Water Molecular Adsorption on the Low-Index Pt Surface: A Density Functional Study
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| 1. | Title | Title of document | Water Molecular Adsorption on the Low-Index Pt Surface: A Density Functional Study |
| 2. | Creator | Author's name, affiliation, country | Wahyu Tri Cahyanto; Department of Physics, Universitas Jenderal Soedirman, Jl. Dr. Soeparno, Karangwangkal, Purwokerto 53123, Indonesia; Indonesia |
| 2. | Creator | Author's name, affiliation, country | Aris Haryadi; Department of Physics, Universitas Jenderal Soedirman, Jl. Dr. Soeparno, Karangwangkal, Purwokerto 53123, Indonesia; Indonesia |
| 2. | Creator | Author's name, affiliation, country | Sunardi Sunardi; Department of Physics, Universitas Jenderal Soedirman, Jl. Dr. Soeparno, Karangwangkal, Purwokerto 53123, Indonesia; Indonesia |
| 2. | Creator | Author's name, affiliation, country | Abdul Basit; Department of Physics, Universitas Jenderal Soedirman, Jl. Dr. Soeparno, Karangwangkal, Purwokerto 53123, Indonesia; Indonesia |
| 2. | Creator | Author's name, affiliation, country | Yulin Elina; Department of Physics, Universitas Jenderal Soedirman, Jl. Dr. Soeparno, Karangwangkal, Purwokerto 53123, Indonesia; Indonesia |
| 3. | Subject | Discipline(s) | |
| 3. | Subject | Keyword(s) | H2O adsorption; low Miller index; Pt surface; DFT; charge transfer |
| 4. | Description | Abstract | We report the different way to explain the nature of water molecule (H2O) adsorption on the platinum (Pt) surfaces with low Miller index, i.e., (100), (110) and (111). Here, we perform periodic density functional theory (DFT) calculations to analyze the correlation between water-surface bonding strength and the observed charge transfer occurring in the systems. The results show that Pt-H2O interaction strength at the most stable adsorption sites, i.e., the atop site for each surfaces, follows the order of H2O/Pt(110) > H2O/Pt(100) > H2O/Pt(111). This order has the same pattern with the order of observed charge transfer contributed to the bonding formation. The differences in adsorption geometrical structures in these three surfaces are suggested to responsible for the order of bond strength since Coulomb interaction plays dominant roles in our electrostatic model. Furthermore, H2O-Pt interaction mechanism, which occurs through water 3a1 orbital releasing electron density (charge) followed by Pt-O bonding formation, is clarified. |
| 5. | Publisher | Organizing agency, location | Universitas Gadjah Mada |
| 6. | Contributor | Sponsor(s) | |
| 7. | Date | (YYYY-MM-DD) | 2017-12-22 |
| 8. | Type | Status & genre | Peer-reviewed Article |
| 8. | Type | Type | |
| 9. | Format | File format | |
| 10. | Identifier | Uniform Resource Identifier | https://jurnal.ugm.ac.id/ijc/article/view/24162 |
| 10. | Identifier | Digital Object Identifier (DOI) | https://doi.org/10.22146/ijc.24162 |
| 11. | Source | Title; vol., no. (year) | Indonesian Journal of Chemistry; Article in press |
| 12. | Language | English=en | en |
| 13. | Relation | Supp. Files | |
| 14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
| 15. | Rights | Copyright and permissions |
Copyright (c) 2017 Indonesian Journal of Chemistry This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. |