TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: The fuel oxidation facilitator is made and arranged to prevent flow between the fuel and fluid anode during fuel cell operation. The fuel oxidation facilitator includes portion(s) physically separating a fuel from a fluid anode during fuel cell operation. The fuel oxidation occurs across the above mentioned portion(s). The fuel oxidation facilitator separates a fuel from fluid anode during fuel cell operation. The fuel oxidation facilitator includes pore(s) of dimension allowing physical contact between the fuel and anode under operation conditions of fuel cell. The fuel oxidation facilitator includes section separating fuel and liquid anode. The entire section comprises porous article including pores of dimension allowing physical contact between the fuel and anode under operating condition of fuel cell. The fuel oxidation facilitator defines portion of anode compartment. The fuel cell is arranged and constructed so that fuel cell oxidation facilitator or its portion(s) is the sole fuel cell component separating an anode in the anode compartment from fuel provided in the fuel manifold. The fuel oxidation facilitator defines a portion of the fuel manifold. The fuel facilitator comprises mixed ion/electron conductor. The fuel oxidation facilitator includes ionically conductive portion(s). The fuel cell also comprises fuel. The portion of the fuel is a gas under operating conditions of the fuel cell. The fuel oxidation facilitator is cylindrical. The fuel manifold includes or is connected to an exhaust conduit. The cell also comprises fuel delivery conduit with exit for delivery of fuel at an end of the fuel manifold opposite the exhaust end, and auxiliary electrical circuit made and arranged to drive oxidant towards fuel across the oxidation facilitator. A portion of the anode is solid under operating conditions of fuel cell. The fuel facilitator is made and arranged to prevent flow between fuel and fluid anode during fuel cell operation. The fuel oxidation facilitator includes portion(s) able to physically separate a fuel from a fluid anode during fuel cell operation. The oxidation facilitator includes porous open channels allowing physical contact between the fuel and anode. The oxidation facilitator prevents liquid anode physical flow into the fuel compartment and prevents accumulation of metal anode outside the anode compartment. The fuel is hydrogen. The anode is liquid metal.Preferred Process: The process also comprises allowing oxidation of gaseous fuel to occur across an oxidation facilitator preventing the liquid anode form flowing or migrating into the fuel compartment during operation.