Microporous and Mesoporous Materials最新文献

{"title":"Highly controllable CO2 capture performance under varied humidity conditions by finely tuned metal and organic ligand compositions of DMOF adsorbents","authors":"Xinyu Chen,&nbsp;Jinhai Leng,&nbsp;Fengying Ma,&nbsp;Jianqing Wu,&nbsp;Yi Jin,&nbsp;Miao Yu,&nbsp;Haomin Huang,&nbsp;Shanshan Shang,&nbsp;Daiqi Ye","doi":"10.1016/j.micromeso.2025.113559","DOIUrl":"10.1016/j.micromeso.2025.113559","url":null,"abstract":"<div><div>Excessive CO₂ emissions significantly contribute to global warming, promoting the advancement of carbon capture and storage (CCS) technologies. Metal-organic frameworks (MOFs) are promising candidates for selective CO₂ adsorption; however, their effectiveness is often compromised in humid environments, such as flue gas streams. To overcome this limitation, this study synthesizes six isostructural DABCO-pillared MOFs (DMOFs) by finely tuning metal nodes (from Zn to Ni) and integrating methyl (-CH₃) functional groups on the organic ligand to enhance CO₂ adsorption performance, especially under humid conditions. Single gas adsorption isotherms reveal that the Ni-TM DMOF achieves the highest CO₂ adsorption capacity of 5.0 mmol g⁻¹ and maintains 100 % regenerability after five cycles. Binary CO₂/N₂ dynamic breakthrough experiments further demonstrate that the Ni-TM DMOF excels in both CO₂ uptake and CO₂/N₂ separation performance under both dry and humid conditions (80 % relative humidity). Mechanistic insights from <em>in situ</em> diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and density functional theory (DFT) calculations elucidate the molecular interactions between CO₂ and the DMOF structure, revealing that CO₂ adsorption predominantly occurs <em>via</em> physisorption, enhanced by C-H·O interaction from the -CH₃ groups. This work provides a strategic approach for enhancing the stability and efficiency of MOFs in industrial CO₂ sequestration applications.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"389 ","pages":"Article 113559"},"PeriodicalIF":4.8,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512206","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":"Ti-grafting functionalization on alkali-etched nanozeolites to enhance their catalytic performance toward oxidation desulfurization of fuels","authors":"Yichen Feng ,&nbsp;Linghao Li ,&nbsp;Jian Huang ,&nbsp;Wei Wang ,&nbsp;Bowen Lu ,&nbsp;Siyu Yang ,&nbsp;Haiwei Xu ,&nbsp;Ying Shi ,&nbsp;Zile Hua","doi":"10.1016/j.micromeso.2025.113556","DOIUrl":"10.1016/j.micromeso.2025.113556","url":null,"abstract":"<div><div>Using silicalite-1 and TS-1 nanozeolites as precursors, a new combination process consisting of sequential alkali-etching and Ti-grafting treatment has been designed for preparation of hierarchically structured titanosilicate catalysts. The alkali-etching process creates abundant mesopores and Si-OH groups in the nanozeolite precursors, effectively increasing the titanium loadings and accelerating the mass transfer during the reactions. Benefiting from the developed micro/mesoporous structures, the adjustable Ti loadings and the intrinsic hydrophobicity of precursor nanozeolites, the resultant catalysts demonstrate superior performance toward the catalytic oxidation desulfurization (ODS) of fuels, i.e. in 3 h, the complete conversion of thiophene (Th), benzothiophene (BT) and dibenzothiophene (DBT) which are three typical refractory sulfur compounds with diverse reducibility and molecule sizes in fuels.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"389 ","pages":"Article 113556"},"PeriodicalIF":4.8,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512205","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":"Corrigendum to “Manipulating pore structures of SSZ-13 zeolite membranes via hydrocracking activation for superior H2/CO2 separation” [Micropor. Mesopor. Mater. 387 (2025) 113518]","authors":"Weibo Chen,&nbsp;Feng Ye,&nbsp;Shuanshi Fan,&nbsp;Yanhong Wang,&nbsp;Xuemei Lang,&nbsp;Zijian Zhang,&nbsp;Gang Li","doi":"10.1016/j.micromeso.2025.113551","DOIUrl":"10.1016/j.micromeso.2025.113551","url":null,"abstract":"","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"388 ","pages":"Article 113551"},"PeriodicalIF":4.8,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526771","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":"Investigating the role of zeolite supports in Ni-based catalysts for CO2-methanation using in situ/operando XAS–GC-MS","authors":"Waranya Obrom ,&nbsp;Worapol Yingyuen ,&nbsp;Tatchapol Nanmong ,&nbsp;Krittanun Deekamwong ,&nbsp;Pimrapus Tawachkultanadilok ,&nbsp;Jatuporn Wittayakun ,&nbsp;Sanchai Prayoonpokarach ,&nbsp;Yingyot Poo-arporn ,&nbsp;Karin Föttinger ,&nbsp;Jean-Paul Desaulniers ,&nbsp;Sirinuch Loiha","doi":"10.1016/j.micromeso.2025.113548","DOIUrl":"10.1016/j.micromeso.2025.113548","url":null,"abstract":"<div><div>Nickel (Ni) is regarded as the most effective non-noble metal catalyst for CO₂ methanation. Its performance is strongly influenced by support material and Ni reducibility. This study investigates the impact of zeolite types (ANA, LTA, and ZSM-5) on the reducibility and catalytic performance of 5 wt% Ni catalysts, compared with SiO₂. Reducibility, measured via in situ X-ray absorption spectroscopy (XAS) from 100 to 450 °C, followed the order: 5Ni/ZSM-5 &gt; 5Ni/ANA &gt; 5Ni/LTA &gt; 5Ni/SiO₂. Catalytic testing in a fixed-bed flow reactor revealed the highest CO₂ conversion at 400 °C, following the order: 5Ni/LTA &gt; 5Ni/ZSM-5 &gt; 5Ni/ANA &gt; 5Ni/SiO₂. Zeolite-supported catalysts achieved significantly higher CH₄ selectivity compared to 5Ni/SiO₂, with the trend: 5Ni/LTA &gt; 5Ni/ZSM-5 &gt; 5Ni/ANA ≫ 5Ni/SiO₂. Comprehensive characterization using X-ray diffraction, N₂ adsorption-desorption, and X-ray photoelectron spectroscopy was conducted to analyze catalyst properties. The CO₂ methanation mechanism was deduced using data from in situ XAS-MS. These findings demonstrate that zeolite-supported Ni catalysts, particularly 5Ni/LTA, exhibit superior reducibility and catalytic performance, advancing the development of efficient materials for CO₂ conversion.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"390 ","pages":"Article 113548"},"PeriodicalIF":4.8,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579508","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":"Mono- and bimetallic catalysts for the steam reforming of glycerol based on (Cox,Ni1-x)3Si2O5(OH)4 phyllosilicate nanoscrolls","authors":"E.K. Khrapova,&nbsp;Sh. Omarov,&nbsp;A.A. Ivanova,&nbsp;D.A. Kirilenko,&nbsp;Yu. Kukushkina,&nbsp;A.A. Krasilin","doi":"10.1016/j.micromeso.2025.113552","DOIUrl":"10.1016/j.micromeso.2025.113552","url":null,"abstract":"<div><div>Glycerol steam reforming is one of the potential method for hydrogen production is. Nanocomposites based on transition metal phyllosilicates may serve as promising candidates for the role of catalysts in this process. In the present work, Ni- Co-phyllosilicates with a pecoraite-like structure were studied. For the first time, a monometallic Co-catalyst (<em>x</em> = 1) and a bimetallic Ni-Co-catalyst (<em>x</em> = 0.4) were obtained and compared in a catalytic reaction of steam reforming of glycerol with a monometallic Ni-catalyst (<em>x</em> = 0) based on a nanotubular phyllosilicate with the general stoichiometric formula (Co_<em>x</em>,Ni_1-<em>x</em>)₃Si₂O₅(OH)₄. A series of physicochemical methods revealed differences in crystalline and porous structure, morphology of phyllosilicates, stability of porosity during reduction, and size and localization of metal nanoparticles. The catalysts were metal particles with dimensions of 9.6 ± 0.1 nm (<em>x</em> = 0), 11.2 ± 0.1 nm (<em>x</em> = 0.4), and 18.8 ± 0.4 nm (<em>x</em> = 1), dispersed in a phyllosilicate matrix as the support. For the sample with <em>x</em> = 0.4, the metal particles were a homogeneous NiCo alloy. This sample demonstrated a synergistic effect, which was manifested in an increase in glycerol conversion and hydrogen yield over time-on-stream at 600 °C as well as in higher stability and a lower tendency to coking in compared to monometallic samples. The identified features of the studied systems (increase in the homogeneity of the NiCo alloy during the test, oxidation and blocking of Co nanoparticles inside the phyllosilicate channels) made it possible to explain the observed differences in the catalytic behavior in the steam conversion of glycerol.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"389 ","pages":"Article 113552"},"PeriodicalIF":4.8,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488651","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 Z-scheme Ag/AgBr/Bi4O5Br2 heterojunction with rich oxygen vacancy for enhanced photocatalytic degradation of formaldehyde","authors":"Qinghai Zhang ,&nbsp;Weiweng Wang ,&nbsp;Yunlong Qu ,&nbsp;Mengqi Bian ,&nbsp;Rui Liu ,&nbsp;Guanghui Chen ,&nbsp;Chaojie Li ,&nbsp;Jihai Duan","doi":"10.1016/j.micromeso.2025.113555","DOIUrl":"10.1016/j.micromeso.2025.113555","url":null,"abstract":"<div><div>Fabrication of a plasma-based Z-scheme heterojunction can significantly accelerate the charge separation and broaden the light response range. Herein, a series of Ag/AgBr/Bi₄O₅Br₂-<em>x</em>% (<em>abbr</em>. A/AB/BOB-<em>x</em>%; <em>x</em> = 5, 10, 30 and 50) Z-scheme heterojunctions containing rich oxygen vacancies (Ovs) were successfully synthesized via the alcoholysis method, followed by ion-exchange and photoreduction method to enhance photocatalytic formaldehyde degradation. The formaldehyde degradation efficiency of A/AB/BOB-10 % composite reached 94.3 % at 3 h of light irradiation, which was 1.6, 1.2 and 2.3 times higher than that of BiOBr (60.1 %), BOB (78.3 %) and Ag/AgBr (41.2 %), respectively. The enhanced photodegradation activity was ascribed to the synergistic effects arising from the formation of Z-scheme heterojunction, the surface plasmon resonance (SPR) effect induced by Ag nanoparticles (Ag NPs) and the rich oxygen vacancies. Moreover, the cycle experiments demonstrated that A/AB/BOB-10 % composite had favorable stability and repeatability, achieving a degradation efficiency of 81.2 %. The electron spin resonance (ESR) and radical capturing tests demonstrated that the active species involved in photocatalytic degradation of formaldehyde include h⁺, ·OH and ·O₂⁻, with h⁺ playing a predominant role. Additionally, ion chromatography revealed that formic acid (HCOOH) was an intermediate during the removal process of formaldehyde. Finally, the Z-scheme charge transfer mechanism bridged by Ag NPs for the photocatalytic degradation of formaldehyde was proposed based on the ESR tests and an analysis of energy band structure. The current study presents a promising approach for the fabrication of high-efficiency plasma-based Z-scheme heterojunction photocatalysts for formaldehyde degradation.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"389 ","pages":"Article 113555"},"PeriodicalIF":4.8,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474555","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":"Amorphousness matters: Its role on nonpolar gas diffusion at the nanoscale","authors":"Solana M. Di Pino,&nbsp;Oscar Churio,&nbsp;Ezequiel de la Llave,&nbsp;Verónica M. Sánchez","doi":"10.1016/j.micromeso.2025.113540","DOIUrl":"10.1016/j.micromeso.2025.113540","url":null,"abstract":"<div><div>Amorphous carbon materials (ACM) produced using biomass waste feedstocks, offers an affordable, large-scale, and environmentally friendly production method. Their inherent porosity critically impacts gas diffusion and various applications, including gas separation, purification, and catalysis. This work determines, through molecular dynamics simulations, the effect of amorphicity on the diffusion of pure oxygen and methane, their 50% mixture and a 50% mixture of methane and carbon dioxide. For pure systems, we compare ACM with pores of similar size and regular shapes, such as slit pores and carbon nanotubes, with and without surface roughness. From the analysis of diffusion trajectories we find that molecular mobility decreases as the surface structural constrictions increase, configuring a more intricate molecular path for the gas to surface-diffuse. Specifically, constrictions imposed by the carbon surface structure increase in the next order: smooth surfaces, rough CNTs and ACMs. For ACM with a pore diameter of 1.5 nm, gas diffusion decreased by up to 95%. Notably, oxygen was trapped in surface defects (“pockets”) for both pure oxygen and its mixture with methane. The effects of pressure and temperature on the dynamic behavior of mixtures were also explored. For the 50% mixture of carbon dioxide and methane, we observed that in ACM with the smallest pore size, the relative diffusion is reduced by around 50% compared to bulk. Our findings suggest that amorphous materials could be preferred for devices that require high selectivity between gas mixtures due to their specific porous structure.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"388 ","pages":"Article 113540"},"PeriodicalIF":4.8,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471596","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":"Adsorption behavior of low-concentration nitrous oxide on natural mordenite zeolite","authors":"Saeko Yamaguchi ,&nbsp;Peidong Hu ,&nbsp;Hanlong Ya ,&nbsp;Peipei Xiao ,&nbsp;Ayako Nakata ,&nbsp;Tsuyoshi Miyazaki ,&nbsp;Yoshitada Morikawa ,&nbsp;Junko N. Kondo ,&nbsp;Kotaro Tange ,&nbsp;Kenichi Tonokura ,&nbsp;Masanori Takemoto ,&nbsp;Yasuo Yonezawa ,&nbsp;Toshiyuki Yokoi ,&nbsp;Kenta Iyoki ,&nbsp;Tatsuya Okubo ,&nbsp;Toru Wakihara","doi":"10.1016/j.micromeso.2025.113550","DOIUrl":"10.1016/j.micromeso.2025.113550","url":null,"abstract":"<div><div>Nitrous oxide (N₂O), the third most important greenhouse gas, is discharged from various anthropogenic sources and causes severe environmental problems. Herein, the natural mordenite zeolite is demonstrated to be an effective adsorbent to capture low-concentration N₂O (below 30 ppm). An adsorption capacity of 0.076 mmol g⁻¹ can be achieved at −7 °C with 1 ppm N₂O in the dynamic adsorption test, 6.3 times as high as that at 25 °C. The density functional theory calculations reveal that the Ca-exchanged MOR-type zeolite has stronger interactions with N₂O compared with the Na-exchanged one. However, as evidenced by the isosteric adsorption enthalpy analysis and the Fourier transform infrared spectroscopy, the natural mordenite zeolite with both Na⁺ and Ca²⁺, as well as the synthesized analogue, demonstrates stronger and distinctive interactions with trace N₂O in comparison to the MOR-type zeolites with single kind of extra-framework cation. These results provide experimental and theoretical foundations for the establishment of efficient N₂O removal system using well designed zeolite-based adsorbents under proper operating conditions.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"388 ","pages":"Article 113550"},"PeriodicalIF":4.8,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445734","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":"New insights into the fluorine-alkali treatment and its application to ZSM-11 as a superior catalyst for chloromethane to propylene","authors":"Ting Xu,&nbsp;Shiyu Cen,&nbsp;Qinghu Tang,&nbsp;Pengling Zhang,&nbsp;Qianyi Zhao,&nbsp;Jie Zhang","doi":"10.1016/j.micromeso.2025.113547","DOIUrl":"10.1016/j.micromeso.2025.113547","url":null,"abstract":"","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"388 ","pages":"Article 113547"},"PeriodicalIF":4.8,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453174","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":"One-step synthesis of aluminum dross-derived MIL-53(Al) as an aniline adsorbent","authors":"Ryota Yamane ,&nbsp;Yuki Masuda ,&nbsp;Satoshi Kobayashi ,&nbsp;Hiroki Konno","doi":"10.1016/j.micromeso.2025.113549","DOIUrl":"10.1016/j.micromeso.2025.113549","url":null,"abstract":"<div><div>Aluminum dross, an industrial waste product generated during the smelting and recycling of aluminum, is used in various industries; however, its application is limited. Metal–organic frameworks (MOFs), next-generation porous materials comprising metals and organic likers, offer tunable properties, including pore structure (shape and size), hydrophobicity, hydrophilicity, and stability, making them versatile for various applications. This study successfully achieved the one-step synthesis of MIL-53(Al), an MOF, using aluminum dross as a starting material for the first time. The dross-derived MIL-53(Al) exhibited high crystallinity, similar to that of conventional MIL-53(Al). It was further evaluated as an adsorbent for aniline, a compound widely used in chemical and pharmaceutical industries but harmful to human health and ecosystems. Liquid-phase adsorption experiments demonstrated that dross-derived MIL-53(Al) achieved an adsorption capacity similar to that of conventional MIL-53(Al), primarily owing to π‒π and hydrogen bonding interactions with aniline. The adsorption isotherm of dross-derived MIL-53(Al) conformed to the Langmuir model, indicating that the primary adsorption sites for aniline were its micropores. Furthermore, this MIL-53(Al) retained its adsorption capacity after up to four regeneration cycles using calcination. Thus, this study successfully synthesized MIL-53(Al) using aluminum dross as a precursor and demonstrated its potential effectiveness as a water purification agent.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"388 ","pages":"Article 113549"},"PeriodicalIF":4.8,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143422317","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}