ChemistryOpen最新文献

A Terpyridine Based 1,2,3-Triazol-1,4-diyl-Fluoroionophore-A Fluorometric Study Towards 3d Metal Ions in Acetonitrile.

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-19 DOI: 10.1002/open.202400403

Thomas Schwarze, Holger Müller, Eric Sperlich, Alexandra Kelling, Hans-Jürgen Holdt

{"title":"A Terpyridine Based 1,2,3-Triazol-1,4-diyl-Fluoroionophore-A Fluorometric Study Towards 3d Metal Ions in Acetonitrile.","authors":"Thomas Schwarze, Holger Müller, Eric Sperlich, Alexandra Kelling, Hans-Jürgen Holdt","doi":"10.1002/open.202400403","DOIUrl":"https://doi.org/10.1002/open.202400403","url":null,"abstract":"In this paper, we report on the sensing role of the 1,2,3-triazol unit in a 1,4-diyl arrangement in a fully π-conjugated fluorescent probe 1 (cf. Scheme 1) towards the fluorometric detection of 3d metal ions. The 1,2,3-triazol-1,4-diyl-fluoroionophore 1 was designed in a donor(D)-acceptor(A) arrangement with a 1,2,3-triazol unit as a π-linker between a terpyridine (A) ionophore and a diethylaminocoumarin (D) fluorophore to study the fluorescence behavior towards the divalent 3d metal ions Mn2+, Fe2+, Co2+, Ni2+, Cu2+ and Zn2+. This fluoroionophore 1 is based on an intramolecular charge transfer (ICT) and shows a moderate quantum yield (φf) of 0.508 in acetonitrile. A modulation of the ICT process in 1 through Fe2+, Co2+, Cu2+, Ni2+ and Zn2+ leads to a small red shift of the lowest energetically lying absorption UV/Vis absorption band and to a very strong 3d metal ion induced fluorescence quenching. It should be considered, that the installation of a 1,2,3-triazole unit as a fully π-linker in ICT probes originates no ratiometric fluorescence response towards Fe2+, Co2+, Cu2+, Ni2+ and Zn2+.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400403"},"PeriodicalIF":2.5,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142863419","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

Integration of Design of Experiments, Analysis of Variance and Response Surface Methodology in Assessing Heterogeneous Catalysts Processes: A Minireview. 在评估异相催化剂过程中整合实验设计、方差分析和响应面方法：小视角。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-16 DOI: 10.1002/open.202400148

Carlos Esteban Aristizábal-Alzate, Eva Castillejos-López, Ana Belén Dongil, Manuel Romero-Sáez

{"title":"Integration of Design of Experiments, Analysis of Variance and Response Surface Methodology in Assessing Heterogeneous Catalysts Processes: A Minireview.","authors":"Carlos Esteban Aristizábal-Alzate, Eva Castillejos-López, Ana Belén Dongil, Manuel Romero-Sáez","doi":"10.1002/open.202400148","DOIUrl":"https://doi.org/10.1002/open.202400148","url":null,"abstract":"This work reviews the application of Analysis of Variance (ANOVA), Design of Experiments (DOE), and Response Surface Methodology (RSM) in heterogeneous catalysis, based on an analysis of recent scientific literature. Heterogeneous catalysis plays a key role in various industries, guiding chemical reactions, optimizing the performance of different processes and/or prioritizing products, and ANOVA, DOE and RSM are valuable tools to understand the intricate relationships between catalyst properties, process variables and reaction responses. This understanding facilitates improvements in catalysts performance and selectivity, thereby optimizing processes. Drawing insights from recent studies, this minireview highlights the different applications of ANOVA-based experimental designs and RSM optimization techniques in catalytic process evaluation. Therefore, this review provides valuable insights into these current statistical methodologies applied to heterogeneous catalysis research, informing the relevance and future directions of the research in the field.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400148"},"PeriodicalIF":2.5,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142827350","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 of MnO_x/TiO₂ Nanostructures for Photocatalytic Removal of 2,4-D Herbicide.

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-13 DOI: 10.1002/open.202400154

Angeles Mantilla, Sandra Cipagauta Díaz, Enrique Samaniego Benitez, Francisco Javier Tzompantzi Morales, Michelle Navarrete Magaña

{"title":"Design of MnOx/TiO2 Nanostructures for Photocatalytic Removal of 2,4-D Herbicide.","authors":"Angeles Mantilla, Sandra Cipagauta Díaz, Enrique Samaniego Benitez, Francisco Javier Tzompantzi Morales, Michelle Navarrete Magaña","doi":"10.1002/open.202400154","DOIUrl":"https://doi.org/10.1002/open.202400154","url":null,"abstract":"The research and modification of semiconductors through different synthesis routes allow obtaining materials with optimal properties to induce new energy levels and improve charge separation efficiency. In this context, the sol-gel method was used to synthesize TiO2-based materials doped with different percentages of MnOx to evaluate their photocatalytic activity in the degradation of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) in water under UV irradiation. Characterization results revealed a reduction in crystallite size to 7.2 nm. Adding MnOx enhanced the optical absorption of TiO2, resulting in a shift toward the red end of the spectrum of the forbidden energy band. The photocatalytic activity increased significantly with the percentage of MnOx, reaching a maximum degradation of 70 % in 6 hours with the 3 MnTi material. This increase was attributed to the synthesis method, which facilitated the formation of nanostructured heterojunctions mainly composed of TiO2 and MnO2, reducing the recombination of electron-hole pairs. TEM analysis confirmed these structures. A reaction mechanism for the 3 MnTi material is proposed, considering the mobility of charge carriers and the photooxidation processes of the pollutant.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400154"},"PeriodicalIF":2.5,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142817376","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

dl-Limonene as an Alternative Sustainable Solvent to Xylenes for the Industrial Preparation of Release Formulations.

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-10 DOI: 10.1002/open.202400259

Giuseppe D'Orazio, Rosa Ragone, Antonino Rizzuti, Francesca Serena Abatematteo, Alessandra Ciampa, Giuseppe Ghisa, Michela Casini, Mario Latronico, Vito Gallo, Piero Mastrorilli, Biagia Musio

{"title":"dl-Limonene as an Alternative Sustainable Solvent to Xylenes for the Industrial Preparation of Release Formulations.","authors":"Giuseppe D'Orazio, Rosa Ragone, Antonino Rizzuti, Francesca Serena Abatematteo, Alessandra Ciampa, Giuseppe Ghisa, Michela Casini, Mario Latronico, Vito Gallo, Piero Mastrorilli, Biagia Musio","doi":"10.1002/open.202400259","DOIUrl":"https://doi.org/10.1002/open.202400259","url":null,"abstract":"Many industrial processes use aromatic hydrocarbons as solvents, including benzene, toluene, ethylbenzene, and xylene (BTEX). However, their use is discouraged due to their toxicological profile. Research is ongoing to find alternative more sustainable solvents. This work explores the adoption of dl-limonene as an alternative to BTEX for the industrial preparation of release formulations containing carnauba wax to be employed in the peelable foils industry. A preliminary chemical-physical characterization of carnauba wax was carried out using spectroscopic (ATR-FTIR, NMR) and thermal analyses (DSC). Based on the chemical composition found for the carnauba wax used in the present study, different solvent mixtures and different concentrations of carnauba wax were tested to obtain a clear and stable solution. The most promising formulations were subjected to a coating test on a solid substrate (polyethylene terephthalate, PET) on a laboratory scale, followed by a peeling test to assess the resulting peeling strength. The dl-limonene/ethyl acetate mixture in the 9 : 1 ratio has been identified as the most suitable to completely solubilize carnauba wax (0.38 wt/vol %) and obtain an adequate release performance. The results of these experiments were then used to set up and successfully perform an industrial-scale coating test.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400259"},"PeriodicalIF":2.5,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142806130","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

A Review on Leaching of Spent Lithium Battery Cathode Materials Adopting Deep Eutectic Solvents.

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-06 DOI: 10.1002/open.202400258

Chongyu Li, Jianjiao Jin, Zhang Yuan, Chenyun Zhang, Liangqin Wu, Chu Wang

{"title":"A Review on Leaching of Spent Lithium Battery Cathode Materials Adopting Deep Eutectic Solvents.","authors":"Chongyu Li, Jianjiao Jin, Zhang Yuan, Chenyun Zhang, Liangqin Wu, Chu Wang","doi":"10.1002/open.202400258","DOIUrl":"https://doi.org/10.1002/open.202400258","url":null,"abstract":"As a result of the swift surge in the adoption of electric vehicles, the quantity of spent lithium-ion power batteries has been growing at an exponential rate. Improper handling of these batteries can lead to the waste of strategic metal resources and pose risks to the environment and human health. Without doubt, it is essential to scientifically recover and reuse these spent power batteries, particularly by recovering positive electrode materials. Currently, there are several methods for recovering positive electrode materials, including pyrometallurgy, hydrometallurgy, bioleaching, and deep eutectic solvents (DESs) leaching. This review concetrated on the emerging technology of DESs leaching for positive electrode materials in spent lithium-ion battery. It provided an overview of the latest advancements in DESs leaching, considering factors such as acidity, reducibility, and coordination of DESs. The current technical status was analyzed and discussed, while also addressing the challenges and prospects for the development of DESs recovery in spent Li-ion power batteries. This work aims to offer practical guidance and serve as a foundation for additional studies and widespread implementation of DESs leaching for positive electrode materials.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400258"},"PeriodicalIF":2.5,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142784266","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

Polyaromatic Cyclophanes Design and their Related Optical Properties.

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-04 DOI: 10.1002/open.202400207

Oumou Diallo, Jean-Frédéric Audibert, Isabelle Leray, David Kreher, Guillaume H V Bertrand

引用次数: 0

Förster Resonance Energy Transfer in Metal Halide Perovskite: Current Status and Future Prospects.

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-04 DOI: 10.1002/open.202400118

Siyang Liu, Waseem Akram, Fanghao Ye, JingCheng Jin, Fangfang Niu, Shakeel Ahmed, Zhengbiao Ouyang, Shou-Cheng Dong, Guijun Li

引用次数: 0

Aerosol Assisted Chemical Vapour Deposition (AACVD) of Zinc dichalcogenoimidodiphosphinate Complexes for the Deposition of Zinc Selenide Thin Films.

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-04 DOI: 10.1002/open.202400295

Temidayo Oyetunde, Martins O Omorogie, Paul O'Brien

引用次数: 0

Facile Determination of Aluminum Content in Industrial Brine by Investigating the Effects of Buffer Systems. 通过研究缓冲体系的影响，轻松测定工业盐水中的铝含量。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-01 Epub Date: 2024-09-03 DOI: 10.1002/open.202400038

Benjámin Csorba, László Farkas, Marcell Csécsi, László T Mika, Iván L Gresits

{"title":"Facile Determination of Aluminum Content in Industrial Brine by Investigating the Effects of Buffer Systems.","authors":"Benjámin Csorba, László Farkas, Marcell Csécsi, László T Mika, Iván L Gresits","doi":"10.1002/open.202400038","DOIUrl":"10.1002/open.202400038","url":null,"abstract":"The aluminum content of concentrated (27 wt%) sodium chloride solutions could be crucial for large-scale chlor-alkali-based industries applying membrane cell electrolysis. Thus, a facile method which enables a fast and reliable protocol to determine the Al content of these solutions on ppb scale in industrial environments is fundamentally important. It was demonstrated that the increased sensitivity of colorful Al-ECR (eriochrome cyanine R) complex by the use of a cationic surfactant and specific biological buffers could effectively indicate the Al content in an extended pH interval of a concentrated saline medium under industrial conditions. The dependence of the analytical protocol on pH, temperature, time, wavelength, and the salinity of the medium was investigated. It was shown that the absorbance-based measurements of the solution should be performed at least 2-4 h after its preparation. By applying the selected two Good's buffers (HEPES: 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid, MOPS: 3-(N-morpholino)-propanesulfonic acid) and Tris (tris(hydroxymethyl)aminomethane), 32.8-38.1 % increase in the sensitivity was achieved for saturated NaCl solutions. Moreover, the limits of detection and quantification (LOD, LOQ) were also lowered by 19.0-29.8 %, and the salinity dependence of the calibration was also reduced.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400038"},"PeriodicalIF":2.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11625942/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142124965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ni-Co Bimetallic Catalysts Supported on Mixed Oxides (Sc-Ce-Zr) for Enhanced Methane Dry Reforming. 以混合氧化物（Sc-Ce-Zr）为支撑的 Ni-Co 双金属催化剂用于增强甲烷干法重整。

IF 2.5 4区化学

ChemistryOpen Pub Date : 2024-12-01 Epub Date: 2024-11-12 DOI: 10.1002/open.202400086

Ahmed E Abasaeed, Ahmed A Ibrahim, Anis H Fakeeha, Mohammed O Bayazed, Mabrook S Amer, Jehad K Abu-Dahrieh, Ahmed S Al-Fatesh

{"title":"Ni-Co Bimetallic Catalysts Supported on Mixed Oxides (Sc-Ce-Zr) for Enhanced Methane Dry Reforming.","authors":"Ahmed E Abasaeed, Ahmed A Ibrahim, Anis H Fakeeha, Mohammed O Bayazed, Mabrook S Amer, Jehad K Abu-Dahrieh, Ahmed S Al-Fatesh","doi":"10.1002/open.202400086","DOIUrl":"10.1002/open.202400086","url":null,"abstract":"Dry methane reforming (DRM) presents a viable pathway for converting greenhouse gases into useful syngas. Nevertheless, the procedure requires robust and reasonably priced catalysts. This study explored using cost-effective cobalt and nickel combined into a single catalyst with different metal ratios. The reaction was conducted in a fixed reactor at 700 °C. The findings indicate that the incorporation of cobalt significantly enhances catalyst performance by preventing metal sintering, improving metal dispersion, and promoting beneficial metal-support interactions. The best-performing catalyst (3.75Ni+1.25Co-ScCeZr) achieved a good conversion rate of CH4 and CO2 at 46.8 %, and 60 % respectively after 330 minutes while maintaining good stability. The TGA and CO2-TPD analysis results show that the addition of Co to Ni reduces carbon formation, and increases the amount of strong basic sites and isolated O2- species, and the total amount of CO2 desorbed. These results collectively highlight the potential of cobalt-nickel catalysts for practical DRM applications and contribute to developing sustainable energy technologies.","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e202400086"},"PeriodicalIF":2.5,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11625958/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142615588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0