Results 71 to 80 of about 141,173 (341)

Electrochemical Impedance Spectroscopy Investigation of Accelerated Erosion Mechanisms in Cement-Based Materials Under an Applied Electric Field

Buildings
To address the issues of lengthy test cycles and singular evaluation methods for the durability of cement-based materials in sulfate environments, this study conducted accelerated sulfate erosion experiments on 3D-printed cement-based materials ...
Baoxi Zuo, Yong Huang, Yubin Liu, Xue Yuan, Liran Jiao, Hong Wu, Sihan Zhang, Ting Liu   +7 more
doaj   +1 more source

Investigation of Formation and Dissociation Processes of Tetrahydrofuran Hydrate Based on Electrochemical Impedance Spectroscopy

Yankuang ceshi, 2015
The electrical properties of hydrous sediments are extremely complex and affected by many factors. The widely used resistivity parameter is unable to characterize the electrical properties of hydrous sediments fully.
XING Lan-chang, CHEN Qiang, LIU Chang-ling   +2 more
doaj   +1 more source

Effects of Nanoparticle Geometry and Size Distribution on Diffusion Impedance of Battery Electrodes

, 2012
The short diffusion lengths in insertion battery nanoparticles render the capacitive behavior of bounded diffusion, which is rarely observable with conventional larger particles, now accessible to impedance measurements. Coupled with improved geometrical
Bazant, M. Z., Song, J.
core   +1 more source

Evaluation of a sol–gel process for the synthesis of La1−xSrxMnO3+δ cathodic multilayers for solid oxide fuel cells [PDF]

, 2004
Solid oxide fuel cells (SOFCs) are electrical energy conversion devices with high efficiency and low pollution. In order to increase performances of SOFCs at intermediate temperature (700–800 °C) and to decrease materials cost, an alternative sol–gel ...
Ansart, Florence, Dessemond, Laurent, Gaudon, Manuel, Laberty-Robert, Christel, Stevens, Philippe   +4 more
core   +3 more sources

Improving the Protectiveness of 3-Mercaptopropyl-Trimethoxysilane Coatings on Bronze by Addition of Oxidic Nano- and Microparticles [PDF]

, 2020
The protectiveness of coatings based on 3-mercaptopropyl-trimethoxysilane (PropS-SH) applied on bronze artworks was enhanced by investigating and tuning a variety of factors.
BALBO, Andrea, GRASSI, Vincenzo, MONTICELLI, Cecilia, SEYEDI, Mahla, ZANOTTO, Federica   +4 more
core   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Microspherical glass additives as coating degradation promoters for UV degradable polymers

Physics of Complex Systems
This study investigates the effect produced by microspherical glass additives on ultraviolet-induced degradation of polymethyl methacrylate films using electrochemical impedance spectroscopy.
Кирилл Львович Левин, Альберт Константинович Хрипунов, Джуд Иро, Данте Батточи   +3 more
doaj   +1 more source

Effect of solution and aging treatments on corrosion performance of laser solid formed Ti-6Al-4V alloy in a 3.5 wt. % NaCl solution

Journal of Materials Research and Technology, 2020
The solution and aging treatments (SAT) were adopted to improve the microstructure and the corrosion resistance ability of laser solid formed (LSFed) Ti-6Al-4 V titanium alloy. The effect of the SAT on the electrochemical properties of the LSFed Ti-6Al-4 
Xiawei Yang, Xiurong Dong, Wenya Li, Wuyuan Feng, Yaxin Xu   +4 more
doaj   +1 more source

Durability parameters of reinforced recycled aggregate concrete: Case study [PDF]

, 2019
Recycled concrete aggregate (RA) from pavement demolition was used to make concrete. Ten concrete mixtures with different replacement percentages of RA (coarse and fine) were made.
Arredondo Rea, Susana Paola, Bernal Camacho, J.M., Corral Higuera, Ramón, Gámez García, Diana C., Gómez Soberón, José Manuel Vicente, Rosas Casarez,, Carlos Antonio, Ungsson Nieblas, Manuel de Jesús   +6 more
core   +2 more sources