Results 71 to 80 of about 9,067 (244)

Study on the Reaction Mechanism of RuOx and Its Enhanced Hydrogen Evolution Reaction Activity

Advanced Science, EarlyView.
In situ Raman spectroscopy and DFT calculations reveal that, prior to the onset of HER, the surface of RuOx undergoes reversible reduction and structural reconstruction. The resulting Ru(II)O/Ru(IV)O2 configuration is identified as the true catalytically active species.
Liquan Zhang, Haobo Dong, Jianrui Feng, Longxiang Liu, Fei Guo, Liqun Kang, Guoliang Chai, Mohamed A. Ghanem, Xinde Chen, Ivan P. Parkin   +9 more
wiley   +1 more source

Interfacial Water Coordination on Ruthenium Oxide Nanoparticles Confined Within Covalent Organic Framework and Its Effect on Electrochemical Nitrate Reduction

Advanced Science, EarlyView.
We demonstrate how oxygen‐deficient ruthenium oxide (RuOx) nanoparticles confined within covalent organic framework achieve highly efficient nitrate‐to‐ammonia conversion. Strong interaction between RuOx nanoparticles and COF results in modified interfacial hydrogen‐bond water network and adsorption of nitrogenous intermediates.
Yun Li, Xin Zhao, Arsenii S. Portniagin, Yuxuan Wu, Desui Chen, Haochen Liu, Andrey L. Rogach   +6 more
wiley   +1 more source

Electroanalytical determination of 4-nitrophenol by square wave voltammetry on diamond electrodes

Journal of the Brazilian Chemical Society, 2003
The anodic voltammetric behavior of 4-Nitrophenol on a Boron-doped diamond electrode in aqueous solution has been studied using square wave voltammetry.
Pedrosa Valber de A., Codognoto Lúcia, Avaca Luis Alberto   +2 more
doaj  

Voltammetric determination of prifinium bromide in a pharmaceutical formulation

Journal of Taibah University for Science, 2019
For the first time voltammetric methods have been applied and optimized for prifinium bromide (PRF) determination in pharmaceutical formulation.
Abdulaziz N. Amro
doaj   +1 more source

Laser Preset of MnOx Layer on High‐Entropy Alloy Surface for Ampere‐Level Ultra‐Stable OER Performance

Advanced Science, EarlyView.
3D printing enables a high entropy alloy‐derived, in situ formed MnOx overlayer that suppresses oxidation–reconstruction and mitigates anodic dissolution, while enhancing electrolyte wetting and bubble release to accelerate interfacial mass transport and OER kinetics.
Benzhi Wang, Ziyang Duan, Jeong Yeon Heo, Thu Ha Le, Byunggon Song, Sunhyeong Kwon, Ji Hoon Lee, Jonghwan Suhr, Hyung Mo Jeong   +8 more
wiley   +1 more source

Simulation of Square Wave Voltammetry:  Reversible Electrode Processes

The Journal of Physical Chemistry B, 1999
A general approach is developed for the numerical simulation of square wave voltammetry (SWV) at uniformly accessible electrodes, based on the backward implicit method. Appropriate transformations of both the spatial coordinate normal to the electrode surface and of the time variable are developed and are shown to lead to efficient and accurate ...
Brookes, B, Ball, J, Compton, R
openaire   +1 more source

Determination of Cocaine by Square Wave Voltammetry with Carbon Paste Electrodes

Brazilian Journal of Forensic Sciences, Medical Law and Bioethics, 2019
We compare the electrochemical behavior of cocaine hydrochloride (in acidic medium) and its free base form (in acetonitrile) by a simple, cheap, and fast square wave voltammetry method for cocaine analysis based on carbon paste electrodes without ...
Pedro Henrique Barros Oliva, Juliana Midori Toia Katayama, Érica Naomi Oiye, Bruno Ferreira, Maria Fernanda Ribeiro, Antônio José Ipólito, José Fernando de Andrade, Marcelo Firmino de Oliveira   +7 more
doaj  

SQUARE WAVE VOLTAMMETRIC DETERMINATION OF LEAD IN COMMERCIAL KOHL USING A GLASSY CARBON ELECTRODE

Journal of Fundamental and Applied Sciences, 2015
A simple sensitive square wave voltammetric method for the determination of lead contamination of several kohl samples purchased from Algeria retail stores was developed using glassy carbon electrode.
M. A. Saha, M. Alia, A. Rebiai, T. Lanez
doaj   +1 more source

A Printed Hydrogel Hybrid Electronic System With Thermoresponsive Adhesion for Neurophysiological Monitoring

Advanced Science, EarlyView.
This work develops a soft hybrid electronic system with printed thermoresponsive hydrogel electrodes, which enables high‐fidelity neural signal acquisition and stimulation. The system precisely assesses median and ulnar nerve injuries in clinical cases, realizing accurate diagnosis of neural impairment while ensuring customized adhesion regulation ...
Bo Pang, Ganguang Yang, Jiacheng Wen, Hangyu Gong, Caixin Gong, Yuqi Qiu, Zhixin Wang, Qingyang Zheng, Sen Zhou, Tianzhao Bu, Jia Tian, Zhouping Yin, Yutian Liu, Hao Wu   +13 more
wiley   +1 more source

Metodologias eletroanalíticas para a determinação de herbicidas triazínicos por voltametria de onda quadrada e técnicas de deconvolução Electroanalytical methodologies for the determination of triazine herbiacides by square wave voltammetry and deconvolution techniques

Química Nova, 2007
This work describes the development of electroanalytical methodologies for the determination of atrazine, ametrine and simazine by square wave voltammetry on a mercury electrode. For pure atrazine and pure ametrine, the detection limits (DL) were 3.7 and
Gustavo S. Garbellini, Valber A. Pedrosa, Giancarlo R. Salazar-Banda, Luis A. Avaca   +3 more
doaj   +1 more source