Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide This study investigates the structure and catalytic properties of bimetallic nanocomposites derived from PdCo- and PdMn-based metal–organic frameworks. These materials, synthesized via chemical (Q) and thermal treatments (T), resulted in PdCo-QT and PdMn-QT catalysts containing Pd-based nanoparticles modified with Co or Mn and supported on N-doped carbon. Detailed characterization techniques confirm these complex structures, including high-resolution transmission electron microscopy, scanning transmission electron microscopy energy-dispersive X-ray spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and X-ray absorption spectroscopy. The catalytic performances of these materials were evaluated for the selective semihydrogenation of phenylacetylene and 4-octyne under soft conditions (1 H 2 bar, room temperature) in batch reactors, demonstrating very high selectivity (≥95 mol %) toward alkenes at high conversion levels (≥94 mol %). Moreover, they displayed significant stability after five catalytic cycles with minimal leaching and highly competitive values of alkyne productivity in the semihydrogenation of phenylacetylene. The study also explored the potential of these catalysts in continuous gas-phase reactions, where PdCo-QT demonstrated remarkable catalytic activity and selectivity with a high gas hourly space velocity.
Source: ACS Catalysis
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Funders: European Commission, Ministerio de Ciencia, Tecnología e Innovación Productiva, Generalitat Valenciana, Ministero dell’Istruzione, dell’Università e della Ricerca, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Universidade Federal do Paraná, Horizon 2020 Framework Programme, Agencia Estatal de Investigación, NextGenerationEU
Awards: G1047231290, G1061321491, G1175115578, G120905174, G1272927172, G1422035950, G1479091377, G1482201912, G1530851820, G1566999199, G1622702131, G210041235, G2114305129, G2140027785, G2262748287, G2545329239, G2601397997, Selective CO2 conversion to renewable methanol through innovative heterogeneous catalyst systems optimized for advanced hydrogenation technologies (microwave, plasma and magnetic induction)., G280048558, G30027904, G300979063, G3220251042, G3291038552, G3325152418, G34346518, G3480869486, G3523202554, G357246561, G3681454997, G3857581125, G4042783231, G425668148, G4728539003, G5080475149, G5177266462, G531036588, G5338730000, G6349402090, G719137992, G7496233463, G792975244, G8431339098
OpenAlex ID: W4409569673