Research on Chemical Intermediates最新文献

{"title":"CO2 hydrogenation over 5%Ni/CeO2–Al2O3 catalysts: effect of supports composition","authors":"Amir Mosayebi, Atieh Ranjbar, Mohammad Hosein Eghbal Ahmadi","doi":"10.1007/s11164-024-05312-7","DOIUrl":"https://doi.org/10.1007/s11164-024-05312-7","url":null,"abstract":"<p>In current work, the investigation centered on assessing the impact of the CeO₂ to Al₂O₃ ratio in a 5%Ni/CeO₂–Al₂O₃ catalyst on the CO₂ hydrogenation reaction within the temperature range of 240–400 °C. The primary aim was to achieve enhanced conversion rates, while minimizing coke deposition on the catalyst surface. Nickel was incorporated into the CeO₂–Al₂O₃ supports via the deposition–precipitation method. The various physicochemical properties of fresh, reduced and spent catalysts were studied using techniques such as thermal gravimetric analysis (TGA), X-ray diffraction (XRD), N₂ adsorption/desorption, temperature programmed reduction (TPR), H₂-chemisorption, X-ray fluorescence (XRF), and CHNS analyzer. XRD results revealed that the addition of CeO₂ to the Ni/Al₂O₃ catalyst and the increase in ceria loading in the hybrid support had no obvious effect on the crystalline structure. However, several properties including reducibility, coke deposition, and coke formation quantity, coke structure on the catalyst surface, catalytic performance, and thermal stability were altered. The CO₂ conversion remained relatively stable (41.25%) up to 35 h initial on stream for Ni/Al₂O₃ catalyst, indicating no significant deactivation. Conversely, Ni/CeO₂–Al₂O₃ catalyst exhibited high stability up to 45 h initial. The highest CO₂ conversion (58%) was achieved with the Ni/CeO₂ (50%)–Al₂O₃ (50%) at 400 °C, primarily attributed to a lower interaction between nickel species and the support, along with a higher reduction degree. Ni/CeO₂–Al₂O₃ catalysts displayed higher methane selectivity and lower CO selectivity compared to both Ni/Al₂O₃ and Ni/CeO₂ catalysts across the entire temperature range of 240–400 °C.</p>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141194605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of pyridodipyrimidine derivatives using MgFe2O4@Tris as a new nanocatalyst under green condition","authors":"Zahra Ramezaninejad, Lotfi Shiri","doi":"10.1007/s11164-024-05314-5","DOIUrl":"https://doi.org/10.1007/s11164-024-05314-5","url":null,"abstract":"<p>Catalytic processes for the synthesis of basic chemical compounds are currently being developed. Therefore, magnesium ferrite was used as a nanoparticle to synthesize an efficient and recyclable nanocatalyst. The characterization of the catalyst was carried out using various methods such as Fourier- transform infrared spectroscopy (FT-IR), vibrating sample magnetometry, energy dispersive X-ray spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy, X-ray diffraction and thermogravimetric analysis. Finally, an economical and efficient method for pyridodipyrimidine synthesis was developed using an environmentally friendly and recyclable MgFe₂O₄@Tris nanocatalyst in an aqueous medium. For the synthesis of pyridodipyrimidines, a four-component reaction was carried out at room temperature using aldehyde derivatives, barbituric acid and ammonium acetate as substrates. The advantages of this catalyst include high catalytic activity, high yield, short reaction time, the use of environmentally friendly solvents, easy magnetic separation and the possibility of reusing the catalyst.</p>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141167694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Glutamic acid-catalyzed synthesis of dihydroquinazolinone: anticancer activity, electrochemical behavior, molecular docking, dynamics, simulations and drug-likeness studies","authors":"Radhika Mane, Deepak A. Yaraguppi, Avinash Karkada Ashok, Bhavya Gangadharappa, K. B. Chandrakala, Kantharaju Kamanna","doi":"10.1007/s11164-024-05305-6","DOIUrl":"https://doi.org/10.1007/s11164-024-05305-6","url":null,"abstract":"<p>An efficient one-pot multi-component reaction (MCR) of 2,3-dihydro-4(1<i>H</i>)-quinazolinone derivative achieved by the reaction of aryl/heteroaryl aldehyde, isatoic anhydride and substituted aniline in ethanol catalyzed by novel glutamic acid (Glu) under microwave irradiation is described. In this work, derivatives <b>4m</b>, <b>4o</b>, <b>4q</b> and <b>4r</b> are novel compounds among the synthesized derivatives. For the first time, the electrochemical behavior studies for the selected derivatives were tested using cyclic voltammetry, compounds <b>4l</b>, <b>4m</b>, <b>4p</b>, <b>4o,</b> and <b>4q</b> showed good reducing and oxidizing potential, due to the presence of the functional groups. Molecular docking studies of the selected compounds (<b>4l</b>–<b>r</b>) verified, among them highest docking scored <b>4r</b> and <b>4m</b> (− 8.572 and − 8.959 kcal/mol) molecules, respectively. Furthermore, MM/PBSA calculation identified key residues that contribute to the binding energy, activity and assessed cytotoxicity. The in vitro anticancer evaluation of the synthesized compounds was tested against human ovarian cancer PA-1 cell line tested; compounds <b>4r</b> and <b>4m</b> exhibited exceptionally anti-proliferative activity very close to the reference drug doxorubicin (3.66 ± 0.07) with the IC₅₀ value 7.53 ± 0.09 and 17.93 ± 0.12, respectively. According to swissADME study, the blood–brain barrier can be crossed majority of the derivatives tested, except <b>4n</b>, and have high gastrointestinal absorption.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141167770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molybdenum powder induced Fe2+/Fe3+ cycling enhanced activation peroxydisulfate for degradation of AO7: cost analysis, degradation mechanism, and toxicity evaluation","authors":"Yingzi Lin, Jing Chen, Junjie Chen, Lei Chen, Hong Yang, ShengBo Sun, Ningning Sun, Qixuan Weng, Shiqi Tian","doi":"10.1007/s11164-024-05276-8","DOIUrl":"https://doi.org/10.1007/s11164-024-05276-8","url":null,"abstract":"<p>To address the disadvantage of poor degradation effect of Fe²⁺/peroxydisulfate (PDS) system, a co-catalyst was introduced in this study to construct a molybdenum (Mo)/Fe²⁺/PDS system for the degradation of Acid Orange 7 (AO7), and the degradation rate could reach 95.67%. The effects of different parameters (initial pH, Fe²⁺ concentration, etc.) on the degradation effect of AO7 in this system were investigated, and the optimal degradation conditions were obtained by combining cost analysis. Cycling experiments showed that Mo had good stability. The co-catalytic mechanism of Mo powder was determined using X-Ray Diffraction, Scanning Electron Microscope, and X-ray Photoelectron Spectroscopy. The effects of different inorganic anions on AO7 were discussed: Cl⁻ and NO₃⁻ had little effect on degradation, while SO₄²⁻ and HCO₃⁻ both inhibited the removal of AO7 from the system to different degrees, with HCO₃⁻ showing a greater inhibition than SO₄²⁻. The main active radicals were identified as sulfate radical (SO₄^·−) and hydroxyl radical (·OH). In addition, intermediates were identified, and the attack sites were determined by combining the highest occupied molecular orbital/lowest unoccupied molecular orbital energy levels and the Fukui index to hypothesize the degradation pathways. Toxicity indicators such as the mutagenicity of AO7 and intermediates were evaluated, and the overall trend of toxicity was decreasing. This study is expected to provide an efficient treatment process for dye wastewater.</p>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141167636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"KF/MgO used as the catalyst for transesterification of dimethyl carbonate with isosorbide to dicarboxymethyl isosorbide","authors":"Xiafeng Yang, Xin Long, Jianguo Li, Qingyin Wang, Gongying Wang, Guangyuan Zhou","doi":"10.1007/s11164-024-05279-5","DOIUrl":"https://doi.org/10.1007/s11164-024-05279-5","url":null,"abstract":"<p>Solid alkali KF/MgO catalysts were prepared using the impregnation method by combining alkali metal compounds with oxides, which performed the transesterification of isosorbide (IS) with dimethyl carbonate (DMC) into dicarboxymethyl isosorbide (DC). Characterization of the catalysts was conducted through X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, and N₂ adsorption–desorption analysis. The catalytic performance of KF/MgO was examined under diverse KF loading and calcination temperature conditions. The characterization of catalyst identified that the creation of innovative active components K₂MgF₄ and K₂CO₃ were produced at a calcination temperature of 500 ℃ and a KF loading amount of 40%. The catalyst of 40-KF/MgO-500 demonstrated the most effective, favourable activity and selectivity. Through the optimization of transesterification process conditions, it was discovered that the yield of DC was at its highest under the optimal reaction conditions of n(DMC)/n(IS) = 6.5, catalyst dosage of 0.21 wt% (relative to IS mass), transesterification temperature of 120 °C, and reaction time of 6 h.</p>","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141167634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of bio-based caprolactam through dehydration and cyclization of 6-hydroxycaproamide","authors":"Chenghan Zhai, Zhengxiang Ma, Yanji Wang","doi":"10.1007/s11164-024-05310-9","DOIUrl":"https://doi.org/10.1007/s11164-024-05310-9","url":null,"abstract":"","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141100720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of Y-type molecular sieve based on bentonite and study of its performance in hydrocatalytic cracking of shale oil","authors":"Qinghua Liu, Xianglian Wu, Changmin Tuo, Abulikemu Abulizi, Tiezhen Ren, A. Nulahong","doi":"10.1007/s11164-024-05297-3","DOIUrl":"https://doi.org/10.1007/s11164-024-05297-3","url":null,"abstract":"","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141102767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-performance pure blue-emitting CsPbBr3 nanoplatelets via amino acid-mediated strategy","authors":"Qianqian Song, Xu Ou, Fei Lin, Xue Zhang, Siyuan Ye, Yan Li","doi":"10.1007/s11164-024-05289-3","DOIUrl":"https://doi.org/10.1007/s11164-024-05289-3","url":null,"abstract":"","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141106560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green synthesis, characterization and antimicrobial efficacy of silver nanoparticles from Kappaphycus alvarezii extract","authors":"Syafiqah Syazwani Jaffar, S. Saallah, M. Misson, Shafiquzzaman Siddique, J. Roslan, W. Lenggoro","doi":"10.1007/s11164-024-05298-2","DOIUrl":"https://doi.org/10.1007/s11164-024-05298-2","url":null,"abstract":"","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141103236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced degradation of crystal violet dye under solar light by zirconium phosphate-decorated graphitic carbon nitride","authors":"Sakshi Gupta, Sachin Kumar Ben, V. Chandra","doi":"10.1007/s11164-024-05307-4","DOIUrl":"https://doi.org/10.1007/s11164-024-05307-4","url":null,"abstract":"","PeriodicalId":753,"journal":{"name":"Research on Chemical Intermediates","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141110079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}