Chemical and Environmental Engineering Group

  • Hybrid MOF catalysts development for glycerol valorization

    Funding : Universidad Rey Juan Carlos ()
    Start / End Years : 2023 - 2023
    Principal Investigator : Orcajo Rincón, Gisela
    Research Team : - Calleja Pardo, Guillermo - García Rojas, Elena - Leo Llorente, Pedro - Martos Sánchez, Carmen - Orcajo Rincón, Gisela - Paredes Martínez, Beatriz - Tapiador Cebrián, Jesús 

      Show summary: In the current energy-demanding world and emissions-restrictive scenario, biofuels also play an important role in decarbonization, mainly in transportation, buildings and industry. The global production of biodiesel is still growing, generating a massive amount of glycerol as by-product at a rate of 10-12% of biodiesel and a purity of about 50-55%. The global glycerol market size was valued at USD 2.4 billion in 2020 and is expected to expand at a compound annual growth rate (CAGR) of 6.4% in terms of revenue from 2021 to 2027. Alternatives are especially interesting if the use of crude glycerol is enabled without the need of further purification, so new chemical conversion routes need to be explored. Among these alternatives, acetalization reactions stand out as a process that can adhere to the principles of Green Chemistry and can be catalyzed by a heterogeneous catalyst. Acetals are traditionally produced from aldehydes and alcohols in the presence of typical acid catalysts such as dry HCl, H2SO4, trifluoroacetic acid, and p-toluenesulfonic acid. Recently, successful, and efficient acetalization reactions have also been reported using heterogeneous catalysts such as Amberlyst-15 and Amberlyst-36, silica-supported heteropoly acids, mesoporous silicates containing arylsulfonate groups and zeolites. However, none of these catalysts can simultaneously contain structural Lewis and Brønsted acid sites, which is a suitable catalytic feature for acetalization reactions. The main objective of this project is to find an efficient system to transform glycerol into high-value products by using advanced catalysts that improves the state of the art about acetalization of glycerol, using heterogeneous, active and selective novel catalysts. These advanced catalysts will be hybrid materials based on MOFs and mesoporous silica that would enhance the physical and chemical properties of the MOF phase, decreasing the economic costs of the catalyst production.

Direct a-arylation of ketones efficiently catalyzed by Cu-MOF-74

Leo, P.; Orcajo, G.; Briones, D.; Martínez, F.; Calleja, G.

Novel and versatile cobalt Azobenzene-Based Metal-Organic Framework as hydrogen adsorbent

Montes-Andrés, H.; Leo, P.; Orcajo, G.; Rodríguez-Diéguez, A.; Choquesillo-Lazarte, D.; Martos, C.; Botas, J. A.; Martínez, F., Calleja, G.

Alkaline-earth metal based MOFs with second scale long-lasting phosphor behavior

Briones, D.; Leo, P.; Cepeda, J.; Orcajo, G.; Calleja, G.; Sanz, R.; Rodríguez-Diéguez, A.; Martínez, F.

MOFs Extend the Lifetime of Pd(II) Catalyst for Room Temperature Alkenylation of Enamine-Like Arenes

Cirujano, F. G.; Leo, P.; Vercammen, J.; Smolders, S.; Orcajo G.; De Vos, D. V.

Sustainable Fe-BTC catalyst for efficient removal of mehylene blue by advanced fenton oxidation

Martínez, F.; Leo, P.; Orcajo, G.; Díaz-García, M.; Sanchez-Sanchez, M.; Calleja, G.

New URJC-1 Material with remarkable stability and acid-base catalytic properties

Leo, P.; Martínez, F.; Calleja, G.; Briones, D.; Wojtas, L.; Orcajo, G.

Preparation and characterization of MOF-PES ultrafiltration membranes

Sotto, A.; Orcajo, G.; Arsuaga, J. M.; Calleja, G.; Landaburu-Aguirre, J.

Synthesis of a honeycomb-like Cu-based metal–organic framework and its carbon dioxide adsorption behaviour

Sanz, R.; Martínez, F.; Orcajo, G.; Wojtas, L.; Briones, D.

Effect of ion-exchange modification on hydrogen and carbon dioxide adsorption behaviour of RhoZMOF material

Calleja, G.; Botas, J. A.; Martos, C.; Orcajo, G.; J. A. Villajos

Effect of Zn/Co ratio in MOF-74 type materials containing exposed metal sites on their hydrogen adsorption behaviour and on their band gap energy

Botas, J. A.; Calleja, G.; Sánchez-Sánchez, M.; Orcajo, M. G.

Co8-MOF-5 as electrode for supercapacitors

Díaz, R.; Orcajo, M. G.; Botas, J. A.; Calleja, G.; Palma, J.

On the Hydrogen adsorption over Zeolite-like MOF materials modified by ion exchange

Calleja, G.; Botas, J. A.; Sánchez-Sánchez, M.; Orcajo, M. G.

  • International Journal of Hydrogen Energy, 35, 99169923 (2010)

Cobalt doping of the MOF-5 framework and its effect on gas-adsorption properties

Botas, J. A.; Calleja, G.; Sánchez-Sánchez, M.; Orcajo, G.

Differences between the isostructural IRMOF-1 and MOCP-L porous adsorbents

Calleja, G.; Botas, J. A.; Orcajo, M. G.; Sánchez-Sánchez, M.