Chemphyschem最新文献_第7页

Magnetron Sputtering Formation of Germanium Nanoparticles for Electrochemical Lithium Intercalation. 磁控溅射形成用于电化学锂插层的锗纳米粒子。

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-01-02 Epub Date: 2024-11-08 DOI: 10.1002/cphc.202400594

Tommaso Pajola, Anika Padin, Benjamin E Blowers, Francesca Borghi, Alessandro Minguzzi, Emiliano Bonera, Alberto Vertova, Marcel Di Vece

{"title":"Magnetron Sputtering Formation of Germanium Nanoparticles for Electrochemical Lithium Intercalation.","authors":"Tommaso Pajola, Anika Padin, Benjamin E Blowers, Francesca Borghi, Alessandro Minguzzi, Emiliano Bonera, Alberto Vertova, Marcel Di Vece","doi":"10.1002/cphc.202400594","DOIUrl":"10.1002/cphc.202400594","url":null,"abstract":"In the drive towards increased lithium based battery capacity, germanium is an attractive material due to its very high lithium storage capacity, second only to silicon. The persistent down-side is the considerable embrittlement accompanying its remarkable volume expansion of close to 300 %. A proven method to accommodate for this lattice expansion is the reduction of the size towards the nanoscale at which the fracturing is prevented by \"breathing\". In this work we employed a novel magnetron sputtering gas aggregation nanoparticle generator to create unprecedented layers of well-defined germanium nanoparticles with sizes below 20 nm. The electrochemical lithium intercalation was monitored by a suite of techniques under which Raman spectroscopy, which provided clear evidence of the presence of lithium inside the germanium nanoparticles. Moreover, the degree of lattice order was measured and correlated to the initial phases of the lithium-germanium alloy. This was corroborated by electron diffraction and optical absorption spectroscopy, of which the latter provided a strong dielectric change upon lithium intercalation. This study of low lithium concentrations inside layers of well-defined and very small germanium nanoparticles, forms a new avenue towards significantly increasing the lithium battery capacity.","PeriodicalId":9819,"journal":{"name":"Chemphyschem","volume":" ","pages":"e202400594"},"PeriodicalIF":2.3,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142307198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling the Effect of Myo-inositol on Primitive Cell Models Derived from Fatty Acid. 揭示肌醇对脂肪酸原始细胞模型的影响

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-01-02 Epub Date: 2024-11-11 DOI: 10.1002/cphc.202400826

Meghna Ghosh, Pratyush Kiran Nandi, Nanigopal Bera, Nilmoni Sarkar

{"title":"Unveiling the Effect of Myo-inositol on Primitive Cell Models Derived from Fatty Acid.","authors":"Meghna Ghosh, Pratyush Kiran Nandi, Nanigopal Bera, Nilmoni Sarkar","doi":"10.1002/cphc.202400826","DOIUrl":"10.1002/cphc.202400826","url":null,"abstract":"Early forms of life on Earth were most likely not complex. Simple non-living molecules may have formed aggregates, orunderwent spontaneous complex organic reactions resulting in build-up of molecular complexity leading to origin of life. Protocell (hypothetical first live cell) models based on fatty acid self-assemblies have been used in many experiments. Sugars, amino acids and nucleic acids are the backbone of any living creature. Myo-inositol (InOH), is structurally similar to pyranose form of d-glucose. InOH not only has higher stability than simple sugars, but also not easily degraded under extreme conditions. Therefore, InOH would have persisted in the hostile environment of early Earth. Here, our objective is to study the effect of varying concentrations of InOH, a prebiotic sugar-like biomolecule, on the self-assemblies derived from oleic acid using solvation dynamics as a major experimental tool. We have demonstrated that InOH does indeed perturb the membrane of oleic acid/oleate vesicles, which is characterized by more negative zeta potential of vesicles, and faster solvation dynamics of the solvation probe C153. Overall, our results provide significant insight towards understanding the role of carbohydrate osmolytes in relation to protocell models.","PeriodicalId":9819,"journal":{"name":"Chemphyschem","volume":" ","pages":"e202400826"},"PeriodicalIF":2.3,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142342515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantifying Kinetically Relevant Species on Zr-SiO₂ Materials for MPV Reduction. 量化 Zr-SiO2 材料上与还原 MPV 有关的动力学物种。

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-01-02 Epub Date: 2024-11-11 DOI: 10.1002/cphc.202400690

Emily Chase, Justin Notestein

引用次数: 0

Single GAF Domain Phytochrome Exhibits a pH-Dependent Shunt on the Millisecond Timescale. 单个GAF结构域光敏色素在毫秒时间尺度上表现出ph依赖的分流。

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-01-02 DOI: 10.1002/cphc.202401022

Florian Trunk, Lisa Köhler, Tobias Fischer, Wolfgang Gärtner, Chen Song, Chavdar Slavov, Josef Wachtveitl

引用次数: 0

Quantitative Characterization of Fluorine-Centered Noncovalent Interactions in Crystalline Benzanilides. 晶体苯并苯胺中以氟为中心的非共价相互作用的定量表征。

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-01-02 Epub Date: 2024-11-08 DOI: 10.1002/cphc.202400724

Pradip Kumar Mondal, Rahul Shukla, Saurish Khandelwal, Kartikay Sharma, Shivani Gonde, Subha Biswas, Shubham Som, Deepak Chopra

{"title":"Quantitative Characterization of Fluorine-Centered Noncovalent Interactions in Crystalline Benzanilides.","authors":"Pradip Kumar Mondal, Rahul Shukla, Saurish Khandelwal, Kartikay Sharma, Shivani Gonde, Subha Biswas, Shubham Som, Deepak Chopra","doi":"10.1002/cphc.202400724","DOIUrl":"10.1002/cphc.202400724","url":null,"abstract":"Six isomeric molecules, featuring a minimum of three fluorine atoms on either the benzoyl or aniline side, have been synthesized, crystallized and characterized through single crystal X-ray diffraction (SCXRD). In addition, two other compounds, containing six fluorine atoms, three on each of the benzoyl and aniline side of the benzanilide scaffold have also been characterized through SCXRD. This current study aims to augment the capacity for hydrogen bond formation, specifically involving organic fluorine, by elevating the acidity of the involved hydrogens through the incorporation of highly electronegative fluorine atoms, in the presence of strong N-H⋅⋅⋅O=C H-bonds. Lattice energy calculations and assessment of intermolecular interaction energies elucidate the contributions of electrostatics and dispersion forces in crystal packing. The topological analysis of the electron density is characterized by the presence of bond critical points (BCPs) involving C-H⋅⋅⋅F and F⋅⋅⋅F contacts, thus establishing the bonding nature of these interactions which play a crucial role in the crystal packing in addition to the presence of traditional N-H⋅⋅⋅O=C H-bonds.","PeriodicalId":9819,"journal":{"name":"Chemphyschem","volume":" ","pages":"e202400724"},"PeriodicalIF":2.3,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Radiative Efficiency and Global Warming Potential of HCFC-132b. HCFC-132b 的辐射效率和全球升温潜能值。

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-01-02 Epub Date: 2024-12-04 DOI: 10.1002/cphc.202400632

Daniela Alvarado-Jiménez, Andrea Pietropolli Charmet, Paolo Stoppa, Nicola Tasinato

{"title":"The Radiative Efficiency and Global Warming Potential of HCFC-132b.","authors":"Daniela Alvarado-Jiménez, Andrea Pietropolli Charmet, Paolo Stoppa, Nicola Tasinato","doi":"10.1002/cphc.202400632","DOIUrl":"10.1002/cphc.202400632","url":null,"abstract":"Hydro-chloro-fluoro-carbons (HCFCs) are potent greenhouse gases which strongly absorb the infrared (IR) radiation within the 8-12 μm atmospheric windows. Despite international policies schedule their phasing out by 2020 for developed countries and 2030 globally, HCFC-132b (CH2ClCClF2) has been recently detected with significant atmospheric concentration. In this scenario, detailed climate metrics are of paramount importance for understanding the capacity of anthropogenic pollutants to contribute to global warming. In this work, the radiative efficiency (RE) of HCFC-132b is experimentally measured for the first time and used to determine its global warming potential (GWP) over 20-, 100- and 500-year time horizon. Vibrational- and rotational-spectroscopic properties of this molecule are first characterized by exploiting a synergism between Fourier-transform IR (FTIR) spectroscopy experiments and quantum chemical calculations. Equilibrium geometry, rotational parameters and vibrational properties predicted theoretically beyond the double-harmonic approximation are employed to assist the vibrational assignment of the experimental trace. Finally, FTIR spectra measured over a range of pressures are used to determine the HCFC-132b absorption cross section spectrum from 150 to 3000 cm-1, from which istantaneous and effective REs are derived and, in turn, used for GWP evaluation.","PeriodicalId":9819,"journal":{"name":"Chemphyschem","volume":" ","pages":"e202400632"},"PeriodicalIF":2.3,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142371106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Foams-To-Films: A Facile Approach Towards Space-Confined CVD Growth of MoS₂. 泡沫到薄膜：实现 MoS2 空间约束 CVD 生长的简便方法。

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-01-02 Epub Date: 2024-11-21 DOI: 10.1002/cphc.202400854

Taylor M Currie, Jesse Davalos Barrios, Moc Lan Nguyen, Laurene Tetard, Titel Jurca

{"title":"Foams-To-Films: A Facile Approach Towards Space-Confined CVD Growth of MoS2.","authors":"Taylor M Currie, Jesse Davalos Barrios, Moc Lan Nguyen, Laurene Tetard, Titel Jurca","doi":"10.1002/cphc.202400854","DOIUrl":"10.1002/cphc.202400854","url":null,"abstract":"2D materials have rapidly become the building blocks for the next generation of semiconducting materials and devices, with chemical vapor deposition (CVD) emerging as a prefered method for their synthesis. However, the predictable and reproducible growth of high quality, large 2D monolayers remains challenging. An important facet is controlling the local environment at the surface of the substrate - here, space-confinement techniques have emerged as promising candidates. We demonstrate that space-confined CVD growth using microstructured MoOx grown on Ni foam is an appealing approach for rapid growth of high quality MoS2 monolayers; a very important subset of 2D materials. This method eschews the use of powders which can be more difficult to control. By incorporation of a porous barrier in the Ni foam support, the rate of delivery of both the Mo and S source to the substrate is dampened, leading to coverage of large, high quality, mono-to-few layer triangular domains as confirmed by Raman and photoluminescence (PL) spectroscopies together with atomic force microscopy (AFM) height measurements.","PeriodicalId":9819,"journal":{"name":"Chemphyschem","volume":" ","pages":"e202400854"},"PeriodicalIF":2.3,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radiation and DNA Origami Nanotechnology: Probing Structural Integrity at the Nanoscale. 辐射与 DNA 折纸纳米技术：纳米级结构完整性探测。

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-01-02 Epub Date: 2024-11-20 DOI: 10.1002/cphc.202400863

João Ameixa, Leo Sala, Jaroslav Kocišek, Ilko Bald

{"title":"Radiation and DNA Origami Nanotechnology: Probing Structural Integrity at the Nanoscale.","authors":"João Ameixa, Leo Sala, Jaroslav Kocišek, Ilko Bald","doi":"10.1002/cphc.202400863","DOIUrl":"10.1002/cphc.202400863","url":null,"abstract":"DNA nanotechnology has emerged as a groundbreaking field, using DNA as a scaffold to create nanostructures with customizable properties. These DNA nanostructures hold potential across various domains, from biomedicine to studying ionizing radiation-matter interactions at the nanoscale. This review explores how the various types of radiation, covering a spectrum from electrons and photons at sub-excitation energies to ion beams with high-linear energy transfer influence the structural integrity of DNA origami nanostructures. We discuss both direct effects and those mediated by secondary species like low-energy electrons (LEEs) and reactive oxygen species (ROS). Further we discuss the possibilities for applying radiation in modulating and controlling structural changes. Based on experimental insights, we identify current challenges in characterizing the responses of DNA nanostructures to radiation and outline further areas for investigation. This review not only clarifies the complex dynamics between ionizing radiation and DNA origami but also suggests new strategies for designing DNA nanostructures optimized for applications exposed to various qualities of ionizing radiation and their resulting byproducts.","PeriodicalId":9819,"journal":{"name":"Chemphyschem","volume":" ","pages":"e202400863"},"PeriodicalIF":2.3,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142543954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Fe³⁺/Polyphenol Ratio in Iron-gall Ink on Superoxide Formation: Rationalizing Historic Recipes from a Kinetic Study. 从古代到 19 世纪的铁球墨配方的合理化。动力学研究。

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-01-02 Epub Date: 2024-11-09 DOI: 10.1002/cphc.202400859

Natércia Teixeira, João Avó, Hugo Cruz, Tânia Moniz, Maria Rangel, Victor de Freitas, João C Lima, Maria J Melo, Fernando Pina

引用次数: 0

Green Power: The Role of Plant-Based Biochar in Advanced Energy Storage. 绿色能源：植物生物炭在先进储能中的作用。

IF 2.3 3区化学

Chemphyschem Pub Date : 2025-01-02 Epub Date: 2024-11-18 DOI: 10.1002/cphc.202400569

Shilpa Simon, Parvathy Harikumar, P B Sreeja

引用次数: 0