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2. Contributors

Author

Abdullah, Mohd Azmuddin, primary, Afzal, Muhammad, additional, Ahmad, Mushtaq, additional, Ahmad, Sadaf, additional, Ahmed, Sidra Nisar, additional, Ahmed, Syed Riaz, additional, Akhtar, Majid Niaz, additional, Akram, Abida, additional, Alañón, María Elena, additional, Ali, Zulfiqar, additional, Ashraf, Asma, additional, Azeem, Farrukh, additional, Batool, Riffat, additional, Cecilia, Juan A., additional, Chaudhary, Muhammad Fahad, additional, de la Luz Cádiz-Gurrea, María, additional, del Carmen Villegas-Aguilar, María, additional, Dolzhenko, Anton V., additional, Fernández-Ochoa, Álvaro, additional, García-Sancho, Cristina, additional, Gharabeiki, Ariga, additional, Haider, Ali, additional, Hayat, Samreen, additional, Hussain, Sabir, additional, Hussein, Hanaa Ali, additional, Iftikhar, Kainat, additional, Ijaz, Usman, additional, Imran, Muhammad, additional, Irshad, Aamna, additional, Jiménez-Gómez, Carmen P., additional, Kanwal, Hira, additional, Kargari, Ali, additional, Kilic, Omer, additional, Leyva-Jiménez, Francisco Javier, additional, Maireles-Torres, Pedro, additional, Mandal, Peetam, additional, Maqbool, Fareeha, additional, Mehmood, Iqra, additional, Muzammil, Aqsa, additional, Muzammil, Saima, additional, Nadeem, Habib Ullah, additional, Nazir, Muhammad Shahid, additional, Nnamani, Daniel Okwudili, additional, Onyekere, Peculiar Feenna, additional, Peculiar-Onyekere, Chioma Obianuju, additional, Pimentel-Moral, Sandra, additional, Rasheed, Asima, additional, Rasool, Danish, additional, Rasul, Ijaz, additional, Riaz, Fatima, additional, Saha, Mitali, additional, Samra, Hafeez, additional, Segura-Carretero, Antonio, additional, Shafique, Aimen, additional, Shahzad, Tanvir, additional, Siddique, Muhammad Hussnain, additional, Sultana, Shazia, additional, Uzor, Philip F., additional, Waris, Karistofar, additional, Waseem, Muhammad, additional, Yaseen, Ghulam, additional, Zafar, Muhammad, additional, and Zubair, Muhammad, additional

Published
2021
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3. 2-MeTHF

Author

Jiménez-Gómez, Carmen P., primary, García-Sancho, Cristina, additional, Cecilia, Juan A., additional, and Maireles-Torres, Pedro, additional

Published
2021
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7. Porous SiO2 Nanospheres Modified with ZrO2 and Their Use in One-Pot Catalytic Processes to Obtain Value-Added Chemicals from Furfural

Author

Maderuelo-Solera, Rocío, primary, Richter, Stefan, additional, Jiménez-Gómez, Carmen P., additional, García-Sancho, Cristina, additional, García-Mateos, Francisco J., additional, Rosas, Juana M., additional, Moreno-Tost, Ramón, additional, Cecilia, Juan A., additional, and Maireles-Torres, Pedro, additional

Published
2021
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13. Influence of the incorporation of basic or amphoteric oxides on the performance of Cu-based catalysts supported on sepiolite in furfural hydrogenation

Author

Ministerio de Economía y Competitividad (España), Junta de Andalucía, Cecilia, Juan Antonio [0000-0001-5742-4822], Quirante-Sánchez, José J. [ 0000-0003-1040-989X], Maireles-Torres, Pedro [0000-0002-7610-6042], Guerrero-Torres, Antonio, Jiménez-Gómez, Carmen P., Cecilia, Juan Antonio, García-Sancho, Cristina, Quirante-Sánchez, José J., Mérida‐Robles, Josefa, Maireles-Torres, Pedro, Ministerio de Economía y Competitividad (España), Junta de Andalucía, Cecilia, Juan Antonio [0000-0001-5742-4822], Quirante-Sánchez, José J. [ 0000-0003-1040-989X], Maireles-Torres, Pedro [0000-0002-7610-6042], Guerrero-Torres, Antonio, Jiménez-Gómez, Carmen P., Cecilia, Juan Antonio, García-Sancho, Cristina, Quirante-Sánchez, José J., Mérida‐Robles, Josefa, and Maireles-Torres, Pedro

Abstract

EN] Cu-based catalysts supported on sepiolite have been tested in vapor-phase hydrogenation of furfural. The incorporation of basic or amphoteric metal oxides (magnesium oxide, zinc oxide, or cerium oxide) improves the catalytic behavior, reaching a maximum furfural conversion above 80% after 5 h of reaction at 210 °C. In all cases, the main product is furfuryl alcohol, obtaining 2-methylfuran in lower proportions. The incorporation of these metal oxide species ameliorates the dispersion of metallic Cu nanoparticles, increasing the number of available Cu0-sites, which enhances the catalytic performance. The presence of acid sites favors the hydrogenolysis of furfuryl alcohol towards 2-methylfuran, although it also causes an increase of carbon species on its surface, which is associated with the catalytic deactivation of the catalyst along the time-on-stream.

Published
2019

15. Porous SiO2Nanospheres Modified with ZrO2and Their Use in One-Pot Catalytic Processes to Obtain Value-Added Chemicals from Furfural

Author

Maderuelo-Solera, Rocío, Richter, Stefan, Jiménez-Gómez, Carmen P., García-Sancho, Cristina, García-Mateos, Francisco J., Rosas, Juana M., Moreno-Tost, Ramón, Cecilia, Juan A., and Maireles-Torres, Pedro

Abstract

Porous SiO2nanospheres were modified with different loadings of ZrO2to obtain catalysts with a Si/Zr molar ratio from 2.5 to 30. These materials were characterized by X-ray diffraction, transmission and scanning electron microscopies, N2adsorption–desorption at −196 °C, X-ray photoelectron spectroscopy and pyridine and 2–6-dimethylpyridine thermoprogrammed desorption. The characterization of these catalysts has revealed that a high proportion of Zr favors the formation of Lewis acid sites, which are implied in catalytic transfer hydrogenation processes, whereas the low Brönsted acidity promotes a dehydration reaction, being possible to give rise to a large variety of products from furfural through consecutive reactions, such as furfuryl alcohol, i-propyl furfuryl ether, i-propyl levulinate, and γ-valerolactone, in a range of temperature of 110–170 °C and 1–6 h of reaction.

Published
2021
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17. Influence of the Incorporation of Basic or Amphoteric Oxides on the Performance of Cu-Based Catalysts Supported on Sepiolite in Furfural Hydrogenation.

Author

Guerrero-Torres, Antonio, Jiménez-Gómez, Carmen P., Cecilia, Juan A., García-Sancho, Cristina, Quirante-Sánchez, José J., Mérida-Robles, Josefa M., and Maireles-Torres, Pedro

Subjects
*FURFURAL, *CATALYST supports, *MEERSCHAUM, *HYDROGENATION, *METALLIC oxides, *ZINC oxide
Abstract

Cu-based catalysts supported on sepiolite have been tested in vapor-phase hydrogenation of furfural. The incorporation of basic or amphoteric metal oxides (magnesium oxide, zinc oxide, or cerium oxide) improves the catalytic behavior, reaching a maximum furfural conversion above 80% after 5 h of reaction at 210 °C. In all cases, the main product is furfuryl alcohol, obtaining 2-methylfuran in lower proportions. The incorporation of these metal oxide species ameliorates the dispersion of metallic Cu nanoparticles, increasing the number of available Cu0-sites, which enhances the catalytic performance. The presence of acid sites favors the hydrogenolysis of furfuryl alcohol towards 2-methylfuran, although it also causes an increase of carbon species on its surface, which is associated with the catalytic deactivation of the catalyst along the time-on-stream. [ABSTRACT FROM AUTHOR]

Published
2019
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18. Porous SiO 2 Nanospheres Modified with ZrO 2 and Their Use in One-Pot Catalytic Processes to Obtain Value-Added Chemicals from Furfural.

Author

Maderuelo-Solera R, Richter S, Jiménez-Gómez CP, García-Sancho C, García-Mateos FJ, Rosas JM, Moreno-Tost R, Cecilia JA, and Maireles-Torres P

Abstract

Porous SiO 2 nanospheres were modified with different loadings of ZrO 2 to obtain catalysts with a Si/Zr molar ratio from 2.5 to 30. These materials were characterized by X-ray diffraction, transmission and scanning electron microscopies, N 2 adsorption-desorption at -196 °C, X-ray photoelectron spectroscopy and pyridine and 2-6-dimethylpyridine thermoprogrammed desorption. The characterization of these catalysts has revealed that a high proportion of Zr favors the formation of Lewis acid sites, which are implied in catalytic transfer hydrogenation processes, whereas the low Brönsted acidity promotes a dehydration reaction, being possible to give rise to a large variety of products from furfural through consecutive reactions, such as furfuryl alcohol, i-propyl furfuryl ether, i-propyl levulinate, and γ-valerolactone, in a range of temperature of 110-170 °C and 1-6 h of reaction., Competing Interests: The authors declare no competing financial interest., (© 2021 The Authors. Published by American Chemical Society.)

Published
2021
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