76113 20191212100702.0 doi 10.1039/c7dt03360e sideral 104633 ART-2018-104633 eng (orcid)0000-0002-4678-7465 Usón, L. Towards the continuous production of Pt-based heterogeneous catalysts using microfluidic systems 2018 Access copy available to the general public Unrestricted The continuous production of Pt-based heterogeneous catalysts based on ultra-small (<2 nm) noble metal nanoparticles deposited on mesoporous ordered silica and their catalytic activity in VOC abatement are here reported. Microfluidic reactors can be used not only to enable the fast and controlled production of ultra-small Pt nanoparticles (NPs), but also alloyed NPs including PtPd, PtRu and PtRh can be formed in short residence times (between 60 s and 5 min). A novel continuous and homogeneous loading of these catalytic NPs on SBA-15 used as a mesoporous support is also here reported. This procedure eases the NP loading and minimizes washing post-treatments. A 12-fold decrease in the synthesis time was obtained when using this microfluidic reactor compared to the traditional batch production of Pt NPs. Microflow and batch type reactors yielded a Pt precursor conversion to generate Pt NPs with a 90% and 85% yield, respectively. Under the same conditions, the productivity of the microfluidic system (27 mg Pt NPs per h) was twice the one achieved in the conventional batch type reactor. The catalytic performance of the supported catalysts separately prepared by microfluidics and by conventional impregnation under the same conditions and with the same noble metal loading was also compared in the n-hexane abatement as a model of VOCs. Both catalysts were active in the VOC oxidation reaction but a 95% reduction in the catalyst synthesis time was obtained when using the catalysts produced in the microfluidic platform. For this reaction a long-term activity test was successfully carried out at 175 °C during 30 h on stream using the heterogeneous catalyst prepared by using the flow reactor. info:eu-repo/grantAgreement/EC/FP7/614715/EU/A Photo-triggered On-demand Drug Delivery System for Chronic Pain/NANOHEDONISM info:eu-repo/grantAgreement/EC/FP7/321642/EU/Development of a microfluidic platform to produce nanomaterials and assessment on new nanotechnology applications/PLATFORM2NANO info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 4.052 2018 CHEMISTRY, INORGANIC & NUCLEAR 7 / 45 = 0.156 2018 Q1 T1 1.12 2018 Inorganic Chemistry 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0003-3165-0156 Arruebo, M. Universidad de Zaragoza (orcid)0000-0002-6873-5244 Sebastian, V. Universidad de Zaragoza 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 47, 5 (2018), 1693-1702 Dalton Trans. Dalton Transactions 1477-9226 692179 http://zaguan.unizar.es/record/76113/files/texto_completo.pdf Postprint 69893 http://zaguan.unizar.es/record/76113/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:76113 articulos driver 2019-12-12-10:04:52 ARTICLE