jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: Wei Hu | Ruiqi Liu | Yue Zhu | Chao Wang
Source: RSC Advances (article, 2026-01-01)
Field: Materials Science — Materials Chemistry

Molten salt-directed catalytic synthesis of room-temperature ferromagnetic transition-metal nitride nanosheets The next generation of low-power electronic/spintronic devices based on two-dimensional (2D) magnetic materials has great application prospects. However, so far, the numbers of intrinsic room-temperature magnetic 2D materials is limited. Here, we report a simple and effective three-step molten salt-directed catalytic method for obtaining intrinsic room-temperature ferromagnetic gamma-Mo<sub>2</sub>N (γ-Mo<sub>2</sub>N) nanosheets. The γ-Mo<sub>2</sub>N nanosheets with high crystallization and ultra-thin 2D layered structure characteristics show obvious ferromagnetism and Curie temperature (<i>T</i> <sub>c</sub>) up to about 360 K. Meanwhile, ICP-AES measurement excludes the possibility of ferromagnetic impurities. Extensive synchrotron radiation X-ray absorption fine structure (XAFS) spectra characterizations confirm the bonding configuration of Mo-N coordination around Mo atoms as well as the structural stability of the samples. Detailed spin-polarized density functional theory (DFT) calculations reveal that ferromagnetism of γ-Mo<sub>2</sub>N nanosheets is mainly contributed by 4d electrons of Mo atoms with itinerant electron characteristics. This work highlights γ-Mo<sub>2</sub>N nanosheets as a promising intrinsic room-temperature ferromagnetic material for the development of spintronics or spin-based electronics. Ferromagnetism ; Curie temperature ; Spintronics ; Ferromagnetic material properties ; Synchrotron radiation ; Nitride ; Density functional theory ; Crystallization MXene and MAX Phase Materials ; Boron and Carbon Nanomaterials Research ; 2D Materials and Applications
Authors: Lantian Zhang | He‐Qi Zheng | Wenqian Cao | Yuanjing Cui
Source: The Chemical Record (article, 2026-02-01)
Field: Chemistry — Inorganic Chemistry

Recent Advancements in Metal–Organic Framework‐Based Photocatalysts for Environmental Remediation The rapid progression of industrialization has generated substantial environmental deterioration, posing significant threats to public health. Developing efficient and cost-effective strategies to combat environmental pollution is of paramount importance. Metal-organic frameworks (MOFs) have recently emerged as a versatile photocatalytic platform, distinguished by their structurally tunable porosity, exceptional light-harvesting capacity, and superior charge separation efficiency. In particular, the intrinsically crystalline 3D structures of MOFs, characterized by highly ordered coordination networks and well-defined pore architectures, provide stable channels for molecular transport and endow the spatial organization of catalytically active sites. This review systematically summarizes the fundamental mechanisms and recent progress in MOF-based photocatalysis for environmental remediation, focusing on the degradation of organic pollutants, decomposition of antibiotics, and reduction of toxic heavy metal ions. Finally, current challenges and prospects in the field are critically discussed, providing a perspective for the rational design of high-performance MOF photocatalysts. Environmental remediation ; Environmental pollution ; Photocatalysis ; Industrialisation ; Environmental degradation ; Metal-organic framework Metal-Organic Frameworks: Synthesis and Applications ; Advanced Photocatalysis Techniques ; Advanced Nanomaterials in Catalysis
Authors: Rajahmed A. Majid Sugur Dudhagi Nikhil Ningappa | Sandeep Suryakant Dulange | Khandagale Poonam Santosh Saniya Sikander Pathan
Source: International Journal of Advanced Research in Science Communication and Technology (article, 2026-03-01)
Field: Materials Science — Polymers and Plastics

Investigating Self-Healing Polymer Nanocomposites with Filler Effect Despite their versatility, polymers frequently lack the barrier qualities, mechanical strength, or thermal stability needed for high-performance applications. The development of polymer nanocomposites is a sophisticated solution to this constraint. Small amounts (usually 1–5% weight percentage) of nanoscale fillers—such as carbon nanotubes, graphene, silica, clay, and metal oxide nanoparticles—are added to a polymer matrix to create these materials. The nanoparticles' extraordinarily high surface area-to-volume ratio and their special interactions with the polymer chains are what make nanocomposites so magical. This frequently results in a synergistic improvement of attributes that surpasses what could be accomplished with straightforward additive effects or macroscopic fillers. It is possible to greatly enhance characteristics such as stiffness, tensile strength, electrical and thermal conductivity, and gas barrier performance. The "filler effect" describes the significant impact that precisely chosen and engineered nanoparticles have on the healing process, even though self-healing mechanisms in polymers can be extrinsic (such as embedded microcapsules, vascular networks) or intrinsic (such as dynamic covalent bonds, supramolecular interactions). This impact enables, accelerates, or enhances the self-repair capabilities rather than merely boosting strength. Innovation in material science has been fueled by the unrelenting search for materials with increased durability, lower maintenance requirements, and improved safety. Self-healing materials—substances that, like biological systems, can repair damage on their own—are among the most promising developments. Polymer nanocomposites are unique in this fascinating field, especially when their capacity for self-healing is deliberately boosted by the "filler effect." Conventional materials deteriorate with time as a result of environmental exposure, wear, and fatigue. Failure eventually results from the accumulation of cracks, microfractures, and other types of damage. In crucial applications including aerospace, automotive, electronics, and biomedical implants, this presents safety issues and mandates expensive repairs or early replacement. Self-healing materials provide a ground-breaking technology that increases system sustainability and dependability while decreasing waste and prolonging product lifespan. Nanocomposite ; Polymer ; Polymer nanocomposite ; Thermal stability ; Nanoparticle ; Ultimate tensile strength ; Nanoscopic scale Polymer composites and self-healing ; Polymer Nanocomposites and Properties ; Lubricants and Their Additives
Authors: Ziyue Zeng | Chenyang Wang | Mingjun Sun | Dong Liu | Donghong Zhang | Song He | Zijia Liang | Yushen Ma | Yile Zhang | Ling Li | Xin Tian | Mengqi Zeng | Mingyue Ding | Feng Ding | Lei Fu
Source: Nature Communications (article, 2026-03-13)
Field: Materials Science — Materials Chemistry

Liquid metal dispersed single-atom catalyst with high-temperature stability Single-atom catalysts (SACs) enable greener and more economically sustainable chemical production by significantly improving thermocatalysis efficiency and selectivity through maximized atom utilization and highly homogeneous metal coordination environments. Unfortunately, SACs are fundamentally constrained by the stability owing to the severe aggregation of single atoms, especially under the high-temperature thermocatalysis operations, which compromises the overall catalytic performance. Here, we report a synthetic strategy to realize the highly thermal-stable SACs resistance to sintering at harsh conditions through harnessing the inherent metal affinity and fluidity of liquid metal. A stable liquid metal-active metal interaction is formed, profiting from the superior metal affinity of liquid metal. Combined with the fluidity of liquid metal, active metal atoms can move but remain confined to the liquid metal as the metallic single-atom state at high temperatures. This catalyst exhibits outstanding thermal durability for ethane dehydrogenation, sustaining stable operation for over 100 h at 650 °C with an impressive ethylene selectivity of 98%. The strategy of constructing stable metal-metal interactions by utilizing the inherent metal affinity and dynamic fluidity of liquid metal will pave a practical way for the design of highly thermal-stable SACs. Catalysis ; Metal ; Liquid metal ; Chemical stability ; Thermal stability Catalytic Processes in Materials Science ; Advanced Materials Characterization Techniques ; Ammonia Synthesis and Nitrogen Reduction
Authors: Ceren Orak
Source: Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi (article, 2026-01-14)
Field: Materials Science — Materials Chemistry

Waste-to-energy insight: Coupled photocatalytic amoxicillin degradation and hydrogen evolution with NiFe-LDH In this study, a nickel–iron layered double hydroxide (NiFe-LDH) photocatalyst was synthesized via a co-precipitation method and applied for the simultaneous degradation of amoxicillin (AMX) and hydrogen (H2) generation under visible light irradiation. NiFe-LDH was characterized by SEM, FTIR, XRD, and BET analyses, confirming its layered structure, homogeneous elemental distribution, and a specific surface area of 7.56 m2/g. The photocatalytic performance of NiFe-LDH was systematically evaluated by varying solution pH, catalyst loading, and initial AMX concentration. The optimal AMX degradation (~90%) and hydrogen evolution (58.2 μmol) were achieved at pH 7 with a catalyst loading of 2 g/L and an initial AMX concentration of 5 ppm. Total organic carbon (TOC) and chemical oxygen demand (COD) removal efficiencies reached 65.8% and 84.9%, respectively, under these conditions. The results demonstrate that NiFe-LDH exhibits a promising dual functionality in pollutant mineralization and clean energy production, offering a sustainable waste-to-energy pathway for water treatment applications. Photocatalysis ; Catalysis ; Degradation (telecommunications) ; Mineralization (soil science) ; Hydrogen production ; Water treatment ; Hydroxide ; Visible spectrum Layered Double Hydroxides Synthesis and Applications ; Advanced Photocatalysis Techniques ; Advanced oxidation water treatment
Authors: Abdelmadjid Guerram | Bilal Khaled | Salah Eddine Laouini | Abderrahmane Bouafia | Ilham Ben Amor | Djamel Barani | Imen Zaghbib | Mahmood M. S. Abdullah | Hamad A. Al-Lohedan | Johar Amin Ahmed Abdullah
Source: Journal of Sol-Gel Science and Technology (article, 2026-04-10)
Field: Materials Science — Materials Chemistry

MgO and MgO/char nanocomposites as efficient catalysts for the removal of thiophene and malachite green from aqueous systems MgO nanoparticles were synthesized by precipitation-calcination: 0.1 M Mg(NO₃)₂·6H₂O was precipitated with 0.5 M NaOH to pH 10–11, aged for 2 h, washed, dried at 100 °C, and calcined at 450 °C for 3 h. The MgO/char nanocomposite was fabricated by ultrasonically dispersing biomass-derived activated carbon (0.5 g in 100 mL water for 30 min), adding pre-synthesized MgO nanoparticles, stirring, aging for 2 h, washing, and drying at 100 °C. Analytical-grade chemicals and deionized water were used. Materials were characterized by UV–Vis (band-edge absorption at ~307 nm), FTIR, XRD (cubic periclase MgO; crystallite sizes 9.71 ± 1.39 nm for pure MgO and 19.95 ± 1.60 nm for composite), XPS (O 1 s: 530.10 eV in MgO vs. 531.58 eV in composite; Mg 2p: 51.08 eV vs. 52.30 eV), SEM (reduced aggregation in composite), and EDX (confirmed Mg, O, and C presence). Photocatalytic tests under simulated sunlight (0.05 g catalyst in 100 mL pollutant solution) showed thiophene degradation of 99.24% (MgO) and 100% (composite) in 90 min. Malachite green degradation reached 99.91% (MgO) but only 88.92% (composite) in 140 min, reflecting adsorption dominance in the composite. Experiments were triplicated with mean ± standard deviation reported. Malachite green ; Catalysis ; Nanocomposite ; Aqueous solution ; Adsorption ; Crystallite ; Calcination ; X-ray photoelectron spectroscopy Magnesium Oxide Properties and Applications ; Zeolite Catalysis and Synthesis ; Mesoporous Materials and Catalysis
Authors: Ayesha Kausar
Source: Journal of Polymer Science and Engineering (article, 2026-03-23)
Field: Materials Science — Materials Chemistry

Carbon nano-onions based polymeric nanocomposites: Advancements in designs—to—practical applications Carbon nano-onions are unique, tiny, multilayered carbonaceous nanoparticles having distinct structural, microstructural, and a range of physical characteristics and high-tech uses. Similar to other carbonaceous nanoparticles (graphene, carbon nanotubes), carbon nano-onions, as well as modified carbon nano-onions, have been considered as valuable nanofillers for macromolecules. Along these lines, the present overview refers to the scientific impact of reinforcing carbon nano-onions in polymeric matrices. For this purpose, this manuscript has been systematically categorized into an initial section addressing fundamentals of carbon nano-onions, followed by a major section regarding design, structure-property, and performance aspects of carbon nano-onion nano-reinforced polymeric matrices (conducting, thermoplastics, thermosets). Subsequent review sections unfold promising application zones, challenges, and the future of polymer/carbon nano-onions hybrids. According to the literature, numerous facile and efficient routes (in situ, electrochemical, solution, solvent casting, curing) have been used for fabricating these nanomaterials. Herein, adding carbon nano-onions was noticed to valuably enhance the morphological, physical, and applied scope of the ensuing nanocomposites. Owing to design diversities, a myriad of technological deployments have been noticed for polymer/carbon nano-onions, including space engineering-to-energy production/storage/sensing devices and catalysis. Nevertheless, delimited systematic scientific studies have been performed so far regarding different types of polymer/carbon nano-onions and their applied specifications. Henceforth, focused and continuous research efforts by the field scientists/engineers seemed to be indispensable for overcoming the underlying challenges to attain next-generation industrial-scale carbon nano-onions derivative nanomaterials. Carbon fibers ; Carbon Nanoparticles ; Scope (computer science) ; Carbon nanotube ; Special section Carbon Nanotubes in Composites ; Electromagnetic wave absorption materials ; Graphene research and applications
Authors: Chao Feng | Sixu Li | Yan Zhao | Tianrui Zhai
Source: RSC Advances (article, 2026-01-01)
Field: Materials Science — Materials Chemistry

A systematic review on competitive screening and independent variable unification focused on PAA structural parameter calculation formulas in mild anodization Porous anodized aluminium oxide (PAA) has wide and important applications in photonic crystals, energy science, nanotemplates, life science, medicine, aerospace and other scientific research and industrial manufacturing fields. The decisive factors determining its application value and specific performance are its own structural parameters. Therefore, the accurate calculation (but not destructive measurement) of each PAA structural parameter is of great significance for the design and application of PAA structures to satisfy different practical requirements. However, there is a significant problem because multiple distinct formulas proposed by different researchers are used for calculating single independent PAA structural parameters such as the pore diameter. Furthermore, these multiple distinct formulas for determining a single PAA structural parameter frequently yield different results. Compounding this issue, these single structural parameters serve as independent variables in formulas for calculating other PAA parameters. This propagation of uncertainty leads to multiple distinct results for other subsequent parameters. Consequently, in practice, for the calculation of a PAA structural parameter, it is difficult to discern which calculations are the most accurate. Regarding the aforementioned issues, this paper systematically reviews the key structural parameters of PAA and the most commonly used distinct calculation formulas of each key structural parameter. The independent variables of almost all mentioned calculation formulas are unified to the anodization voltage. Subsequently, extensive experimental data published by other researchers are substituted into all the formulas with the unified independent variable to perform an objective competitive screening for the optimal calculation formula of each PAA structural parameter. Finally, on the basis of the competitive screening and independent variable unification, an equation set of PAA structural parameter calculations is proposed for the accurate and convenient calculation of all key PAA structural parameters. The proposal of an equation set for the PAA structural parameter calculation provides a systematic, comprehensive theoretical model and mathematical tool for the design and calculation of PAA structures according to practical requirements in scientific research and engineering applications. Anodizing ; Variable (mathematics) ; Basis (linear algebra) ; Unification ; Aerospace ; Variables ; Key (lock) Anodic Oxide Films and Nanostructures ; Machine Learning in Materials Science ; Advanced Electron Microscopy Techniques and Applications
Authors: Guizhen Gong | Jiming Chu
Source: Journal of Applied Polymer Science (article, 2026-01-11)
Field: Materials Science — Materials Chemistry

Recent Advances on the Application of Carbon Dots/Polyvinyl Alcohol Composite Materials ABSTRACT The environmental pollution caused by non‐degradable polymer is becoming more and more serious. Polyvinyl alcohol (PVA), biodegradable, non‐toxic, is a good substitute. However, pure PVA has single function, low mechanical strength, poor thermal stability and poor water resistance, which limits its wide application range. Carbon dots (CDs) as a new member of the carbon family has many outstanding advantages such as non‐toxic, low‐cost and becomes an important modifying substance for PVA. CDs/PVA composites show some new properties, such as shape memory, electrochemical properties, optical properties, antibacterial, ultraviolet blocking, which greatly expands its application fields. This review focuses on some novel applications of CDs/PVA. For instance, the ability to form reversible dynamic bonds make CDs/PVA suitable for shape memory and self‐healing materials. The excellent luminescent characteristics and high photoluminescence quantum yield of CDs confer optical properties to CDs/PVA, enabling new applications in optoelectronics and sensing fields. Due to its water resistance, antibacterial properties, antioxidant capacity, and UV resistance, CDs/PVA can serve as a new functional packaging material. Other applications include as adsorbent in environmental protection, anti‐counterfeiting materials, fingerprint identification, electromagnetic shielding materials, catalysis, energy storage, and more. Some bottleneck and challenging issues are also discussed to provide guidance for future research. Polyvinyl alcohol ; Photoluminescence ; Carbon fibers ; Composite number ; Polymer ; Quantum yield Carbon and Quantum Dots Applications ; Graphene and Nanomaterials Applications ; Advanced Nanomaterials in Catalysis
Authors: Titus Masese | Godwill Mbiti Kanyolo
Source: ChemRxiv (article, 2026-01-14)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Multinary Tellurates as Energy Storage Materials Multinary tellurates, particularly those with quaternary and ternary compositions, form a unique group of compounds known for their diverse structural frameworks and notable electrochemical properties. This review brings together current knowledge about these materials, organising them based on their main mobile cation families (i.e., alkali, alkaline-earth, and coinage metals) and highlighting their promise in energy storage applications and beyond. Beyond simply reviewing these material classes, it also suggests future research directions aimed at establishing multinary tellurates as versatile functional materials in the swiftly evolving field of next-generation energy storage and related technologies. Electrochemical energy storage ; Energy storage ; Field (mathematics) ; Energy (signal processing) ; Ternary operation Crystal Structures and Properties ; Thermal Expansion and Ionic Conductivity ; Zeolite Catalysis and Synthesis
Authors: Yifan Qin | Rongzhu Ma | Simin Zhang
Source: Polyoxometalates (article, 2026-01-19)
Field: Materials Science — Materials Chemistry

Polyoxometalate-based one-dimensional subnanomaterials One-dimensional (1D) subnanomaterials (SNMs), including subnanowires (SNWs) and subnanobelts (SNBs), have diameters or thicknesses comparable to the unit cell size, endowed with polymer-like properties such as rheology, gelling and adhesion due to the dimensional similarity to polymer chains. Originally, the single-component 1D SNMs are dominant; later, based on the cluster-nuclei co-assembly (CNCA) strategy, various POM-based 1D SNMs have been developed, enabling the precise regulation of compositions and structures. In this review, a variety of subnanowires (SNWs) and subnanobelts (SNBs), including POMs, metal clusters–POMs (M–POMs), metal cations–POMs (M<sup>n+</sup>–POMs), metal oxides–POMs (M<sub>x</sub>O<sub>y</sub>–POMs), metal sulfides–POMs (M<sub>x</sub>S<sub>y</sub>–POMs) and high-entropy oxides–POMs (HEO–POMs) types, have been discussed with focus on their synthesis, programmable structures, polymer‐analogue properties and excellent performance in gelling, adhesion, catalysis, polarization and photothermal conversion applications. Moreover, the outstanding processability of 1D SNMs further enables macroscale assemblies such as fibers, films and gels, significantly expanding their practicability. Furthermore, challenges and future directions are also discussed, offering new viewpoints on the development and applications of POM-based 1D SNMs. Polarization (electrochemistry) ; Polymer ; Metal ; Adhesion ; Photothermal therapy Polyoxometalates: Synthesis and Applications ; Metal-Organic Frameworks: Synthesis and Applications ; TiO2 Photocatalysis and Solar Cells
Authors: Aji Alexander | Pankaj Kumar Samal | Llorenç Albons | Jesús Redondo | Jan Škvára | Igor Píš | Lukas Fusek | Josef Mysliveček | Viktor Johánek | Dominik Wrana | Martin Setvín
Source: ArXiv.org (article, 2026-01-21)
Field: Materials Science — Materials Chemistry

Competition between clustering and dispersion of cobalt atoms on perovskite surfaces: SrTiO3(001) and KTaO3(001) Perovskite oxides are attractive for reactions in photo/electrocatalytic schemes, and extrinsic doping is a common strategy for tuning their properties. It is widely known that extrinsic dopants impact the structure and stability of perovskite surfaces, but an atomic-scale view is missing. Here, noncontact atomic force microscopy (ncAFM) and photoelectron spectroscopy (XPS/PES) are used to combine microscopic and spectroscopic evidence of cobalt adsorption, incorporation, and clustering at surfaces of two prototypical perovskites SrTiO3 and KTaO3. A number of different sub-ML coverages and temperatures of annealing were investigated. Several common features are observed: cobalt shows a strong preference for ionic nature (+2 and +3 charge states), and remains dispersed as single atoms to a certain extent in both perovskites. Two competing mechanisms are observed upon annealing: coalescence into clusters with a mixed metallic/ionic character, and incorporation into the surface and subsurface regions. The latter is more pronounced in SrTiO3, where a cobalt-stabilized surface reconstruction is identified, whereas for KTaO3 cobalt likely incorporates in the near-surface region. Cobalt ; Perovskite (structure) ; Dopant ; Annealing (glass) ; Cluster (spacecraft) ; X-ray photoelectron spectroscopy ; Doping Electronic and Structural Properties of Oxides ; TiO2 Photocatalysis and Solar Cells ; Chemical and Physical Properties of Materials