what is the atomic ratio of Rh:Pt? If you want to coat 1)1 layer of Pt...

what is the atomic ratio of Rh:Pt?
If you want to coat
1)1 layer of Pt
2)0.5 layer of Pt
on the Rh cube that is 7nm size cube and the structure is FCC.

Expert Solution

Platinum is a completely white metal and platinum has no need to coating, whereas rhodium is one of the metal which is coated by a bright white layer of platinum.

The FCC structure is a close-cubic structure. It has some voids like tetrahedral and octahedral void which is given by,

There are two types of FCC structure that is ABAB type and ABCABC type and both have coordination no. 12 is as follows:

FCC structure has 74% packing fraction.

If we want to coat 1 layer of platinum on 7 nm size rhodium cube we have to dip rhodium into platinum approximately above 10 micrometer volume.

and if we want to coat 0.5 layer of platinum on 7 nm size rhodium cube we have to dip rhodium into platinum approximately lower than 10 micrometer volume.

queen_honey_blossom answered 2 years ago

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