Article
Chemistry, Physical
Xueping Qin, Tejs Vegge, Heine Anton Hansen
Summary: The study investigates CO2 activation at the Au-water interfaces by introducing K+ cations, constructing an electrochemical environment for exploring CO2 adsorption/desorption reactions from the atomic level, and reveals that CO2 adsorption is activated by the first-electron transfer.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Zefeng Ren, Ruidan Zhang, Ting Luo, Wei-Wang Zeng, Chuanyao Zhou, Xueming Yang
Summary: Surfacesensitive sum frequency generation vibrational spectroscopy (SFG-VS) was used to study the adsorption and reaction of methanol on TiO2(110) at near ambient pressure and 400K. The results showed that bridge-bonded methoxy (CH3Ob) was the dominant adsorbed species on TiO2(110) at an elevated pressure of methanol. By evacuating the methanol gas, only CH3Ob species remained on the surface, which was confirmed by UV irradiation experiments. It was also found that the recombinative desorption of bridging hydroxyl (OHb) groups can facilitate the continuous dissociative adsorption of methanol and the continuous generation of CH3Ob.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Philip Petzoldt, Moritz Eder, Sonia Mackewicz, Monika Blum, Tim Kratky, Sebastian Guenther, Martin Tschurl, Ueli Heiz, Barbara A. J. Lechner
Summary: In this study, the effect of O-2 and H-2 on Pt/TiO2(110) catalysts was investigated using synchrotron-based near-ambient pressure X-ray photoelectron spectroscopy. The results showed that the rate of formation of the encapsulating oxide layer on Pt particles varied with different O-2 pressures, and once encapsulation occurred, Pt particles remained embedded in the support.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Philip Petzoldt, Moritz Eder, Sonia Mackewicz, Monika Blum, Tim Kratky, Sebastian Guenther, Martin Tschurl, Ueli Heiz, Barbara A. J. Lechner
Summary: The study shows that O-2 and H-2 have a significant impact on the SMSI state of Pt/TiO2 catalysts, with encapsulating oxide layer forming more rapidly at low O-2 pressures, but less effectively at higher pressures. The oxidation/reduction of Pt particles is reversible, but once encapsulated, they remain embedded in the support.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Srestha Basu, Archismita Hajra, Arun Chattopadhyay
Summary: The study reports the formation of nanoscale particles from the complexation reaction between zinc acetate and ascorbic acid under ambient conditions, leading to the formation of a molecular complex with luminescent properties. The nanoscale particles were observed to increase in size over time, reaching approximately 50 nm after 24 hours. Transmission electron microscopy results indicated both polycrystalline and amorphous nanoparticles in the medium, with UV absorption and photoluminescence peaks confirming the formation of the nanoparticles.
NANOSCALE ADVANCES
(2021)
Article
Chemistry, Physical
William J. I. DeBenedetti, Erik S. Skibinski, Dapeng Jing, Anqi Song, Melissa A. Hines
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Article
Chemistry, Multidisciplinary
Matej Velicky, Gavin E. Donnelly, William R. Hendren, Stephen McFarland, Declan Scullion, William J. I. DeBenedetti, Gabriela Calinao Correa, Yimo Han, Andrew J. Wain, Melissa A. Hines, David A. Muller, Kostya S. Novoselov, Hector D. Abruna, Robert M. Bowman, Elton J. G. Santos, Fumin Huang
Article
Multidisciplinary Sciences
Jan Balajka, Melissa A. Hines, William J. I. DeBenedetti, Mojmir Komora, Jiri Pavelec, Michael Schmid, Ulrike Diebold
Article
Chemistry, Physical
William J. I. DeBenedetti, Melissa A. Hines
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Chemistry, Multidisciplinary
Amnon G. Ortoll-Bloch, Henry C. Herbol, Blaire A. Sorenson, Matthias Poloczek, Lara A. Estroff, Paulette Clancy
CRYSTAL GROWTH & DESIGN
(2020)
Article
Chemistry, Physical
Alice Galdi, William J. I. DeBenedetti, Jan Balajka, Luca Cultrera, Ivan V. Bazarov, Jared M. Maxson, Melissa A. Hines
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Chemistry, Multidisciplinary
Matej Velicky, Gavin E. Donnelly, William R. Hendren, William J. I. DeBenedetti, Melissa A. Hines, Kostya S. Novoselov, Hector D. Abruna, Fumin Huang, Otakar Frank
ADVANCED MATERIALS INTERFACES
(2020)
Article
Physics, Applied
Alice Galdi, Jan Balajka, William J. I. DeBenedetti, Luca Cultrera, Ivan V. Bazarov, Melissa A. Hines, Jared M. Maxson
Summary: Research found that cesium antimonide photocathodes grown on 3C-SiC substrates exhibit larger island size and significantly reduced roughness, with the local electric fields they generate contributing to a decrease in MTE.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
William J. DeBenedetti, Melissa A. Hines
Summary: Fluorination can enhance the photoreactivity of TiO2 nanocrystals and the fluorinated surface exhibits excellent contamination resistance. The rough morphology and isotropic etching of the fluorinated surface indicate the surface instability caused by fluorine and the unique reaction dynamics of XeF2.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Physics, Multidisciplinary
C. T. Parzyck, A. Galdi, J. K. Nangoi, W. J. DeBenedetti, J. Balajka, B. D. Faeth, H. Paik, C. Hu, T. A. Arias, M. A. Hines, D. G. Schlom, K. M. Shen, J. M. Maxson
Summary: Epitaxial thin films of Cs3Sb on 3C-SiC(001) demonstrate higher quantum efficiency, better electronic structure, and permit angle-resolved photoemission spectroscopy measurements.
PHYSICAL REVIEW LETTERS
(2022)