نتایج جستجو برای: electrochemical techniques

تعداد نتایج: 676483  

Journal: :Accounts of chemical research 2017
Yujie Zhu Tao Gao Xiulin Fan Fudong Han Chunsheng Wang

Understanding of the thermodynamic and kinetic properties of electrode materials is of great importance to develop new materials for high performance rechargeable batteries. Compared with computational understanding of physical and chemical properties of electrode materials, experimental methods provide direct and convenient evaluation of these properties. Often, the information gained from exp...

The mechanical stability is an important phenomenon which governs many applications based properties of membranes. The inorganic materials of membrane may have been synthesized by qualitative the novel sol-gel or co-precipitation methods of material synthesis. The mMembranes of cobalt (CP) and nickel (NP) composites have been was designed by mixing of the polyvinyl chloride (PVC) with cobalt ph...

2015
Mengning Ding Qiyuan He Gongming Wang Hung-Chieh Cheng Yu Huang Xiangfeng Duan

In situ monitoring electrochemical interfaces is crucial for fundamental understanding and continued optimization of electrocatalysts. Conventional spectroscopic techniques are generally difficult to implement for in situ electrochemical studies. Here we report an on-chip electrical transport spectroscopy approach for directly probing the electrochemical surfaces of metallic nanocatalysts in ac...

Journal: :Chemical Society reviews 2010
Benjamin J Privett Jae Ho Shin Mark H Schoenfisch

The important biological roles of nitric oxide (NO) have prompted the development of analytical techniques capable of sensitive and selective detection of NO. Electrochemical sensing, more than any other NO detection method, embodies the parameters necessary for quantifying NO in challenging physiological environments such as blood and the brain. In this tutorial review, we provide a broad over...

In food sector, there is a huge demand for rapid, reliable, user & eco-friendly biosensors to analyse the quality and safety of food products. Biosensor based methodology depends upon the recognition of a specific antigens or receptors by corresponding antibodies, aptamers or high-affinity ligands. The first scientifically commercialised sensors were the electrochemical sensors used for the ana...

Journal: Journal of Nanoanalysis 2014
Devbrat Pundhir Sadhana Tyagi Saral Kumar Gupta Vibhuti Yadav

Nanostructured hematite thin films are doped with zirconium successfully and also modified by introducing CNT using sol-gel method for their implementation as photo-electrode in photo-electrochemical (PEC) cell for hydrogen generation. XRD, UV-visible spectroscopy and PEC study techniques are used to characterize the thin films. The PEC responses of thin films are improved by introducing carbon...

Journal: :iranian chemical communication 2016
mir ghasem hosseini elham shahryari

composite electrodes of polyaniline/mno2-multi walled carbon nanotube (pani/mno2-mwcnt), mno2-mwcnt nanocomposites and mwcnt was produced by the in situ direct coating approach. the supercapacitor performance of the nanocomposites was studied by fourier transform infrared (ft-ir) spectroscopy and scanning electron microscopy (sem). the electrochemical properties of electrodes were also investig...

Journal: :journal of sciences islamic republic of iran 0

electrochemical behavior of i-hydroxypyridine-2-thione and its vanadium complex is studied using polarographic techniques. polarograms of ligand and that of the complex is shown with diffusion characteristics of the waves. cyclic voltagram of thione is investigated which shows that a reversible oxidation reduction of one electron process is taking place. pka of the thione is found to be in clos...

Journal: :Physical review letters 2013
Kazuhiro Yanagi Rieko Moriya Nguyen Thanh Cuong Minoru Otani Susumu Okada

We report clear experimental evidence for the charge manipulation of molecules encapsulated inside single-wall carbon nanotubes (SWCNTs) using electrochemical doping techniques. We encapsulated β-carotene (Car) inside SWCNTs and clarified electrochemical doping characteristics of their Raman spectra. C=C streching modes of encapsulated Car and a G band of SWCNTs showed clearly different doping ...

2014
Mara M. Aleksić Vera Kapetanović M. M. ALEKSIĆ V. KAPETANOVIĆ

In recent years, a great progress was achieved in the development of electrochemical sensors for DNA sequences, hybridization and damage. Nowadays, electrochemical methods are able to detect DNA at nanomolar concentration. In addition, these methods are suitable for studding both covalent and non-covalent binding interactions between DNA and different small molecules, e.g. drugs or potentially ...

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