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This text describes the data presented in the paper: Crystal structure and surface characteristics of Sr-doped GdBaCo2O6-d double perovskites: oxygen evolution reaction and conductivity 

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Introductory information
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Files included in the data deposit (include a short description of what data are contained): 

1) X-ray diffraction (XRD) data
2) X-ray photoelectron spectroscopy (XPS) data
3) Low energy ion spectroscopy (LEIS) data - integration


Explain the relationship between multiple data sets, if required: -



Key words used to describe the data:
diffraction, spectroscopy



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Methodological information
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A brief method description – what the data is, how and why it was collected or created, and how it was processed:



Instruments, hardware and software used: 
1) XRD - PANalytical X'Pert Pro MPD using Cu Ka radiation with a step size of 0.016 deg and counting time of 0.8 s per step
2) XPS - Thermo Scientific K-Alpha+ with Al Ka radiation. 20 and 15 eV pass energy was used for the core level and valence band spectra, respectively.
3) LEIS - Qtac100 with 5 keV Ne+ primary beam and 0.25 keV Ar+ sputter beam. 


Date(s) of data collection: 
Year 2014 - 2016


Geographic coverage of data: -



Data validation (how was the data checked, proofed and cleaned): Raw data is presented together with the integrated data for LEIS.



Overview of secondary data, if used: -



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Data-specific information
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Definitions of names, labels, acronyms or specialist terminology uses for variables, records and their values:
GBCO - GdBaCo2O6-d
GB9S1CO - GdBa0.9Sr0.1Co2O6-d
GB8S2CO - GdBa0.8Sr0.2Co2O6-d
GB7S3CO - GdBa0.7Sr0.3Co2O6-d
GB6S4CO - GdBa0.6Sr0.4Co2O6-d
GB5S5CO - GdBa0.5Sr0.5Co2O6-d


Explanation of weighting and grossing variables: -



Outline any missing data: -



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Contact
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Please contact rdm@ncl.ac.uk for further information