نتایج جستجو برای: acidic medium electrochemical measurements

تعداد نتایج: 671987  

Journal: :physical chemistry research 0
mehdi shahidi zandi islamic azad univedrsity, kerman branch ghasem golestani islamic azad university, kerman branch mohammad reza gholamhosseinzadeh islamic azad university, kerman branch

the effect of mentha spicata l. extract on the corrosion behaviour of carbon steel in 1.0 m hcl solution was investigated using polarization, electrochemical impedance spectroscopy (eis) and electrochemical noise (en) techniques. the solution containing 250 ppm of the ethanolic solution of extract showed the highest inhibition efficiency (ie). the effect of temperature on the rate of corrosion ...

Journal: :Chemical communications 2012
Watcharop Chaikittisilp Ming Hu Hongjing Wang Hou-Sheng Huang Taketoshi Fujita Kevin C-W Wu Lin-Chi Chen Yusuke Yamauchi Katsuhiko Ariga

Nanoporous carbons with high surface area are achieved through direct carbonization of a commercially available zeolitic imidazolate framework (ZIF-8) without any additional carbon sources. The resultant nanoporous carbons exhibit high electrochemical capacitances in an acidic aqueous electrolyte.

2016
Rossella Yivlialin Luigi Brambilla Gianlorenzo Bussetti Matteo Tommasini Andrea Li Bassi Carlo Spartaco Casari Matteo Passoni Franco Ciccacci Lamberto Duò Chiara Castiglioni

Phosphoric acid is an inorganic acid used for producing graphene sheets by delaminating graphite in (electro-)chemical baths. The observed phenomenology during the electrochemical treatment in phosphoric acid solution is partially different from other acidic solutions, such as sulfuric and perchloric acid solutions, where the graphite surface mainly forms blisters. In fact, the graphite surface...

Journal: :Physical chemistry chemical physics : PCCP 2014
Ligang Feng Heron Vrubel Michaël Bensimon Xile Hu

Polydispersed dinickel phosphide (Ni2P) nanoparticles were synthesized by a simple and scalable solid-state reaction. These nanoparticles are an excellent and robust catalyst for the electrochemical hydrogen evolution reaction, operating in both acidic and basic solutions.

2009
H. Men C. H. Wang Y. Peng S. R. Yang Z. M. Xu

304 stainless steel was tested under the media without Sulfate-reducing bacteria (SRB) and with SRB. The corrosion behaviors of 304 stainless steel in SRB and without SRB medium were studied by measuring the open circuit potential, the polarization curves and electrochemical impedance Spectrum,weight loss measurements to get the changes of fore-and-aft corrosion fouling. The open circuit potent...

This paper focused on the characterization of electrochemical behavior of a martensitic stainless steel in the acidic solutions. For this purpose, electrochemical parameters were derived from potentiodynamic polarization, Mott Schottky analysis and electrochemical impedance spectroscopy (EIS) techniques. The potentiodynamic polarization results showed that corrosion current density of AISI 420 ...

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