Catalyst degradation Ostwald ripening

Of importance to fuel cell applications is the electron conductivity of carbons, when used as electron pathway in the porous electrode. Moreover, their functional groups with respect to hydrophobicity and water transport phenomena are also important. Also their defect density plays a role, when these defects function as nucleation sites during the synthesis of nanoparticulate catalysts and also when anchoring the particles to hinder Ostwald ripening during degradation. This chapter is further subdivided into three parts corresponding to the carbon s three main functions in polymer electrolyte membrane fuel cell (PEMFC) ... 

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