-ray photoelectron spectroscopy to total amount of nitrogen of carbon catalyst surface, is 1-13. USE - Carbon catalyst is used for catalyst ink and microbial fuel cell (all claimed). ADVANTAGE - The economical microorganism fuel battery carbon catalyst has high BET specific surface area and electronic conductivity without containing precious metal element. The microorganism fuel battery carbon catalyst provides microbial fuel cell having high oxygen reduction ability and electronic conductivity. The microorganism fuel battery carbon catalyst having high performance is manufactured by simple process without carrying out complex-drying process. DETAILED DESCRIPTION - A microorganism fuel battery carbon catalyst is formed by dry-mixing graphene nano platelets and metal phthalocyanine, heat-processing obtained mixture in inert gas atmosphere, and carbonizing the obtained mixture. When molar ratio of the nitrogen atom with respect to all the elements of the carbon catalyst surface measured by the X-ray photoelectron spectroscopy is set to N, and the sum total (N1+N2) (%) of ratio (N1) of nitrogen atoms, and the ratio (N2) of nitrogen atoms is calculated by peak resolution of N1-s spectrum of X-ray photoelectron spectroscopy to the total amount of nitrogen of the carbon catalyst surface, the surface terminal nitrogen amount which is calculated by formula: (Nx (N1+N2)), is 1-13. INDEPENDENT CLAIMS are included for the following: (1) manufacture of microorganism fuel battery carbon catalyst, which involves dry-mixing graphene nano platelets and metal phthalocyanine, heat-processing the mixture at 500-1000 degrees C in inert gas atmosphere, and carbonizing obtained mixture; and (2) microorganism fuel battery catalyst ink, which comprises microorganisms fuel battery carbon catalyst, binder and/or solvent.