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Manganese oxide supported Pt single atoms (Pt/MnO) are prepared by the molten salt method. Catalytic oxidation of toluene and iso-hexane, typical emissions from furniture paints industry, is tested. Pt/MnO shows poor and high catalytic stability for toluene and iso-hexane oxidation, respectively. Enhancement in the catalytic stability for toluene oxidation is observed after the hydrogen reduction treatment of Pt/MnO at 200 °C. The hydrogen treated catalyst possesses the weaker Mn-O bonds and lower coordination number of PtO, with superior mobility of lattice oxygen and appropriate toluene adsorption. Balancing lattice oxygen mobility and volatile organic compounds adsorption is important for the catalytic stability of Pt/MnO. For the oxidation of toluene and iso-hexane mixture, owing to the competitive adsorption, iso-hexane oxidation is greatly inhibited, while toluene oxidation is not influenced. The present Pt/MnO catalyst holds promising prospect in furniture paints industry applications because of high catalytic stability and water resistance ability.
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http://dx.doi.org/10.1016/j.jhazmat.2021.127337 | DOI Listing |
Chem Commun (Camb)
September 2025
University of Belgrade-Faculty of Physical Chemistry, Studentski trg 12-16, Belgrade, Rebublic of Serbia.
Carbon aerogels and xerogels, with their 3D porous architectures, ultralow density, high surface area, and excellent conductivity, have emerged as multifunctional materials for energy and environmental applications. This review highlights recent advances in the synthesis of these materials polymerisation, drying, and carbonisation, as well as the role of novel precursors such as graphene, carbon nanotubes, and biomass. Emphasis is also placed on doped and metal-decorated carbon gels as efficient electrocatalysts for oxygen reduction reactions, enabling four- and two-electron pathways for energy conversion and the production of green HO, respectively.
View Article and Find Full Text PDFPhys Chem Chem Phys
September 2025
Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China.
Transition metal dichalcogenides (TMDs) have been extensively studied as efficient photocatalysts for water splitting. However, the utilization efficiency of photogenerated carriers remains a major limitation for their practical applications. An effective approach to address this issue is the construction of Z-scheme heterostructures.
View Article and Find Full Text PDFChembiochem
September 2025
Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, via Mangiagalli 25, 20133, Milan, Italy.
This study investigates the synthesis of aromatic nitriles using an evolved variant of OxdF1 (L318F/F306Y), an aldoxime dehydratase from Pseudomonas putida F1, engineered for improved catalytic efficiency toward benzaldehyde oxime. The double OxdF1 (L318F/F306Y) mutant effectively catalyzes the conversion of various benzaldoxime derivatives to the corresponding nitriles. Due to the enzyme's inherent instability, immobilized whole-cell systems are employed in a flow reactor to improve its stability and broaden its applicability, with the biotransformation of benzaldehyde oxime and 2,6-difluorobenzaldehyde oxime serving as case studies.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2025
Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, School of Chemistry, LIFM, IGCME, GBRCE for Functional Molecular Engineering, Sun Yat-Sen University, Guangzhou, 510006, China.
Oximes serve as indispensable intermediates in synthetic chemistry, owing to their distinctive C═N─OH structure, conferring highly versatile reactivity. Synthesis of oxime via the electrochemical method has potential advantages, accompanied by the upgrading of industrialization. Herein, we propose a novel strategy by introducing nickel (Ni) mediation to obtain high-spin iron (Fe)(III) in phthalocyanine structure for synthesizing glyoxylate oxime via electrocatalytic nitric oxide (NO) coupling with keto acid.
View Article and Find Full Text PDFEnviron Geochem Health
September 2025
Department of Chemistry, Government Arts College(A), Salem, Tamil Nadu, 636007, India.
A CoO/AgMoO/CeOternary nanocomposites photocatalyst was successfully synthesized through a straightforward ethanol-assisted chemical method. Comprehensive characterization of its structural and optical properties was conducted using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-Vis diffuse reflectance spectroscopy (UV-DRS), and photoluminescence (PL) analysis. XRD analysis confirmed the presence of CoO, AgMoO and CeO in the ternary composite sample.
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