000126362 001__ 126362
000126362 005__ 20241125101152.0
000126362 0247_ $$2doi$$a10.1016/j.cattod.2023.114081
000126362 0248_ $$2sideral$$a133783
000126362 037__ $$aART-2023-133783
000126362 041__ $$aeng
000126362 100__ $$aManno, R.
000126362 245__ $$aRapid microwave heating and fast quenching for the highly efficient production of long-term stable supported Ag nanoclusters
000126362 260__ $$c2023
000126362 5060_ $$aAccess copy available to the general public$$fUnrestricted
000126362 5203_ $$aGiven the exciting potential of metallic clusters in a variety of fields, the development of novel preparation methods to accurately controlling the cluster size has become a research priority. Specifically, for catalytic applications, the synthesis and deployment of metallic nanoclusters on a proper substrate is perhaps the main bottleneck. Here, we have adopted an alternative reactor that uses simultaneous ice cooling and microwave heating (unlike water ice is a low microwave absorber) for the synthesis of Ag nanoclusters directly over a support with ordered mesopores (SBA-15). The reactor design exploits the selectivity of microwave heating, assuring a rapid localized nucleation followed by a nearly instantaneous quenching that largely avoids the aggregation of nascent clusters as well as Ostwald ripening mechanisms. We have compared this new synthesis approach with some previously reported methods for the production of supported silver nanoclusters: conventional batch reactor and also a continuous flow microreactor. The resulting Ag clusters were initially analyzed in terms of size distribution, textural properties and catalytic activity in the reduction of 4-nitrophenol. Finally, encouraged by the good results obtained, these nanoclusters were also employed in the production of different cyclic organic compounds, building blocks for pharmaceutical and photochemical applications. The nanoclusters displayed a high catalytic activity, lowering the metal loading required to achieve high yield and selectivity. Furthermore, the stabilization of the clusters over the mesoporous substrate allowed their reuse in several reaction cycles. In fact, the method produced exceptionally stable Ag clusters, whose catalytic properties were preserved even after one year of storage.
000126362 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/PID2021-127847OB-I00$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 721290-COSMIC$$9info:eu-repo/grantAgreement/EC/H2020/721290/EU/European Training Network for Continuous Sonication and Microwave Reactors/COSMIC
000126362 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000126362 590__ $$a5.2$$b2023
000126362 592__ $$a1.022$$b2023
000126362 591__ $$aCHEMISTRY, APPLIED$$b13 / 74 = 0.176$$c2023$$dQ1$$eT1
000126362 593__ $$aChemistry (miscellaneous)$$c2023$$dQ1
000126362 591__ $$aENGINEERING, CHEMICAL$$b35 / 170 = 0.206$$c2023$$dQ1$$eT1
000126362 593__ $$aCatalysis$$c2023$$dQ2
000126362 591__ $$aCHEMISTRY, PHYSICAL$$b60 / 178 = 0.337$$c2023$$dQ2$$eT2
000126362 594__ $$a11.5$$b2023
000126362 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000126362 700__ $$aRanjan, P.
000126362 700__ $$0(orcid)0000-0002-6873-5244$$aSebastian, V.$$uUniversidad de Zaragoza
000126362 700__ $$0(orcid)0000-0002-4758-9380$$aMallada, R.$$uUniversidad de Zaragoza
000126362 700__ $$0(orcid)0000-0002-2966-9088$$aIrusta, S.$$uUniversidad de Zaragoza
000126362 700__ $$aVan der Eycken, E.V.
000126362 700__ $$0(orcid)0000-0002-8701-9745$$aSantamaria, J.$$uUniversidad de Zaragoza
000126362 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000126362 7102_ $$15005$$2790$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Tecnologi. Medio Ambiente
000126362 773__ $$g420 (2023), 114081 [12 pp.]$$pCatal. today$$tCatalysis Today$$x0920-5861
000126362 8564_ $$s6647297$$uhttps://zaguan.unizar.es/record/126362/files/texto_completo.pdf$$yVersión publicada
000126362 8564_ $$s2372021$$uhttps://zaguan.unizar.es/record/126362/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000126362 909CO $$ooai:zaguan.unizar.es:126362$$particulos$$pdriver
000126362 951__ $$a2024-11-22-12:07:27
000126362 980__ $$aARTICLE