Carbon catalyst for microbial fuel cell and method for producing the same, catalyst ink, and microbial fuel cell

摘要

PROBLEM TO BE SOLVED: To provide: an inexpensive carbon catalyst including a carbon carrier high in electron conductivity and large in specific surface area, as an alternative to a noble metal catalyst of which the consumption needs to be reduced from the viewpoint of cost, resources and the like; a catalyst ink arranged by use of such a carbon catalyst; and a fuel battery.SOLUTION: A carbon catalyst for a microbial fuel battery is obtained by the step of mixing a graphene nano-platelet and metal phthalocyanine in a dry manner into a mixture, and the step of carbonizing the mixture by performing a thermal treatment on the mixture in an inert gas atmosphere. Supposing the molar ratio of nitrogen atoms to all of elements on the surface of the carbon catalyst is represented by (N), which was measured by X-ray photoelectron spectroscopy(XPS), and the sum total (%) of the percentage of the amount of N1 type nitrogen atoms determined by peak separation from XPS N1s spectra, and the percentage of the amount of N2 type nitrogen atoms to a total nitrogen amount in the surface of the carbon catalyst is represented by (N+N), a surface terminal nitrogen amount {N×(N+N)} is 1-13.SELECTED DRAWING: None