نتایج جستجو برای: tafel curve

تعداد نتایج: 129121  

Journal: :international journal of iron and steel society of iran 0
a. fattah-alhosseini department of materials engineering, bu-ali sina university, hamedan 65178-38695, iran b. hamrahi department of materials engineering, bu-ali sina university, hamedan 65178-38695, iran

in this work, electrochemical methods such as tafel polarization and electrochemical impedance spectroscopy (eis) were used to study the inhibition efficiency of nettle leaves hydroalcoholic extract as a green corrosion inhibitor of api 5l carbon steel in 0.5 m h2so4 solution. the results showed that the inhibition efficiency was increased with increasing the concentration of the extract and th...

Journal: :تحقیقات مهندسی کشاورزی 0
حسین احمدی چناربن استادیار دانشگاه آزاد اسلامی، واحد ورامین – پیشوا، گروه زراعت و اصلاح نباتات سعید مینایی دانشیار گروه مهندسی مکانیک ماشین های کشاورزی دانشگاه تربیت مدرس علی رضا بصیری استادیار گروه مهندسی شیمی موسسه تحقیقات و پژوهش های علمی و صنعتی ایران مرتضی الماسی استاد گروه مهندسی ماشین های کشاورزی و مکانیزاسیون دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران اکبر عرب حسینی دانشیار گروه مهندسی مکانیک ماشین های کشاورزی پردیس ابوریحان دانشگاه تهران

varieties of st. john’s wort (hypericum perforatum l.) native to iran possess the largest percentage of hypercin in their leaves and flowers. isotherm curves show the relationship between the relative humidity and moisture content of the plant at a constant temperature. it is essential to understand the isotherms curves for successful storage and drying of the plant. this study used adsorption ...

Journal: :International Journal of Hydrogen Energy 2023

We present a detailed mechanistic study of HER at the sulfur vacancy VS 2H–MoS2. evaluate Volmer, Tafel, and Heyrovsky transition states for different possible reaction steps, determining activation energy as function electrochemical potential via grand-canonical density functional theory. The results show that Volmer steps depend on energies decrease more negative potentials, while this is not...

The kinetics of hydrogen evolution reaction (HER) was studied in 1M NaOH at various temperatures (298 to 358 K) on Ni-P-C (composite electrodes. The electrochemical efficiency of the electrodes has been evaluated on the basis of electrochemical data obtained from the steady-state polarization Tafel curves, electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) in 1M NaOH solut...

Elliptic curve cryptosystems (ECC) are new generations of public key cryptosystems that have a smaller key size for the same level of security. The exponentiation on elliptic curve is the most important operation in ECC, so when the ECC is put into practice, the major problem is how to enhance the speed of the exponentiation. It is thus of great interest to develop algorithms for exponentiation...

Journal: :the modares journal of electrical engineering 2010
reza - shoja razavi taghi shahrabi reza mozafarinia

chromate conversion coating is applied on aluminum 6061. the optimum conditions for chromate bath composition and immersion time are also obtained for standard requirements provision such as corrosion resistance in salt spray test, electrical resistance and coating quality. the applied coatings are electrochemically tested in sea and distilled water. according to tafel and cyclic polarization c...

Journal: :Internationale Revue der gesamten Hydrobiologie und Hydrographie 1912

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید