P
Pedro J. Ramírez
Researcher at Central University of Venezuela
Publications - 40
Citations - 3473
Pedro J. Ramírez is an academic researcher from Central University of Venezuela. The author has contributed to research in topics: Catalysis & Methane. The author has an hindex of 19, co-authored 38 publications receiving 2408 citations. Previous affiliations of Pedro J. Ramírez include Brookhaven National Laboratory & AmeriCorps VISTA.
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Journal ArticleDOI
Active sites for CO2 hydrogenation to methanol on Cu/ZnO catalysts
Shyam Kattel,Pedro J. Ramírez,Jingguang G. Chen,Jingguang G. Chen,José A. Rodriguez,José A. Rodriguez,Ping Liu,Ping Liu +7 more
TL;DR: A direct comparison between the activity of ZnCu and ZnO/Cu model catalysts for methanol synthesis is reported, highlighting a synergy of Cu andZnO at the interface that facilitates methenol synthesis via formate intermediates.
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A new type of strong metal-support interaction and the production of H2 through the transformation of water on Pt/CeO2(111) and Pt/CeO(x)/TiO2(110) catalysts.
Albert Bruix,José A. Rodriguez,Pedro J. Ramírez,Sanjaya D. Senanayake,Jaime Evans,Joon B. Park,Dario Stacchiola,Ping Liu,Jan Hrbek,Francesc Illas +9 more
TL;DR: A transfer of O from the ceria to Pt is found that opens new paths for the WGS process and makes the mixed-metal oxide an extremely active catalyst for the production of hydrogen.
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The bending machine: CO2 activation and hydrogenation on δ-MoC(001) and β-Mo2C(001) surfaces
Sergio Posada-Pérez,Francesc Viñes,Pedro J. Ramírez,Pedro J. Ramírez,Alba B. Vidal,Alba B. Vidal,José A. Rodriguez,Francesc Illas +7 more
TL;DR: The theoretical and experimental results illustrate the tremendous impact that the carbon/metal ratio has on the chemical and catalytic properties of molybdenum carbides and must be taken into consideration when designing catalysts for the activation and conversion of CO2.
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Hydrogenation of CO2 to Methanol on CeOx/Cu(111) and ZnO/Cu(111) Catalysts: Role of the Metal–Oxide Interface and Importance of Ce3+ Sites
Sanjaya D. Senanayake,Pedro J. Ramírez,Iradwikanari Waluyo,Shankhamala Kundu,Kumudu Mudiyanselage,Zongyuan Liu,Zongyuan Liu,Zhi Liu,Stephanus Axnanda,Dario Stacchiola,Jaime Evans,José A. Rodriguez,José A. Rodriguez +12 more
TL;DR: In this paper, the role of the interface between a metal and oxide (CeOx-Cu and ZnO-Cu) is critical to the production of methanol through the hydrogenation of CO2 (CO2 + 3H2 → CH3OH + H2O).
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Room-Temperature Activation of Methane and Dry Re-forming with CO2 on Ni-CeO2(111) Surfaces: Effect of Ce3+ Sites and Metal–Support Interactions on C–H Bond Cleavage
Pablo G. Lustemberg,Pedro J. Ramírez,Zongyuan Liu,Ramón A. Gutiérrez,David G. Grinter,Javier Carrasco,Sanjaya D. Senanayake,José A. Rodriguez,José A. Rodriguez,M. Verónica Ganduglia-Pirovano +9 more
TL;DR: The results of core-level photoemission indicate that Ni-CeO2(111) surfaces with small or medium coverages of nickel are able to activate methane at 300 K, producing adsorbed CHx and COx (x = 2, 3) groups.