Introductory information

  Filename (filenames correspond to the nomenclature used for the figures in the manuscript):

	Figure 5: in this file there are data of of the rate of oxygen exchange from PIE measurements of 1% Pd/ceria cubes and rods.
	Figure 6: in this file there are data of the isotopic oxygen fractions of 18O2 and 16O18O from PIE measurements of a) ceria cubes, b) ceria rods, c) 1% Pd/ceria cubes and d) 1% Pd/ceria rods at different temperatures.
	
  Dates of data collection:

March 2015 - November 2018

  Key words used to describe the data topic:

	pulsed isotopic exchange, isotopic oxygen fraction


Methodological information

  The surface incorporation or exchange rate (Ro) in Figure 5 has been calculated using Equation 1 following the procedure described within the manuscript.


Data-specific information

	Figure 5: 
		
		Temperature: the temperature the data were collected (Units:Kelvin)
		Ro: surface incorporation or exchange rate (Units: moles of oxygen per squere meter per second)

	Figure 6: 

		Temperature: Temperature: the temperature the data were collected (Units:degrees of Celcius)
		Isotopic oxygen fraction: Isotopic oxygen fractions of 18O2 and 16O18O from PIE measurements (Units: %)