Abstract: The present invention provides an electrically conductive material having excellent resistance to a high potential and strongly acidic environment and high electrical conductivity; and an electrode material and a fuel cell each including the same. The present invention also provides a method for simply and easily producing such an electrically conductive material. The present invention relates to an electrically conductive material including a titanium suboxide particulate powder, the titanium suboxide particulate powder including a rutile crystalline phase as a main phase, and having a composition of TiOn wherein n is 1.5 or more and 1.90 or less, and a brightness L* in the L*a*b*color system of 35 to 45.

Abstract: The present invention provides an electrically conductive material having excellent resistance to a high potential and strongly acidic environment and high electrical conductivity; and an electrode material and a fuel cell each including the same. The present invention also provides a method for simply and easily producing such an electrically conductive material. The present invention relates to an electrically conductive material including a titanium suboxide particulate powder, the titanium suboxide particulate powder including a rutile crystalline phase as a main phase, and having a composition of TiOn wherein n is 1.5 or more and 1.90 or less, and a brightness L* in the L*a*b*color system of 35 to 45.

Abstract: The present invention provides a highly conductive electrode material having high oxygen reduction activity. The present invention also provides an electrode material composition and a fuel cell each containing the electrode material. The present invention relates to an electrode material having a structure containing a noble metal and/or an oxide thereof supported on titanium oxynitride or a composite compound of titanium oxynitride and an oxide of titanium. The titanium oxynitride or the composite compound of titanium oxynitride and an oxide of titanium is in the form of powder. The electrode material has pore diameter distribution satisfying the following features (I) and (II): (I) a ratio (b/a) of a peak area b in a pore diameter range of 50 to 180 nm to a peak area a in a pore diameter range of 0 to 180 nm, calculated from log differential pore volume distribution, being 0.9 or more, and (II) a cumulative pore volume in a pore diameter range of 50 to 180 nm being 0.1 cm3/g or greater.

Abstract: The present invention provides an electrode material having excellent resistance to a high potential and strongly acidic environment, high conductivity, and excellent electrochemical properties; and a fuel cell including the same. The present invention also provides a method for simply and easily producing such an electrode material. The present invention relates to an electrode material containing: a titanium suboxide carrier whose crystal phase is single-phase Ti4O7 and having a specific surface area of 10 m2/g or more; and a noble metal and/or its oxide supported on the carrier.