Applied Organometallic Chemistry最新文献

{"title":"Unraveling the Potential of Mononuclear Zn(II) and Cu(II) Schiff Base Metal Complexes: Microwave-Aided Synthesis, Theoretical Analysis and Application in Biomimetic Catalysis, CT-DNA Interaction, and In Vitro Biological Assays","authors":"Sneha Paul,&nbsp;Thangjam Sanjurani,&nbsp;Jyotirmoy Talukdar,&nbsp;Pranjit Barman,&nbsp;Ankita Das,&nbsp;Piyush Pandey","doi":"10.1002/aoc.7749","DOIUrl":"https://doi.org/10.1002/aoc.7749","url":null,"abstract":"<div>\u0000 \u0000 <p>Given the widespread and diverse effects of transition metal ions such as copper and zinc in multiple biological processes, this research endeavor addresses herein the microwave-aided synthesis of two novel tetradentate ONNO (<b>L1</b>) and tridentate NNO (<b>L2</b>) donor Schiff base ligands derived from 4,5-dimethyl-1,2-phenylenediamine and 4-bromo-2-hydroxybenzaldehyde in a 1:2 ratio and from 4,5-dimethyl-1,2-phenylenediamine and 5-methoxy-2-hydroxybenzaldehyde in a 1:1 ratio, with their respective zinc, <b>ZnL1(1)</b> and <b>ZnL2(3)</b>, and copper, <b>CuL1(2)</b> and <b>CuL2(4)</b>, Schiff base metal complexes, which are comprehensively characterized utilizing physiochemical and analytical techniques, along with geometry optimization using the DFT approach. Spectrophotometric analyses have been used to assess the biomimetic activity in the conversion of 3,5-DTBC to 3,5-DTBQ with turnover numbers 53.4 and 78 h⁻¹ in methanol for <b>2</b> and <b>4</b>, whereas the zinc complexes are found to be ineffective. With CT-DNA, possible modes of interaction with the synthesized complexes have been explored using absorption spectroscopy, where the associated binding constants ranged between 1.541 × 10⁵ and 2.186 × 10⁵ M⁻¹. EtBr-bound DNA was used in the fluorescence quenching experiments with Stern–Volmer constant (<i>K</i>_sv) values in the range 4.084 × 10⁴ and 3.402 × 10⁴ M⁻¹, showing a stronger association with CT-DNA. The compounds' ability to inhibit bacterial strains was also examined in vitro, as well as their ability to reduce inflammation, through the protein denaturation method and the DPPH assay for antioxidant activity have been performed. Furthermore, molecular docking simulations have been carried out to obtain a deeper comprehension of the molecular-level interactions with CT-DNA and cyclooxygenase-2 (COX-2).</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Innovative Water Splitting Process for a Sustainable In Situ Hydrogen Generation–Reduction of Nitrobenzenes Catalyzed by a New Bimetallic Nanocatalyst","authors":"Hamed Zarei,&nbsp;Sara Sobhani,&nbsp;José Miguel Sansano","doi":"10.1002/aoc.7740","DOIUrl":"10.1002/aoc.7740","url":null,"abstract":"<div>\u0000 \u0000 <p>In this research, bimetallic CdNi nanoparticles encapsulated in a magnetic spent coffee ground (Fe₃O₄@COFF/CdNi) was synthesized as a new nanocatalyst. The structural and chemical characteristics of Fe₃O₄@COFF/CdNi were comprehensively investigated using various techniques, including FT-IR, XRD, XPS, TEM, VSM, EDS, TGA, BET, and ICP. Through XRD, XPS analysis, TEM images, and EDS mapping, the presence of CdNi nanoalloys was conclusively established. Fe₃O₄@COFF/CdNi exhibited remarkable catalytic activity for the hydrogen generation from water using <i>iso</i>-propanol as a clean sacrificial agent. The high catalytic performance of Fe₃O₄@COFF/CdNi was attributed to the synergistic cooperative effect of Cd and Ni within CdNi nanoalloys. Interestingly, this process was performed for the in situ generated hydrogen from water to reduce a range of nitrobenzenes simultaneously into the corresponding anilines in high yields (93%–98%). The magnetic and hydrophilic characteristics of Fe₃O₄@COFF/CdNi facilitated its reusability over five runs. Using water as the most abundant hydrogen source, for the first time for in situ hydrogen generation–reduction of nitrobenzenes without demanding on external light sources or power supplies can be mentioned as a significant milestone of this field of study.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142269349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"N-Heterocyclic Carbene–Based Catalysts for Glycerol Valorisation: Current State and Perspectives","authors":"Alexander Cárdenas-Acero,&nbsp;Carolina Blanco,&nbsp;Edwin A. Baquero","doi":"10.1002/aoc.7760","DOIUrl":"10.1002/aoc.7760","url":null,"abstract":"<div>\u0000 \u0000 <p><i>N</i>-Heterocyclic carbenes (NHCs) are molecules with exceptional catalytic properties in a wide range of reactions. Recently, there has been a growing interest in using them as catalysts for biomass conversion. In this review, we examine the current state of glycerol valorisation (GV) using several catalytic systems, including metallic complexes bearing NHCs as ligands, polymeric building blocks and organocatalysts. The study covers literature published in the last 15 years, detailing the catalyst scope, reaction conditions and products of GV. This analysis emphasises the importance of varying the steric and electronic properties of NHCs within the reviewed catalytic systems. Furthermore, a critical evaluation of the proposed mechanistic pathways complements these results. A comprehensive understanding of the challenges of using such catalytic systems will emerge by compiling literature on the use of NHCs for the studied reactions. Additionally, this will promote new opportunities for further research in both academic and industrial fields.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Copper(I) Complexes With Phenanthroline-Functionalized NHC Ligands Achieve Effective Anticancer Activity via Mitochondrial and Endoplasmic Reticulum Stress","authors":"Chao Chen,&nbsp;Yilun Zheng,&nbsp;Hong Rao,&nbsp;Fan Huang,&nbsp;Chao Shen,&nbsp;Chunxin Lu","doi":"10.1002/aoc.7756","DOIUrl":"10.1002/aoc.7756","url":null,"abstract":"<div>\u0000 \u0000 <p>Copper complexes exhibit promising anticancer properties, which can be further promoted by suitable ligands. In this study, we synthesized and investigated the anticancer effects of three copper(I) complexes with N-heterocyclic carbene (NHC) ligands derived from phenanthroline-functionalized imidazole salts. The synthesis of these NHC-copper(I) complexes (<b>Cu1</b>-<b>Cu3</b>) was meticulously characterized using NMR and elemental analysis; their crystal structures were further delineated by X-ray diffraction. Our findings illustrate the unique geometric configurations of these complexes: <b>Cu1</b> features a dinuclear arrangement with off-linear geometry; <b>Cu2</b> and <b>Cu3</b> are characterized by a bi-copper core stabilized by two phenanthroline-modified carbene ligands. Crucially, in vitro cytotoxic evaluations revealed that these complexes possess suitability anticancer activity. Among them, <b>Cu2</b> exhibited enhanced cytotoxicity activity, achieving a half-maximal inhibitory concentration (IC₅₀) of 4.36 ± 0.25 μM in colon cancer cell line HCT-116, markedly surpassing the efficacy of cisplatin. Subsequent investigations elucidated that <b>Cu2</b> notably increases intracellular reactive oxygen species (ROS) levels and induces mitochondrial membrane depolarization and endoplasmic reticulum stress, leading to oxidative stress-mediated apoptosis of colon cancer cells.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142269350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel Cu(II) and Zn(II) Nanocomplexes Based on 5,6-Diphenyl-1,2,4-Triazine: Preparation, Spectroscopic, TD-DFT Calculations, Molecular Docking and Solvatochromic Studies","authors":"Mona Boshra,&nbsp;Omima M. I. Adly,&nbsp;Ebtesam M. Abdelrhman,&nbsp;Mohamed F. Eid,&nbsp;Fatma Samy","doi":"10.1002/aoc.7752","DOIUrl":"10.1002/aoc.7752","url":null,"abstract":"<div>\u0000 \u0000 <p>The reaction between 2-hydroxy-1-naphthaldehyde and 3-hydrazino-5,6-diphenyl-1,2,4-triazine produced a novel hydrazone ligand (DTHMN), which reacted with Cu(II) and Zn(II) metal ion in molar ratio 1:1, giving octahedral Cu(II)-DTHMN and tetrahedral Zn(II)-DTHMN nanosized complexes. The structural geometries have been elucidated on the basis of elemental analysis, nuclear magnetic resonance, infrared, electronic, and electron spin resonance spectra, and magnetic and molar conductance measurements as well as x-ray diffraction and thermal analysis. TEM analysis showed that Zn(II)-DTHMN complex has nano-rode morphology shape. On the other hand, Cu(II)-DTHMN has sphere shape within nanodomain. The DTHMN ligand exhibits ONN chelating sites through N-triazine ring, azomethine nitrogen, and deprotonated OH group, forming the mononuclear metal complexes. The synthesized compounds showed a distinct solvatochromic behavior in different polar solvents. A bathochromic alteration is observed when moving from less to high polar solvents, indicating strong solute–solvent interactions accompanied by intramolecular charge transfer (ICT). The ground and excited state dipole moments of these compounds were determined experimentally by solvatochromic shift method using Bilot–Kawski, Lippert–Mataga, Bakhshiev, and Kawski–Chamma–Viallet functions and a microscopic Reichardt's solvent polarity parameter (E_T^N). The dipole moment is increased significantly upon excitation referring to stabilizing the excited species includes n–π* transition by polarity of solvent. The experimental results are generally consistent with those values obtained by B3LYP/GENECP method at 6-311G(d,p) basis set for C, H, N, and O atoms and SDD (Stuttgart/Dresden) basis set for the metal atoms. The compounds were tested for antimicrobial efficiency against Gram-positive bacteria, Gram-negative bacteria, and fungus strain. Finally, molecular docking was used to study the interactions between donors (the current compounds) and receptors FabH–CoA complex (PDB code: 1HNJ).</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Insight Into Experimental and Theoretical Investigation of Structure, Photophysical Property by ESIPT Processes and Biological Activities of Schiff Base Copper Complex","authors":"Iravatham Rama,&nbsp;Singaravel Nathiya,&nbsp;Murugesan Panneerselvam,&nbsp;Annamalai Subashini,&nbsp;Luciano T. Costa,&nbsp;Gothandam Jeeva,&nbsp;Shanmugam Achiraman,&nbsp;Kumar Dhinesh","doi":"10.1002/aoc.7737","DOIUrl":"10.1002/aoc.7737","url":null,"abstract":"<div>\u0000 \u0000 <p>A novel Schiff base (BSSMO) and its copper complex have been synthesized, and their structure was delineated using single crystal XRD studies. Computational techniques were used to design and evaluate BSSMO-based luminophores, revealing a significant intramolecular hydrogen bond within the molecule. Understanding ESIPT is crucial for optimizing photophysical and luminophore properties of organic molecules, especially for advancing optoelectronic devices. The study also explored the mechanisms of GSIPT and ESIPT for these BSSMO-based luminophores using transition state theory, charge distribution, molecular orbital analysis, and quantum theory of atoms in molecules. Results advocated that BSSMO-L2 exhibits higher absorption compared with BSSMO-L1 and the same trend is observed in emission spectral studies. However, the intensity of enol emissions in BSSMO-L2 is lower than that of keto (BSSMO-L3) emissions and the S1 (Keto form) emission of BSSMO-L3 shows significantly larger values, making it attractive for optoelectronic devices. The findings offer valuable insights for the development of ESIPT emitters with distinct photophysical properties. The in silico antidiabetic study of BSSMO-L2 explores the interaction with PPAR-γ protein, revealing a moderate affinity and stable complex, enhancing its bio-potential for future applications. The in vitro anticancer study of Cu-BSSMO-L2 complex shows a potential anticancer effect through mitochondrial and extrinsic death receptor mediated pathways. These insights contribute to the design of novel benzenesulfonamide-based bioactive molecules.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142269305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chlorine-Thymol Substituted Silicon (IV) Phthalocyanines: Synthesis, Characterization, and In Vitro Acetylcholinesterase (AChE)/Butyrylcholinesterase (BChE) Inhibitory Effect","authors":"Ayse Aktas Kamiloglu,&nbsp;Tayfun Arslan,&nbsp;Askın Tekin,&nbsp;Halit Kantekin,&nbsp;Irfan Acar","doi":"10.1002/aoc.7757","DOIUrl":"10.1002/aoc.7757","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, novel chlorine-thymol derivatives (1,3-bis(4-chloro-2-isopropyl-5 methylphenoxy)propan-2-ol (<b>Thy-OH</b>^<b>I</b>) and 2-[2-(4-chloro-2-isopropyl-5-methylphenoxy)ethoxy]ethanol (<b>Thy-OH</b>^<b>II</b>)) and axially di-4-chloro-2-isopropyl-5-methylphenoxy (<b>Thy-SiPc</b>), 1,3-bis(4-chloro-2-isopropyl-5-methylphenoxy)propanoxy (<b>Thy-OH</b>^<b>I</b><b>-SiPc)</b>, and 2-[2-(4-chloro-2-isopropyl-5-methylphenoxy)ethoxy]ethanoxy (<b>Thy-OH</b>^<b>II</b><b>-SiPc)</b> substituted silicon phthalocyanine compounds were obtained, and their structures were elucidated by the combination of various methods such as NMR, IR, UV–Vis, and MS. The inhibitory effects of these compounds (<b>Thy-OH</b>^<b>I</b>, <b>Thy-OH</b>^<b>II</b>, <b>Thy-SiPc</b>, <b>Thy-OH</b>^<b>I</b><b>-SiPc</b> and <b>Thy-OH</b>^<b>II</b><b>-SiPc</b>), synthesized for the first time, on cholinesterase enzymes (AChE and BChE) were investigated in the laboratory environment. In the studies, notably <b>Thy-OH</b>^<b>I</b><b>-Si</b> and thymol derivative ligand <b>Thy-OH</b>^<b>II</b> displayed significant inhibition against AChE and BChE.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and Antitumor Activity of Photosensitizer Eugenol Porphyrin Derivatives: A Combination Therapy of Chemotherapy and Photodynamic Therapy","authors":"Hui Li,&nbsp;Chen Tang,&nbsp;Zhenhua Liu,&nbsp;Zejie Tian,&nbsp;Lei Shi,&nbsp;Lingyan Yang,&nbsp;Jun He,&nbsp;Wenbin Ai,&nbsp;Xufeng He,&nbsp;Yunmei Liu","doi":"10.1002/aoc.7759","DOIUrl":"10.1002/aoc.7759","url":null,"abstract":"<div>\u0000 \u0000 <p>Photodynamic therapy (PDT) is a promising treatment for cancer. At present, the development of photosensitizers has become a hot spot for research at home and abroad. In this study, 20 porphyrin-butylphenol compounds were synthesized, and the structures of the target compounds were analyzed by means of ¹H NMR, IR, mass spectrometry, and other analytical methods. The quantum yield of the target compound as a photosensitizer for the production of singlet oxygen was determined by using a DPBF reactive oxygen probe (1,3-diphenylisobenzofuran). The anticancer activity of the synthesized target compounds was studied using HepG2 cells and A549 cells. The results of the singlet oxygen experiments showed that the Zn metal chelated compound had better singlet oxygen production than the free-base porphyrin. The cellular activity assays showed that the metal-chelated compounds exhibited better in vitro antitumor activity.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Size-Dependent Catalytic Activity Over MOF-Derived Cobalt Oxide Supported PdO Nanoparticles in Suzuki Reaction","authors":"Shiguang Pan,&nbsp;Xue Chen,&nbsp;Yang Chen,&nbsp;Dan Liu,&nbsp;Jia Guo,&nbsp;Alex T. Kuvarega,&nbsp;Bhekie B. Mamba,&nbsp;Jianzhou Gui","doi":"10.1002/aoc.7754","DOIUrl":"10.1002/aoc.7754","url":null,"abstract":"<div>\u0000 \u0000 <p>Palladium nanoparticles immobilized on ZIF 67-derived porous CoO_x were prepared by wet-impregnation method, followed by calcination at different temperatures. The calcination temperature has been employed to effectively manipulate the size of metal nanoparticles, where higher calcination temperatures resulted in larger sizes. The experimental results revealed that by manipulating the calcination temperature, the synthesis of palladium nanoparticles with varying sizes could be effectively controlled. Increasing the calcination temperature resulted in larger particle sizes. At a calcination temperature of 350°C, the synthesis process produced the smallest palladium nanoparticles, averaging 1.35 nm in size, facilitating the reaction between aryl halides and arylboronic acids with yields ranging from 83% to 99%. Furthermore, these nanoparticles demonstrated superior catalytic activity and recyclability.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cobalt-Potassium Synergistic Modification Effects on Fe-Based Catalysts for CO2 Hydrogenation to Low-Carbon Olefins","authors":"Yi Jing Jia,&nbsp;Jin Quan Tao,&nbsp;Hao Ran Liu,&nbsp;Wen Bin Huang,&nbsp;Rongpeng Yao,&nbsp;Miaomiao Niu,&nbsp;Rongrong Li,&nbsp;Qiang Wei,&nbsp;Ya Song Zhou","doi":"10.1002/aoc.7715","DOIUrl":"10.1002/aoc.7715","url":null,"abstract":"<div>\u0000 \u0000 <p>To enhance the CO₂ hydrogenation activity and low-carbon olefin selectivity of Fe-based catalysts, a strategy involving the use of metal promoters to modulate the structure of active metal centers in catalyst preparation was proposed. The incipient wetness impregnation method was used to introduce modifying agents K and/or Co into the Fe/Al₂O₃ catalyst. Characterization techniques such as XRD, BET, SEM, HRTEM, H₂-TPR, XPS, CO₂-TPD, NH₃-TPD, and TG were employed to investigate the effects of the modifying agents on the dispersion, reducibility, electronic properties, and acid–base properties of active metal species. Furthermore, the influence of K and Co modification on the CO₂ hydrogenation activity and low-carbon olefin selectivity of Fe/Al₂O₃ catalysts was explored. The results revealed that the introduction of K generated more basic sites and electron-rich active metal centers in the catalyst, facilitating the adsorption and activation of CO₂, while suppressing the hydrogenation of olefins and the formation of methane, thus improving the selectivity towards low-carbon olefins. Co promoter facilitated the dispersion of Fe species, exposing more active sites and enhancing the FTS reaction activity, leading to more CO being converted into C₂₊ hydrocarbon products. Under the synergistic effect of K and Co, the CO₂ conversion activity of the Fe-based catalyst significantly increased, achieving a CO₂ conversion rate of 37%, while the selectivity towards C₂-C₄₌ increased to 31.9%.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}