Results 41 to 50 of about 118,659 (268)

Copper corrosion inhibitors based on polyvinyl alcohol and silver nanoparticles [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2019
Polyvinyl alcohol (PVA) and silver nanoparticles/poly(vinyl) alcohol system (nAg/PVA) were investigated as copper corrosion inhibitors in hydrochloric acid solution by electrochemical measurements, such as potentiodynamic polarization and cyclic ...
Grecu Roxana, Samide Adriana, Iacobescu Gabriela Eugenia, Cioateră Nicoleta, Popescu Alexandru   +4 more
doaj   +1 more source

Effect Of Hot Pressing On The Electrochemical Properties Of Ti-Ni Alloy

Archives of Metallurgy and Materials, 2015
Ti2Ni alloy pellets were produced by mechanical alloying and hot pressing at 750°C for 0.5 h in vacuum. X-ray diffraction analysis showed that, after 8 h of milling, a starting mixture of elements mostly decomposed into an amorphous phase.
Balcerzak M., Jurczyk M.
doaj   +1 more source

MULTICHANNEL MEASURING COMPLEX FOR ELECTROCHEMICAL MEASUREMENTS

Sensor Electronics and Microsystem Technologies, 2009
Розглянуто принципи побудови чотирьох канальної вимірювально-інформаційної системи для роботи з багатоелектродними електрохімічними комірками, зокрема, з амперометричними мультибіосенсорами. Описано основні апаратні та програмні засоби вимірювального комплексу, наведено результати його експериментальної перевірки.
Vasylenko, A. D., Shkotova, L. V., Melnik, V. G., Semenytcheva, L. N., Dzyadevych, S. V.   +4 more
openaire   +3 more sources

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

FEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez, Mikael Oliveberg, Peter Brzezinski   +2 more
wiley   +1 more source

Voltammetric determination of resveratrol using poly(l-phenylalanine)-modified gold electrode

Macedonian Journal of Chemistry and Chemical Engineering, 2020
In this study, we investigated the electrochemical modification of a gold electrode using poly(L-phenylalanine) and its applicability for the quantification of resveratrol (RESV).
Öznur Güngör, Chedia Ben Ali Hassine, Muammer Burç, Serap Titretir Duran   +3 more
doaj   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Determination of Some Heavy Metals in European and Polish Coal Samples

Molecules, 2023
This work presents coal analyses for heavy metal content (Tl, Cu, Zn, Cd, Fe). The tested coal samples came from a Russian deposit in the Kuzbass Basin (Novosibirsk and Kemerovo Oblasts, near Kazakhstan) and from Poland.
Bożena Karbowska, Ewelina Włódarzewska, Włodzimierz Zembrzuski, Joanna Zembrzuska, Edyta Janeba-Bartoszewicz, Jarosław Bartoszewicz, Jarosław Selech   +6 more
doaj   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

Inhibition Effect of Phthalocyaninatocopper(II) and 4-Tetranitro(phthalocyaninato)copper(II) Inhibitors for Protection of Aluminium in Acidic Media

International Journal of Electrochemical Science, 2019
The inhibition effect of phthalocyaninatocopper(II) (CuPc) and 4-tetranitro(phthalocyaninato)copper(II) (TNCuPc) on aluminium in 1 mol/L HCl was investigated by electrochemical techniques.
Thabo Pesha, Gobeng R. Monama, Mpitloane J. Hato, Thabiso C. Maponya, Mamookgo E. Makhatha, Kabelo E. Ramohlola, Kerileng M. Molapo, Kwena D. Modibane, Mary S. Thomas   +8 more
doaj   +1 more source