ScOx rich surface terminations on lanthanide scandate nanoparticles

Mansley, Z. R.; Paull, R. J.; Greenstein, E. P.; Wen, J. G.; Poeppelmeier, K. R.; Marks, L. D.

doi:10.1103/physrevmaterials.5.125002

ScO_x rich surface terminations on lanthanide scandate nanoparticles

Journal Article · Thu Dec 23 00:00:00 EST 2021 · Physical Review Materials

DOI:https://doi.org/10.1103/physrevmaterials.5.125002· OSTI ID:1845692

^[1]; ^[1]; ^[1]; Wen, J. G. ^[2]; Poeppelmeier, K. R. ^[1]; ^[1]

Northwestern Univ., Evanston, IL (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)

We report that the lanthanide scandate materials are widely used substrates for thin film growth and the potential applications of the LnScO₃ materials continue to grow with the recent ability to synthesize them as cuboidal faceted nanoparticles. A comprehensive understanding of the surface structure and chemistry of these oxides is essential for their informed application, either as single crystal or high surface area nanoparticle substrates. Here the {100} pseudocubic surfaces of LnScO₃ (Ln = La, Nd, Sm, Gd) nanoparticles were examined with aberration-corrected electron microscopy and higher-level density functional theory to reveal ScO_x rich terminations across all investigated surfaces. Mixed terminations of single and double layer nature were observed, indicating the presence of multiple domains at the surface and introducing the possibility of synthetically controlling the surface reconstruction in the future.

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: Institute for Catalysis in Energy Processes (ICEP); USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-06CH11357; FG02-03ER15457

OSTI ID:: 1845692

Journal Information:: Physical Review Materials, Journal Name: Physical Review Materials Journal Issue: 12 Vol. 5; ISSN 2475-9953

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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