jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: André H. Gröschel | Alex J. Plajer | Meike N. Leiske | Johannes C. Brendel
Source: Journal of Polymer Science (article, 2025-09-12)
Field: Chemistry — Organic Chemistry

Editorial: Celebrating 50 Years of Macromolecular Chemistry and Polymer Research at the University of Bayreuth In November 2025, the University of Bayreuth (UBT) will commemorate its 50th anniversary.Over the past five decades, UBT has become a hub of academic excellence in northern Bavaria, among others recognized for its contributions to macromolecular chemistry and polymer research.This special issue is dedicated to the research on Macromolecular Chemistry that resonates through the many research groups that worked at UBT and spread from UBT into the world.This editorial takes a retrospective look at the milestones, influential figures, and scientific achievements that have shaped the university's standing in the macromolecular community and gives a glimpse into the contributions to this special issue.A Vision Right From the Start: The University of Bayreuth was founded in 1975 with the ambitious goal of establishing a research-oriented institution that would excel in the sciences and engineering.Right from the start, research on polymers and Macromolecular Chemistry was envisioned as a cornerstone of the university's scientific mission and declared as one of four key research areas.The intention was to foster interdisciplinary research that bridged the gap between chemistry, physics, and engineering, guided by a clear understanding of the importance of polymer chemistry for modern science and technology. Macromolecule ; Polymer Advanced Polymer Synthesis and Characterization ; History and advancements in chemistry ; Various Chemistry Research Topics
Authors: Dilges Baskin
Source: Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi (article, 2025-12-24)
Field: Chemistry — Analytical Chemistry

Hierarchical MnSb₂O₆ Particles for Dispersive Solid-Phase Extraction of Co(II) from Wastewater by Flame Atomic Absorption Spectrometry The efficacy of hierarchical MnSb₂O₆ magnetic flower-shaped particles (MFSP) as adsorbents for the determination of metal ions using flame atomic absorption spectrometry (FAAS) was evaluated through dispersive solid-phase extraction (DSPE) in this study. Key parameters, including pH, sorbent amount, mixing type and duration, eluent type and volume, and sorbent type (magnetic and non-magnetic) were optimized to improve DSPE–FAAS performance. The MFSP–DSPE–FAAS method demonstrated a dynamic linear range of 5.0–100 ng mL⁻¹ for Co²⁺ ions with a correlation coefficient of 0.9996. Moreover, the magnetic sorbent–DSPE–FAAS method exhibited an 86-fold increase in sensitivity for Co²⁺ compared to FAAS alone, underscoring the significant contribution of the hierarchical magnetic flower-shaped particles in achieving selective and efficient adsorption. A recovery study using a wastewater (domestic effluent) sample from the General Directorate of VASKİ (Van Water and Sewerage Administration) yielded recoveries between 94% and 108%. This study highlights, for the first time, the combined use of magnetic MnSb₂O₆ and non-magnetic SbO₂ flower-shaped particles to reveal the role of magnetic properties in DSPE performance and to validate their applicability in real wastewater analysis. The developed method not only addressed the challenges posed by complex environmental matrices but also demonstrated the crucial role of magnetic properties in facilitating efficient metal ion adsorption. Sorbent ; Wastewater ; Extraction (chemistry) ; Analytical Chemistry (journal) ; Adsorption ; Magnetic nanoparticles ; Magnetic separation ; Atomic absorption spectroscopy ; Absorption (acoustics) Analytical chemistry methods development ; Adsorption and biosorption for pollutant removal ; Arsenic contamination and mitigation
Authors: Deniz Doğan
Source: Bitlis Eren Üniversitesi Fen Bilimleri Dergisi (article, 2025-09-30)
Field: Materials Science — Polymers and Plastics

Photocatalytic Properties of Chitosan-Coated PESA Spheres Containing Gallium(III) Nitrate: Synthesis and Characterization In this study, the photocatalytic effect of Chitosan (Cht) -Coated polyanetholsulfonic acid (PESA) Spheres Containing Gallium(III) Nitrate (Ga(NO3)3) on methylene blue (MB), a cationic dye, was investigated. The spheres were synthesized by dropwise addition of a chitosan solution to a PESA-Ga(III) solution prepared in a sodium hydroxide (NaOH) solution. It is known that the morphological properties of spheres change in the presence of metal. For this purpose, the surface morphology was determined by Scanning Electron Microscopy (SEM). Functional group analysis was determined using Fourier Transform Infrared (FTIR) Spectrometry. The concentration of Gallium ions remaining in the solution at the end of the reaction was determined by Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) analysis. A UV-C tube lamp was used to photocatalytically degrade the methylene blue dye. The dye degradation changes were then analyzed in a UV-VIS spectrophotometer. Furthermore, Tauc’s formula determined the band gaps with the help of Chitosan-Coated PESA Spheres Containing Ga(NO3)3 (PESA- Ga(III)/Cht) and Chitosan-Coated PESA Spheres (PESA/Cht) UV spectra. It was observed that the photocatalytic effect increased with the incorporation of Ga(NO3)3 into the polymer structure. Methylene blue ; Photocatalysis ; Sodium hydroxide ; Scanning electron microscope ; SPHERES ; Fourier transform infrared spectroscopy ; Cationic polymerization ; Potassium hydroxide ; Visible spectrum Conducting polymers and applications ; Advanced Photocatalysis Techniques ; Gas Sensing Nanomaterials and Sensors
Authors: Abubakar H. Musa | Shuaibu S. Musa | M. Alhassan | Olalekan John Okesanya | Abubakar S. Ishak | Auwal R. Auwal | Hassan O. Alaka | Zhinya K. Othman | Adamu M. Ibrahim | Francis AR. Sy | Mohamed M. Ahmed | M.B.N. Kouwenhoven | Don Eliseo Eliseo Lucero-Prisno
Source: Narra X (article, 2025-12-22)
Field: Materials Science — Materials Chemistry

Role of nanotechnology in climate change mitigation: Opportunities, challenges, and future directions Climate change, recognized as one of the most critical global public health emergencies, has led to extreme weather events and caused thousands of deaths annually, particularly in underserved areas due to limited financial resources. Nanotechnology, with its unique quantum properties, enhanced surface area, and heightened reactivity, has emerged as a promising tool for climate crisis management. The aim of this study was to explore the role of nanotechnology in mitigating climate change, offering insights into the opportunities and challenges associated with its deployment. Nanotechnology has transformed the renewable energy field by advancing sustainability, improving efficiency, and reducing costs. Nanomaterial also enhances the effectiveness of carbon capture and conversion processes, providing a viable path in the fight against climate change. Additional opportunities include lowering greenhouse gas emissions, improving energy conservation, and enabling cleaner technologies. Furthermore, nanotechnology holds the potential to revolutionize the mitigation of air, water, and land pollution, contributing to a more climate-resilient environment and supporting global climate goals. Despite these opportunities, its integration into climate change mitigation poses significant obstacles. Concerns include the generation of reactive oxygen species that may induce cellular dysfunction and carcinogenesis, as well as challenges related to sophisticated manufacturing processes, high material costs, and inadequate policy frameworks. While nanotechnology demonstrates significant potential in mitigating the effects of climate change, future studies should focus on comprehensive safety evaluations, cost-effective production methods, and strategies to minimize long-term environmental and health effects to ensure its sustainable and responsible application. Climate change ; Greenhouse gas ; Climate change mitigation ; Renewable energy ; Applications of nanotechnology ; Global warming ; Societal impact of nanotechnology ; Sustainable development Nanoparticles: synthesis and applications ; COVID-19 impact on air quality ; Climate Change and Health Impacts
Authors: Hossein Ghafuri | Fariba Gholipour | Peyman Hanifehnejad | Fatemeh Bijari
Source: Heliyon (article, 2025-01-21)
Field: Chemistry — Organic Chemistry

Cherry tree gum-derived silver/microporous carbon: Reduction of nitroaromatic compounds by microwave-assisted reaction In this study, a silver/microporous carbon (Ag@MC) nanocomposite was synthesized using cherry tree gum as a carbon precursor via a hydrothermal method. The catalytic performance of Ag@MC was evaluated for the reduction of nitroaromatic derivatives under solvent-free and microwave-assisted conditions, achieving yields higher than 90 % in just 5 min, significantly shorter than many comparable studies. Comprehensive characterization confirmed the structure and stability of Ag@MC, with silver nanoparticles effectively trapped within its microporous matrix. The nanocomposite demonstrated excellent reusability, maintaining high catalytic activity over six cycles, thereby adhering to green chemistry principles. These findings highlight the potential of using sustainable natural polymers for high-efficiency catalytic applications. Microporous material ; Carbon fibers ; Reduction (mathematics) ; Organic chemistry ; Chemistry ; Microwave ; Materials science ; Nuclear chemistry ; Chemical engineering ; Mathematics ; Engineering ; Composite material ; Composite number Nanomaterials for catalytic reactions ; Ammonia Synthesis and Nitrogen Reduction ; Advanced Photocatalysis Techniques
Authors: Jameela Karol | Charles Otieno Ogolla | Mohsen Sotoudeh | Manuel Dillenz | Maciej Tobis | Ellen Vollmer | Yoga Trianzar Malik | Maider Zarrabeitia | Axel Groß | Benjamin Butz | Simon Fleischmann
Source: ChemRxiv (preprint, 2025-05-20)
Field: Materials Science — Polymers and Plastics

Nanoconfinement geometry of pillared V2O5 determines electrochemical ion intercalation mechanism, storage sites and diffusion pathways Improving electrochemical ion intercalation capacity and kinetics in layered host materials is a critical challenge to further develop lithium-ion batteries, as well as emerging cell chemistries based on ions beyond lithium. Modification of the nanoconfined interlayer space within host materials by synthetic pillaring approaches has emerged as a promising strategy, however, the resulting structural properties of host materials, host-pillar interaction, as well associated electrochemical mechanisms remain poorly understood. Herein, a series of bilayered V2O5 host materials pillared with alkyldiamines of different lengths is systematically studied, resulting in tunable nanoconfinement geometry with interlayer spacings in the range of 1.0-1.9 nm. We discover that the electrochemical Li+ intercalation capacity is increased from approx. 1 to 1.5 Li+ per V2O5 in expanded host materials due to the stabilization of new storage sites. The intercalation kinetics improve with expansion due to a transition in Li+ diffusion pathways from 1D to 2D diffusional networks. Operando X-ray diffraction reveals a transition of the intercalation mechanism from solid-solution Li+ intercalation in V2O5 hosts with small and medium interlayer spacings, to solvent co-intercalation in V2O5 with the largest interlayer spacing. The work systematically reveals the impact of nanoconfinement geometry within bilayered V2O5 on the resulting Li+ intercalation metrics and mechanisms, providing insights into both the microstructure and associated electrochemistry of pillared materials. Intercalation (chemistry) ; Diffusion ; Electrochemistry ; Mechanism (biology) ; Ion ; Materials science ; Chemical physics ; Chemical engineering ; Nanotechnology ; Geometry ; Chemistry ; Inorganic chemistry ; Electrode ; Thermodynamics ; Physical chemistry ; Physics ; Engineering ; Organic chemistry ; Mathematics Transition Metal Oxide Nanomaterials ; Gas Sensing Nanomaterials and Sensors ; Electrocatalysts for Energy Conversion
Authors: Bingzheng Yuan | Luyao Tian | Jie Bai | Yu Zhang | Yingyuan Peng | Jing Cui | Zhi Fan | Minjie Guo | Yingcheng Li | Bowen Cheng
Source:  (article, 2025-11-20)
Field: Materials Science — Polymers and Plastics

Hydrogen-Bonded Fluorinated Poly(amide imide)s with High Refractive Indices and Transparency for Optical Communications A series of fluorinated poly(amide imide)s (FPAIs) were synthesized using a diamine monomer, 2,2’-bistrifluoromethoxy-1,1’-biphenyl-4,4’-bisaminobenzamide (ABTFMOB), which features both amide bonds and −OCF 3 groups, achieving a critical balance betwe Refractive index ; Transparency (behavior) ; Optical communication ; High-refractive-index polymer ; Balance (ability) ; Diamine Synthesis and properties of polymers ; Organic Light-Emitting Diodes Research ; Nonlinear Optical Materials Research
Authors: Muhammad Abdel Hasan Shallal | Weaam A. Salman | Athmar Ali Khadim
Source: Journal of Electrochemical Science and Engineering (article, 2025-12-31)
Field: Chemistry — Electrochemistry

Enhanced anodic stripping determination of Cd(II) using NH&lt;sub&gt;2&lt;/sub&gt;-functionalized MOF and GO-modified glassy carbon electrode In this work, an amino-functionalized metal-organic framework (NH2-functionalized MIL-101(Fe) MOF) and graphene oxide (GO) were employed to modify a glassy carbon electrode (GCE) to prepare a simple and sensitive electrochemical sensing platform for detecting Cd(II) ions in drinking water samples. It is important to note that the high surface area, porous structure, and amino-functional groups in the structure of MIL-101(Fe) MOF can signi­ficantly facilitate the enrichment and accumulation of Cd(II) ions at the GCE surface, while the utilization of GO enhances the electrochemical performance and conductivity of the modified electrode. Due to these facts, the NH2-functionalized MIL-101(Fe)/GO-modified GCE exhibited good ability for detecting Cd(II) in comparison with the unmodified GCE. The sensing capability of the NH2-functionalized MIL-101(Fe)/GO-modified GCE was evaluated using differential pulse anodic stripping voltammetry under optimized conditions. Based on quantitative measurements, the as-prepared sensing platform was capable of detecting Cd(II) with a detection limit of 0.004 µM and a linear response range of 0.01 to 12.0 µM. Importantly, the ability of NH2-functionalized MIL-101(Fe)/GO-modified GCE to determine Cd(II) in the real drinking water sample further confirms the practicability of the prepared sensing platform. These results demonstrate the feasibility of a simple, cost-effective electrochemical sensing platform for the sensitive determination of Cd(II) ions, contributing to environmental protection and human health. Detection limit ; Stripping (fiber) ; Anodic stripping voltammetry ; Electrochemistry ; Graphene ; Electrode ; Anode ; Electrochemical gas sensor Electrochemical Analysis and Applications ; Electrochemical sensors and biosensors ; Analytical Chemistry and Sensors
Authors: Sk Mujaffar Hossain | D. H. Kim | Jaehyun Park | Seung-Cheol Lee | Satadeep Bhattacharjee
Source: ArXiv.org (preprint, 2025-04-29)
Field: Materials Science — Materials Chemistry

Tunable Thermal Expansion in Functionalized 2D Boron Nitride: A First-Principles Investigation This study investigates the thermal expansion coefficient of two-dimensional (2D) functionalized boron nitride (f-BN) materials using first-principles density functional theory (DFT). Two-dimensional materials, particularly hexagonal boron nitride (h-BN), have attracted significant attention due to their exceptional mechanical, thermal, and electronic properties. However, the influence of functionalization on the thermal expansion behavior remains largely unexplored. In this work, DFT calculations are employed to analyze how different functionalized forms of h-BN impact the thermal expansion of BN sheets. Density functional perturbation theory (DFPT) and the quasiharmonic approximation (QAH) are utilized to determine the thermal expansion coefficient over a range of temperatures. The results reveal that functionalization induces notable modifications in the in-plane thermal expansion of BN, affecting material stability and suggesting potential applications in nanoelectronics and thermal management. This investigation provides critical insights into the tunability of the thermal properties of 2D BN, underscoring its suitability for next-generation flexible and high-performance devices. Thermal expansion ; Boron nitride ; Density functional theory ; Thermal stability ; Nanoelectronics ; Thermal ; Surface modification Thermal properties of materials ; Thermal Expansion and Ionic Conductivity ; Boron and Carbon Nanomaterials Research
Authors: Jongbum Won | Tae Young Kim | Minwoo Lee | Daniel W. Davies | Giyeok Lee | Aron Walsh | Aloysius Soon | Jong‐Young Kim | Wooyoung Shim
Source: Nature Communications (article, 2025-07-01)
Field: Materials Science — Materials Chemistry

Mapping cation-eutaxy ternary with a phenomenological model Predicting the stability of ternary compounds poses a significant challenge due to the complex interplay of atomic features. Existing approaches often struggle to integrate these parameters into a unified framework, particularly for cation-eutaxy ABX ternary systems, where subtle compositional and bonding interactions govern the dimensionality and stability of III‒V networks. To address this challenge, we developed a phenomenological model that combines electronegativity, ionic size, and charge to predict the stability and classify cation-eutaxy structures within [A‒III‒V] chemical systems. Our model introduces stoichiometry-weighted descriptors to evaluate the relative covalent nature of III‒V and A‒V bonds, bridging gaps left by traditional methodologies. Validation through computational high-throughput screening and the Materials Project database demonstrated its accuracy, successfully classifying 35 known cation-eutaxy ABX compounds and identifying 9 previously unreported candidates. As predicted by the model, experimental synthesis of K<sub>2</sub>In<sub>2</sub>P<sub>3</sub> and Na<sub>2</sub>In<sub>2</sub>As<sub>3</sub> confirmed the feasibility and predictive reliability of the proposed framework. While further refinements are needed, this study highlights the potential of integrating intuitive atomic features into a model for predicting cation-eutaxy ternary stability, which could lead to novel layered materials. Ternary operation ; Phenomenological model ; Computer science ; Computational biology ; Physics ; Biology ; Condensed matter physics Machine Learning in Materials Science ; Advanced Memory and Neural Computing ; Catalytic Processes in Materials Science
Authors: Amirah Syakirah Zahirulain | Fauziah Marpani | Nik Raikhan Nik Him | Muhammad Shafiq Mat Shayuti | Vivek Sharma | Norazah Abd Rahman
Source: Jurnal Kejuruteraan (article, 2025-10-30)
Field: Chemistry — Inorganic Chemistry

Influence of Different Solvents on the Structure of ZIF-67 for Enzyme Immobilization Matrices Metal-organic framework (MOF) is a crystalline structure which has high porosity and surface area. MOFs’ design and functionality are versatile and stem from limitless combination of metals and organic linkers, which has proven stability in processes operated at high pH and temperature and resistant to various chemicals. These features are effective in biocatalysis as enzymes need protection from harsh environments. Nevertheless, during the synthesis of Enzyme-Metal organic complexes (E-MOF), the process must be designed in a delicate way such as avoiding harsh solvent (methanol) and room temperature synthesis, to preserve protein microenvironment. The study is aimed at analyzing the effect of different solvents; ultrapure water (which consists only H+ and OH- ions) and methanol towards ZIF-67 morphology. ZIF-67(W) shows leaf-like morphology with crystal size in the range of 10-16μm while ZIF-67(M) shows rhombic dodecahedron morphology with crystal size in the range of 200-400nm. It was found that ZIF-67(M) has better thermal stability compared to ZIF-67(W). The relationship between the different solvents used to synthesize ZIF-67 and in-situ enzyme encapsulation is discussed by considering the feasibility of ZIF-67 synthesis with water as an eco-friendly solvent with good characteristics. Preliminary result showed that more than 90% of methylene blue can be degraded by laccase@ZIF-67(W). Ultrapure water ; Solvent ; Thermal stability ; Dodecahedron ; Biocatalysis ; Porosity ; Methanol ; Immobilized enzyme Metal-Organic Frameworks: Synthesis and Applications ; Layered Double Hydroxides Synthesis and Applications ; Advanced Nanomaterials in Catalysis
Authors: Uğur Çağlayan
Source: Sakarya University Journal of Science (article, 2025-10-21)
Field: Materials Science — Materials Chemistry

Effect of Nickel on CO Conversion Over Cordierite-Supported Bi-Metallic Pd-Ni Catalysts This study focused on the preparation and characterization of Pd-Ni bimetallic catalysts supported on cerium-coated cordierite for carbon monoxide oxidation in a batch system. Using techniques such as XRD, FTIR, SEM/EDS, and BET, we confirmed successful metal loading and strong interactions between the metals and the support. The BET results showed that catalysts with balanced Pd and Ni ratios, especially Ni50, had larger surface areas, likely due to synergistic effects. Catalytic tests carried out at 300 °C demonstrated that these bimetallic catalysts performed nearly as well as the pure Pd catalyst in converting CO, while also benefiting from the inherent activity of the cerium-coated support. Overall, this study suggests that combining Pd with Ni can reduce the amount of precious metal needed without sacrificing efficiency, pointing to a more cost-effective solution for emission control applications. Bimetallic strip ; Catalysis ; Carbon monoxide ; Nickel ; Cordierite ; Metal ; Carbon fibers ; Palladium Catalytic Processes in Materials Science ; Catalysts for Methane Reforming ; Catalysis and Hydrodesulfurization Studies
Authors: Yilin Zhang | Zhixiang Dai | Zihan Tan | Hongli Yang | Chao Xu | Shengyang Zhou | Zhong‐Ming Li
Source: Chemical Science (article, 2025-12-17)
Field: Materials Science — Materials Chemistry

Unveiling the electron–phonon coupling anisotropy in 2D covalent organic frameworks Covalent organic frameworks (COFs) are emerging organic semiconductors with potential for energy conversion and storage. However, their electronic structure and electron-phonon interactions remain poorly understood. This issue is particularly important in 2D COFs, where covalent and van der Waals interactions along orthogonal directions manifest intrinsic anisotropy. In this work, six 2D COFs with varied bond linkages, stacking patterns, and side-group conjugation were synthesized to investigate their electron-phonon interaction properties. The results show that electron-phonon coupling (EPC) exhibits obvious direction dependence. Strong EPC is observed along the interlayer direction, whereas negligible momentum exchange occurs along the in-plane direction. A positive correlation between thermal conductivity and EPC strength was recognized, in contrast to the behavior of conventional semiconductors. Further analysis confirms that interlayer EPC hardens phonon frequencies and promotes in-plane acoustic phonon bunching, thereby enhancing thermal transport. A proof-of-concept study using a highly oriented COF film revealed extreme transport anisotropy. The thermal conductivity difference between perpendicular directions approaches two orders of magnitude, while the in-plane value reaches 20 W m<sup>-1</sup> K<sup>-1</sup> as determined by the laser flash method. These findings provide fundamental insight into the transport mechanism of 2D COFs and highlight their potential as efficient thermal conductors. Stacking ; Covalent bond ; Phonon ; Thermal conductivity ; van der Waals force ; Anisotropy ; Coupling (piping) ; Semiconductor Covalent Organic Framework Applications ; Thermal properties of materials ; Graphene research and applications