Applied Organometallic Chemistry最新文献

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Monometallic/Bimetallic Co-ZIFs Synthesis, Characterization, and Application for Adsorption of SO2 and CO2 in Continuous Flow System 单/双金属共 ZIFs 的合成、表征及在连续流系统中吸附二氧化硫和二氧化碳的应用
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2024-09-10 DOI: 10.1002/aoc.7747
Sara Sumbal, Zaheer Aslam, Umar Irshad, Sobia Anwar, Aamir Abbas, Waqar Ahmad, Ali Hamza
{"title":"Monometallic/Bimetallic Co-ZIFs Synthesis, Characterization, and Application for Adsorption of SO2 and CO2 in Continuous Flow System","authors":"Sara Sumbal,&nbsp;Zaheer Aslam,&nbsp;Umar Irshad,&nbsp;Sobia Anwar,&nbsp;Aamir Abbas,&nbsp;Waqar Ahmad,&nbsp;Ali Hamza","doi":"10.1002/aoc.7747","DOIUrl":"10.1002/aoc.7747","url":null,"abstract":"<div>\u0000 \u0000 <p>Sulfur dioxide is serious ultimatum to human health as well as environment, while carbon dioxide is viewed as one of the primary drivers of the worldwide temperature alteration. Therefore, capturing of these gases is a dynamic research subject attracting much consideration from scientists. Herein, we report synthesis of a series of Co-ZIF and bimetallic M-Co-ZIF adsorbents and application for room temperature adsorption of SO<sub>2</sub> and CO<sub>2</sub>. In this work, the breakthrough curves for the adsorption of sulfur dioxide and carbon dioxide on Co-ZIF and M-Co-ZIF were obtained experimentally and theoretically using a laboratory-scale fixed bed column at room temperature. In this work, the adsorption capacities and breakthrough points for modified bimetallic M-Co-ZIF were found to be relatively higher than parent Co-ZIF. Notably, a high SO<sub>2</sub> uptake capacity of 7.1 mmol/g for Zr-Co-ZIF and high CO<sub>2</sub> uptake capacity of 69.9 mmol/g for Ni-Co-ZIF were achieved. The parent cobalt and bimetallic ZIF materials were characterized by XRD, FTIR, SEM, and nitrogen physisorption. The XRD results confirm the formation of pure phase highly crystalline ZIF materials while BET analysis suggests high surface area of prepared adsorbents. Finally, the results of dynamic adsorption combined with characterization show great potential for preparation of bimetallic ZIF adsorbents for effective SO<sub>2</sub> and CO<sub>2</sub> adsorption.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187771","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}
引用次数: 0
Constructing Noncytotoxic Organometallic Nanostructures of Ag–BSA–CaCO3 构建无细胞毒性的 Ag-BSA-CaCO3 有机金属纳米结构
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2024-09-10 DOI: 10.1002/aoc.7745
Ana Gabriela Rodríguez-Calderón, Rosa Elvira Núñez-Anita, José T. Holguín-Momaca, Maria Eugenia Contreras-García
{"title":"Constructing Noncytotoxic Organometallic Nanostructures of Ag–BSA–CaCO3","authors":"Ana Gabriela Rodríguez-Calderón,&nbsp;Rosa Elvira Núñez-Anita,&nbsp;José T. Holguín-Momaca,&nbsp;Maria Eugenia Contreras-García","doi":"10.1002/aoc.7745","DOIUrl":"10.1002/aoc.7745","url":null,"abstract":"<div>\u0000 \u0000 <p>A multifunctional nanostructured hybrid composed of metal–protein–ceramic was designed and then synthesized using three different methods: chemical reduction, physical adsorption, and coprecipitation. The processes yielded colloidal spherical silver nanoparticles (AgNPs) enveloped in a bovine serum albumin (BSA) corona, leading to the core–shell structure AgNPs–BSA. To enhance biocompatibility and mitigate potential toxicity associated with metallic nanoparticles, this core–shell structure was coated with a layer of calcium carbonate (CaCO<sub>3</sub>). In order to analyze the internal structure of the resulting hybrid nanostructure (AgNPs–BSA–CaCO<sub>3</sub>), a number of samples were produced by focused ion beam (FIB) and characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and zeta potential (ζ) measurements. The cytotoxic effect of the samples were evaluated through in vitro tests on mouse macrophage cell line RAW 264.7 ATCC TIB-71, this was accomplished by calculating the appropriate concentrations from the dose–response curve of AgNPs. Research showed that the AgNPs–BSA–CaCO<sub>3</sub> mixture triggered the formation of vaterite; these findings were corroborated by FTIR and Raman techniques. The spherical nanostructures have an average diameter size of 4.3 ± 2 μm and an average roughness (<i>R</i><sub><i>a</i></sub>) of 3.11 ± 0.62 μm. Zeta potential (ζ) and isoelectric point studies reveal that this hybrid nanostructure exhibits amphoteric behavior that differs from either AgNPs or AgNPs–BSA alone. Cell viability response exceeded 75%, indicating the noncytotoxic nature of the proposed hybrid nanostructures.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187772","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}
引用次数: 0
Reduction of Carboxamides Into Amines Catalyzed by La[NH-2,6-iPr2-4-FcC6H2]3/HBpin 在 La[NH-2,6-iPr2-4-FcC6H2]3/HBpin 催化下将羧酰胺还原为胺
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2024-09-10 DOI: 10.1002/aoc.7739
Qiujin Ye, Yukun Wang, Jue Chen, Yunjie Luo
{"title":"Reduction of Carboxamides Into Amines Catalyzed by La[NH-2,6-iPr2-4-FcC6H2]3/HBpin","authors":"Qiujin Ye,&nbsp;Yukun Wang,&nbsp;Jue Chen,&nbsp;Yunjie Luo","doi":"10.1002/aoc.7739","DOIUrl":"10.1002/aoc.7739","url":null,"abstract":"<div>\u0000 \u0000 <p>Reduction of carboxamides is an efficient approach to obtain the corresponding amines, albeit it is one of the most problematic. In this work, by use of pinacolborane (HBpin) as a reductant, the rare-earth metal tris (arylamido) complex supported by a ferrocenyl-modified arylamido ligand La[NH-2,6-<sup><i>i</i></sup>Pr<sub>2</sub>-4-FcC<sub>6</sub>H<sub>2</sub>]<sub>3</sub> was employed as a precatalyst for primary and secondary amide reductions. This catalyst system exhibited high activity toward hydroborative reduction of amides to amines under mild conditions, as well good tolerance for heteroatoms and functional groups in the reduction. A lanthanide hydride was experimentally verified as the active species and the reduction mechanism was proposed.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187773","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}
引用次数: 0
Synthesis, Antimicrobial, DNA Interactions, In Vitro Cytotoxicity, and Cell Cycle Analysis Efficiency of Newly Nano-Sized Cu (II), Ni (II), Co (II), and Zn (II) Thio-Schiff Base Complexes of 2-((E)-((4,5-Dimethyl-2-(((E)-4-Methylbenzylidene)Amino)Phenyl)imino)Methyl)-Benzenethiol 2-((E)-((4,5-二甲基-2-((E)-4-甲基亚苄基)氨基)苯基)亚氨基)甲基)-苯硫酚的新型纳米尺寸铜 (II)、镍 (II)、钴 (II) 和锌 (II) 硫-希夫碱配合物的合成、抗菌、DNA 相互作用、体外细胞毒性和细胞周期分析效率
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2024-09-07 DOI: 10.1002/aoc.7731
Sharah A. Aldulmani, Othman Hakami, Abdel-Nasser M. A. Alaghaz
{"title":"Synthesis, Antimicrobial, DNA Interactions, In Vitro Cytotoxicity, and Cell Cycle Analysis Efficiency of Newly Nano-Sized Cu (II), Ni (II), Co (II), and Zn (II) Thio-Schiff Base Complexes of 2-((E)-((4,5-Dimethyl-2-(((E)-4-Methylbenzylidene)Amino)Phenyl)imino)Methyl)-Benzenethiol","authors":"Sharah A. Aldulmani,&nbsp;Othman Hakami,&nbsp;Abdel-Nasser M. A. Alaghaz","doi":"10.1002/aoc.7731","DOIUrl":"10.1002/aoc.7731","url":null,"abstract":"<div>\u0000 \u0000 <p>Nano-sized bivalent metal complexes, specifically [M(L)2] with L = 2-((E)-((4,5-dimethyl-2-(((E)-4-methylbenzylidene)amino)phenyl)-imino)methyl)benzenethiol] (C<sub>23</sub>H<sub>22</sub>N<sub>2</sub>S) and M = Cu (II) (<b>C1</b>), Co (II) (<b>C2</b>), Ni (II) (<b>C3</b>), and Zn (II) (<b>C4</b>), underwent synthesis and subsequent characterization. Elemental analyses, infrared, NMR, mass, electronic, magnetic susceptibility, conductivity assessments, and X-ray diffraction studies were used to assess our bivalent metal complexes. DFT studies were used to study the tautomeric equilibrium of the tridentate thio-Schiff base ligand (HL), via the DFTB3LYP method in connection with a 6–311G* correlation consistent basis set. Two tautomers, which are thione and thiol forms, were studied to estimate the predominant one. The metal formed four coordinated with the tridentate N<sub>2</sub>S donor thio-Schiff base to form octahedral geometry complexes. The SEM, TEM, XRD, AFM, and EDX of the studied complexes unveiled distinct and strong diffraction peaks, signifying their crystalline nature and providing evidence of their particle sizes being within the nano-size. The crystal sizes calculated for all complexes were determined to be ranging from 27.73 to 76.39 nm. The interactions between metal complexes and calf thymus DNA, and their potential for mimicking insulin activity, were investigated in a controlled lab setting by measuring their ability to inhibit alpha-amylase. The antimicrobial potential of thio-Schiff base ligand (HL) plus complexes (<b>C1</b>–<b>C4</b>) were tested. The viscosity and UV–Vis absorption determinations were utilized to assess the calf thymus DNA (CT-DNA) interaction with the nano-sized metal (II) chelates. Our flow cytometry data indicate significant levels of apoptosis and cell cycle arresting in both liver and breast cancer cell lines.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187802","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}
引用次数: 0
Biogenic Syntheses of AgNPs With Leaf Extract Abution indicum and Its Application for Antimicrobial and Photocatalytic Activity 叶提取物 Abution indicum 的 AgNPs 生物合成及其在抗菌和光催化活性中的应用
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2024-09-07 DOI: 10.1002/aoc.7758
Ayyakkannu Ramesh, Jayaraman Elanchezhiyan, Dhanapal Karthickeyan, Moorthy Mani, Kasinathan Kaviyarasu, Ramamurthy Uthrakumar, Amal BaQais, Noorah Saleh Al-Sowayan, Mir Waqas Alam
{"title":"Biogenic Syntheses of AgNPs With Leaf Extract Abution indicum and Its Application for Antimicrobial and Photocatalytic Activity","authors":"Ayyakkannu Ramesh,&nbsp;Jayaraman Elanchezhiyan,&nbsp;Dhanapal Karthickeyan,&nbsp;Moorthy Mani,&nbsp;Kasinathan Kaviyarasu,&nbsp;Ramamurthy Uthrakumar,&nbsp;Amal BaQais,&nbsp;Noorah Saleh Al-Sowayan,&nbsp;Mir Waqas Alam","doi":"10.1002/aoc.7758","DOIUrl":"10.1002/aoc.7758","url":null,"abstract":"<div>\u0000 \u0000 <p>The biogenic synthesis of silver nanoparticles (AgNPs) with leaf extract <i>Abution indicum</i> was done, and those were characterized by ultraviolet–visible spectroscopy (UV–vis), Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), powder X-ray diffraction (PXRD), field emission scanning electron microscopy (FESEM) and transmission electron microscope (TEM) with energy-dispersive X-ray (EDX) spectroscopy. The analysis by UV–vis spectroscopy showed a peak of 450 nm, and DLS and zeta potential were utilized to determine the size distribution of the biosynthesized <i>Abution indicum</i>–AgNPs (AI-AgNPs) with a size range of 24–37 nm, and the X-ray diffraction peak 38.096<sup>o</sup> was used to confirm that the crystalline structure of AI-AgNPs. Furthermore, the antipathogenic effect of synthesized AgNPs and standard antibiotic (<i>Ciprofloxacin)</i> as studied the positive control in different types of bacterial pathogens likes <i>Staphylococcus aureus</i> and <i>Escherichia Coli</i>, with the zone of inhibition values of 9 mm. The synthesized AgNPs displayed excellent photocatalytic activity against reactive blue under sunlight than a UV light irradiation, and maximum degradation of 43% was achieved with 66 min of reaction time. In view of promising activity, the AgNPs could be used photocatalyst for the degradation of dyes in wastewater, and pomegranate leaf extract can be applied as eco-benign and cost-effective approach for AgNPs synthesis. Hence, the current findings suggest that <i>Abutilon indicum</i> is a valuable source for tailoring the potential of AgNPs toward various enhanced biological, photocatalytic, and adsorption activities. Consequently, the plant biological molecule-mediated synthesized AI-AgNPs could be excellent contenders for future therapeutic applications.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187801","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}
引用次数: 0
A Novel Acetylcholinesterase-Based Electrochemical Biosensor Using g-C3N4@MoS2 Nanohybrid for the Detection of Trichlorfon 使用 g-C3N4@MoS2 纳米杂化技术检测敌百虫的基于乙酰胆碱酯酶的新型电化学生物传感器
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2024-09-05 DOI: 10.1002/aoc.7721
Srijita Chatterjee, Harshita Singh, Divya Hudda,  Sweety, Devendra Kumar
{"title":"A Novel Acetylcholinesterase-Based Electrochemical Biosensor Using g-C3N4@MoS2 Nanohybrid for the Detection of Trichlorfon","authors":"Srijita Chatterjee,&nbsp;Harshita Singh,&nbsp;Divya Hudda,&nbsp; Sweety,&nbsp;Devendra Kumar","doi":"10.1002/aoc.7721","DOIUrl":"10.1002/aoc.7721","url":null,"abstract":"<div>\u0000 \u0000 <p>Organophosphorus pesticides are commonly employed in agricultural fields due to their potent insecticidal properties and short environmental persistence. However, organophosphorus pesticides enter the human body through the food chain, surface, and groundwater, leading to irreversible damage to the nervous system. Therefore, monitoring the presence of organophosphorus pesticides in food is necessary to ensure human safety. Herein, an ultra-sensitive electrochemical biosensor has been prepared by using graphitic carbon nitride decorated molybdenum sulfide (g-C<sub>3</sub>N<sub>4</sub>@MoS<sub>2</sub>) as a catalyst for the detection of organophosphorus pesticides, trichlorfon. The synergistic effect of g-C<sub>3</sub>N<sub>4</sub>@MoS<sub>2</sub> boosts the electron transfer across the electrode surface, further contributing to the immobilization of acetylcholinesterase (AChE) enzyme using glutaraldehyde as a crosslinking agent. At optimum conditions, the developed biosensor (AChE/g-C<sub>3</sub>N<sub>4</sub>@MoS<sub>2</sub>/ITO) demonstrated a broad linear range (5–100 nM) with a low detection limit (LOD) of 2.1 nM obtained using the equation 3σ/S where σ is the standard deviation and S is the sensitivity of the bioelectrode. In addition, the AChE/g-C<sub>3</sub>N<sub>4</sub>@MoS<sub>2</sub>/ITO biosensor exhibited good stability and reproducibility, with satisfactory results for real sample analysis of trichlorfon detection.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187774","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}
引用次数: 0
Reduction Removal of Cr(VI) Using Oxalic Acid With MOF-525(Fe) as Catalyst: Performance and Mechanism 以 MOF-525(Fe)为催化剂,用草酸还原去除六价铬:性能与机理
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2024-09-05 DOI: 10.1002/aoc.7748
Yun Kong, Hui Xu, Wenbin Hu, Bowen Huang, Renjuan Wang, Jin Shao, Qi Chen, Qiang Yang
{"title":"Reduction Removal of Cr(VI) Using Oxalic Acid With MOF-525(Fe) as Catalyst: Performance and Mechanism","authors":"Yun Kong,&nbsp;Hui Xu,&nbsp;Wenbin Hu,&nbsp;Bowen Huang,&nbsp;Renjuan Wang,&nbsp;Jin Shao,&nbsp;Qi Chen,&nbsp;Qiang Yang","doi":"10.1002/aoc.7748","DOIUrl":"10.1002/aoc.7748","url":null,"abstract":"<div>\u0000 \u0000 <p>Hexavalent chromium (Cr(VI)) has attracted great considerations due to their high toxicity, teratogenicity, and carcinogenicity. In this study, four Zr-MOFs were synthesized and used to comparative study their catalytic performances of oxalic acid (OA) for Cr(VI) removal. Results showed that the removal efficiency for Cr(VI) was reached 65.91%, 78.64%, 53.58%, and 96.32% by MOF-525, MOF-525(Co), MOF-525(Zn), and MOF-525(Fe) in the presence of OA when the initial Cr(VI) concentration was 100 mg·L<sup>−1</sup>, respectively. The single-factor experiments for further improving the Cr(VI) removal by MOF-525(Fe)/OA demonstrated that the optimal conditions were OA dosage of 790 mg·L<sup>−1</sup>, and MOF-525(Fe) dosage of 500 mg·L<sup>−1</sup> and pH of 2.0, and the MOF-525(Fe)/OA system could be used to treat Cr(VI)-containing wastewater at concentrations below 50 mg·L<sup>−1</sup>. Ionic strength studies indicated that Na<sup>+</sup>, K<sup>+</sup>, Mg<sup>2+</sup>, Cl<sup>−</sup>, and SO<sub>4</sub><sup>2−</sup> had little effect on the catalytic reduction of Cr(VI), while high concentrations of Ca<sup>2+</sup> (0.10 and 0.25 mol·L<sup>−1</sup>), NO<sub>3</sub><sup>−</sup> (0.25 mol·L<sup>−1</sup>), and PO<sub>4</sub><sup>3−</sup> (0.25 mol·L<sup>−1</sup>) had significant inhibition effects. The reusability experiments showed that the stability of MOF-525(Fe) was excellent, and it could be used for potential applications. Based on the results of Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and Electron Paramagnetic Resonance spectrometer (EPR), the possible reduction mechanism of Cr(VI) by MOF-525(Fe)/OA system was proposed as follows: The complexation of OA with Fe<sup>3+</sup> was first complexed to produce Fe<sup>2+</sup> and CO<sub>2</sub><sup>•−</sup>, then Cr(VI) was combined with Zr–O and Fe–O clusters in MOF-525(Fe) to obtain activation energy, and the reduction ability was enhanced at the same time; finally, Cr(VI) obtained electrons from CO<sub>2</sub><sup>•−</sup> and was sequentially reduced as Cr(V) and Cr(III).</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187828","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}
引用次数: 0
Synthesis and Characterization of Fe3O4@SiO2@APIDSO3H as a Novel and Efficient Magnetic Nanocatalyst in Pechmann Condensation 作为 Pechmann 冷凝中新型高效磁性纳米催化剂的 Fe3O4@SiO2@APIDSO3H 的合成与表征
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2024-09-05 DOI: 10.1002/aoc.7716
Zohre Aghashiri, Soheila Ghassamipour, Arezu Jamalian, Masoomeh Emadi
{"title":"Synthesis and Characterization of Fe3O4@SiO2@APIDSO3H as a Novel and Efficient Magnetic Nanocatalyst in Pechmann Condensation","authors":"Zohre Aghashiri,&nbsp;Soheila Ghassamipour,&nbsp;Arezu Jamalian,&nbsp;Masoomeh Emadi","doi":"10.1002/aoc.7716","DOIUrl":"10.1002/aoc.7716","url":null,"abstract":"<div>\u0000 \u0000 <p>Fe<sub>3</sub>O<sub>4</sub>@APIDSO<sub>3</sub>H as a novel and magical magnetic nanocatalyst was designed, synthesized, and characterized by different spectroscopic techniques such as Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), x-ray diffraction (XRD), energy-dispersive x-ray (EDX), thermogravimetric analysis (TGA), and vibrating sample magnetometer (VSM). The loading percentage of sulfonic acid on the magnetic nano catalyst was calculated using CHNS analysis. Then, the potential use of it was investigated for the synthesis of various coumarins by Pechmann condensation. The corresponding products were synthesized and isolated in 60%–99% yields. The catalyst was recycled and reused for four times without loss in catalytic activity.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187829","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}
引用次数: 0
Calcined Nickel Oxide Nanostructures at Different Temperatures Onto Graphite for Efficient Electro-Oxidation of Ethylene Glycol in Basic Electrolyte 不同温度下在石墨上煅烧氧化镍纳米结构,实现乙二醇在碱性电解液中的高效电氧化
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2024-09-05 DOI: 10.1002/aoc.7729
Nasser Zouli, R. M. Abdel Hameed, Ahmed Abutaleb, Ibrahim M. Maafa, Ayman Yousef
{"title":"Calcined Nickel Oxide Nanostructures at Different Temperatures Onto Graphite for Efficient Electro-Oxidation of Ethylene Glycol in Basic Electrolyte","authors":"Nasser Zouli,&nbsp;R. M. Abdel Hameed,&nbsp;Ahmed Abutaleb,&nbsp;Ibrahim M. Maafa,&nbsp;Ayman Yousef","doi":"10.1002/aoc.7729","DOIUrl":"10.1002/aoc.7729","url":null,"abstract":"<div>\u0000 \u0000 <p>Fabricating a highly active and stable nanocatalyst material displays a great concern when constructing a commercially viable ethylene glycol (EG) fuel cell. Herein, nickel oxide nanostructures were grown onto graphite (NO/T) using coprecipitation and calcination protocol at different temperatures. Techniques for XRD, TEM, SEM, and EDX investigations were used to look into the produced crystal planes, shape, and elemental mapping of synthesized nickel oxide nanoparticles. Different NO/T nanocatalyst electroactivities were examined in order to oxidize EG molecules in basic electrolyte. The surface area values of calcined nanostructures at 200°C and 300°C were much higher than those measured at NO/T-400 by 7.62 and 3.71 folds to explain their outstanding performance. Some kinetic information for varied NO/T nanocatalysts was derived including the electron transfer coefficient, rate constant, and surface coverage values. Electron transfer rate constants of 0.1946, 0.3734, 0.0113, and 0.0303 s<sup>−1</sup> were calculated at NO/T-200, NO/T-300, NO/T-400, and NO/T-500, respectively. Increased oxidation current densities could be achieved when NO/T nanomaterials were subjected to lowered calcination temperatures. NO/T-200 and NO/T-300 nanocatalysts also displayed decreased E<sub>onset</sub> for alcohol oxidation process by 20 and 41 mV in relation to that at NO/T-400. Moreover, chronoamperometric experiments revealed the prevalence of the stable behavior during EG oxidation at these nanostructures, especially for calcined ones at 200°C and 300°C. Much reduced poisoning rates were measured at NO/T-200 (0.171 s<sup>−1</sup>) and NO/T-300 (0.067 s<sup>−1</sup>) when contrasted to that at NO/T-500 (0.727 s<sup>−1</sup>). Increasing the alcohol and supporting electrolyte concentrations was beneficial in improving the charge transfer characteristics of NO/T nanocatalysts as demonstrated by EIS measurements. This study supports the promising activity of NiO nanoparticles onto graphite as anode materials for direct alcohol fuel cells.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187872","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}
引用次数: 0
Cobalt Single-Atom Catalyst: Synthesis, Characterization and Catalytic Activity 钴单原子催化剂:合成、表征和催化活性
IF 3.7 2区 化学
Applied Organometallic Chemistry Pub Date : 2024-09-04 DOI: 10.1002/aoc.7734
Bindu Syal, Princy Gupta
{"title":"Cobalt Single-Atom Catalyst: Synthesis, Characterization and Catalytic Activity","authors":"Bindu Syal,&nbsp;Princy Gupta","doi":"10.1002/aoc.7734","DOIUrl":"10.1002/aoc.7734","url":null,"abstract":"<div>\u0000 \u0000 <p>One-pot synthesis of acetamides, benzimidazoles, and benzothiazoles are central reactions for synthesizing pharmaceuticals and fine chemicals. Despite tremendous progress in heterogeneous catalysis, the synthesis of these nitrogen-containing compounds still remains challenging. Here, we report an efficient, simple, and cost-effective nitrogen-doped CeO<sub>2</sub>-supported Co single-atom catalyst (SAC) (Co/N-CeO<sub>2</sub>) enabled synthesis of acetamides, benzimidazoles, and benzothiazoles. As far as we know, this is the first to report that SACs catalyze the synthesis of acetamides, benzimidazoles, and benzothiazoles. Detailed spectroscopic characterization revealed the structure of catalytic center. Harnessing the catalytic activity of SACs, the work offers promising routes for future synthesis of heterocycles.</p>\u0000 </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"38 12","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187875","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}
引用次数: 0
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