Finally, it can be advantageous for the palladium rhodium mesh to contain an additional metal from the group consisting of iridium, ruthenium, rhenium, cobalt, nickel, copper, and gold to increase the mechanical stability of {HEAD ~ the palladium rhodium catalyst mesh elements} without interfering with {TAIL ~ their catalytic function} 
Finally , it can be advantageous for the palladium rhodium mesh to contain an additional metal from the group consisting of iridium , ruthenium , rhenium , cobalt , nickel , copper , and gold to increase the mechanical stability of { HEAD ~ the palladium rhodium catalyst mesh elements } without interfering with { TAIL ~ their catalytic function }
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