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Master Curve Establishment and Complex Modulus Evaluation of SBS-Modified Asphalt Mixture Reinforced with Basalt Fiber Based on Generalized Sigmoidal Model

Guojin Tan、Wensheng Wang、Yongchun Cheng 等 5 位作者2020-07-17Polymers

Basalt fiber has been proved to be a good modified material for asphalt mixture. The performance of basalt fiber modified asphalt mixture has been widely investigated by extensive researches. However, most studies focused on ordinary static load tests, and less attention was paid to the dynamic mechanical response of…

Asphalt Pavement Performance EvaluationNatural Fiber Reinforced CompositesInfrastructure Maintenance and Monitoring

Defect/Interface Recombination Limited Quasi-Fermi Level Splitting and Open-Circuit Voltage in Mono- and Triple-Cation Perovskite Solar Cells

Shanshan Zhang、Paul E. Shaw、Guanran Zhang 等 10 位作者2020-07-17ACS Applied Materials & Interfaces

Multication metal-halide perovskites exhibit desirable performance and stability, compared to their monocation counterparts. However, the study of the photophysical properties and the nature of defect states in these materials is still a challenging and ongoing task. Here, we study bulk and interfacial energy loss mec…

Perovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films

Hydrodesulfurization of Dibenzothiophene on TiO2–x-Modified Fe-Based Catalysts: Electron Transfer Behavior between TiO2–x and Fe Species

Xuandong Liu、Jinjia Liu、Lei Li 等 9 位作者2020-07-17ACS Catalysis

Appropriate electronic structure is vital to promote the catalytic performance of active species. In this work, TiO 2– x was employed to regulate active Fe species to the electron-rich state, causing remarkable synergetic effects in which the sulfur removal rates of Fe-based catalysts were increased by 10–40% and reac…

Catalytic Processes in Materials ScienceCatalysis and Hydrodesulfurization StudiesNanomaterials for catalytic reactions

Finite-size corrections of defect energy levels involving ionic polarization

Stefano Falletta、Julia Wiktor、Alfredo Pasquarello2020-07-17Physical review. B./Physical review. B

We develop a scheme for finite-size corrections of vertical transition energies and single-particle energy levels involving defect states with built-in ionic polarization in supercell calculations. The method accounts on an equal footing for the screening of the electrons and of the ionic polarization charge arising f…

Theoretical and Computational PhysicsElectronic and Structural Properties of OxidesSurface and Thin Film Phenomena

Natural Fiber-Stabilized Geopolymer Foams—A Review

Katharina Walbrück、Felicitas Maeting、Steffen Witzleben 等 4 位作者2020-07-17Materials

The development of sustainable, environmentally friendly insulation materials with a reduced carbon footprint is attracting increased interest. One alternative to conventional insulation materials are foamed geopolymers. Similar to foamed concrete, the mechanical properties of geopolymer foams can also be improved by…

Concrete and Cement Materials ResearchInnovative concrete reinforcement materialsMagnesium Oxide Properties and Applications

The impact of grain-scale strain localization on strain hardening of a high-Mn steel: Real-time tracking of the transition from the γ → ε → α’ transformation to twinning

Isnaldi Rodrigues de Souza Filho、Aniruddha Dutta、D.R. Almeida 等 8 位作者2020-07-17Acta Materialia

Strain partitioning and localization were investigated in a high-Mn steel (17.1 wt.% Mn) during tensile testing by a correlative probing approach including in-situ synchrotron X-ray diffraction, micro- digital image correlation (μ-DIC) and electron microscopy. By combining Warren's theory with the μ-DIC analysis, we m…

Microstructure and mechanical propertiesMicrostructure and Mechanical Properties of SteelsMagnetic Properties and Applications

The Role of Ceria in a Hybrid Catalyst toward Alkaline Water Oxidation

Jun Yu、Zheng Wang、Jian Wang 等 9 位作者2020-07-17ChemSusChem

Abstract Ceria‐based catalysts for the oxygen evolution reaction (OER) have received keen interest in recent years owing to their potential excellent cost performance. However, despite a flurry of research activities, the mechanism on how ceria activates those hybrid catalysts is still puzzling. Herein, by controllabl…

Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceAdvanced battery technologies research

CO2/N2 Separation Properties of Polyimide-Based Mixed-Matrix Membranes Comprising UiO-66 with Various Functionalities

Chong Yang Chuah、Junghyun Lee、Juha Song 等 4 位作者2020-07-17Membranes

Nanocrystalline UiO-66 and its derivatives (containing -NH2, -Br, -(OH)2) were developed via pre-synthetic functionalization and incorporated into a polyimide membrane to develop a mixed-matrix membrane (MMM) for CO2/N2 separation. Incorporation of the non-functionalized UiO-66 nanocrystals into the polyimide membrane…

Membrane Separation and Gas TransportCovalent Organic Framework ApplicationsAmmonia Synthesis and Nitrogen Reduction

Freestanding Millimeter‐Scale Porphyrin‐Based Monoatomic Layers with 0.28 nm Thickness for CO2 Electrocatalysis

Deren Yang、Shouwei Zuo、Haozhou Yang 等 5 位作者2020-07-17Angewandte Chemie International Edition

Abstract Developing two‐dimensional (2D) and single atomic layered materials is a fascinating challenge. Here we successfully synthesize porphyrin‐based monoatomic layer (PML), a freestanding 2D porphyrin‐based material of monomer‐unit thickness (2.8 Å). The solvothermal method provides a bottom‐up approach for tailor…

Advanced Photocatalysis TechniquesCO2 Reduction Techniques and CatalystsCovalent Organic Framework Applications

Unhindered Brownian Motion of Individual Nanoparticles in Liquid-Phase Scanning Transmission Electron Microscopy

Murat Nulati Yesibolati、Kim I. Mortensen、Hongyu Sun 等 6 位作者2020-07-17Nano Letters

Liquid-phase transmission electron microscopy (LPTEM) offers label-free imaging of nanoparticle (NP) processes in liquid with sub-nanometer spatial and millisecond temporal resolution. However, LPTEM studies have reported only on NPs moving orders of magnitude slower than expected from bulk aqueous liquid conditions,…

Advanced Electron Microscopy Techniques and ApplicationsForce Microscopy Techniques and ApplicationsElectron and X-Ray Spectroscopy Techniques

CB Nanoparticles Optimized 3D Wearable Graphene Multifunctional Piezoresistive Sensor Framed by Loofah Sponge

Minghui Cao、Shuangqing Fan、Hengwei Qiu 等 6 位作者2020-07-17ACS Applied Materials & Interfaces

Three-dimensional (3D) wearable piezoresistive sensors with excellent performance are urgently needed in many emerging fields. Herein, a hybrid piezoresistive sensor with 3D structure, which is framed by loofah sponge and coated with reduced graphene oxide modified with carbon black nanoparticles (rGO-CB@LS), was obta…

Advanced Sensor and Energy Harvesting MaterialsGas Sensing Nanomaterials and SensorsConducting polymers and applications

Effect of B4C and waste porcelain ceramic particulate reinforcements on mechanical and tribological characteristics of high strength AA7075 based hybrid composite

Amit Aherwar、Amar Patnaik、Catalin I. Pruncu2020-07-17Journal of Materials Research and Technology

In the present research, B4C (constant = 4 wt.%) and X-wt.% of waste Porcelain (P) (X = 0, 4, 8, 12 and 16) particulates, reinforced into AA7075 hybrid aluminium metal-ceramics composites (AMCs) manufactured using the stir casting route were investigated. Microstructures, compositional elements and worn surfaces were…

Magnesium Alloys: Properties and ApplicationsAluminum Alloys Composites PropertiesMXene and MAX Phase Materials

Deeply uncertain: comparing methods of uncertainty quantification in deep learning algorithms

João Caldeira、B. Nord2020-07-17Machine Learning Science and Technology

We present a comparison of methods for uncertainty quantification (UQ) in deep learning algorithms in the context of a simple physical system. Three of the most common uncertainty quantification methods—Bayesian neural networks (BNNs), concrete dropout (CD), and deep ensembles (DEs) — are compared to the standard anal…

Probabilistic and Robust Engineering DesignAdversarial Robustness in Machine LearningMachine Learning in Materials Science

Unprecedented Radiation Resistant Thorium–Binaphthol Metal–Organic Framework

Sara E. Gilson、Melissa Fairley、Patrick Julien 等 9 位作者2020-07-17Journal of the American Chemical Society

A thorium–organic framework ( TOF-16 ) containing hexameric secondary building units connected by functionalized binaphthol linkers was synthesized, characterized, and irradiated to probe its radiation resistance. Radiation stability was examined using γ-rays and 5 MeV He 2+ ions to simulate α particles. γ-irradiation…

Metal-Organic Frameworks: Synthesis and ApplicationsRadioactive element chemistry and processingCovalent Organic Framework Applications

Transition metal dichalcogenide-based mixed-dimensional heterostructures for visible-light-driven photocatalysis: Dimensionality and interface engineering

Xiaorong Gan、Dangyuan Lei、Ruquan Ye 等 5 位作者2020-07-17Nano Research

Two-dimensional (2D) transition metal dichalcogenides (TMDCs) are emerging as promising building blocks of high-performance photocatalysts for visible-light-driven water splitting because of their unique physical, chemical, electronic, and optical properties. This review focuses on the fundamentals of 2D TMDC-based mi…

Advanced Photocatalysis Techniques2D Materials and ApplicationsCovalent Organic Framework Applications

Mapping the oxygen structure of γ-Al2O3 by high-field solid-state NMR spectroscopy

Qiang Wang、Wenzheng Li、Ivan Hung 等 10 位作者2020-07-17Nature Communications

Abstract γ-Al2O3 is one of the most widely used catalysts or catalyst supports in numerous industrial catalytic processes. Understanding the structure of γ-Al2O3 is essential to tuning its physicochemical property, which still remains a great challenge. We report a strategy for the observation and determination of oxy…

Physics of Superconductivity and MagnetismAdvanced NMR Techniques and ApplicationsSolid-state spectroscopy and crystallography

Impact of Backbone Rigidity on the Thermomechanical Properties of Semiconducting Polymers with Conjugation Break Spacers

Luke Galuska、William W. McNutt、Zhiyuan Qian 等 11 位作者2020-07-17Macromolecules

There remains a lack of fundamental understanding in the role of backbone rigidity on the thermomechanical properties of conjugated polymers. Here, we provide the first holistic approach to understand the fundamental influence of backbone rigidity on an n-type naphthalene diimide-based conjugated polymer, denoted by P…

Organic Electronics and PhotovoltaicsAdvanced Sensor and Energy Harvesting MaterialsConducting polymers and applications

Supported Metal Pair-Site Catalysts

Erjia Guan、Jim Ciston、Simon R. Bare 等 8 位作者2020-07-17ACS Catalysis

Complexes with neighboring metal centers in isolated pairs and their analogues on surfaces are drawing increasing attention as catalysts. These include molecular homogeneous catalysts incorporating various ligands, enzymes, and solids that include pairs of metal atoms mounted on supports. Catalysts in this broad class…

Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceSurface Chemistry and Catalysis

Prognostic for fuel cell based on particle filter and recurrent neural network fusion structure

Renyou Xie、Rui Ma、Sicheng Pu 等 6 位作者2020-07-17Energy and AI

Fuel cells are considered as one of the most promising candidates for future power source due to its high energy density and environmentally friendly properties, whereas the short lifespan blocks its large-scale commercialization. In order to enhance the reliability and durability of proton exchange membrane fuel cell…

Advancements in Solid Oxide Fuel CellsFuel Cells and Related MaterialsFault Detection and Control Systems

Turning Photons into Drugs: Phthalocyanine‐Based Photosensitizers as Efficient Photoantimicrobials

Anzhela Galstyan2020-07-17Chemistry - A European Journal

One of the most promising alternatives for treating bacterial infections is antimicrobial photodynamic therapy (aPDT), making the synthesis and application of new photoactive compounds called photosensitizers (PS) a dynamic research field. In this regard, phthalocyanine (Pc) derivatives offer great opportunities due t…

Nanoplatforms for cancer theranosticsPorphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research Studies