NOVELTY - Preparation of porous, carbon and titanium oxide (A) containing particles (I), comprises forming a dispersion from carbonizable polymer (B), surfactant and titanium alkoxide in a fluid medium; evaporating the fluid medium in order to obtain a material, which is in the form dispersed cluster from polymer based on carbon, surfactant and (A); heating the material for stepwise decomposition and evaporation of the surfactant and alkoxide residues; and further heating the material to carbonize (B) and to obtain a porous composite from dispersed carbon and (A).    USE - (I) is useful in a carrier catalyst, which is useful in polymer electrolyte membrane-fuel cells (all claimed).    ADVANTAGE - The carrier catalyst is long-term stable in polymer electrolyte membrane-fuel cells. The catalyst metal has no carbon corrosion in fuel cells. The polymer electrolyte fuel cell containing the carrier catalyst exhibits good electroconductivity.    DETAILED DESCRIPTION - Preparation of porous, carbon and titanium oxide (A) containing particles (I), comprises forming a dispersion from carbonizable polymer (B), surfactant and titanium alkoxide in a fluid medium, where the amount of (B) and alkoxide are adjusted to provide a desired carbon/titanium-ratio in (I); evaporating the fluid medium in order to obtain a material, which is in the form dispersed cluster from polymer based on carbon, surfactant and (A); heating the material for stepwise decomposition and evaporation of the surfactant and alkoxide residues and further heating the material to carbonize (B) and to obtain a porous composite from dispersed carbon and (A). INDEPENDENT CLAIMS are included for:    (1) a carrier catalyst comprising a particle shaped catalyst carrier material having a high specific surface area, where the particle comprises a mixture of carbon and titanium dioxide; and    (2) a polymer electrolyte membrane-fuel cell comprises electrode for the reduction of oxygen, where the electrode comprises the catalyst carrier particle.