000161698 001__ 161698
000161698 005__ 20251017144602.0
000161698 0247_ $$2doi$$a10.1021/acsanm.5c02235
000161698 0248_ $$2sideral$$a144339
000161698 037__ $$aART-2025-144339
000161698 041__ $$aeng
000161698 100__ $$aRuiz-Almoguera, David
000161698 245__ $$aRecycling Properties of Iridium Nanoparticles Anchored on Graphene as Catalysts in Alcohol Oxidation
000161698 260__ $$c2025
000161698 5060_ $$aAccess copy available to the general public$$fUnrestricted
000161698 5203_ $$aIn this paper, we describe the synthesis, characterization, and recycling properties of iridium nanoparticles (IrNPs) anchored on graphene (IrNPs@GNPs) as a catalyst for alcohol oxidation. The formation of this hybrid material (comprising metal nanoparticles on graphene) is achieved in a single step under mild conditions. Graphene serves not only as a support for metal nanoparticles but also plays a critical role in controlling nanoparticle growth and nucleation while enhancing stability by preventing sintering. The IrNPs exhibit a spherical morphology with a small average size distribution (2.1 nm). The IrNPs@GNPs is an efficient catalytic material in the conversion of alcohols to the corresponding carbonyls in a sustainable manner, as supported by quantitative sustainability metrics. Oxidation reactions proceed at room temperature, using water as the solvent and atmospheric oxygen as the terminal oxidant. We detail the catalytic activity, substrate scope, and reuse/recycling of this hybrid material. Furthermore, we identify the primary deactivation pathway of the catalyst and present a regeneration protocol that restores its initial activity. The reuse and recyclability of iridium nanoparticles on graphene represent a significant advancement in the sustainable application of iridium-based catalysts.
000161698 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E31-23R$$9info:eu-repo/grantAgreement/ES/MICINN/CEX2023-001286-S$$9info:eu-repo/grantAgreement/ES/MICINN/PID2021-126071OB-C22
000161698 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000161698 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000161698 700__ $$0(orcid)0000-0001-9193-3874$$aMartín, Santiago$$uUniversidad de Zaragoza
000161698 700__ $$aSorribes, Iván
000161698 700__ $$aMata, José A.
000161698 7102_ $$12012$$2755$$aUniversidad de Zaragoza$$bDpto. Química Física$$cÁrea Química Física
000161698 773__ $$g8, 23 (2025), 12342-12352$$pACS appl. nano mater.$$tACS APPLIED NANO MATERIALS$$x2574-0970
000161698 8564_ $$s6901338$$uhttps://zaguan.unizar.es/record/161698/files/texto_completo.pdf$$yVersión publicada
000161698 8564_ $$s3315428$$uhttps://zaguan.unizar.es/record/161698/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000161698 909CO $$ooai:zaguan.unizar.es:161698$$particulos$$pdriver
000161698 951__ $$a2025-10-17-14:14:21
000161698 980__ $$aARTICLE