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Estimation of Water-Soluble Polymers (Poloxamer and Pectin) as Corrosion Inhibitors for Carbon Steel in Acidic Medium

M. Abdallah、Ahmed Fawzy、H. Hawsawi 等 5 位作者2020-07-19International Journal of Electrochemical Science

The inhibitory strength of the two soluble polymer compounds namely, poloxamer (PLX) and pectin (PEC) towards the corrosion of carbon steel in 1.0 M HCl solution was elucidated utilizing four techniques. The inhibition efficacy augments with the concentration of the tested polymer and with reducing temperature. The ou…

Material Properties and Failure MechanismsConcrete Corrosion and DurabilityCorrosion Behavior and Inhibition

A Transparent, Skin‐Inspired Composite Film with Outstanding Tear Resistance Based on Flat Silk Cocoon

Zongpu Xu、Mingrui Wu、Weiwei Gao 等 4 位作者2020-07-19Advanced Materials

Flexible and transparent substrates play a fundamental role as a mechanical support in advanced electronic devices. However, commonly used polymer films, such as polydimethylsiloxane, show low tear resistance because of their crack sensitivity. Herein, inspired by the excellent mechanical robustness of the skin and it…

Electrospun Nanofibers in Biomedical ApplicationsAdvanced Sensor and Energy Harvesting MaterialsSilk-based biomaterials and applications

Ultralow‐Transition‐Energy Organic Complex on Graphene for High‐Performance Shortwave Infrared Photodetection

Muhammad Ahsan Iqbal、Adeel Liaqat、Sabir Hussain 等 7 位作者2020-07-19Advanced Materials

Abstract Room‐temperature, high‐sensitivity, and broadband photodetection up to the shortwave infrared (SWIR) region is extremely significant for a wide variety of optoelectronic applications, including contamination identification, thermal imaging, night vision, agricultural inspection, and atmospheric remote sensing…

Luminescence and Fluorescent Materials2D Materials and ApplicationsPerovskite Materials and Applications

Migration analysis, antioxidant, and mechanical characterization of polypropylene‐based active food packaging films loaded with BHA, BHT, and TBHQ

Seyedeh Homa Fasihnia、Seyed Hadi Peighambardoust、Seyed Hadi Peighambardoust 等 8 位作者2020-07-19Journal of Food Science

Abstract Polypropylene (PP) based active composite films were prepared by adding butylated hydroxy anisole (BHA), butylated hydroxytoluene (BHT), and tertiary butylated hydroquinone (TBHQ) antioxidants using the extrusion molding process. All concentrations of BHT, 2% to 3% BHA, and 3% TBHQ significantly increased the…

biodegradable polymer synthesis and propertiesMicroplastics and Plastic PollutionNanocomposite Films for Food Packaging

Al-dependent electronic and magnetic properties of YCrO$_3$ with magnetocaloric application: an ab-initio and Monte-Carlo approach

Tushar Kanti Bhowmik、Tripurari Prasad Sinha2020-07-19arXiv

In this paper, a theoretical journey from electronic to magneto-caloric effect has been shown through the magnetic properties of aluminium induced yttrium chromate. The ground state electronic band structure and density of states have been studied using first principle calculations under GGA+U schemes. From the energy…

Materials Science

Nano Explosions

Sascha Vongehr2020-07-19arXiv

At the nano-scale, surface phenomena such as attractive VdW forces strongly dominate; explosions may well be thought impossible. We confirm nano explosions that are important for a fractal (hierarchical, scale invariant) pore structure, greatly increasing pore access. Analyzing only microscope images, image analysis a…

Materials ScienceChemical Physics

Magnetization transfer from protons to quadrupolar nuclei in solid-state NMR using PRESTO or dipolar-mediated refocused INEPT methods

Raynald Giovine、Julien Trébosc、Frédérique Pourpoint 等 5 位作者2020-07-19arXiv

We compare here the performances of two approaches to achieve such transfer: PRESTO (Phase-shifted Recoupling Effects a Smooth Transfer of Order), which is currently the method of choice to achieve the magnetization transfer from protons to quadrupolar nuclei and which has been shown to supersede Cross-Polarization un…

Materials Science

Atomic-resolution elemental mapping at cryogenic temperatures enabled by direct electron detection

Berit H. Goodge、David J. Baek、Lena F. Kourkoutis2020-07-19arXiv

Spectroscopic mapping by scanning transmission electron microscopy coupled with electron energy loss spectroscopy (STEM-EELS) is a powerful technique for determining the structure and chemistry of a wide range of materials and interfaces. The extension of this technique to cryogenic temperatures opens the door to new…

physics.ins-detMaterials Science

Liquid-liquid Phase transitions in silicon

M. W. C. Dharma-wardana、Dennis D. Klug、Richard C. Remsing2020-07-19arXiv

We use computationally simple neutral pseudo-atom (`average atom') one-center density functional theory (DFT) and standard N-center DFT-Molecular Dynamics simulations to elucidate liquid-liquid phase transitions (LPTs) in supercooled liquid silicon at 1200K ,and also in silicon under warm-dense matter conditions up to…

cond-mat.stat-mechMaterials Sciencephysics.plasm-ph

Impact of the Interband Transitions in Gold and Silver on the Dynamics of Propagating and Localized Surface Plasmons

Krystyna Kolwas、A. Derkachova2020-07-19Nanomaterials

Understanding and modeling of a surface-plasmon phenomenon on lossy metals interfaces based on simplified models of dielectric function lead to problems when confronted with reality. For a realistic description of lossy metals, such as gold and silver, in the optical range of the electromagnetic spectrum and in the ad…

Gold and Silver Nanoparticles Synthesis and ApplicationsPlasmonic and Surface Plasmon Researchmelanin and skin pigmentation

Gram‐Scale Synthesis of High‐Loading Single‐Atomic‐Site Fe Catalysts for Effective Epoxidation of Styrene

Yu Xiong、Wenming Sun、Pingyu Xin 等 11 位作者2020-07-19Advanced Materials

Abstract Single‐atomic‐site (SAS) catalysts, a new frontier of catalysts, always show extremely high atom efficiency and unexpected catalytic properties. Herein, a pyrolyzing coordinated polymer (PCP) strategy is developed, which is facile and widely applicable in the synthesis of a series of SAS catalysts including S…

Catalysis and Oxidation ReactionsElectrocatalysts for Energy ConversionCatalytic Processes in Materials Science

Emerging Nanocellulose Technologies: Recent Developments

Akira Isogai2020-07-19Advanced Materials

-accumulating nanocelluloses is expected to partly contribute to the establishment of a sustainable society and help overcome current global environmental issues. Nanocelluloses can be categorized into cellulose nanonetworks, cellulose nanofibrils, and cellulose nanocrystals, depending on their morphologies. All of th…

Polysaccharides and Plant Cell WallsAdvanced Cellulose Research StudiesBiofuel production and bioconversion

Assembling Nano–Microarchitecture for Electromagnetic Absorbers and Smart Devices

Xixi Wang、Wen‐Qiang Cao、Mao‐Sheng Cao 等 4 位作者2020-07-19Advanced Materials

Smart devices, nowadays, are inspiring the infinite vitality and possibilities of intelligent life, such as self-power electromagnetic (EM) nanogenerator and microsensor, smart window, thermally-driven EM absorber, interstellar energy deliverer, and so on. Herein, the latest and most impressive works of 3D nano-micro…

Electromagnetic wave absorption materialsMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface Technologies

Recent Progress in High‐Strength and Robust Regenerated Cellulose Materials

Hu Tu、Mengxiang Zhu、Bo Duan 等 4 位作者2020-07-19Advanced Materials

High-strength petroleum-based materials like plastics have been widely used in various fields, but their nonbiodegradability has caused serious pollution problems. Cellulose, as the most abundant sustainable polymer, has a great chance to act as the ideal substitute for plastics due to its low cost, wide availability,…

Electrospun Nanofibers in Biomedical ApplicationsNatural Fiber Reinforced CompositesAdvanced Cellulose Research Studies

Polymeric Nanoparticles for Drug Delivery: Recent Developments and Future Prospects

Belén Begines、Tamara Ortíz、María Pérez‐Aranda 等 7 位作者2020-07-19Nanomaterials

The complexity of some diseases-as well as the inherent toxicity of certain drugs-has led to an increasing interest in the development and optimization of drug-delivery systems. Polymeric nanoparticles stand out as a key tool to improve drug bioavailability or specific delivery at the site of action. The versatility o…

Advancements in Transdermal Drug DeliveryNanoparticle-Based Drug DeliveryAdvanced Drug Delivery Systems

Integrated Study of Geotechnical and Geophysical Methods to Assess the Soil Corrosion Potential for Construction Site

Shahzada Khurram、Perveiz Khalid、Zia Ud Din 等 5 位作者2020-07-18International Journal of Economic and Environmental Geology

Abstract: Corrosion of subsurface steel structures is very critical issue especially in moisture subsoil. The use of physiochemical properties such as pH, salts concentration, electrical resistivity is very common to quantify corrosive nature of subsoil. However, the laboratory measurements of these parameters are qui…

Geophysical and Geoelectrical MethodsCorrosion Behavior and InhibitionConcrete Corrosion and Durability

CCDC 2016798: Experimental Crystal Structure Determination

Timur I. Burganov、Sergey A. Katsyuba、Liliya N. Islamova 等 9 位作者2020-07-18The Cambridge Structural Database

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space grou…

Crystallization and Solubility StudiesX-ray Diffraction in CrystallographyCrystallography and molecular interactions

CCDC 2017296: Experimental Crystal Structure Determination

haitao Yuan2020-07-18The Cambridge Structural Database

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space grou…

Crystallization and Solubility StudiesCrystallography and molecular interactionsX-ray Diffraction in Crystallography

CCDC 2015616: Experimental Crystal Structure Determination

Manoj K. Jana、Ruyi Song、Haoliang Liu 等 10 位作者2020-07-18The Cambridge Structural Database

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space grou…

Crystallization and Solubility StudiesX-ray Diffraction in Crystallography

CCDC 2016731: Experimental Crystal Structure Determination

Ran Zheng、Fan Feng、Zhihui Zhang 等 7 位作者2020-07-18The Cambridge Structural Database

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space grou…

X-ray Diffraction in CrystallographyCrystallization and Solubility Studies