000078846 001__ 78846
000078846 005__ 20230926093528.0
000078846 0247_ $$2doi$$a10.1126/sciadv.aau9000
000078846 0248_ $$2sideral$$a111246
000078846 037__ $$aART-2019-111246
000078846 041__ $$aeng
000078846 100__ $$0(orcid)0000-0001-5036-1355$$aRamirez, A.
000078846 245__ $$aEscaping undesired gas-phase chemistry: Microwave-driven selectivity enhancement in heterogeneous catalytic reactors
000078846 260__ $$c2019
000078846 5060_ $$aAccess copy available to the general public$$fUnrestricted
000078846 5203_ $$aResearch in solid-gas heterogeneous catalytic processes is typically aimed toward optimization of catalyst composition to achieve a higher conversion and, especially, a higher selectivity. However, even with the most selective catalysts, an upper limit is found: Above a certain temperature, gas-phase reactions become important and their effects cannot be neglected. Here, we apply a microwave field to a catalyst-support ensemble capable of direct microwave heating (MWH). We have taken extra precautions to ensure that (i) the solid phase is free from significant hot spots and (ii) an accurate estimation of both solid and gas temperatures is obtained. MWH allows operating with a catalyst that is significantly hotter than the surrounding gas, achieving a high conversion on the catalyst while reducing undesired homogeneous reactions. We demonstrate the concept with the CO 2 -mediated oxidative dehydrogenation of isobutane, but it can be applied to any system with significant undesired homogeneous contributions.
000078846 536__ $$9info:eu-repo/grantAgreement/EUR/ERC/HECTOR-267626$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/CTQ2015-65226
000078846 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000078846 590__ $$a13.116$$b2019
000078846 592__ $$a6.062$$b2019
000078846 591__ $$aMULTIDISCIPLINARY SCIENCES$$b4 / 71 = 0.056$$c2019$$dQ1$$eT1
000078846 593__ $$aMultidisciplinary$$c2019$$dQ1
000078846 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000078846 700__ $$0(orcid)0000-0002-4546-4111$$aHueso, J.L.
000078846 700__ $$0(orcid)0000-0001-7559-9669$$aAbian, M.$$uUniversidad de Zaragoza
000078846 700__ $$0(orcid)0000-0003-4679-5761$$aAlzueta, M.U.$$uUniversidad de Zaragoza
000078846 700__ $$0(orcid)0000-0002-4758-9380$$aMallada, R.$$uUniversidad de Zaragoza
000078846 700__ $$0(orcid)0000-0002-8701-9745$$aSantamaria, J.$$uUniversidad de Zaragoza
000078846 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000078846 7102_ $$15005$$2790$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Tecnologi. Medio Ambiente
000078846 773__ $$g5, 3 (2019), eaau9000 [7 pp]$$pSci. adv.$$tScience advances$$x2375-2548
000078846 8564_ $$s252364$$uhttps://zaguan.unizar.es/record/78846/files/texto_completo.pdf$$yVersión publicada
000078846 8564_ $$s143490$$uhttps://zaguan.unizar.es/record/78846/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000078846 909CO $$ooai:zaguan.unizar.es:78846$$particulos$$pdriver
000078846 951__ $$a2023-09-26-09:29:41
000078846 980__ $$aARTICLE