The influence of the acid extract of peel of Cucurbita maxima (PCM) on the corrosion of mild steel in 1N H2SO4 was investigated by weight loss, polarization and impedance methods and SEM analysis. The inhibition efficiency increases with extract concentration and immersion period. Weight loss and corrosion rates of mild steel decreased as the concentration of inhibitor increased. The results sh...

Two different ionic liquids have been tested in the electrochemical fabrication of anodic porous alumina in an aqueous solution of oxalic acid. It was found that during galvanostatic anodization of the aluminum at a current density of 200 mA/cm2, addition of 0.5% relative volume concentration of 1-butyl-3-methylimidazolium tetrafluoborate resulted in a three-fold increase of the growth rate, as...

Isatin , w hich is the su b stra te fo r industria l syn­ thesis o f the m ost p o p u la r fabric dye, the indigo, has been sub ject to elec tro ly tic red u c tio n u n d e r a varie ty of experim en ta l cond itions [1,2]. P o laro ­ graphie b ehav io r o f isatin and a varie ty of isatin derivatives has been described in m any of papers [3 -6 ] , H ow ever, m ost o f those rep o rts w ere d...

S3ve.r oxide (Ag@ and Ago) layers were prepared by lhe anodic oxidation of silver metal in 1M NaOH and investigated in situ with XAFS at grazing incidence. For given glancing angles, x-ray absorption fme structure spectra of the anodic oxides were extracted from these reflectivity data The evaluation of these absorption data yields detailed near range orda structural information about the elect...

Anodic bonding of silicon to glass always involves heating the glass and device to high temperatures so that cations become mobile in the electric field. We present a simple way of bonding thin silicon samples to borosilicate glass by means of heating from the glass side while locally cooling heat-sensitive areas from the silicon side. Despite the high thermal conductivity of silicon, this meth...

Citation: Castro-Muñiz A, Hoshikawa Y, Komiyama H, Nakayama W, Itoh T and Kyotani T (2016) Improving the Direct Electron Transfer in Monolithic Bioelectrodes Prepared by Immobilization of FDH Enzyme on Carbon-Coated Anodic Aluminum Oxide Films. Front. Mater. 3:7. doi: 10.3389/fmats.2016.00007 improving the Direct electron Transfer in Monolithic Bioelectrodes Prepared by immobilization of FDh en...

Studies of the electropolishing of copper are reviewed. Recent work intended to demonstrate the electrochemical planarization of the overburden in electroplated copper interconnect metallization is emphasized. Furthermore, two common reaction mechanisms invoked to explain the mass-transfer limitation required to achieve electropolishing are outlined and discussed within the context of anodic le...

The current oscillatory behavior of epoxy-coated low carbon steel at anodic polarization was investigated in 3,5 % and 0,5 % solutions of NaCl. It was established, that the coated steel may show current oscillations at potentiostatic anodic polarization. The oscillations are of different type, period and amplitude and are more clearly expressed in 0,5 % solution. The presented results might be ...

Abstract The presentation gives an insight into the fascinating world of anodizing as corrosion protection but also goes far beyond. Starting with introduction to formation anodic oxide films and their characteristic features, authors briefly outline subject pore nucleation growth. number, size, shape pores essentially determine properties play a crucial role in final application layers. tailor...