4 results about "Silver chloride electrode" patented technology

An electrode that includes: a substrate; a silver / silver chloride electrode section on at least a part of a surface of the substrate; and a film containing particles of a two-dimensional material including one layer or a plurality of layers on at least a part of a surface of the silver / silver chloride electrode section exposed to an external environment, wherein the one layer or the plurality of layers include a layer body represented by: MmXn, wherein M is one or more metals of Group 3, 4, 5, 6, and 7 and includes Ti, X is a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, and m is more than n but not more than 5; and a modifier or terminal T is present on a surface of the layer body.

The application provides a PolyA-mediated label-free electrochemical sensor and a preparation method and application thereof, and relates to the technical field of electrochemical biosensing. The sensor adopts a three-electrode system as a whole working system, the three-electrode system comprises a working electrode, a reference electrode and an auxiliary electrode; the working electrode is a PolyA-mediated label-free electrochemical aptamer sensor, an AFB1 aptamer is used as a biological recognition element, the biological recognition element is paired with a DNA segment containing a PolyA sequence in a complementary manner, and then is fixed on the surface of a gold electrode by the specific affinity between PolyA and gold; the reference electrode is a silver chloride electrode, and the auxiliary electrode is a platinum wire electrode. The PolyA-mediated label-free electrochemical sensor has the advantages of high detection sensitivity, strong specificity, simple operation, fast detection speed and low cost.

This invention provides a method for preparing a bimetallic cathode and its application in the reduction and degradation of polyfluorinated compounds, including the preparation of a hydrophilic carbon cloth electrode and an electrodeposition Cu source stock solution. The Pd source stock solution is prepared using ultrasonic-assisted dissolution. The hydrophilic carbon cloth electrode is used as the working electrode, a saturated silver chloride electrode as the reference electrode, and a platinum sheet electrode as the counter electrode, connected to an electrochemical workstation. Preparation... 5 mM Cu(NO3)2 and 0.5 M H2SO4 A mixed deposition solution was used to deposit Cu onto the surface of a hydrophilic carbon cloth electrode, resulting in a Cu-modified carbon cloth electrode. This was achieved through a substitution reaction. Pd0 Nanoparticles are loaded onto the surface of a Cu-modified carbon cloth electrode to obtain a bimetallic modified electrode. This invention allows for the direct in-situ synthesis of CuPd bimetals on a low-cost carbon substrate. The operation is simple, the bimetallic loading method consumes less energy, requires no additional chemical reagents, and achieves high degradation, defluorination, and dechlorination rates of chlorinated polyfluorinated compounds in the aquatic environment at relatively low voltage, thus achieving a good degradation effect.