Microporous and Mesoporous Materials最新文献

{"title":"Enhancing lung cancer treatment with metal–organic frameworks","authors":"Kornelia Hyjek ,&nbsp;Klaudia Dymek ,&nbsp;Grzegorz Kurowski ,&nbsp;Anna Boguszewska-Czubara ,&nbsp;Sylwia Wnorowska ,&nbsp;Anna Pajdak ,&nbsp;Łukasz Kuterasiński ,&nbsp;Witold Piskorz ,&nbsp;Anna Gancarczyk ,&nbsp;Marzena Iwaniszyn ,&nbsp;Arturo Cubi ,&nbsp;Maryna Khalavka ,&nbsp;Przemysław J. Jodłowski","doi":"10.1016/j.micromeso.2025.113665","DOIUrl":"10.1016/j.micromeso.2025.113665","url":null,"abstract":"<div><div>This study demonstrates the potential use of Zr-based metal–organic frameworks as carriers of gradual-release chemotherapeutics for lung cancer therapy. The therapeutic efficacy of 5-fluorouracil (5-FU) was compared to that of <span><math><mi>α</mi></math></span>-cyano-4-hydroxycinnamic acid (<span><math><mi>α</mi></math></span>-CHC). The model group of UiO-66 varied the number of defects and the presence of additional amino groups, and their 5-FU and <span><math><mi>α</mi></math></span>-CHC@UiO-66 composites were examined. Their performance in drug delivery was evaluated through dry powder inhalers. The drug release kinetics from prepared composites were studied in different media, including SBF and SLF fluids. The effects of the ionic environment, the presence of an amino group on the surface of the MOF structure, and the tendency of the introduced molecule to protonate were observed. The sorption mechanisms were corroborated with DFT modeling, showing the profound impact of the –NH₂ groups on the adsorption energetics. For UiO-66, the mutual orientation of the aromatic rings in the molecule and the MOF linker indicate the presence of the <span><math><mi>π</mi></math></span>-<span><math><mi>π</mi></math></span> stacking. The accumulated covalent bond order between the adsorbate molecule and the MOF framework also supports the nature of the adsorption. The in vitro and in vivo studies emphasize both the safety and efficacy of the presented therapy.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"395 ","pages":"Article 113665"},"PeriodicalIF":4.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144089564","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":"Porous silica materials with different pore structures as hemostatic dressing for acute blood loss","authors":"Yuhang Huang ,&nbsp;Pingwei Yang ,&nbsp;Shaokai Sun ,&nbsp;Liyun Mao ,&nbsp;Yunyun Zhou ,&nbsp;Ying Liu ,&nbsp;Juanjuan Peng ,&nbsp;Lingzhi Zhao","doi":"10.1016/j.micromeso.2025.113698","DOIUrl":"10.1016/j.micromeso.2025.113698","url":null,"abstract":"<div><div>Porous silica materials can serve as hemostats, offering a promising approach to promote the coagulation speed. The pore structure of porous silica is a critical property, which may influence the hemostatic effectiveness, though its exact role in the hemostasis process remains unclear. Given that the key structural parameters of porous silica, including pore size, surface area, and pore volume, exhibited strong interrelationships that significantly influence each other, we prepared porous silica with pore sizes ranging from 2.5 to 50 nm to study their hemostatic effects by both in vitro and in vivo assessments. The results demonstrated that the mesoporous material MCM-41 with small pore size (2.5 nm) and high specific surface area exhibited superior contact activation capability to the coagulation pathway. In contrast, the macroporous siliceous foam (MSF) with large pore size (50 nm) and large pore volume showed enhanced absorption of blood cells and proteins. The mesoporous SBA-15 with pore size of 5.3 nm displayed intermediate properties between the two materials. The in vivo experiments showed that among the three kinds of porous silica, the MCM-41 provided the highest pro-coagulant capacity in the tail transection rat model with minor bleeding, and the MSF performed the best hemostatic effect in the femoral artery injury rat model with spurting hemorrhage. Our study elucidates the role of pore structure of porous silica as hemostats, which may give hint to the design of such materials.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"395 ","pages":"Article 113698"},"PeriodicalIF":4.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115087","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":"A novel method of preparing high surface area porous gamma alumina granules from kaolin","authors":"Amit Kumar Yadav ,&nbsp;Binod Kumar ,&nbsp;Ravi Mohan Prasad ,&nbsp;Sunipa Bhattacharyya","doi":"10.1016/j.micromeso.2025.113697","DOIUrl":"10.1016/j.micromeso.2025.113697","url":null,"abstract":"<div><div>Tubular-shaped porous gamma alumina (γ-Al₂O₃) granules were synthesized from an unconventional source of kaolin powder using acid extraction followed by a modified oil-drop method. Different organic ingredients, including starch, sucrose, and spent tea leaf waste (STLW) and synthetic constituents like PVP and PEG, were utilized as pore-forming additives to make the granules porous and useful for adsorbent application. The resulting γ-Al₂O₃ granules measured approximately 6 mm long and 2 mm in diameter. The influence of various parameters on the granules' formation, morphology, and stability was systematically investigated. The γ-alumina phase formation was confirmed by powder X-ray diffraction (XRD) study and Fourier-transform infrared spectroscopic analysis (FTIR). Surface morphology and specific surface area of the granules were studied using field emission scanning electron microscopy (FESEM) and N₂ adsorption-desorption analysis. The porous structure of the granules was validated through Barrett-Joyner-Halenda (BJH) pore size distribution analysis and FESEM imaging. The γ-alumina granules with starch as a pore-forming additive demonstrated the highest specific surface area. The unimodal distribution of pores in the mesoporous range is standard for all the batches prepared using different pore former, indicating their potential suitability for adsorption applications.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"395 ","pages":"Article 113697"},"PeriodicalIF":4.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125310","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":"Engineering the size of amine-functionalized dendritic mesoporous silica nanospheres for enhanced formic acid dehydrogenation","authors":"Youcheng Feng ,&nbsp;Chunhui Zhou ,&nbsp;Nan Zhang ,&nbsp;Hao Chai ,&nbsp;Rongmei Zhang ,&nbsp;Jinsong Hu ,&nbsp;Zhentao Liu ,&nbsp;Xilong Wang","doi":"10.1016/j.micromeso.2025.113699","DOIUrl":"10.1016/j.micromeso.2025.113699","url":null,"abstract":"<div><div>In this paper, by regulating the molar ratios of cetyltrimethylammonium bromide (CTAB)/sodium salicylate (NaSal) (0.25, 0.5, 1.0, 2.0, 3.0), a series of dendritic mesoporous silica nanospheres (DMSNs) supports with different particle sizes (denoted as DMSNs-x, and x means the different molar ratios of CTAB/NaSal) could be prepared accordingly. Then, Pd nanoparticles (NPs) supported on the amine-functionalized DMSNs-x (Pd/DMSNs-x-NH₂) have been assembled by the surface amine-functionalization and chemical co-reduction strategy successfully. The different particle sizes of the supports for the resulting Pd/DMSNs-x-NH₂ catalysts greatly influence the formic acid dehydrogenation (FAD) activities since they could affect active Pd particle size and mass transfer of the corresponding catalytic reactions. The optimized Pd/DMSNs-1.0-NH₂ catalyst reveals a remarkable catalytic activity of hydrogen (H₂) generation over FAD, giving an initial turnover frequency (TOF) value of 473.8 h⁻¹, and 100 % FA conversion and H₂ selectivity with the additive of sodium formate (SF) at 303 K. The distinct catalytic performance of Pd/DMSNs-1.0-NH₂ could be attributed to the dendritic center-radial 3D pore channels with the high surface area, the notable pore volume, and the relatively concentrative pore size distribution for the modulated mass transfer, ultrasmall size (1.6 nm) with high dispersion of Pd NPs as the catalytically active sites, and the suitable metal-support interaction (MSI) between the introduced Pd NPs and DMSNs-1.0-NH₂ support. This work offers new insight into the regulation of the supports over silica-supported Pd-based catalysts for enhanced FAD application.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"395 ","pages":"Article 113699"},"PeriodicalIF":4.8,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084712","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":"Hydrophobic zeolites as efficient adsorbents for removing chloroform in drinking water","authors":"Seunghyuck Chi ,&nbsp;Yaejun Baik ,&nbsp;Chanyoung Oh ,&nbsp;Jeong-Chul Kim ,&nbsp;Minkee Choi","doi":"10.1016/j.micromeso.2025.113690","DOIUrl":"10.1016/j.micromeso.2025.113690","url":null,"abstract":"<div><div>Chloroform is one of the most prevalent disinfection byproducts found in drinking water, posing significant risks to human health and aquatic ecosystems due to its carcinogenic properties. Since chloroform is present at very low concentrations (tens to hundreds of ppb), it is crucial to develop effective adsorbents capable of strong interactions with chloroform even in a water-dominant environment. In this study, we investigated the effects of different chemical compositions (Si/Al ratios), silanol defects, and pore topologies (CHA, MFI, and BEA) of zeolites on their chloroform adsorption behavior. The results showed that zeolites with higher Si/Al ratios and fewer silanol defects exhibit greater surface hydrophobicity, leading to effective chloroform uptake properties in aqueous solutions. Adsorption experiments using hydrophobic pure-silica zeolites with different pore topologies revealed that a micropore aperture size of ≥10-membered rings (MFI and BEA) is required for efficient chloroform adsorption, as small-pore zeolites with 8-membered ring apertures (CHA) impose significant diffusion limitations for chloroform. The hydrophobic zeolites demonstrated excellent reusability compared to conventionally used activated carbon and also showed good adsorption performance for other trihalomethanes. These findings highlight the potential of hydrophobic zeolites as efficient adsorbents for removing extremely low concentrations of toxic trihalomethanes from drinking water.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"395 ","pages":"Article 113690"},"PeriodicalIF":4.8,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099439","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":"Ion-exchanged zeolite as a hybrid system: Fluoxetine removal and antibacterial activity","authors":"Gabriela Maria Matos Demiti ,&nbsp;Natália Cândido Homem ,&nbsp;Helena Prado Felgueiras ,&nbsp;Anna Carla Ribeiro ,&nbsp;Benício Alves de Abreu Filho ,&nbsp;Mara Heloisa Neves Olsen Scaliante ,&nbsp;Miguel Torres Rodríguez ,&nbsp;Rosângela Bergamasco","doi":"10.1016/j.micromeso.2025.113689","DOIUrl":"10.1016/j.micromeso.2025.113689","url":null,"abstract":"<div><div>The increasing consumption of antidepressants, aggravated by the coronavirus disease 2019 (COVID-19) pandemic, has resulted in the detection of compounds such as fluoxetine in drinking water. This substance is highly toxic to aquatic organisms and has the potential for bioaccumulation in aquatic environments. This study evaluated the effects of modifying natural zeolites through ion exchange to enhance their adsorption capacity and assess their multifunctional potential. Natural zeolites were modified by immersion in 0.1 mol L⁻¹ solutions of AgNO₃, MgCl₂, FeSO₄, and FeCl₃, and their performance in fluoxetine removal was systematically compared. The samples were characterized by Fourier-transform infrared spectroscopy, X-ray diffraction, X-ray fluorescence spectroscopy, thermogravimetric analysis, point of zero charge, scanning electron microscopy, and transmission electron microscopy. Adsorption experiments were conducted with an adsorbent concentration of 1 g L⁻¹ and an initial fluoxetine concentration of 20 mg L⁻¹. The silver-modified zeolite (ZN-AgNO₃), which achieved the best performance among the tested materials, was selected for further testing. The pseudo-second-order and Langmuir models provided the best kinetic and isotherm fits, respectively, with a maximum adsorption capacity of 36.36 mg g⁻¹, achieved at 308 K and an equilibrium time of 21 h. Desorption experiments showed that the adsorbent maintained recovery rates above 50 % over four cycles of reuse. The main adsorption mechanisms involved ion exchange, electrostatic interactions, and hydrogen bonding, in addition to the affinity of silver with the functional groups of fluoxetine. The adsorbent also inhibited the growth of <em>Escherichia coli</em>. Overall, ZN-AgNO₃ demonstrated potential for fluoxetine removal and antibacterial activity.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"396 ","pages":"Article 113689"},"PeriodicalIF":4.8,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144203777","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":"Phosphate removal from aqueous solution using ytterbium oxide supported mesoporous silicas (SBA-15, KIT-6 & MCM-41)","authors":"Mozhdeh Gholami,&nbsp;James Tardio","doi":"10.1016/j.micromeso.2025.113681","DOIUrl":"10.1016/j.micromeso.2025.113681","url":null,"abstract":"<div><div>In this study, a series of ytterbium supported mesoporous silicas, SBA-15, KIT-6 and MCM-41 (containing different amounts of Yb) were studied for phosphate removal from aqueous solution. The prepared materials were characterized by X-ray diffraction, N2 adsorption/desorption (BET), HRTEM and XPS. All of the materials prepared were found to possess an ordered hexagonal mesoporous structure. The best performing materials under the conditions used (in terms of maximum adsorption capacity) for each of the silica supports were 0.3 Yb SBA-15, 0.1 Yb KIT-6, and 0.1 Yb MCM-41 which had maximum adsorption capacities of 20.1 mg P/g, 20.9 mg P/g and 20.5 mg P/g respectively. The aforementioned best performing materials were found to have slightly higher maximum adsorption capacities at lower pH (pH 3 and 5, compared to pH 6) whilst the coexistence of chloride, sulphate and nitrate, were found to have no significant effect on phosphate adsorption. Bicarbonate ion was found to have a significant negative effect on adsorption capacity – this however was most likely due to this ion increasing the solution pH which in turn causes reduced adsorption. It was found that adsorbed phosphate could be readily desorbed from the materials studied using HNO₃ (5 %) at room temperature. Reuse tests showed a slightly reduced adsorption capacity for the materials for which regeneration studies were conducted.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"395 ","pages":"Article 113681"},"PeriodicalIF":4.8,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105885","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":"Hierarchically structured nanoporous organic polymers as a rapid electrochemical platform for monitoring trace heavy metal ions","authors":"Dongyang Chen ,&nbsp;Zihao Wang ,&nbsp;Yufei Liu ,&nbsp;Shuai Gu ,&nbsp;Chenxiang Ai ,&nbsp;Chunyue Pan ,&nbsp;Guipeng Yu","doi":"10.1016/j.micromeso.2025.113685","DOIUrl":"10.1016/j.micromeso.2025.113685","url":null,"abstract":"<div><div>Rapid electrochemical monitoring and detection of toxic heavy metal ions using chemically modified carbon paste electrodes (CPEs) is of great importance, but the development of chemically stable and porous CPE substrates with unique sensing properties remains challenging. Here, we synthesized nine low-cost nanoporous organic polymer (NOP) matrices under mild CPE conditions and developed highly sensitive graphite powder (GP)@NOP composite electrodes for sensing of trace heavy metal ions. These NOP substrates have great potential for electrochemical sensing due to their large surface area, layered porosity and excellent stability. The electrochemical properties, dominated by the pore structures of the NOPs, are simply turned by regulating the nature of the building blocks and crosslinkers. The micropores facilitate highly sensitive and selective detection and the mesopores benefit mass transfer. Using GP@NOP complex electrodes, the concentrations of the analyte show linear relationship with the oxidation current peak values over a concentration range of 0.0010–0.012 μg L⁻¹ with high correlation coefficients up to 0.996. Super-high sensitivity with a low detection limit (0.0003 μg L⁻¹) and excellent reproducibility (relative standard deviation ≤ 7.4 %) is demonstrated, superior to the pristine GP electrode and most known electrodes. This study expands a novel application for NOPs and an alternative straightforward approach for the rapid and reliable detection of heavy metal ions.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"395 ","pages":"Article 113685"},"PeriodicalIF":4.8,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144089506","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":"Fe-Cu bimetallic oxide encapsulated in ZSM-5 for efficient heterogeneous Fenton-like degradation of methylene blue","authors":"Jiaze Chen ,&nbsp;Huijie Xie ,&nbsp;Yusen Chen ,&nbsp;Dong Guo ,&nbsp;Binjie Li ,&nbsp;Xuanxuan Sun ,&nbsp;Volodymyr Turkevych ,&nbsp;Caixia Li ,&nbsp;Dehong Chen ,&nbsp;Lei Wang ,&nbsp;Bin Li","doi":"10.1016/j.micromeso.2025.113688","DOIUrl":"10.1016/j.micromeso.2025.113688","url":null,"abstract":"<div><div>Fenton-like degradation based on iron catalyst have been developed to remove organic pollutants from wastewater. However, iron-based catalysts still face challenges of poor accessibility and stability of active sites. Here, we report a facile and green method for the preparation of Fe_xCu_(1-x)@HZSM-5 catalyst using ethylenediamine as an organic ligand to stabilize metal species via a combination of solid-state grinding and steam-assisted crystallization methods without organic templates. Due to the confinement of zeolite ZSM-5 framework and synergistic effect of Fe and Cu bimetals, the optimized Fe_0.8Cu_0.2@HZSM-5 catalyst exhibits excellent activity and reusability in the Fenton-like degradation of methylene blue at the neutral condition. Our strategy for fabricating bimetal@zeolite can bring about new thoughts for the preparation of iron-based catalyst with high efficiency for Fenton-like degradation.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"395 ","pages":"Article 113688"},"PeriodicalIF":4.8,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115896","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":"Efficient preparation of CuCe-SAPO-34 catalyst and its NH3-SCR performance","authors":"Bohui Cai ,&nbsp;Junyan Liu ,&nbsp;Zijing An,&nbsp;Yue Wang,&nbsp;Yan Du,&nbsp;Chengyang Yin","doi":"10.1016/j.micromeso.2025.113684","DOIUrl":"10.1016/j.micromeso.2025.113684","url":null,"abstract":"<div><div>Excessive levels of NO_x in the atmosphere can cause various environmental issues, including acid rain, ozone layer depletion, and photochemical smog—conditions that pose serious risks to human health. As a result, reducing NO_x emissions from vehicle exhaust is an urgent global challenge that demands attention. Ammonia selective catalytic reduction (NH₃-SCR) technology is widely used for exhaust gas treatment because of its high denitrification efficiency and stability. The effectiveness of NH₃-SCR largely depends on the catalyst employed. Among the available catalysts, Cu-SSZ-13 zeolites have shown exceptional promise due to their high NO_x conversion rates, N₂ selectivity, and hydrothermal stability. However, the high cost of the templates used in Cu-SSZ-13 makes Cu-SAPO-34 which has the same CHA structure with Cu-SSZ-13 a more economically viable option for commercial use. To further improve both the denitrification performance and hydrothermal stability of Cu-SAPO-34 catalysts, this study introduces Cerium, a rare-earth metal, to modify the Cu-SAPO-34 catalyst for NH₃-SCR applications. The experimental results show that the incorporation of Ce significantly enhances the catalytic performance, particularly at low temperatures, while also improving the low-temperature hydrothermal stability of CuCe-SAPO-34. Characterization analysis reveals that the introduction of Ce increases the number of acid sites and facilitates the redox cycling process, both of which contribute to the enhanced catalytic activity. These findings underscore the crucial role of Ce in optimizing the performance of CuCe-SAPO-34 catalysts, making them a promising candidate for more efficient and cost-effective NO_x reduction in vehicle exhaust treatment.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"394 ","pages":"Article 113684"},"PeriodicalIF":4.8,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941124","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}