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• W2034255219 endingPage "8546" @default.
• W2034255219 startingPage "8538" @default.
• W2034255219 abstract "Pyridine adsorption on NiAl(100) and ultrathin films of γ-Al2O3 was studied using high-resolution electron energy loss spectroscopy (HREELS). Pyridine adsorbs on NiAl(100) with its molecular axis parallel to the surface plane at low coverages and with its molecular plane inclined more toward the surface normal at higher coverages. On the hydroxylated and nonhydroxylated thin films of γ-Al2O3, pyridine interacts with the coordinatively unsaturated Al3+ cations via its nitrogen lone-pair electrons. Pyridine was also found to interact with the surface hydroxyl groups on the hydroxylated γ-Al2O3 thin films, forming C5H5N−HO complexes. Complex formation causes the OH bond strength to decrease and the OH stretch vibration to shift from 3711 cm-1, which is characteristic of uncomplexed, isolated OH, to lower frequency. At low coverages, pyridine only interacts with the more acidic surface OH groups, those located on 3-fold Al3+ cation sites. This interaction forms a C5H5N−HO complex, which has an O−H stretch at 2920 cm-1. As the coverage is increased, an additional C5H5N−HO complex is formed from an interaction between pyridine and the less acidic OH groups, which are bonded to 2 Al3+ cations. The vibrational frequency for O−H stretch of this C5H5N−HO complex is 3150 cm-1. As the intensities for the O−H stretches of the C5H5N−HO complexes increase, the intensity for the free O−H stretch at 3711 cm-1 decreases. The interaction with the surface hydroxyl groups is reversible, confirming that the observed shifts in the O−H stretching frequency result from the formation of weakly bonded acid−base complexes. While most of the pyridine desorbs from the γ-Al2O3 thin films by 290 K, annealing the pyridine-dosed γ-Al2O3 thin films to temperatures above 290 K, results in a small amount of pyridine dehydrogenation and the formation of surface OH groups with an O−H stretch at 3742 cm-1." @default.
• W2034255219 created "2016-06-24" @default.
• W2034255219 creator A5042787274 @default.
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• W2034255219 date "2003-07-19" @default.
• W2034255219 modified "2023-10-03" @default.
• W2034255219 title "Pyridine Adsorption and Acid/Base Complex Formation on Ultrathin Films of γ-Al₂O₃ on NiAl(100)" @default.
• W2034255219 cites W106889752 @default.
• W2034255219 cites W1557824800 @default.
• W2034255219 cites W1586613530 @default.
• W2034255219 cites W1969439153 @default.
• W2034255219 cites W1971405406 @default.
• W2034255219 cites W1972508457 @default.
• W2034255219 cites W1972822664 @default.
• W2034255219 cites W1981192368 @default.
• W2034255219 cites W1984128902 @default.
• W2034255219 cites W1985889987 @default.
• W2034255219 cites W1986776685 @default.
• W2034255219 cites W1990489058 @default.
• W2034255219 cites W1990974267 @default.
• W2034255219 cites W1992552386 @default.
• W2034255219 cites W1995024272 @default.
• W2034255219 cites W1998574923 @default.
• W2034255219 cites W1999225355 @default.
• W2034255219 cites W1999470833 @default.
• W2034255219 cites W2001220394 @default.
• W2034255219 cites W2008079059 @default.
• W2034255219 cites W2008251769 @default.
• W2034255219 cites W2009960867 @default.
• W2034255219 cites W2012683379 @default.
• W2034255219 cites W2014465567 @default.
• W2034255219 cites W2017203269 @default.
• W2034255219 cites W2025597271 @default.
• W2034255219 cites W2028389796 @default.
• W2034255219 cites W2031425153 @default.
• W2034255219 cites W2035508510 @default.
• W2034255219 cites W2036109497 @default.
• W2034255219 cites W2036571191 @default.
• W2034255219 cites W2037302907 @default.
• W2034255219 cites W2048156439 @default.
• W2034255219 cites W2051254617 @default.
• W2034255219 cites W2052335731 @default.
• W2034255219 cites W2053473499 @default.
• W2034255219 cites W2056629975 @default.
• W2034255219 cites W2057240330 @default.
• W2034255219 cites W2058348338 @default.
• W2034255219 cites W2061742309 @default.
• W2034255219 cites W2062058974 @default.
• W2034255219 cites W2063246157 @default.
• W2034255219 cites W2064026454 @default.
• W2034255219 cites W2070123842 @default.
• W2034255219 cites W2070204542 @default.
• W2034255219 cites W2070357771 @default.
• W2034255219 cites W2073206214 @default.
• W2034255219 cites W2075559005 @default.
• W2034255219 cites W2076085552 @default.
• W2034255219 cites W2076235684 @default.
• W2034255219 cites W2078640067 @default.
• W2034255219 cites W2079106217 @default.
• W2034255219 cites W2079292228 @default.
• W2034255219 cites W2083499272 @default.
• W2034255219 cites W2085256702 @default.
• W2034255219 cites W2085368764 @default.
• W2034255219 cites W2086261041 @default.
• W2034255219 cites W2087447552 @default.
• W2034255219 cites W2088701120 @default.
• W2034255219 cites W2089012769 @default.
• W2034255219 cites W2089112713 @default.
• W2034255219 cites W2093022526 @default.
• W2034255219 cites W2142412171 @default.
• W2034255219 cites W2146111454 @default.
• W2034255219 cites W2166045565 @default.
• W2034255219 cites W280673074 @default.
• W2034255219 cites W2949373148 @default.
• W2034255219 cites W4234969546 @default.
• W2034255219 cites W44785546 @default.
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• W2034255219 doi "https://doi.org/10.1021/jp030046p" @default.
• W2034255219 hasPublicationYear "2003" @default.
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