Microporous and Mesoporous Materials最新文献

{"title":"Hierarchical Zr-BEA zeolites as catalysts for the transformation of levulinic acid to γ-valerolactone under mild conditions","authors":"Roman Barakov ,&nbsp;Ivan Ermakov ,&nbsp;Zakhar Enbaev ,&nbsp;Sergey Maksimov ,&nbsp;Andrei Smirnov ,&nbsp;Irina Ivanova","doi":"10.1016/j.micromeso.2025.113602","DOIUrl":"10.1016/j.micromeso.2025.113602","url":null,"abstract":"<div><div>An important stage of cascade transformation of lignocellulosic biomass to value-added chemicals is the conversion of levulinic acid and its esters in γ-valerolactone, which has a potential application as a bio-based solvent, an intermediate in the production of polymers, food additives and bio-fuels. Herein, hierarchical Zr-BEA zeolites have demonstrated high catalytic performance and reusability in this reaction under mild conditions (115 °C, atmospheric pressure). The novel approach for the preparation of these zeolites with various Zr content has been proposed. This two-step post-synthetic method includes dealumination of hierarchical Al-BEA obtained in the highly concentrated reaction mixture followed by zirconium incorporation <em>via</em> wet impregnation. The hierarchical Zr-BEA zeolite with the highest degree of zirconium incorporation, i.e. 42 %, calculated as the ratio of Lewis acid site concentration and Zr content, is obtained using wet impregnation in dry ethanol and ZrCl₄ as a zirconium source. This catalyst provides a higher initial rate of γ-valerolactone formation, which is 1.0 mmol_GVL/g_cath, as compared to commercially-based Zr-BEA, for which the rate is 0.2 mmol_GVL/g_cath. The higher reaction rate over hierarchical zeolite is associated with the improved accessibility of its strong Lewis acid sites, which are the most active in Meerwein-Ponndorf-Verley reduction. An even higher initial rate is achieved over hierarchical Zr-BEA in the conversion of butyl levulinate since this ester does not block the basic framework oxygen of active Zr–O sites, as in the case of levulinic acid. The plausible mechanism for the transformation of levulinic acid over Lewis and Brønsted acid sites has been proposed.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"391 ","pages":"Article 113602"},"PeriodicalIF":4.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface charge regulation for enhanced control of water states in ZSM-5 materials to boost water evaporation power generation","authors":"Jiangying Qu,&nbsp;Qian Yin,&nbsp;Zhe Jiao,&nbsp;Jiawei Ge,&nbsp;Feng Gao,&nbsp;Yunhao Zang","doi":"10.1016/j.micromeso.2025.113606","DOIUrl":"10.1016/j.micromeso.2025.113606","url":null,"abstract":"<div><div>Water evaporation power generation (WEPG) is recognized as a novel and pollution-free energy technology. However, the regulation of water states in generating materials and their impact on power generation performance remain under-explored. In this study, a series of samples denoted as ZSM-5/Tx (where x = 0–7.00), with varying surface charges, are prepared by tailoring their Si/Al ratio. It is found that a lower Si/Al ratio results in a higher surface charge of the material. Consequently, a positive correlation between surface charge and WEPG performances is observed, with ZSM-5/Tx samples that have higher surface charges showing increased open-circuit voltage (<em>V</em>_<em>oc</em>) and short-circuit current (<em>I</em>_<em>sc</em>). Among all the samples, the typical ZSM-5/T3.55 sample, which has the highest surface charge, demonstrates the highest <em>V</em>_<em>oc</em> of 1.35 V and <em>I</em>_<em>sc</em> of 223 nA. Theoretical calculations indicate that charge accumulation between ZSM-5/Tx and water molecules increases with surface charge, i.e., 0.00038 e⁻ for ZSM-5/T1.50, 0.0005 e⁻ for ZSM-5/T3.55, and 0.00035 e⁻ for ZSM-5/T7.00. The study further reveals that surface charge influences the water states of intermediate water (IW) and free water (FW) within the microchannels of ZSM-5/Tx. As the surface charge of ZSM-5/Tx increases, the IW/FW ratio follows the order of 0.72 (ZSM-5/T3.55) &gt; 0.59 (ZSM-5/T1.50) &gt; 0.48 (ZSM-5/T7.00) &gt; 0.36 (ZSM-5/T0). The increase in the IW/FW ratio reduces energy consumption and enhances water evaporation, and IW is more likely to detach from ZSM-5/Tx at higher surface charges, thus improving power generation efficiency.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"391 ","pages":"Article 113606"},"PeriodicalIF":4.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of Cu distribution in Cu/SAPO-34 catalyst on the continuous direct conversion of methane to methanol","authors":"Yihang Jiang ,&nbsp;Wenzhi Li ,&nbsp;Xia Zhang ,&nbsp;Liang Yuan","doi":"10.1016/j.micromeso.2025.113607","DOIUrl":"10.1016/j.micromeso.2025.113607","url":null,"abstract":"<div><div>Direct oxidation of methane to methanol is a significant approach for utilizing natural gas and unconventional natural gas, reducing carbon emissions, and increasing energy efficiency. A series of Cu/SAPO-34 catalysts were successfully prepared using a simple and controllable solid ion exchange method for the continuous conversion of methane to methanol. The 1.5 wt% Cu/SAPO-34 achieves highest methanol yield of 178.3 μmol/(g_cat·h), while maintaining a methanol selectivity of 47 % at 400 °C. The distribution of copper in the zeolite significantly affects its direct conversion of methane to methanol. Through ex-situ DRIFTS, EPR, and H₂-TPR, all Cu/SAPO-34 catalysts contained two types of copper: one is isolated copper located on the hexagonal rings of the zeolite, which effectively conversion methane to methanol, and copper oxide nanoparticles in a cage, which easily cause over-oxidation of methanol. The in-situ DRIFTS confirmed the Cu²⁺-Cu⁺-Cu²⁺ redox cycle mechanism of the reaction.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"391 ","pages":"Article 113607"},"PeriodicalIF":4.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrothermal synthesis of mesoporous cerium oxide nanoparticles with improved properties by niobium doping","authors":"Mariana Erculano da Fonseca ,&nbsp;Gabriel de Freitas Batista ,&nbsp;Tomaz Alves dos Santos Lima ,&nbsp;Márcio César Pereira ,&nbsp;Raquel Vieira Mambrini","doi":"10.1016/j.micromeso.2025.113608","DOIUrl":"10.1016/j.micromeso.2025.113608","url":null,"abstract":"<div><div>Nanostructured materials exhibit remarkable properties, making them promising candidates for effluent treatment applications. The doped compounds can further enhance their efficiency. Herein, cerium and niobium-based nanomaterials were synthesized using an easy hydrothermal method for application in effluent treatment. Materials with different Ce:Nb molar ratios were produced and characterized using various techniques, including X-ray fluorescence, powder X-ray diffraction, adsorption-desorption isotherms of N₂, Raman spectroscopy, electron paramagnetic resonance spectroscopy, thermogravimetric analysis, scanning electron microscopy combined with energy-dispersive X-ray spectroscopy, and UV–Vis diffuse reflectance spectroscopy. The results confirmed the incorporation of niobium into the structures of the materials, which showed mesoporous characteristics, and the Rietveld refinement shows a decrease in lattice parameters, suggesting that niobium replaces some Ce ions in the CeO₂ structure. A higher niobium ratio led to a larger pore diameter but a smaller surface area. Additionally, the materials exhibited absorption in the UV region and a bandgap between 2.75 and 2.85 eV, demonstrating their potential for use in photocatalytic reactions. The materials were tested for oxidation of dye compounds under ultraviolet and visible light, and the results showed a tremendous oxidative potential. The best condition presented 100 % degradation after 60 min of reaction, and after five reaction cycles, it was kept above 90 % removal. Mass spectrometry with electrospray ionization (ESI-MS) spectra and total organic carbon (TOC) rate showed the high oxidation rate of the dye. So, niobium doping in cerium oxide showed an increased catalytic potential, which does not require catalytic support or a semiconductor for photocatalysis reactions.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"391 ","pages":"Article 113608"},"PeriodicalIF":4.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydration pathways of CaCl2 inside matrices with different pore sizes","authors":"Michaela C. Eberbach ,&nbsp;A.I. Shkatulov ,&nbsp;H.P. Huinink ,&nbsp;H.R. Fischer ,&nbsp;O.C.G. Adan","doi":"10.1016/j.micromeso.2025.113605","DOIUrl":"10.1016/j.micromeso.2025.113605","url":null,"abstract":"<div><div>For use as a heat storage material, CaCl₂ is often impregnated into porous materials. This is done to stabilize the salt against conglomeration and its dissolution due to the low deliquescence relative humidity. However, CaCl₂ has overlapping temperature and water vapor pressure conditions for its trito- and monohydrate, which are kinetically hindered against each other creating path-dependent (de-)hydration steps. These pathways may change under the influence of confinement. These changes can influence the temperature output for heat batteries using CaCl₂ composites and could make the taken pathways for hydration and dehydration either more complex or simpler than the pure salt. So, in this research, the hydration and dehydration steps of CaCl₂ inside different clays (Vermiculite, Halloysite, and Sepiolite) and silica gels were investigated with respect to their transformations compared to the bulk salt. Therefore, the kinetic phase transition onsets were determined with isobaric TGA measurements together with PXRD in situ experiments to confirm or identify the crystalline phases. This showed that inside pores, CaCl₂ forms the monohydrate rather than the tritohydrate. The decrease of pore diameter leads to easier formation of monohydrate over tritohydrate. This trend can be explained by the crystal structures of the hydrates and their unit cell volumes considering that larger crystals are difficult to form in the limited space inside the pore systems. This change in phase transition steps influences the transition temperatures, which affects its application for heat storage.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"391 ","pages":"Article 113605"},"PeriodicalIF":4.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure-directing effects of tetraalkylammonium cations in the interzeolite transformation of zeolitic MWW-type nickel silicate","authors":"Siyeon Lee,&nbsp;Sungjoon Kweon,&nbsp;Min Bum Park","doi":"10.1016/j.micromeso.2025.113604","DOIUrl":"10.1016/j.micromeso.2025.113604","url":null,"abstract":"<div><div>In this study, we successfully synthesized RUT-type and cristobalite nickel silicate materials by using tetramethylammonium (TMA⁺) and phenyltrimethylammonium ions (PTMA⁺), respectively, through the interzeolite transformation of the parent MWW-type nickel silicate (Ni-MWW). Under hydrothermal conditions, the parent Ni-MWW gradually decomposed into amorphous nickel silicate and subsequently reassembled into RUT and cristobalite structures after 12 and 24 h of crystallization time, respectively. With increasing crystallization time, the framework Ni species were stabilized by converting intermediate Ni species into isolated Ni species, resulting in a more thermodynamically stable chemical state. During the interzeolite transformation process, we obtained well-dispersed Ni species within fully crystallized RUT and cristobalite structures, with Ni loadings of approximately 7 and 8 wt%, respectively. Here, we comprehensively discuss the structure-directing effects of tetraalkylammonium cations, which lead to variations in both crystallization and stabilization rates of framework Ni species through the interzeolite transformation of Ni-MWW. This includes the use of TMAOH and PTMAOH, as well as our previous studies on tetraethylammonium hydroxide (TEAOH), tetrapropylammonium hydroxide (TPAOH), and N,N,N-trimethyl-1-adamantammonium hydroxide (TMAdaOH).</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"391 ","pages":"Article 113604"},"PeriodicalIF":4.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances in mesoporous silica nanoparticles as carriers for drug delivery and other biomedical applications","authors":"Mohammed Ilyes Grini ,&nbsp;Chahinez Benbayer ,&nbsp;Salima Saidi-Besbes ,&nbsp;Abdelhamid Elaissari","doi":"10.1016/j.micromeso.2025.113603","DOIUrl":"10.1016/j.micromeso.2025.113603","url":null,"abstract":"<div><div>Mesoporous silica nanoparticles (MSNs) are significant porous materials that have gained increasing interest for biomedical applications due to their appealing physicochemical properties and advantageous morphology. Their tailored mesoporous structure and porosity, thermal stability, high surface area, and framework composition make them an attractive drug delivery platform for treating a range of diseases, offering significant advantages over traditional drug nanocarriers. A variety of small molecules and macromolecules, including proteins, DNA, RNA, genes, and antigens, have been successfully loaded into engineered MSNs-based systems. The chemical flexibility of MSNs was exploited to impart new functionality to these nanoparticles, with the objective of enhancing the loading of bioactive substances and their controlled and targeted release, as well as improving their biocompatibility and bioavailability. These developments have resulted in the creation of smart carriers, such as stimuli-reactive drug delivery systems, which demonstrate remarkable performance in both <em>in vivo</em> and <em>in vitro</em> environments. This review provides an overview of the different types of MSNs and the synthesis methods used for their fabrication. The main drug loading approaches will be discussed, with an emphasis on the recent developments in stimuli-responsive drug delivery systems that can specifically respond to physical and chemical changes in their environment. Additionally, current ongoing research and future trends in biomedical applications of MSNs, including tissue engineering, imaging, biosensing, and theragnostic will be highlighted.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"391 ","pages":"Article 113603"},"PeriodicalIF":4.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D printed mullite monoliths with triply periodic minimal surface (TPMS) architectures functionalized with HKUST-1 for CO2 capture","authors":"Arianna Bertero ,&nbsp;Bartolomeo Coppola ,&nbsp;Julien Schmitt ,&nbsp;Olinda Gimello ,&nbsp;Philippe Trens ,&nbsp;Paola Palmero ,&nbsp;Jean-Marc Tulliani","doi":"10.1016/j.micromeso.2025.113601","DOIUrl":"10.1016/j.micromeso.2025.113601","url":null,"abstract":"<div><div>Ceramic porous scaffolds functionalized with Metal Organic Frameworks (MOFs) are promising systems for carbon capture, providing a valuable strategy to decrease CO₂ atmospheric concentration and mitigating the dramatic issues related to global warming. Thus, the present work focuses on the combination of a highly microporous CO₂ adsorbent HKUST-1 coating with porous and interconnected mullite (3Al₂O₃⋅2SiO₂) substrates obtained by a combination of additive manufacturing and impregnation techniques, before a complete characterization of their CO₂-sorption properties. Two triply periodic minimal surface (TPMS) architectures, Schwartz Primitive and gyroid, were fabricated with high resolution and accuracy by Digital Light Processing, using two mullite powders, labelled Mc and Mf, presenting different compositions and particle size distribution. Mullite monoliths were functionalized with a continuous HKUST-1 (Cu₃(BTC)₂) coating. The impact of the type of architecture on the amount of deposited HKUST-1 and the sorption capacity were monitored. MOFs mass intakes reached 4.2 and 3.9 wt% for Mc Schwartz primitive and gyroid respectively. The textural properties and CO₂ sorption capacity of the materials were studied by N₂ and CO₂ sorption at 77 K and 298 K respectively. CO₂ gas chromatography was performed at different temperatures (32 °C–80 °C) and gas flows (10–40 mL/min) using a filled column with the different materials. TPMS monoliths were compared to traditional adsorbent powder bed in terms of pressure drops, permeability, gas speed and retention time normalized by MOFs amount, highlighting the advantages of the shaping approaches with respect to powder beds. High permeabilities were reached (Darcy's coefficient k ≈ 10 x10⁻¹³ m² for Mc Schwartz). Monoliths also promoted CO₂/adsorbent contact time, lowering the gas speed below 1.5 cm/s, compared to 2–5 cm/s, in the case of powder bed. HKUST-1 functionalized TPMS monoliths drastically enhanced the CO₂ retention time normalized by MOFs amount, with values increased by a factor 6, from 7 s/g for the powder bed to 30 s/g and 20 s/g for gyroid and Schwartz primitive scaffolds respectively. This work represents a crucial step forward in the development of hierarchically porous and geometrically complex carbon capture and storage systems. Indeed, the current work goes beyond our previous studies by producing and comparing different TPMS designs and introducing for the first time gas chromatography to demonstrate the advantages of TPMS scaffolds in enhancing CO₂ adsorption efficiency.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"390 ","pages":"Article 113601"},"PeriodicalIF":4.8,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sulfated ZrO2 dispersed MCM-41 as an efficient catalyst in the production of polyoxymethylene dimethyl ether, an alternative for diesel: Brønsted acid sites key to its selective formation","authors":"Mahesh Dumpalapally ,&nbsp;Sasikumar Boggala ,&nbsp;Hari Padmasri Aytam ,&nbsp;Kalpana Manda ,&nbsp;Ashok Jangam ,&nbsp;Venu Boosa ,&nbsp;Anjaneyulu Chatla ,&nbsp;Sreedhar Inkollu ,&nbsp;Venugopal Akula","doi":"10.1016/j.micromeso.2025.113593","DOIUrl":"10.1016/j.micromeso.2025.113593","url":null,"abstract":"<div><div>MCM-41-supported sulfated zirconia (SO₄²⁻/ZrO₂/MCM-41) was identified as an efficient catalyst for the generation of polyoxymethylene dimethyl ether (PODE) from the polymerization of dimethoxymethane (DMM) with 1,3,5-trioxane (TOX). The type of acid sites involved and their surface conditions are deduced from NH₃-TPD and pyridine-adsorbed IR techniques that revealed strong acidic site presence, which was responsible for its superior catalytic efficiency. Strong Brønsted acidic sites on the SO₄²⁻/ZrO₂/MCM-41 catalyst surface led to a 72 % DMM conversion and a 42 % selectivity, with the desired chain length of PODE_3-5. The IR and XPS analyses confirmed the existence of sulfate moieties on the catalyst surface. The experimental results showed stable catalytic activity up to four recycles without any leaching of the sulfate moiety.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"391 ","pages":"Article 113593"},"PeriodicalIF":4.8,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metal-acid bifunctional catalysts based on porous aromatic frameworks for tandem alkylation-hydrogenation of phenolics with furanics","authors":"Andrei Dubiniak ,&nbsp;Leonid Kulikov ,&nbsp;Sergey Egazar'yants ,&nbsp;Anton Maximov ,&nbsp;Eduard Karakhanov","doi":"10.1016/j.micromeso.2025.113594","DOIUrl":"10.1016/j.micromeso.2025.113594","url":null,"abstract":"<div><div>Noble metal catalysts based on porous aromatic frameworks modified with sulfo groups were studied in tandem alkylation-hydrogenation reaction between lignocellulose-derived furanic (furfural, furfuryl alcohol and 5-hydroxymethylfurfural) and phenolic compounds (phenol, m-cresol, guaiacol) to produce high-density fuel precursors. Platinum catalysts were synthesized based on PAF-30-SO₃H-3 and PAF-30-SO₃H-5 supports with 3 and 5 % of sulfur, respectively, and both with 0.8 % of platinum. Hydroalkylation of mixtures of two substrates was performed. The reaction of guaiacol with furfuryl alcohol is characterized by the highest yields of long-chain products. The influence of substrates ratio, H₂ pressure, reaction temperature and time on selectivity and activity of the catalysts was studied. The highest yield (77 %) of long-chain oxygenates among all experiments was achieved under the following reaction conditions: 2 MPa H₂, 4 h, 130 °C and 1:8 mol/mol furfuryl alcohol-guaiacol ratio. Catalysts Pd-PAF-30-SO₃H-3 (with 1.1 % of palladium) and Ru-PAF-30-SO₃H-3 (with 0.3 % of ruthenium) were tested in the tandem process to evaluate the impact of metal on reaction. To our knowledge, tandem alkylation-hydrogenation between biomass-derived furanics and phenolics over bifunctional catalysts based on organic polymers is reported for the first time. Moreover, some products of hydroalkylation (e.g., tricyclic oxygenates) haven't yet been described.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"390 ","pages":"Article 113594"},"PeriodicalIF":4.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}