000064413 001__ 64413
000064413 005__ 20190709135703.0
000064413 0247_ $$2doi$$a10.1021/acsami.7b11482
000064413 0248_ $$2sideral$$a103547
000064413 037__ $$aART-2017-103547
000064413 041__ $$aeng
000064413 100__ $$aMiguel-Sancho, N.
000064413 245__ $$aPumping Metallic Nanoparticles with Spatial Precision within Magnetic Mesoporous Platforms: 3D Characterization and Catalytic Application
000064413 260__ $$c2017
000064413 5060_ $$aAccess copy available to the general public$$fUnrestricted
000064413 5203_ $$aThe present work shows an efficient strategy to assemble two types of functional nanoparticles onto mesoporous MCM-41 silica nanospheres with a high degree of spatial precision. In a first stage, magnetite nanoparticles are synthesized with a size larger than the support pores and grafted covalently through a peptide-like bonding onto their external surface. This endowed the silica nanoparticles with a strong superparamagnetic response, while preserving the highly ordered interior space for the encapsulation of other functional guest species. Second, we report the finely controlled pumping of preformed Pt nanoparticles (1.5 nm) within the channels of the magnetic MCM-41 nanospheres to confer an additional catalytic functionality to the multiassembled nanoplatform. The penetration depth of the metallic nanoparticles can be explained as a result of the interplay between the particle-wall electrostatic attraction and the repulsive forces between neighboring Pt nanoparticles. A detailed transmission electron microscopy and a 3D high-resolution high-angle annular dark-field detector electron tomography study were carried out to characterize the material and to explain the assembly mechanism. Finally, the performance of these multifunctional nanohybrids as magnetically recoverable catalysts has been evaluated in the selective hydrogenation of p-nitrophenol, a well-known pollutant and intermediate in multiple industrial processes.
000064413 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/MAT2016-79776-P$$9info:eu-repo/grantAgreement/EC/FP7/321642/EU/Development of a microfluidic platform to produce nanomaterials and assessment on new nanotechnology applications/PLATFORM2NANO$$9info:eu-repo/grantAgreement/EC/FP7/294094/EU/Synthesis and characterization of NANOstructured materials with LumInescent properties for diaGnostic and tHerapeuTic applications/NANOLIGHT$$9info:eu-repo/grantAgreement/ES/DGA/E26
000064413 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000064413 590__ $$a8.097$$b2017
000064413 591__ $$aNANOSCIENCE & NANOTECHNOLOGY$$b15 / 92 = 0.163$$c2017$$dQ1$$eT1
000064413 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b26 / 285 = 0.091$$c2017$$dQ1$$eT1
000064413 592__ $$a2.784$$b2017
000064413 593__ $$aMaterials Science (miscellaneous)$$c2017$$dQ1
000064413 593__ $$aNanoscience and Nanotechnology$$c2017$$dQ1
000064413 593__ $$aMedicine (miscellaneous)$$c2017$$dQ1
000064413 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000064413 700__ $$0(orcid)0000-0001-7872-6301$$aMartinez, G.$$uUniversidad de Zaragoza
000064413 700__ $$aSebastian, V.
000064413 700__ $$aMalumbres, A.
000064413 700__ $$aFlorea, I.
000064413 700__ $$0(orcid)0000-0002-2071-9093$$aArenal, R.$$uUniversidad de Zaragoza
000064413 700__ $$0(orcid)0000-0001-5835-1223$$aOrtega-Liebana, M.C.$$uUniversidad de Zaragoza
000064413 700__ $$0(orcid)0000-0002-4546-4111$$aHueso, J.L.
000064413 700__ $$0(orcid)0000-0002-8701-9745$$aSantamaria, J.$$uUniversidad de Zaragoza
000064413 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000064413 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000064413 773__ $$g9, 47 (2017), 41529-41536$$pACS appl. mater. interfaces$$tACS Applied Materials & Interfaces$$x1944-8244
000064413 8564_ $$s1050751$$uhttps://zaguan.unizar.es/record/64413/files/texto_completo.pdf$$yPostprint
000064413 8564_ $$s43864$$uhttps://zaguan.unizar.es/record/64413/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000064413 909CO $$ooai:zaguan.unizar.es:64413$$particulos$$pdriver
000064413 951__ $$a2019-07-09-12:50:50
000064413 980__ $$aARTICLE