Journal of Porous Materials最新文献_第7页

Preparation of open and hierarchical porous TS-1 and its catalytic performance in phenol hydroxylation 开放和分层多孔 TS-1 的制备及其在苯酚羟基化中的催化性能

IF 2.5 4区材料科学

Journal of Porous Materials Pub Date : 2024-05-03 DOI: 10.1007/s10934-024-01623-7

Deng-Gao Huang, Shi-Lin Hu, Zi-Sheng Chao, Dong Wu, Hao Ruan

{"title":"Preparation of open and hierarchical porous TS-1 and its catalytic performance in phenol hydroxylation","authors":"Deng-Gao Huang, Shi-Lin Hu, Zi-Sheng Chao, Dong Wu, Hao Ruan","doi":"10.1007/s10934-024-01623-7","DOIUrl":"10.1007/s10934-024-01623-7","url":null,"abstract":"<div>The effect of post-treatment of TS-1 zeolite by tetrapropyl ammonium hydroxide aqueous solution under hydrothermal condition was studied in this work. The characterizations of structure, morphology and composition demonstrated that an open and hierarchical porous structure was generated in TS-1 zeolite after the post-treatment. With increasing the alkalinity of TPAOH solution, the hierarchical porosity and hydrophobicity increased and the framework Ti content decreased in the post-treated TS-1 zeolite. Both the pristine and post-treated TS-1 zeolites were employed as the catalysts for the reaction of phenol hydroxylation. It was found that the post-treated TS-1 zeolite possessed a higher catalytic performance than the pristine TS-1 zeolite. The larger the alkalinity of the post-treatment solution was, the higher the catalytic performance of the post-treated TS-1 zeolite was; however, a too high alkalinity of the post-treatment solution also led to the decline in the catalytic performance. This could be a result of the combined influences of the hierarchical porosity, hydrophobicity and framework Ti content on the catalytic performance. The higher levels of hierarchical porosity and hydrophobicity promoted but the lower level of framework Ti content inhibited the catalytic performance of TS-1 zeolite. Accordingly, the controlling to the alkalinity of TPAOH solution for the post-treatment was very important in respect of the catalytic performance of TS-1 zeolite.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"31 5","pages":"1697 - 1710"},"PeriodicalIF":2.5,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A spherical AlPO4 supported WO3 catalyst for reductive etherification of furfural to Euro 95 standard gasoline fuel additives 一种球形磷酸铝（AlPO4）支撑的 WO3 催化剂，用于将糠醛还原醚化为符合欧洲 95 号标准的汽油燃料添加剂

IF 2.5 4区材料科学

Journal of Porous Materials Pub Date : 2024-05-02 DOI: 10.1007/s10934-024-01599-4

S. Manimaran, A. Pandurangan

{"title":"A spherical AlPO4 supported WO3 catalyst for reductive etherification of furfural to Euro 95 standard gasoline fuel additives","authors":"S. Manimaran, A. Pandurangan","doi":"10.1007/s10934-024-01599-4","DOIUrl":"10.1007/s10934-024-01599-4","url":null,"abstract":"<div>Spherical AlPO4 supported WO3 catalysts were synthesized and characterized by XRD, N2 sorption isotherm, SEM, TEM and NH3-TPD, and used as a catalyst for the production of Euro 95 standard gasoline fuel additives from biomass-derived furfural via reductive etherification. Compared with the AlPO4 catalyst, the surface acidity increased after the impregnation of tungsten oxide. The activity and stability of the catalysts also improved with the impregnation of tungsten oxide on AlPO4. However, the existing catalytic system cannot provide high conversion to furfural and selectivity to ether due to the formation of side reactions. To optimize the reaction conditions, the effect of temperature, catalyst amount, furfural/isopropanol molar ratio, and choice of hydrogen donor were studied. Under these optimized conditions, a high conversion of furfural (92%) and a yield of isopropyl furfuryl ether (IPFE) (83%) were obtained with the byproducts of furfuryl alcohol and acetal. The WO3/AlPO4 catalyst also achieved a high yield of ether with various aldehydes and alcohols via reductive etherification.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"31 5","pages":"1683 - 1695"},"PeriodicalIF":2.5,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140833942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multidimensional TiO2 photocatalysts for the degradation of organic dyes in wastewater treatment 用于废水处理中有机染料降解的多维 TiO2 光催化剂

IF 2.5 4区材料科学

Journal of Porous Materials Pub Date : 2024-05-01 DOI: 10.1007/s10934-024-01619-3

Wanchen Xie, Gonggang Liu, Yuan Liu, Yuanjuan Bai, Yuanyuan Liao, Ting Li, Chongqing Wang, Shanshan Chang, Jinbo Hu

{"title":"Multidimensional TiO2 photocatalysts for the degradation of organic dyes in wastewater treatment","authors":"Wanchen Xie, Gonggang Liu, Yuan Liu, Yuanjuan Bai, Yuanyuan Liao, Ting Li, Chongqing Wang, Shanshan Chang, Jinbo Hu","doi":"10.1007/s10934-024-01619-3","DOIUrl":"10.1007/s10934-024-01619-3","url":null,"abstract":"<div>The discharge of dye industry wastewater without any proper treatments has raised tremendous concerns due to its hazardous nature and potential risks. Photocatalytic degradation is a promising technology for environmentally friendly and sustainable treatment of dye pollutants. Nanomaterial-based photocatalysts have been successfully applied to treat industrial dye wastewater. Among them, titanium dioxide (TiO2) with diverse nanostructure and numerous advantages has garnered significant attentions. However, the morphological difference of TiO2 is of paramount importance for enhancing its degradation performance. This review provides an overview of recent advances in various forms of multidimensional TiO2, including 0D nanoparticles, 1D nanowires, nanotubes, nanofibers, and nanorods, 2D nanosheets and nanoplates, as well as assembled 3D micro-nano structures, for photocatalytic dye wastewater treatment. The article could briefly elaborate the conventional synthesis routes, advantages, challenges, and application areas of TiO2 in different dimensions, and compares their photocatalytic degradation performance and mechanisms. Simultaneously, these approaches of modified performances by doping metal ions and non-metal ions have emphatically involved over here. Noteworthily, the insights into the future trends, challenges, and prospects of multidimensional TiO2 materials have been also proposed.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"31 5","pages":"1655 - 1681"},"PeriodicalIF":2.5,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140833939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surface evaluation of carbonitride coating materials at high temperature: an investigation of oxygen adsorption on crystal surfaces by molecular dynamics simulation 高温下碳化物涂层材料的表面评估：通过分子动力学模拟研究晶体表面的氧吸附情况

IF 2.5 4区材料科学

Journal of Porous Materials Pub Date : 2024-04-30 DOI: 10.1007/s10934-024-01627-3

M. N. Mirzayev, G. T. Imanova, D. Neov, M. Rasoul, I. R. Bekpulatov, F. K. Khallokov, E. P. Popov, K. Hasanov, S. Isayeva, B. Mauyey, D. M. Mirzayeva, F. Tatardar, M. Dinu, G. Kaminski, A. Vladescu (Dragomir)

{"title":"Surface evaluation of carbonitride coating materials at high temperature: an investigation of oxygen adsorption on crystal surfaces by molecular dynamics simulation","authors":"M. N. Mirzayev, G. T. Imanova, D. Neov, M. Rasoul, I. R. Bekpulatov, F. K. Khallokov, E. P. Popov, K. Hasanov, S. Isayeva, B. Mauyey, D. M. Mirzayeva, F. Tatardar, M. Dinu, G. Kaminski, A. Vladescu (Dragomir)","doi":"10.1007/s10934-024-01627-3","DOIUrl":"10.1007/s10934-024-01627-3","url":null,"abstract":"<div>In the presented work, changes in the surface morphology and crystal structure of the coatings obtained by adding Zr, Si, Nb, ZrSi and ZrNb elements added to the TiCN base matrix after thermal annealing at high temperature were studied. The novelty of the current study lies in the comprehensive investigation of the structural and compositional changes of carbonitride coatings, their behavior under thermal conditions, and the implications for their practical applications. The goal of the proposed experiment was to evaluate the influence of composition and structure on the oxygen adsorption tendencies at both high (2000 –1500 K) and low temperatures (0–100 K), through molecular dynamics. The formation mechanism of the gas and oxide phase on the surface of the coatings during the thermal annealing was simulated by the molecular dynamics code. The formation of gas products before the formation of the oxide layer on the surface of the coatings was shown by molecular dynamics simulation. Based on the structural analysis conducted by scattering X-rays from small angles, it was determined that a new phase is formed on the surface of the coatings. Formation of free cubic TiC phase was observed in both TiZrSiCN and TiZrNbCN coatings under the influence of temperature. Degradation of surface morphology and formation of pinholes were found after thermal annealing. The experimental formation of the oxide phase on the surface of the sample up to a temperature of 1270 K expands the application possibilities of the coatings in various industrial fields including catalysis.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"31 4","pages":"1531 - 1539"},"PeriodicalIF":2.5,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140833934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diphenylglyoxime gapped nickel immobilized on multi-walled carbon nanotube: a new nanocatalyst for one-pot synthesis of spiro furo[2,3-d]pyrimidines 固定在多壁碳纳米管上的二苯基乙醛肟间隙镍：一种新的纳米催化剂，可用于螺呋喃并[2,3-d]嘧啶的一步法合成

IF 2.5 4区材料科学

Journal of Porous Materials Pub Date : 2024-04-30 DOI: 10.1007/s10934-024-01616-6

Shadi Namdar, Nader Noroozi Pesyan

引用次数: 0

Catalytic oxidation of lignin model non-phenolic monomer Veratryl alcohol over iron containing mesoporous SBA-1 含铁介孔 SBA-1 催化氧化木质素模型非酚类单体 Veratryl 醇

IF 2.5 4区材料科学

Journal of Porous Materials Pub Date : 2024-04-29 DOI: 10.1007/s10934-024-01624-6

Nirupama Parida, Paresh Kumar Mohanty, Sharada Shrinivas Pati, Sushanta K. Badamali

{"title":"Catalytic oxidation of lignin model non-phenolic monomer Veratryl alcohol over iron containing mesoporous SBA-1","authors":"Nirupama Parida, Paresh Kumar Mohanty, Sharada Shrinivas Pati, Sushanta K. Badamali","doi":"10.1007/s10934-024-01624-6","DOIUrl":"10.1007/s10934-024-01624-6","url":null,"abstract":"<div>Mesoporous solids possessing open framework, tunable pores, high surface area, and considerable thermal stability provide an ideal environment to be employed as solid catalysts, host material, adsorbent, etc. Herein, we report the study about the insertion of iron into the mesoporous silicate framework of SBA-1 and utilize the material as a potential heterogeneous catalyst for the selective oxidation of lignin model non-phenolic monomer, i.e. veratryl alcohol under mild reaction conditions. Veratraldehyde and veratric acid were obtained as the oxidation products. FeSBA-1 in combination with hydrogen peroxide was selective towards veratraldehyde, on the other hand, veratric acid was selectively obtained when tert-butyl hydroperoxide was used as the oxidant under identical reaction conditions. X-ray diffraction pattern of FeSBA-1 revealed the formation of a cubic, three-dimensional SBA-1 structure. HRTEM shows uniform and ordered pore structure having dimensions of ∽ 2.3 ̶ 3.4 nm and wall thickness of ∽ 3.5 nm. FESEM showed regular-shaped FeSBA-1 with spherical morphology having a dimension of ∽ 1.6 μm. BET surface area of 1337 m2 g−1 and pore diameter of ∽ 19 Å was determined by N2 adsorption-desorption measurements. The mesoporous nature of FeSBA-1 was further supported by TGA studies. EPR studies indicated the presence of Fe(III) both in tetrahedral and octahedral coordination within the framework of FeSBA-1. DRUV-VIS studies revealed the presence of Fe(III) in both framework and extra-framework locations of the SBA-1 silicate network. IR studies supported the linkage of Fe–O–Si within FeSBA-1. The absence of the Fe2O3 phase was evidenced by Raman studies.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"31 5","pages":"1629 - 1639"},"PeriodicalIF":2.5,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140808844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pure Mg foams stabilized by CaO particles 由氧化钙颗粒稳定的纯镁泡沫

IF 2.5 4区材料科学

Journal of Porous Materials Pub Date : 2024-04-28 DOI: 10.1007/s10934-024-01609-5

Akshay Devikar, G.S. Vinod Kumar

引用次数: 0

Changes in properties and mechanism of poly(p-phenylene terephthalamide) activated carbon paper prepared by different activation methods 不同活化方法制备的聚对苯二甲酰对苯二胺活性炭纸的性能变化及机理研究

IF 2.5 4区材料科学

Journal of Porous Materials Pub Date : 2024-04-27 DOI: 10.1007/s10934-024-01604-w

Hailong Li, Guanghang Sun, Ling Meng, Jian Hu

{"title":"Changes in properties and mechanism of poly(p-phenylene terephthalamide) activated carbon paper prepared by different activation methods","authors":"Hailong Li, Guanghang Sun, Ling Meng, Jian Hu","doi":"10.1007/s10934-024-01604-w","DOIUrl":"10.1007/s10934-024-01604-w","url":null,"abstract":"<div>Activated carbon paper is a type of porous carbon material with a highly developed pore structure and a large specific surface area. It finds extensive applications in adsorption, complexation, and catalyst support. To prepare high-performance activated carbon paper, this study investigates the changes in performance and structure of Poly(p-phenylene terephthalamide) (PPTA) paper under CO2 activation, ZnCl2 activation, H3PO4 activation, and NaOH activation conditions. The research reveals that carbon paper after CO2 activation has a certain tensile strength (0.36 MPa), while chemically activated carbon paper lacks tensile strength. Incorporating 15% carbon fiber (CF) into PPTA paper increases the tensile stress (1.26 MPa) and tensile strain (4.18%) of the activated carbon paper. NaOH-activated carbon paper has the highest specific surface area (1321.6 m2/g), the most disordered carbon structure (ID/IG = 1.22), the lowest carbon yield (23.9%), and a pore rate 4.16% higher than that of CO2-activated samples. The activated carbon paper prepared by ZnCl2 activation has the highest content of C = N bonds, with the nitrogen content of pyridine increasing by 31.8% compared to CO2 activation. This indicates that ZnCl2 protects the N elements in PPTA paper during the activation process, preventing their decomposition during carbonization. The activated carbon paper prepared by H3PO4 activation has the lowest electrical conductivity (1.62 S/cm).</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"31 5","pages":"1589 - 1600"},"PeriodicalIF":2.5,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140801486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A 2-dimensional modelling of the coating process of nickel on polyurethane foam via electrodeposition 通过电沉积在聚氨酯泡沫上镀镍过程的二维建模

IF 2.5 4区材料科学

Journal of Porous Materials Pub Date : 2024-04-27 DOI: 10.1007/s10934-024-01608-6

N. Ghiasi, F. Kunz, A. Jung, S. Diebels

引用次数: 0

Controlled synthesis of high performance SAPO-34 with sheet-like morphology and small particle size using concentrated gel system 利用浓缩凝胶系统控制合成具有片状形态和小粒径的高性能 SAPO-34

IF 2.5 4区材料科学

Journal of Porous Materials Pub Date : 2024-04-27 DOI: 10.1007/s10934-024-01614-8

Ni Liang, Haiyan Wang, Yujia Wang, Lei Kang, Yingzhi Bai, Na Sun

{"title":"Controlled synthesis of high performance SAPO-34 with sheet-like morphology and small particle size using concentrated gel system","authors":"Ni Liang, Haiyan Wang, Yujia Wang, Lei Kang, Yingzhi Bai, Na Sun","doi":"10.1007/s10934-024-01614-8","DOIUrl":"10.1007/s10934-024-01614-8","url":null,"abstract":"<div>A strategy was devised for the synthesis of SAPO-34, which involved a concentrated gel system-assisted two-step crystallization method. This strategy effectively controlled the size and morphology of SAPO-34. The successful synthesis of SAPO-34 crystals with micron-scale cubic morphology and nano-scale sheets were achieved using triethylamine as a low-cost template. The paper thoroughly examined the growth evolution that occurs during the crystallization process, and it delved into the factors such as gel concentration and crystallization conditions in the synthesis. Furthermore, potential theories regarding nucleation and growth mechanisms were suggested. A systematic study was conducted to examine how the morphology and acidity of SAPO-34 zeolites impact their catalytic performance. The results confirmed that the SAPO-34 with low silicon content and lamellar structure was successfully synthesized through a two-step crystallization within a gel system of H2O/Al2O3 = 30, with a thickness of approximately 50–300 nm. SAPO-34 nanosheets demonstrated a substantial enhancement in catalytic performance, with a catalytic life of 370 min and an 84.1% selectivity towards light olefins.</div>","PeriodicalId":660,"journal":{"name":"Journal of Porous Materials","volume":"31 5","pages":"1577 - 1588"},"PeriodicalIF":2.5,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140809044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0