D
Dimitriy Vovchok
Researcher at Brookhaven National Laboratory
Publications - 16
Citations - 562
Dimitriy Vovchok is an academic researcher from Brookhaven National Laboratory. The author has contributed to research in topics: Catalysis & Water-gas shift reaction. The author has an hindex of 11, co-authored 15 publications receiving 404 citations. Previous affiliations of Dimitriy Vovchok include Stony Brook University.
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Journal ArticleDOI
In Situ Characterization of Cu/CeO2 Nanocatalysts for CO2 Hydrogenation: Morphological Effects of Nanostructured Ceria on the Catalytic Activity
Lili Lin,Siyu Yao,Zongyuan Liu,Feng Zhang,Na Li,Dimitriy Vovchok,Arturo Martínez-Arias,Rafael Castañeda,Jinying Lin,Sanjaya D. Senanayake,Dong Su,Ding Ma,José A. Rodriguez +12 more
TL;DR: In this article, a combination of time-resolved X-ray diffraction (TR-XRD), ambient-pressure Xray photoelectron spectroscopy (AP-XPS), and diffuse reflectance infrared Fourier transform spectrograph (IRFT) was used to carry out in situ characterization of Cu/CeO2 nanocatalysts during the hydrogenation of CO2.
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In Situ Elucidation of the Active State of Co–CeOx Catalysts in the Dry Reforming of Methane: The Important Role of the Reducible Oxide Support and Interactions with Cobalt
Feng Zhang,Zongyuan Liu,Shuhao Zhang,Nusnin Akter,Robert M. Palomino,Dimitriy Vovchok,Ivan Orozco,David Salazar,José A. Rodriguez,Jordi Llorca,Jaeha Lee,Do Heui Kim,Wenqian Xu,Anatoly I. Frenkel,Yuanyuan Li,Taejin Kim,Sanjaya D. Senanayake +16 more
TL;DR: In this paper, the activation of methane and its dry reforming with CO2 was systematically studied over a series (2 −30 wt %) of Co (∼5 nm in size) loaded CeO2 catalysts, with an effort to elucidate the interplay between Co and CeO 2 during the catalytic process using in situ methods.
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Visible Light-Driven H2 Production over Highly Dispersed Ruthenia on Rutile TiO2 Nanorods
Thuy-Duong Nguyen-Phan,Si Luo,Dimitriy Vovchok,Jordi Llorca,Jesús Graciani,Javier Fernández Sanz,Shawn Sallis,Wenqian Xu,Jianming Bai,Louis F. J. Piper,Dmitry E. Polyansky,Etsuko Fujita,Sanjaya D. Senanayake,Dario Stacchiola,José A. Rodriguez +14 more
TL;DR: In this paper, Rod-like rutile TiO2 structures, exposing preferentially (110) surfaces, are shown to be critical for the deposition of RuO2 to enable photocatalytic activity in the visible region.
Journal Article
In Situ Characterization of Cu/CeO2 Nanocatalysts for CO2 Hydrogenation: Morphological Effects of Nanostructured Ceria on the Catalytic Activity C
Lili Lin,Siyu Yao,Zongyuan Liu,Feng Zhang,Na Li,Dimitriy Vovchok,Arturo Martínez-Arias,Rafael Castañeda,Jinying Lin,Sanjaya D. Senanayake,Dong Su,Ding Ma,Jose A. Rodriguez +12 more
TL;DR: In this article, a combination of time-resolved X-ray diffraction (TR-XRD), ambient-pressure Xray photoelectron spectroscopy (AP-XPS), and diffuse reflectance infrared Fourier transform spectroscope was used to carry out in situ characterization of Cu/CeO₂ nanocatalysts during hydrogenation of CO.
Journal ArticleDOI
Three-dimensional ruthenium-doped TiO2 sea urchins for enhanced visible-light-responsive H2 production
Thuy-Duong Nguyen-Phan,Si Luo,Si Luo,Dimitriy Vovchok,Dimitriy Vovchok,Jordi Llorca,Shawn Sallis,Shyam Kattel,Wenqian Xu,Louis F. J. Piper,Dmitry E. Polyansky,Sanjaya D. Senanayake,Dario Stacchiola,José A. Rodriguez,José A. Rodriguez +14 more
TL;DR: Three-dimensional monodispersed sea urchin-like Ru-doped rutileTiO2 hierarchical architectures composed of radially aligned, densely-packed TiO2 nanorods have been successfully synthesized via an acid-hydrothermal method at low temperature without the assistance of any structure-directing agent and post annealing treatment.