Reaction Kinetics, Mechanisms and Catalysis最新文献

{"title":"Moisture sorption thermodynamics of Moringa oleifera leaf powder: isothermal modeling, activation energy, and mechanistic insights for storage stability","authors":"EL Mehdi EL Handaoui,&nbsp;Ahmed Salim,&nbsp;Oubouali Morad,&nbsp;Maha Adel,&nbsp;Omar Tanane,&nbsp;Abderrahim Jrifi,&nbsp;Omar Fanidi","doi":"10.1007/s11144-026-03186-x","DOIUrl":"10.1007/s11144-026-03186-x","url":null,"abstract":"<div><p>In this paper, the hygroscopic characteristics of powdered leaves of Moringa oleifera were explored experimentally by conducting adsorption isotherm experiments at 25, 40, and 55 °C within water activity (a_w) levels ranging from 0.0016–0.9562. In this case, the equilibrium moisture content values exhibited Type II sigmoidal shapes. For the data analysis, four equations including the Guggenheim-Anderson-de Boer (GAB), Brunauer–Emmett–Teller (BET), Langmuir, and Freundlich models were considered. The GAB model gave the highest accuracy level (R² ≥ 0.997 and RMSE ≤ 0.22). Monolayer moisture content (X_m) decreased from 6.45 g/100g (at 25 °C) to 5.01 g/100g (at 55 °C). Thus, the monolayer moisture content decreased by 22.3% from lower to higher temperatures. The value of the net isosteric heat of sorption (Q_st) was calculated from 51.2 kJ/mol to 44.5 kJ/mol, as moisture content increased. The value of Q_st approached the latent heat of vaporization of pure water. According to the Arrhenius plot, the value of activation energy (E_a) equals to 6.9 kJ/mol. The results obtained from the FTIR spectra revealed that the water adsorption took place through interactions between OH, NH2, and COOH groups and water molecules. The proposed methodology involving isotherm modeling, thermodynamic parameters, activation energies, and FTIR spectra gives a greater insight into the hygroscopic nature of M. oleifera leaf powder and thus offers a basis for the development of drying and storage techniques.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 5","pages":"4519 - 4537"},"PeriodicalIF":2.1,"publicationDate":"2026-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ammonia complex of nickel(II) as precursor for synthesis of highly dispersed Ni/Al2O3 catalysts: the effect of preparation conditions on the physicochemical properties and hydrogenating activity","authors":"Marina V. Bukhtiyarova,&nbsp;Alexey L. Nuzhdin,&nbsp;Irina G. Danilova,&nbsp;Victoria S. Degtyareva,&nbsp;Svetlana O. Utyeva,&nbsp;Vera P. Pakharukova,&nbsp;Evgenia N. Vlasova,&nbsp;Galina A. Bukhtiyarova","doi":"10.1007/s11144-026-03175-0","DOIUrl":"10.1007/s11144-026-03175-0","url":null,"abstract":"<div><p>A series of granulated Ni/Al₂O₃ catalysts were prepared by impregnating the γ-alumina support with a nickel (II) ammine complex solution. The study of catalysts at different stages of preparation using IR and UV–Vis spectroscopy, XRD, thermogravimetric analysis, H₂-TPR, TPD-CO₂ and O₂ chemosorption methods made it possible to trace the evolution of the active component. The interaction between the [Ni(NH₃)₅(H₂O)]²⁺ cations and γ-Al₂O₃ results in the partial replacement of NH₃ ligands with hydroxyl groups of the support, forming inner-sphere complexes between Ni²⁺ ions and the Al₂O₃ surface. Drying the catalyst at 140 °C causes the NH₃ ligands in the nickel complexes to be replaced by H₂O molecules and/or carbonate ligands. The calcination temperature of 300 °C is sufficient for decomposition of the active component precursor to NiO. In the calcined samples, almost all of the nickel oxide is strongly bound to the alumina surface. The highest reducibility was achieved for the samples calcined at 300 °C. Increasing the calcination temperature to 400 °C decreases the reduction rate. It was demonstrated that the reduction of oxide precursors (obtained by calcination at 300–400 °C) in an H₂ flow at 400 °C leads to the formation of a highly dispersed nickel phase on the γ-Al₂O₃ surface. The Ni/Al₂O₃ catalysts synthesized using nickel ammine complexes show ~ 40% higher activity in 2-heptanone hydrogenation compared to the reference catalyst prepared using the nickel(II) nitrate. Increasing the nickel content in the samples from ~ 12 to 18–19 wt% does not significantly alter the Ni specific surface area or the catalytic activity (per mol of Ni).</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 5","pages":"3733 - 3749"},"PeriodicalIF":2.1,"publicationDate":"2026-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Promotional effect of Mg on Fe catalyst during CO2 methanation","authors":"Zeynep Senftleben,&nbsp;Sven Kureti","doi":"10.1007/s11144-026-03174-1","DOIUrl":"10.1007/s11144-026-03174-1","url":null,"abstract":"<div><p>This study investigates CO₂ hydrogenation to CH₄ on a Mg-promoted Fe₂O₃ catalyst, which reveals significant methanation activity. The influence of Mg on the textural and structural properties of fresh, H₂-activated and spent catalysts was comprehensively examined using temperature-programmed reduction by H₂, temperature-programmed desorption of NH₃, CO₂ and H₂, X-ray photoelectron spectroscopy, N₂ physisorption, in-situ Raman spectroscopy as well as ex-situ and in-situ X-ray diffraction. Carbonaceous species formed during CO₂ hydrogenation were characterized by temperature-programmed hydrogenation. The mechanistic results show that Mg retards iron oxide reduction during H₂ activation leading to the formation of smaller Fe crystallites compared to the unpromoted catalyst. Moreover, Mg enhances CO₂ and H₂ adsorption and increases the relative abundance of surface and bulk iron carbides thereby promoting CH₄ formation. The Mg promoter also controls carburization stabilizing the catalytically active Fe₃C phase, while suppressing the formation of the carbon-rich and less active Fe₅C₂ phase. However, Mg simultaneously also facilitates the deposition of unreactive carbon species.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 5","pages":"3689 - 3709"},"PeriodicalIF":2.1,"publicationDate":"2026-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11144-026-03174-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of the synthesis method and pre-treatment conditions on the catalytic performance of lanthanum manganite in preferential oxidation of CO","authors":"Victor O. Anyanwu,&nbsp;Holger B. Friedrich,&nbsp;Sooboo Singh,&nbsp;Thomas Moyo,&nbsp;Abdul S. Mahomed","doi":"10.1007/s11144-026-03180-3","DOIUrl":"10.1007/s11144-026-03180-3","url":null,"abstract":"<div><p>LaMnO₃ perovskite catalysts were synthesized via four methods, co-precipitation (CP), glycol-thermal (GT), sol–gel (SG), and reactive ball milling (BM), to systematically investigate how synthesis-controlled defect engineering governs CO preferential oxidation (CO-PrOx) performance. XRD, STEM-EDX, H₂-TPR, and O₂-TPD characterization revealed that the BM catalyst exhibits a uniquely high concentration of oxygen vacancies and grain boundary defects, arising from mechanochemical energy input during synthesis. Despite possessing the lowest BET surface area (3.0 m² g⁻¹), BM 700 delivered the highest CO-PrOx activity under both air and H₂-reduced pretreatments, achieving a surface-area-specific activity of 20.29 × 10^–6 mol CO m⁻² min⁻¹ at 200 °C under air pretreatment, 5.3–9.0 times higher than CP, GT, and SG analogues. This demonstrates unambiguously that intrinsic active site density, rather than textural surface area, governs catalytic performance. The GT method yielded the most phase-pure LaMnO₃, while CP and SG produced phase-pure materials with intermediate defect densities. These findings establish synthesis-method-controlled defect engineering as the primary design lever for optimizing low-temperature CO-PrOx catalysts.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 5","pages":"4399 - 4427"},"PeriodicalIF":2.1,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11144-026-03180-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wire-arc sprayed zinc coatings as scalable noble-metal-free electrodes for alkaline hydrogen evolution","authors":"Khaled Derkaoui,&nbsp;Yamina Mebdoua,&nbsp;Douaa Baizid,&nbsp;Chaker Serdani,&nbsp;Hadj Lahmar,&nbsp;Soumia Benredouane,&nbsp;Naitbouda Abdelyamine,&nbsp;Boukhouidem Khadidja,&nbsp;Billel Hamdoud,&nbsp;Toufik Hadjersi","doi":"10.1007/s11144-026-03173-2","DOIUrl":"10.1007/s11144-026-03173-2","url":null,"abstract":"<div><p>A wire-arc sprayed zinc (Zn) coating was fabricated on sandblasted mild steel and evaluated as a noble-metal-free electrode for the hydrogen evolution reaction (HER) in alkaline medium. The Zn coating was deposited using an industrial wire-arc thermal spray process and characterized by EPMA–WDS, X-ray diffraction, and nanoindentation to establish its morphology, elemental distribution, phase composition, and mechanical response. The coating exhibited a rough lamellar morphology typical of thermally sprayed metals, with a Zn-rich composition, measurable oxygen contribution, and predominantly crystalline metallic Zn phase. Nanoindentation revealed a compliant Zn coating supported by a mechanically stronger steel substrate, with an intermediate response at the Zn/steel interface. Electrochemical measurements in 1.0 M KOH showed measurable HER activity, with an onset potential of approximately 0.157 V versus RHE and a Tafel slope of about 0.138 V dec⁻¹. EIS analysis indicated non-ideal interfacial behavior associated with the heterogeneous sprayed surface and charge-transfer processes at the Zn/electrolyte interface. The theoretical hydrogen generation rate, estimated from Faraday’s law, reached approximately 255 μmol h⁻¹ under the applied conditions. These results demonstrate that wire-arc spraying can produce Zn-rich, mechanically robust, and electrically conductive coatings suitable for evaluation as scalable, low-cost HER electrodes.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 5","pages":"4289 - 4309"},"PeriodicalIF":2.1,"publicationDate":"2026-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Alginate assisted montmorillonite clay beads for malachite green adsorption: kinetics and mechanisms","authors":"Horiya Boukhatem,&nbsp;Houria Rezala,&nbsp;Lilya Boudriche,&nbsp;Lila Djouadi,&nbsp;Amel Douba,&nbsp;Amira Saidani,&nbsp;Salah Bacha,&nbsp;Meriem Fizir,&nbsp;Hussein Khalaf,&nbsp;Hocine Boutoumi","doi":"10.1007/s11144-026-03161-6","DOIUrl":"10.1007/s11144-026-03161-6","url":null,"abstract":"<div><p>In present study, a low-cost alginate assisted nickel oxide modified montmorillonite (Alg@NiO-Mt) or montmorillonite (Alg@Na-Mt) composite beads were prepared and utilized for the removal of malachite green (MG) cationic dye in batch mode adsorption. The prepared beads were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and thermogravimetric analysis/differential thermogravimetric analysis (TGA/DTG). Alg@NiO-Mt and Alg@Na-Mt beads achieved a complete removal of MG after 60 min and 90 min for a concentration of 100 mg L⁻¹ at an optimal mass of beads (1 g), natural pH of solution (3.8) and ambient temperature (25 ± 1 °C). Adsorption isotherm results showed that the Freundlich model fitted well for the adsorption of MG onto Alg@NiO-Mt and Alg@Na-Mt beads. Kinetic and thermodynamic studies also indicated that the MG adsorption were found to be well fitted with a pseudo-second order kinetic model, endothermic and spontaneous in nature. In addition, the Alg@NiO-Mt and Alg@Na-Mt beads showed excellent reusability for removal of MG after seven adsorption cycles. The adsorption of MG onto the beads is facilitated by multiple mechanisms, including electrostatic interactions, Yoshida H-bonding, dipole–dipole H-bonding, n–π interactions, and π–π interactions. Overall, the obtained results suggest that Alg@NiO-Mt and Alg@Na-Mt beads could be considered as a low-cost and eco-friendly adsorbent for MG removal from aquatic media.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 5","pages":"4131 - 4154"},"PeriodicalIF":2.1,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface modification of γ-Al2O3 with bimetallic Pt–Cu nanoparticles: role of Pt–Cu interaction in the catalytic oxidation of C3H8","authors":"Roberto Camposeco,&nbsp;Aldo. A. Rivera Cabrero,&nbsp;Jazmin. N. Castillo Cervantes,&nbsp;Rodolfo Zanella","doi":"10.1007/s11144-026-03178-x","DOIUrl":"10.1007/s11144-026-03178-x","url":null,"abstract":"<div><p>The incorporation of Cu into the Pt/Al₂O₃ catalyst significantly promoted its performance in the catalytic oxidation of C₃H₈. The bimetallic Pt-Cu catalyst supported on non-reducible γ-Al₂O₃ revealed strong Pt-Cu interaction, as well as the highest activity toward the total oxidation of C₃H₈. Its performance surpassed that of the monometallic Pt/Al₂O₃ and Cu/Al₂O₃ catalysts, showing a synergetic effect while maintaining excellent stability under both dry and wet reaction conditions. In-situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) revealed that Pt sites act as the main active centers, facilitating C₃H₈ adsorption due to the low-frequency bands associated with CO adsorption on low-coordination bridging Pt sites. Also, the adsorption of both C₃H₈ and O₂ was more favorable on the Pt–Cu bimetallic surface than on the individual Pt or Cu catalysts, presumably because of the lower coordination environment of the active sites. During the in-situ reaction, intermediates such as acetates and enolates were detected, which were rapidly oxidized to CO₂. Furthermore, strong Lewis acid sites and surface hydroxyl groups seemed to promote C–H bond cleavage at low temperatures.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 5","pages":"4359 - 4383"},"PeriodicalIF":2.1,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11144-026-03178-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Removal of Ponceau Red and Carmoisine Red from water using NaOH-activated olive stone carbon: kinetic, isotherm, thermodynamic, and mechanistic studies","authors":"Ahmed Salim,&nbsp;EL Mehdi EL Handaoui,&nbsp;Maha Adel,&nbsp;Hassan Nour,&nbsp;Abdeslam EL Bouari,&nbsp;Youssef Lghazi,&nbsp;Omar Tanane","doi":"10.1007/s11144-026-03185-y","DOIUrl":"10.1007/s11144-026-03185-y","url":null,"abstract":"<div><p>Olive Stone Activated Carbon (OSAC) sustained the removal of Ponceau Red (PR) and Carmoisine Red (CR) from water; OSAC was developed from chemical activation using sodium hydroxide (NaOH). The properties of OSAC were studied using several analytical techniques (BET, XRD, FTIR, SEM), all confirming that OSAC has a very porous structure with lots of functional groups that interacted with PR and CR, facilitating their removal. Studies were designed to assess the interactions between various factors (e.g., contact time; amount of OSAC used; initial concentration of dye; temperature) on dye removal. Results showed that dye removal followed the pseudo-second order kinetics model while equilibrium data were best-fitted to the Langmuir isotherm with an acceptable fit to the Temkin and Sips models as well. The maximum capacity for dye removal was 425.6 mg/g (PR) and 398.4 mg/g (CR). Adsorption was spontaneous and exothermic based on the thermodynamic data. There were a number of contributing mechanisms for dye removal including: electrostatic attraction (ion charges), π–π interactions; hydrogen bonding and intraparticle diffusion. Regeneration studies demonstrated that ~ 80% of dye removal efficiency was maintained after 5 cycles of dye removal using OSAC. There are low costs to produce 1 kg of OSAC (~ $4), making it an efficient and cost-effective adsorbent for treating dye contaminated wastewater.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 5","pages":"4429 - 4447"},"PeriodicalIF":2.1,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic hydrogenation performance of 2,2,4,4-tetramethyl-1,3-cyclobutanedione with Ru/activated carbon catalyst","authors":"Teng Zhan,&nbsp;Lei Ma,&nbsp;Suohe Yang,&nbsp;Guangxiang He,&nbsp;Longyu Wang,&nbsp;Haibo Jin","doi":"10.1007/s11144-026-03177-y","DOIUrl":"10.1007/s11144-026-03177-y","url":null,"abstract":"<div><p>In this study, a highly dispersed Ru/AC catalyst was prepared via an isovolumetric impregnation-chemical reduction method for the selective hydrogenation of 2,2,4,4-tetramethyl-1,3-cyclobutanedione (TMCB) to 2,2,4,4-tetramethyl-1,3-cyclobutanediol (CBDO). The catalytic performance was evaluated in a high-pressure reactor with a high substrate concentration of 9 wt% under industrially relevant conditions. The influence of key process parameters on hydrogenation efficiency was systematically investigated, and the catalyst’s stability over multiple reaction cycles was thoroughly assessed. Comprehensive characterization using XRD, BET, and TEM confirmed the atomic-level dispersion of Ru nanoparticles on the activated carbon support, with an average particle size of 0.4 nm. XPS and SEM analyses conducted before and after the reaction revealed that catalyst deactivation primarily stemmed from oxidation, leaching, and agglomeration of metallic Ru⁰ species, resulting in a progressive loss of active sites. The Ru/AC catalyst, under optimized reaction conditions (4 wt% Ru loading, 130 °C, 4 MPa H₂ pressure, and 1 h reaction time), afforded a CBDO yield of 99%, retaining a high yield of 90% even after 10 consecutive catalytic cycles.</p></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 5","pages":"4311 - 4331"},"PeriodicalIF":2.1,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Functional ligand-modified UiO-66 supported phosphomolybdenum heteropolyacid: an efficient and stable catalyst for oxidative desulfurization of dibenzothiophene","authors":"Shuang Gao,&nbsp;Yue Yu,&nbsp;Yunheng Li,&nbsp;Lu Han,&nbsp;Yakai Song,&nbsp;Xiaolu Chen","doi":"10.1007/s11144-026-03179-w","DOIUrl":"10.1007/s11144-026-03179-w","url":null,"abstract":"<div><p>A set of phosphomolybdic acid catalysts was synthesized by employing ligand-functionalized UiO-66 as the support. The structural properties of these catalysts were characterized via XRD, FT-IR, BET, TEM, and XPS techniques. To explore the influence of catalyst structure on its catalytic performance, the desulfurization of dibenzothiophene (DBT) from simulated fuel was utilized as a model reaction. Under optimized reaction parameters, the Co-POM-UiO-66-NO₂-F catalyst exhibited the highest DBT conversion efficiency, achieving 99.3%. After five consecutive desulfurization cycles, the catalyst retained a desulfurization activity of 91.8%. This excellent stability was attributed to the incorporation of the –F group, which enhanced the catalyst’s lipophilicity and hydrophobicity. Additionally, the incorporation of –F groups increased the content of the Mo active species (Mo⁵⁺), regulated the electronic structure of the catalyst, and optimized the microenvironment surrounding the active centers, which collectively contributed to the enhanced catalytic performance.</p><h3>Graphic abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":"139 5","pages":"4385 - 4398"},"PeriodicalIF":2.1,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}