Abstract: An apparatus and method for monitoring cathodic protection of a protected object that includes a probe with five segments in series. The cathodic protection is provided by a system with a power supply that impresses current onto the protected object. An anode is included with the system that is also connected to the power supply. The third and fifth segments are in electrical communication through a frangible connection; that over time galvanically corrodes to electrically isolate the third and fifth segments. The second segment, which is a permanent isolator, is set between the first and third segments. The third segment is selectively connected with the protected object. When the third segment is selectively disconnected from the protected object, measuring the potential difference between the third segment and the first segment yields a value for object polarization that is void of IR error.

Abstract: A sacrificial anode system and associated surface pipe system maintenance method designed to protect surface pipes and associated parts. According to a first aspect of the present invention, the sacrificial anode system is installable at an interface between a first pipe and a second pipe and comprises an insertion sleeve shaped to fit along an inner surface of the first pipe, a flange attached to the insertion sleeve and shaped to rest against an end surface of the first pipe, a sacrificial anode to be positioned within the first pipe, and a stem linking the sacrificial anode to the insertion sleeve. According to a second aspect of the present invention, a method for maintaining a surface pipe system is also provided.

Abstract: An apparatus for providing electrochemical corrosion protection to a process vessel, the apparatus comprises at least one anode in communication with the process vessel; a DC current supply being electrically coupled to the process vessel and to the at least one anode; and a potential control unit in communication with the DC current supply. The potential control unit is electrically coupled to the process vessel and to a reference electrode in communication with the process vessel. The current supplied by the DC current supply for passivating the process vessel is adjustable by the potential control unit. The process vessel may comprise at least one of duplex stainless steel and superaustenitic stainless steel.

Abstract: The present invention relates to a contact bar assembly for use in a multi-cell electrolytic system for recovery of metal, to a system including the contact bar assembly, and to a method of using the assembly and system. The contact bar assembly includes a base cap board, a primary bar having a plurality of primary bar structures formed thereon, an auxiliary bar having a plurality of auxiliary bar structures formed thereon, and a top cap board, wherein the base cap board includes slots to receive the primary bar and the auxiliary bar, and wherein the top cap board includes a plurality of openings to receive the plurality of primary bar structures and the plurality of auxiliary bar structures. A system includes the contact bar assembly, an anode assembly, a cathode assembly, and a tank.

Abstract: An electrode is formed using a sanding mechanism to condition the surface of the electrode for electrochemical purposes. Hazardous particles emitted during sanding are captured using jetted liquid, and may be recycled for later use. The sanded surface provides increased electrode lifespan and lead oxide adherence.

Abstract: A composition and method of manufacture of electrodes having controlled electrochemical activity to allow the electrodes to be designed for a variety of electro-oxidation processes. The electrodes are comprised of a compact coating deposited onto a conductive substrate, the coating being formed as multiple layers of a mixture of one or more platinum group metal oxides and one or more valve metal oxides. The formation of multiple layers allows the concentrations of platinum group metal and valve metal to be varied for each layer as desired for an application. For example, an electrode structure can be manufactured for use as an anode in electroplating processes, such that the oxidation of the organic additives in the electrolyte is markedly inhibited. Another electrode can be manufactured to operate at high anodic potentials in aqueous electrolytes to generate strong oxidants, e.g., hydrogen peroxide or ozone.

Abstract: A method for determining a concentration of an analyte is disclosed. The method includes applying a potential excitation to a fluid sample containing an analyte and determining if a current decay curve associated with the fluid sample has entered an analyte depletion stage. The method also includes measuring a plurality of current values associated with the fluid sample during the analyte depletion stage and calculating an analyte concentration based on at least one of the plurality of current values.

Abstract: A method includes (a) contacting at least a portion of a substrate material with a solution comprising a source of copper, wherein the solution is essentially free of a source of a group IIIB metal and a source of a group IVB metal; and (b) after step (a), contacting at least a portion of the substrate with an electrodepositable coating composition comprising (i) a film-forming resin and (ii) a source of yttrium.

Abstract: A permanent cathode that is to be used as electrode in the electro-refining and/or recovery of metals, such as copper, zinc, cobalt or nickel. The permanent cathode comprises a planar mother plate that is made of metal and comprises two sides. The mother plate comprises an edge, which at least partly surrounds the metal plate. The edge comprises a groove portion that is provided with a groove. The groove portion comprises at least one bridging section for joining together, over the groove portion of the edge of the metal plate at the at least one bridging section, the cathode metal halves, such as cathode copper halves, cathode zinc halves, cathode cobalt halves or cathode nickel halves, which are formed on the sides of the mother plate in the electro-refining of the metals.

Abstract: The invention describes an electrode and an electrode coating which are based on a catalyst containing finely divided carbon modifications and noble metal (oxide)s.

Abstract: A portable device includes a substrate, a number of electronic components, and a battery having an anode and a cathode for energizing at least some of the components. The application further relates to a method of protection a portable device against corrosion and to the use of a portable device. An object of the present application is to protect selected metallic parts of a bodyworn electronic device against corrosion in a flexible and controlled manner. The problem is solved in that the portable device includes a sacrificial anode in the form of a component adapted to be surface mounted on the substrate. This has the advantage that corrosion can be contained at a specific location. The device may e.g. be used for portable listening devices, e.g. hearing aids or headsets or earphones including a part adapted for being worn at or in an ear of a user.

Abstract: A corrosion-resistant ceramic electrode material includes ceramic particles and, present between them, a three-dimensional network electroconducting path composed of a reductively fired product of a carbon-containing polymeric compound. This material is manufactured by a method in which a polymerization reaction of a polymerizable monomer previously contained in a ceramic slurry is performed to gel the ceramic slurry to thereby give a green body; and after drying and degreasing, the green body is fired in a reducing atmosphere.

Abstract: The invention relates to an electrode for electrolytic applications, optionally an oxygen-evolving anode, obtained on a titanium substrate and having a highly compact dual barrier layer comprising titanium and tantalum oxides and a catalytic layer. A method for forming the dual barrier layer comprises the thermal decomposition of a precursor solution applied to the substrate optionally followed by a quenching step and a lengthy thermal treatment at elevated temperature.

Abstract: The invention relates to the electrical contacting of planar goods 1 in the form of segments in in-line plants for the electrolytic and/or wet chemical treatment of the treatment side 10 of the good by applying electrical external current while keeping the upper contacting side 9 dry and dipping the treatment side 10 into the treatment liquid 11. By use of the known transport systems having upper and lower transport and/or contact means, treatment liquid 11 is transferred from the lower means to the upper ones so that the top side of the good is often inadmissibly wetted and the upper contacts are electroplated, therefore needing to be continuously de-metallized, thus requiring a larger effort. According to the invention, the level is lowered in the region of upper contacts 6. Therefore, the same cannot be wetted, even when no good is present in the region of the contacts 6. This is achieved by means of down pipes 5 which are assigned to each contact 6.

Abstract: The present invention relates to an electrode that includes an electrically conducting substrate based on a valve metal having a main proportion of titanium, tantalum or niobium, and an electrocatalytically active coating comprising up to 50 mol % of a noble metal oxide or noble metal oxide mixture and at least 50 mol % of titanium oxide. The coating includes a minimum proportion of oxides of anatase structure determined by a ratio of the signal height of the most intensive anatase reflection in an x-ray diffractogram (CuK? radiation) after subtraction of a linear background to the signal height of the most intensive rutile reflection in the same diffractogram, wherein the ratio is at least 0.6.

Abstract: The present invention provides an excellent durable cathode for hydrogen generation, which has a low hydrogen overvoltage and reduced dropping-off of a catalyst layer against the reverse current generated when an electrolyzer is stopped, and a method for producing the same. The present invention provides a cathode for hydrogen generation having a conductive base material and a catalyst layer formed on the conductive base material, wherein the catalyst layer includes crystalline iridium oxide, platinum and iridium-platinum alloy.

Abstract: A measuring device is provided having a protective cover and a sensor arranged in the protective cover. The protective cover has a carrier tube made of metal and closed on one end. A first coating made of an aluminum non-wettable material is arranged on an outer surface of the carrier tube, and a further coating made of aluminum-wettable material is applied on the first coating.

Abstract: Electroplating systems that include a plurality of electrodes, a power supply operably coupled to the plurality of electrodes, a platen for bearing a substrate on which metal features are to be formed, and an electrode support are disclosed. The electrode support may be configured for suspending the electrode assembly over an upper surface of the substrate disposed on the platen in spaced relation to and in alignment with the substrate or for supporting the electrode assembly in a stationary position over the substrate when the voltage is applied across the plurality of electrodes. The electrodes may be adjacent, mutually spaced and electrically isolated and connected in series so as to be oppositely polarized when the voltage is applied thereacross or may be connected so as to have alternating polarities when the voltage is applied thereacross.

Abstract: A microfluidic separation device is provided that includes a sample channel having a first sample channel region and a second sample channel region, where a cross-section of the first sample channel region is smaller than a cross-section of the second sample channel region. The invention further includes a detection region having a first detection region and a second detection region, where a cross-section of the first detection region is larger than a cross-section of the second detection region and the second sample channel region is connected to the first detection region. Additionally, the invention includes a marker input channel disposed to input markers into the second sample channel region, where the markers are larger than the cross-section of the first sample channel region and the cross-section of the second detection region, where the markers collect in the first detection region.

Abstract: A multi-layer cathode block (30) for an electrolytic cell (10) has at least a surface layer (32) with a surface expansion index and a second layer (34) with a second expansion index. The surface layer (32) includes a surface wetting agent in a first total amount. The second layer (34) includes a wetting agent in a second total amount. The surface layer (32) is directly superposed to the second layer (34). The second wetting agent in the second layer (34) includes metal boride precursors that react together to generate a metal boride component in situ when the cathode block (30) is exposed to start-up and operation conditions of the electrolytic cell (10). The second total amount is lower than the first total amount and is selected so as to minimize the difference between the expansion indexes of the surface layer (32) and the second layer (34).