نتایج جستجو برای: chronopotentiometry

تعداد نتایج: 152  

Journal: :ChemElectroChem 2023

2,4,6-trichlorophenol (TCP) is regarded as a very harmful persistent organic pollutant. It prohibited by the US EPA due to its stability, possible toxicity, and substantial carcinogenicity, which could result in long-term harm both environment living things. A novel solid-contact electrode (SCE) fabricated characterized for potentiometric determination of (2,4,6-TCP). Molecularly imprinted tric...

Journal: :Indian journal of science and technology 2022

Objectives: To investigate the electrochemical performance of TiO2 (Titanium dioxide) nanoparticles prepared from Ocimum tenuiflorum Plant (OTP) Leaves extract. Methods : cost-effective and eco-friendly green synthesis approach is used to synthesize nanoparticles. XRD (X-ray diffraction) FESEM (Field Emission Scanning Electron Microscopy) techniques are analyse microstructural details. Raman ED...

2008
H. A. LAITINEN

TYPES OF MELTS From the practical viewpoint, melts may be classified according to melting points which may limit the available techniques. The lowest melting, with working temperatures up to 250°, are typified by the LiNO3—NaNO3— KNO3 eutectic, NaNO3—KNO3 eutectic, LiClO4, and ammonium formate. With these solvents it is possible to use the dropping mercury electrode, or hanging mercury drop ele...

2009
C. R. Stoker M. H. Hecht

Introduction: The 2007 Phoenix Mars Scout lander launched on 4 August 2007 and landed on 25 May 2009 at the northern polar latitude of 68.22°N, and longitude 234.25°E (areocentric) [1]. The landing site was a field of sand wedge polygonal terrain [2,3]. For 152 sols the mission made extensive atmospheric and ground measurements. Analyses included interacting with and excavating the Mars regolit...

Journal: :Processes 2022

The efficiency of hydrogen gas generation via electrochemical water splitting has been mostly limited by the availability electrocatalyst materials that require lower overpotentials during redox reaction. Noble metals have used extensively as electrocatalysts due to their high activity and low overpotentials. However, use single noble metal is atomic aggregation caused its inherent surface ener...

Journal: :Annals of the New York Academy of Sciences 1969
P J Elving

Since electron-transfer reactions are so important in biological systems, information which can be obtained in respect to the energy levels (electrical potentials) and reaction pathways involved should be helpful in the understanding, control and utilization of such reactions. Polarographically determinded half-wave potentials ( and electrode reaction paths or mechanisms readily provide such da...

2006
Malgorzata Kotulska

Until now a stable long-lived electro-nanopore could be generated in a lipid membrane only under current-clamp conditions, and stochastic properties of a single nanopore have been studied by the chronopotentiometry (ChP). The current-clamp experiment introduces a negative feedback, which could be responsible for the electropore fluctuations and observed 1/f B power spectrum. A new electroporati...

2017
Li Qingfeng H. A. Hjuler R. Berg N. J. Bjerrum

Effects of the additives MnC12, sulfide, and their combined influence on a luminum deposition and dissolution in NaA1C14 saturated with NaC1 have been studied by polarization measurements, galvanostatic deposition, and current reversal chronopotentiometry (CRC). The solubility of MnC12 was found to be 0.086 _+ 0.006 m/o in the melt at 175~ Aluminum-manganese alloys can be deposited in NaA1C14 s...

2009
John G. Gaudiello Pushpito K. Ghosh Allen J. Bard

Simultaneous electrochemical and electron spin resonance (SEESR) techniques were used to study the environment and rates of electron transfer in two viologen-based chemically modified electrodes. Electrodes derivatized with N,N'-bis[3-(trimethoxysilyl)propyl]-4,4'-bipyridinium, where the redox sites are covalently anchored to the polymer backbone, exhibit broad and featureless spectra upon redu...

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