Zinc Adsorption and Hydration Structures at Yttria-Stabilized Zirconia Surfaces
[1];
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[2]
- Carnegie Inst. of Washington, Argonne, IL (United States). Geophysical Lab., High Pressure Collaborative Access Team (HPCAT)
- Ulsan National Inst. of Science and Technology, Ulsan (South Korea). Dept. of Nuclear Engineering, School of Mechanical, Aerospace, and Nuclear Engineering
- Pusan National Univ., Busan (Korea, Republic of). School of Mechanical Engineering
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Korea Advanced Inst. Science and Technology (KAIST), Daejeon (Korea, Republic of). Dept. of Materials Science and Engineering
Zinc adsorption and interfacial hydration on yttria-stabilized zirconia (YSZ) surfaces in contact with aqueous zinc solutions at room temperature and neutral pH have been probed, with combined specular high-resolution X-ray reflectivity and element-specific (Zn) resonant anomalous X-ray reflectivity techniques. The total and partial zinc-Specific electron density profiles in the surface normal direction show the detailed interfacial hydration structures with zinc adsorption: Strongly depending on its crystallographic orientations, the YSZ (110) surface adsorbs zinc species only within adsorbed water layers above the terminal plane, while on (111) surface, zinc further-penetrates the substrate (below the terminal plane). Considering that both surfaces are enriched with oxygen vacancies and metal-depleted sites; on which chemisorbed water species are expected, the observed contrast indicates that specific zinc adsorption is controlled strongly by the intrinsic surface chemistry that results from orientation-dependent interfacial structures.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); Korea Institute of Energy Technology Evaluation and Planning (KETEP); USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC02-06CH11357; NA0001974; FG02-99ER45775
- OSTI ID:
- 1467891
- Journal Information:
- Journal of Physical Chemistry. C, Vol. 121, Issue 39; ISSN 1932-7447
- Publisher:
- American Chemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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