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Listar por palabra clave "Molecular-sieves"

Mostrando ítems 1-8 de 8

Crystalline phase transition in as-synthesized pure silica zeolite RTH containing tetra-alkyl phosphonium as organic structure directing agent

Martinez-Ortigosa, Joaquin; Millán, Reisel; Simancas, Jorge; Hernández-Rodríguez, Manuel; Vidal Moya, José Alejandro; Jorda Moret, Jose Luis; Martineau-Corcos, Charlotte; Sarou-Kanian, Vincent; Boronat Zaragoza, Mercedes; Blasco Lanzuela, Teresa; Rey Garcia, Fernando (The Royal Society of Chemistry, 2024-01-03)

[EN] The choice of structure directing agents (SDAs) in zeolite synthesis significantly impacts the arrangement of active sites, thereby influencing the stabilization of reaction intermediates with profound implications ...
Designing bifunctional acid-base mesoporous hybrid catalysts for cascade reactions

Gianotti, Enrica; Díaz Morales, Urbano Manuel; Velty, Alexandra; Corma Canós, Avelino (Royal Society of Chemistry, 2013)

[EN] Bifunctional mesoporous hybrid materials, containing both proton sponges and acid groups, have been prepared following different synthetic routes: co-condensation processes (sol-gel or micellar one-pot routes) or ...
Highly fluorescent C-dots obtained by pyrolysis of quaternary ammonium ions trapped in all-silica ITQ-29 zeolite

García Baldoví, Hermenegildo; Valencia Valencia, Susana; Alvaro Rodríguez, Maria Mercedes; Abdullah, Asiri M.; García Gómez, Hermenegildo (Royal Society of Chemistry, 2015)

[EN] C-dots obtained in the homogeneous phase may exhibit a broad particle size distribution. The formation of C-dots within nanometric reaction cavities could be a methodology to gain control on their size distribution. ...
Improving the catalytic performance of SAPO-18 for the methanol-to-olefins (MTO) reaction by controlling the Si distribution and crystal size

Martínez Franco, Raquel; Li, Zhibin; Martínez Triguero, Luis Joaquín; Moliner Marin, Manuel; Corma Canós, Avelino (Royal Society of Chemistry, 2016)

[EN] The physico-chemical properties of the small pore SAPO-18 zeotype have been controlled by properly selecting the organic molecules acting as organic structure directing agents (OSDAs). The two organic molecules selected ...
Nanocrystalline SSZ-39 zeolite as an efficient catalyst for the methanol-to-olefin (MTO) process

Martín García, Nuria; Li, Zhibin; Martínez Triguero, Luis Joaquín; Yu, Jihong; Moliner Marin, Manuel; Corma Canós, Avelino (Royal Society of Chemistry, 2016)

[EN] The synthesis of nanosized SSZ-39 zeolite has been achieved using a high silica FAU zeolite as the Si and Al source and tetraethylphosphonium (TEP) cations as OSDAs. The obtained SSZ-39 material shows a remarkably ...
Recyclable mesoporous silica-supported chiral ruthenium-(NHC) NN-pincer catalysts for asymmetric reactions

del Pozo, Carolina; Corma Canós, Avelino; Iglesias, Marta; Sanchez, Felix (Royal Society of Chemistry, 2011)

[EN] New stable chiral [RuHClCO((NHC)NN)] and [RuCl2(p-cymene)((NHC) NN)] pincer complexes with a pendant silyloxy group ((NHC) NN: (S)-1-((6-((3-aryl-2,3-dihydro-1H-imidazol-1yl) methyl) pyridin-2-yl) methyl); ...
Synthesis and structure determination of a new microporous zeolite with large cavities connected by small pores

Hernández Rodríguez, Manuel; Jorda Moret, Jose Luis; Rey Garcia, Fernando; Corma Canós, Avelino (AMER CHEMICAL SOC, 2012)

[EN] A new small-pore germanosilicate zeolite, named as ITQ-49, has been synthesized using a new ditetraalkylphosphonium dication as an organic structure-directing agent, and its structure has been solved by direct methods ...
Synthesis of nano-SSZ-13 and its application in the reaction of methanol to olefins

Li, Zhibin; Navarro Villalba, Mª Teresa; Martínez Triguero, Luis Joaquín; Yu, Jihong; Corma Canós, Avelino (Royal Society of Chemistry, 2016)

[EN] Nanosized SSZ-13 has been obtained from a one-pot synthesis procedure with the addition of CTAB to the synthesis precursor solution. Nano-SSZ-13 zeolite showed high intracrystalline mesoporosity and compared to standard ...