ChemistrySelect最新文献_第9页

Influence of Particle Size of Lignite-Based Hard Carbon on Sodium Storage Performance

IF 1.9 4区化学

ChemistrySelect Pub Date : 2024-12-03 DOI: 10.1002/slct.202404647

Zhitao Yang, Yukuan Wei, Gang Liu, Leilei Zhang, Tengfei Huang, Haohao Xue, Yuhang Zhang, Zishun Lin

{"title":"Influence of Particle Size of Lignite-Based Hard Carbon on Sodium Storage Performance","authors":"Zhitao Yang, Yukuan Wei, Gang Liu, Leilei Zhang, Tengfei Huang, Haohao Xue, Yuhang Zhang, Zishun Lin","doi":"10.1002/slct.202404647","DOIUrl":"https://doi.org/10.1002/slct.202404647","url":null,"abstract":"The particle size of hard carbon used as an anode material for sodium-ion batteries (SIBs) directly affects critical physical properties, including specific surface area and conductivity of the electrode, thereby influencing the electrode's sodium storage performance. However, related research is limited. In this work, lignite-derived hard carbons with various particle sizes were investigated as anode materials for SIBs. The electrochemical performance and Na+ diffusion capability were evaluated. The results show that smaller particle sizes in hard carbon anodes lead to reduced mesopore volumes, specific surface areas, and coating densities, which effectively improve cycle stability, initial coulombic efficiency (ICE), and rate capability of the electrode. Specifically, hard carbon anodes within a 1–15 µm particle size distribution exhibited a reversible capacity of 251 mAh g−1 and an ICE of 73.67% at a current density of 25 mA g−1. Even after 100 cycles at 0.2 C, these anodes maintained a reversible capacity of 238 mAh g−1, achieving a capacity retention rate of 99.85%.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"9 45","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142764073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Phosphorus Heterocycles and Their Biological Applications

IF 1.9 4区化学

ChemistrySelect Pub Date : 2024-12-03 DOI: 10.1002/slct.202404258

Asim Kumar, Joy Mukhopadhyay, Srikant Bhagat

{"title":"Phosphorus Heterocycles and Their Biological Applications","authors":"Asim Kumar, Joy Mukhopadhyay, Srikant Bhagat","doi":"10.1002/slct.202404258","DOIUrl":"https://doi.org/10.1002/slct.202404258","url":null,"abstract":"Life of the living organism is based on phosphorous, and it is involved in almost all important biological and biochemical processes such as energy transfer, bone development and storing genetic information. Many of the therapeutic agents having C─P bond, isolated naturally as well and widely used in daily clinical practices are phosphorus-containing drugs (e.g: phosphotriesters, phosphonates, phosphinates, phosphine oxides, phosphoric amides, bisphosphonates, phosphoric anhydrides, etc.) and growing further. The phosphorus heterocycles (PHs) integrate the merits of both phosphorus atom and heterocyclic scaffolds representing an important class of organophosphorus compounds, which are constantly drawing the attention among both industrial and scientific society as these compounds have shown varieties of related applications. Owing to its seminal biological importance PHs have inspired a whole generation of medicinal chemists to come up with novel scaffolds containing phosphorous atom. This review is focused mainly on the compilation of different classes of bioactive phosphorus containing heterocyclic skeletons (which includes phosphorus atom within the heterocyclic ring system or as substituted phosphorus atom attached with another heterocyclic ring system) having both therapeutic and other material chemistry applications since the year 2000 onwards barring their synthetic routes.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"9 45","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142764070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Superior Salting-Out of MgSO4 to Improve the Synthesis of 5-Hydroxymethylfurfural

IF 1.9 4区化学

ChemistrySelect Pub Date : 2024-12-03 DOI: 10.1002/slct.202403221

Zhi Cao, Chao Liu, Haitao Cao, Zhongxiang Fan, Yixiang Shi, Tao Shen

{"title":"Superior Salting-Out of MgSO4 to Improve the Synthesis of 5-Hydroxymethylfurfural","authors":"Zhi Cao, Chao Liu, Haitao Cao, Zhongxiang Fan, Yixiang Shi, Tao Shen","doi":"10.1002/slct.202403221","DOIUrl":"https://doi.org/10.1002/slct.202403221","url":null,"abstract":"The effect of salts on the 5-hydroxymethylfurfural (HMF) synthesis over the catalyst of AlCl3-HCl was investigated. An unprecedented R (distribution coefficient) value of 30.48 was achieved in the H2O/THF system when MgSO4 was used as a salting-out agent. Results indicated that the excellent salting-out effect of MgSO4 on HMF was attributed to the synergistic effect of Mg2+ and SO42−. MgSO4 showed more efficiency on the HMF synthesis than other salts in the ChCl-H2O/THF biphasic system. A 78.1% yield of HMF was achieved from glucose under optimal conditions, and higher than 95.0% of the produced HMF was partitioned into the organic phase due to the excellent salting-out effect of MgSO4. During the recyclability of the aqueous phase, a remarkably high yield of HMF (78.0%) and conversion of glucose (93.8%) were achieved even after 10 cycles. The MgSO4 also showed efficiency to improve the synthesis of HMF from other sugars. Finally, the salting-out effect of MgSO4 on sugar dehydration was investigated in other biphasic systems, and the yield of HMF showed an obvious increase compared with the literature reports.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"9 45","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142764071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Conductive Modification of Activated Carbon Fiber Cloths via Electrophoretic Deposition for Cathode in Lithium-Ion Capacitor

IF 1.9 4区化学

ChemistrySelect Pub Date : 2024-12-03 DOI: 10.1002/slct.202403716

Xing Chen, Changyu Yan, Xue Chen, Cheng Yang, Yong Liu, Shujing Liu, Chaoyu Song, Prof. Zhiling Xin, Prof. Jiantao Zai, Prof. Miao Xu

{"title":"Conductive Modification of Activated Carbon Fiber Cloths via Electrophoretic Deposition for Cathode in Lithium-Ion Capacitor","authors":"Xing Chen, Changyu Yan, Xue Chen, Cheng Yang, Yong Liu, Shujing Liu, Chaoyu Song, Prof. Zhiling Xin, Prof. Jiantao Zai, Prof. Miao Xu","doi":"10.1002/slct.202403716","DOIUrl":"https://doi.org/10.1002/slct.202403716","url":null,"abstract":"With the growing demand for high performance energy storage devices, the advanced manufacturing technology of electrodes, which is a crucial component, has become increasingly essential in academic research and industrial applications. Activated carbon fiber cloth (ACFC) is a promising candidate for lithium-ion capacitor (LIC) electrodes due to its abundant internal space and pores. However, the wider application of ACFC is restricted by its inferior conductivity. The conventional coating process is costly in terms of both materials and time and is only applicable to surface treatment with limitations in treating shaped substrate such as ACFCs. To overcome the applications obstacles of ACFC in batteries and capacitors, we propose a novel strategy for modification that utilizes electrophoretic deposition (EPD) to deposit Super P onto the surface, thus enhancing its conductivity. After being deposited for 10 min at 80 V, the modified ACFC exhibited higher conductivity. When matched with Si@C anode, the assembled LIC demonstrates excellent initial specific areal capacitance (710 mF cm−2) and cycling retention, with 76.92% remaining after 100 cycles at a current density of 7 mA cm−2. When matched with Si@C anode, the assembled LIC demonstrates excellent initial specific areal capacitance (26.91 F g−1) and cycling retention, with 85.21% remaining after 100 cycles at a current density of 0.2 A g−1. This work showcases the potential of EPD technology in the realm of electrode preparation and offers insights for electrode manufacture in other systems.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"9 45","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142764075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Design, Synthesis, Molecular Docking and Hypoglycemic Activity of Novel Coumarin Analogues

IF 1.9 4区化学

ChemistrySelect Pub Date : 2024-12-03 DOI: 10.1002/slct.202403293

Assist. Prof. Anchal Verma, Alok Singh Thakur, Smriti Dewangan

{"title":"Design, Synthesis, Molecular Docking and Hypoglycemic Activity of Novel Coumarin Analogues","authors":"Assist. Prof. Anchal Verma, Alok Singh Thakur, Smriti Dewangan","doi":"10.1002/slct.202403293","DOIUrl":"https://doi.org/10.1002/slct.202403293","url":null,"abstract":"Diabetes and its associated conditions are significant causes of morbidity and mortality. Despite the abundance of available medications for diabetes treatment, their limitations have spurred ongoing research in this field. Consequently, there is a need to discover a potential therapeutic molecule for managing diabetes and its complications. In current research work a series of novel coumarin analogs (5a–5e) were designed, synthesized, characterized through FTIR, 1H NMR, 13C NMR, and mass spectroscopy and evaluated for antidiabetic property. Molecular docking study was performed to link its binding affinity toward AMPK. DPPH scavenging assay was performed for in vitro antioxidant activity, for reference standard ascorbic acid was taken. In vivo hypoglycemic activity was performed on streptozotocin and nicotinic acid induced diabetic rats. All synthesized molecule showed good docking, score among them compound 5b has lowest docking score −11.25 kcal/mol. Molecule 5b and 5c showed greater antioxidant potential with good IC50 value, i.e., 20.4 g/mL and 21.6 g/mL. In vivo antidiabetic study showed good control on blood glucose level, cholesterol, triglyceride, Hb1AC as well as SGOT and SGPT level on animals fed 5b when compared to metformin. This result showed that test molecule 5b has potential to lower the blood glucose level without causing any toxicity.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"9 45","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142764076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Theoretical Investigation of Physicochemical Properties, Bioactivity, and Toxicity of Common Anxiety Medications

IF 1.9 4区化学

ChemistrySelect Pub Date : 2024-12-03 DOI: 10.1002/slct.202404146

Soumadip Banerjee, Pritha Ghosh, Rama Rathi, Avik Ghosh, Ria Sinha Roy, Abhijit K. Das

{"title":"Theoretical Investigation of Physicochemical Properties, Bioactivity, and Toxicity of Common Anxiety Medications","authors":"Soumadip Banerjee, Pritha Ghosh, Rama Rathi, Avik Ghosh, Ria Sinha Roy, Abhijit K. Das","doi":"10.1002/slct.202404146","DOIUrl":"https://doi.org/10.1002/slct.202404146","url":null,"abstract":"Physicochemical properties, bioactivity scores, toxicity, chemical reactivity descriptor (GCRD), polarizability, and UV–vis spectroscopy of 10 common medicines used for the treatment of anxiety have been investigated to understand their activity and adverse effect in the human body. GCRD, polarizability, and UV–vis data of the drug molecules have been analyzed at the density functional M06-2X/cc-pVTZ level. Molinspiration, Osiris Property Explorer, and the SwissTargetPrediction tools have been used to study the molecular and physicochemical properties, drug likeness/bioactivity scores, and toxicity of the drug molecules. The calculated results show that all drug molecules have good bioavailability and are orally active, which corroborate with the clinical data. Most of the theoretical results are first reported, and the predicted results agree well with the clinical data and published reports wherever available. The calculated GCRD parameters confirm that chlordiazepoxide (D3) is the most reactive drug molecule. Drug likeness and drug score indicate that alprazolam (D1), chlordiazepoxide (D3), paroxetine (D7), and selegiline (D9) are safe medicines for humans. The predicted toxicities also substantiate the clinical data. The BOILED-Egg plot illustrates that as alprazolam (D1) and paroxetine (D7) are the substrates of the P-glycoprotein (PGP+), they are actively pumped up from the brain or to the gastrointestinal lumen.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"9 45","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142764072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Ru Active Centers Incorporated on Ce-MOFs as an Efficient Heterogeneous Catalyst for Oxidation of Alkylarenes to Carbonyls

IF 1.9 4区化学

ChemistrySelect Pub Date : 2024-12-03 DOI: 10.1002/slct.202403461

Ruibi Zhao, Zhixian Wang, Hao Sun, Guozhu Chen, Huaiqing Zhao

引用次数: 0

Synthesis of Aluminum Complexes Based on 2,6-Bis(2-hydroxyphenyl)Pyridines: Efficient Initiators for Ring-Opening Polymerization of Cyclic Esters

IF 1.9 4区化学

ChemistrySelect Pub Date : 2024-12-03 DOI: 10.1002/slct.202404218

Valeriia A. Serova, Artem V. Lykov, Dr. Badma N. Mankaev, Milana U. Agaeva, Dr. Konstantin A. Lyssenko, Dr. Elena V. Chernikova, Dr. Maxim V. Zabalov, Prof. Dr. Mikhail P. Egorov, Prof. Dr. Sergey S. Karlov

{"title":"Synthesis of Aluminum Complexes Based on 2,6-Bis(2-hydroxyphenyl)Pyridines: Efficient Initiators for Ring-Opening Polymerization of Cyclic Esters","authors":"Valeriia A. Serova, Artem V. Lykov, Dr. Badma N. Mankaev, Milana U. Agaeva, Dr. Konstantin A. Lyssenko, Dr. Elena V. Chernikova, Dr. Maxim V. Zabalov, Prof. Dr. Mikhail P. Egorov, Prof. Dr. Sergey S. Karlov","doi":"10.1002/slct.202404218","DOIUrl":"https://doi.org/10.1002/slct.202404218","url":null,"abstract":"The search for new initiators based on nontoxic metal complexes, allowing for the controlled production of polycaprolactone (PCL) and polylactide (PLA) is an actual task. In the present work, we report the synthesis of aluminum complexes 6a and 6b based on substituted 2,6-bis(2-hydroxyphenyl)pyridine pro-ligands. The compositions and structures of the novel compounds were established by elemental analysis and 1H, 13C, NMR spectroscopy in the solid state by X-ray diffraction analysis (6a and 6b). All the synthesized aluminum complexes are monomeric. Complexes 6a and 6b (in presence of benzyl alcohol (BnOH)) turned out to be active in the ring opening polymerization (ROP) of ε-caprolactone (ε-CL), L-, rac-lactide (L-, rac-LA) gave PCL and PLA with high molecular weights. The mechanism of the polymerization reaction for compounds С, 6a, and 6b was also investigated using the density functional theory (DFT) method. The substituent effect analyzed in terms of percent buried volume and non-covalent interactions. The values of calculated Gibbs free activation energies correspond to the trend found experimentally.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"9 45","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142764077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The Ru/CeO2-NaOH-NaI Solvent-free Catalytic System for the Hydroesterification of C2H4, CO, and C2H5OH

IF 1.9 4区化学

ChemistrySelect Pub Date : 2024-12-02 DOI: 10.1002/slct.202403135

Huaihu Jin, Qi Cao, Prof. Dongfang Wu

{"title":"The Ru/CeO2-NaOH-NaI Solvent-free Catalytic System for the Hydroesterification of C2H4, CO, and C2H5OH","authors":"Huaihu Jin, Qi Cao, Prof. Dongfang Wu","doi":"10.1002/slct.202403135","DOIUrl":"https://doi.org/10.1002/slct.202403135","url":null,"abstract":"Ethyl propionate can be produced from CO, C2H4, and CH3CH2OH as raw materials by ethylene hydroesterification in one step. In this paper, a solvent-free composite catalytic system (Ru/CeO2-NaI-NaOH) is developed to catalyze the hydroesterification of C2H4, CO, and C2H5OH. The formation and inhibition mechanisms of 3-pentanone and acetal are studied, and the pathway for the generation of ethyl propionate has also been analyzed. The factors that influence the performance of catalytic system were researched, such as catalyst reduction temperature, the addition of Ru/CeO2, reaction temperature, reaction time, the partial pressure of CO, and so forth. In Ru/CeO2-NaOH-NaI heterogeneous catalytic system, at the experiment conditions of 3 MPa and 180 °C, the C2H4 conversion and the ethyl propionate selectivity are 66.7% and 92.0%, respectively after 4 h reaction. This work presents a strategy for the production of propionate by ethylene hydroesterification, catalyzed by a heterogeneous catalytic system.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"9 45","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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, Characterization, and Adsorption Performance of (Mg0.4Co0.4Mn0.2)Fe2−2xSmxSnxO4 Nanoparticles for the Removal of Heavy Metal Ions and Water Treatment

IF 1.9 4区化学

ChemistrySelect Pub Date : 2024-12-02 DOI: 10.1002/slct.202404577

Rola Moussa, Amani Aridi, Nour AlHajjar, Ramadan Awad, Daoud Naoufal

{"title":"Synthesis, Characterization, and Adsorption Performance of (Mg0.4Co0.4Mn0.2)Fe2−2xSmxSnxO4 Nanoparticles for the Removal of Heavy Metal Ions and Water Treatment","authors":"Rola Moussa, Amani Aridi, Nour AlHajjar, Ramadan Awad, Daoud Naoufal","doi":"10.1002/slct.202404577","DOIUrl":"https://doi.org/10.1002/slct.202404577","url":null,"abstract":"Water contamination by heavy metal ions poses a significant environmental threat. This study investigates (Mg0.4Co0.4Mn0.2)Fe2−2xSmxSnxO4 (0.000 ≤ x ≤ 0.050) ferrite nanoparticles (NPs) as eco-friendly adsorbents for Cu(II), Cr(III), Fe(III), and Zn(II). X-ray powder diffraction (XRD) confirmed sample purity, with crystallite size decreasing from 20.28 to 13.31 nm as x increased. Scanning and transmission electron microscopies revealed irregular morphology, whereas energy-dispersive X-ray showed successful dopant incorporation into the ferrite lattice. Brunauer–Emmett–Teller analysis indicated a surface area increase from 76.5 to 91.4 m2/g with doping. X-ray photoelectron spectroscopy identified oxidation states, and Fourier transform infrared spectroscopy confirmed the spinel structure. Doping also increased the direct bandgap energy from 3.224 to 3.245 eV and decreased Urbach energy from 0.374 to 0.352 eV. The NPs achieved high removal efficiencies for Cr(III) at 93.3%, Fe(III) at 98.8%, and Zn(II) at 80.6%, though removal of Cu(II) was minimal. The optimal adsorption performance was observed at x = 0.050. Adsorption followed second-order kinetics and fit the Langmuir isotherm.","PeriodicalId":146,"journal":{"name":"ChemistrySelect","volume":"9 45","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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