000170233 001__ 170233
000170233 005__ 20260407115449.0
000170233 0247_ $$2doi$$a10.1039/d5dt02759d
000170233 0248_ $$2sideral$$a148738
000170233 037__ $$aART-2026-148738
000170233 041__ $$aeng
000170233 100__ $$aMedina-Vargas, Judith
000170233 245__ $$aLigand decorated nickel-based nanoparticles supported onto MXenes in catalytic hydrogenation of N-heterocycles
000170233 260__ $$c2026
000170233 5060_ $$aAccess copy available to the general public$$fUnrestricted
000170233 5203_ $$aThe development of efficient first-row transition metal catalysts is essential for advancing sustainable chemical processes. In this study, we report the synthesis of nickel-based nanoparticles (NiNPs) functionalized with N-heterocyclic carbene ligands and immobilized onto Ti3C2 MXene. Our convergent synthetic approach enables comprehensive and straightforward characterization of each component within the final hybrid material. The NiNPs are obtained through chemical reduction of a well-defined nickel organometallic complex, resulting in the formation of small nickel metal nanoparticles (3.0 ± 0.8 nm) that are rapidly oxidized to the corresponding NiO and Ni(OH)2 based nanoparticles containing surface NHC ligands. The hybrid catalyst exhibits high activity and selectivity in the hydrogenation of N-heterocycles under hydrogenation conditions, achieving quantitative yields at low catalyst loadings, particularly notable for a nickel-based system. Recycling studies revealed progressive catalyst deactivation, primarily due to sintering of NiNPs, which reduces the number of active surface sites. However, the catalytic activity can be fully restored through a mild regeneration treatment under reducing conditions. These findings underscore the potential of NiNP/MXene-based materials for selective hydrogenation reactions, and highlight the importance of addressing key challenges in sustainability such as the use of non-noble metals, catalyst stability and recyclability. Further design modifications aimed at preventing nanoparticle sintering may enhance the long-term viability of these systems in catalytic hydrogenation processes.
000170233 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2021-126071OB-C21$$9info:eu-repo/grantAgreement/ES/AEI/PID2021-126071OB-C22$$9info:eu-repo/grantAgreement/ES/DGA/E31-23R$$9info:eu-repo/grantAgreement/ES/MICIU/CEX2023-001286-S$$9info:eu-repo/grantAgreement/ES/MICIU/PID2022-143164OA-I00
000170233 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000170233 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000170233 700__ $$0(orcid)0000-0001-9193-3874$$aMartín, Santiago$$uUniversidad de Zaragoza
000170233 700__ $$aSorribes, Iván
000170233 700__ $$aGarcía, Hermenegildo
000170233 700__ $$aMata, José A.
000170233 7102_ $$12012$$2755$$aUniversidad de Zaragoza$$bDpto. Química Física$$cÁrea Química Física
000170233 773__ $$g55, 10 (2026), 4181-4195$$pDalton Trans.$$tDalton Transactions$$x1477-9226
000170233 8564_ $$s3370173$$uhttps://zaguan.unizar.es/record/170233/files/texto_completo.pdf$$yVersión publicada
000170233 8564_ $$s2811433$$uhttps://zaguan.unizar.es/record/170233/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000170233 909CO $$ooai:zaguan.unizar.es:170233$$particulos$$pdriver
000170233 951__ $$a2026-03-26-14:32:14
000170233 980__ $$aARTICLE