CATALYST SUBSTRATE COMPOSITE, AND ELECTRODE FOR TREATING ORGANIC WASTE WATER AND ORGANIC WASTE WATER TREATMENT SYSTEM USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an organic waste water treatment system good in oxygen reduction performance by using a catalyst substrate composite containing nitrogen in an expanded graphite for a cathode.SOLUTION: There is provided a catalyst substrate composite having a substrate 201 consisting of an expanded graphite and a catalyst 202 carried between layers of the expanded graphite, where the catalyst is carbon containing nitrogen, bulk density of the expanded graphite is 0.1 to 1.4 g/cm3 and content of the nitrogen to the content of the carbon in the catalyst is 0.005 to 0.3 atom%. There is provided a catalyst substrate composite having an R value by a Raman analysis of more than 1.1 and a half width of Grand HH00 of 14≤HHHDD≤100 cm.SELECTED DRAWING: Figure 2