3 results about "Electrochemical doping" patented technology

This invention discloses an anode material for hydrogen production via water electrolysis, its preparation method, and its application, belonging to the field of water electrolysis hydrogen production technology. The preparation method includes the following steps: using a three-electrode system, with NiFe layered double hydroxide as the working electrode, Pt as the counter electrode, Hg / HgO as the reference electrode, and ammonium molybdate solution as the electrolyte, applying a constant negative potential to the working electrode, and performing electrochemical Mo doping to obtain the anode material for water electrolysis hydrogen production. The catalytic activity of the anode material for water electrolysis hydrogen production of this invention is significantly improved, while the Tafel slope is reduced, making it suitable for industrial-grade high current density water electrolysis.

This invention discloses a titanium-based catalytic electrode and its preparation method, comprising steps such as substrate pretreatment, hydrothermal preparation, and CV doping. Through the above method, the titanium-based catalytic electrode and its preparation method of this invention, using a titanium mesh as a substrate, constructs a titanium-based metal electrode through a multi-step sequential preparation process including substrate etching, hydrothermal treatment, and electrochemical doping. This not only effectively enhances the local pH of the cathode and promotes the rapid precipitation of Mg(OH)2, but also inhibits the dense adhesion of calcium and magnesium scale, extending the electrode's self-cleaning cycle. It is suitable for treating high-hardness wastewater under alkaline conditions, providing important technical support for water pollution control, recycling, and the implementation of sustainable development strategies, possessing significant scientific value and promising application prospects.

The invention discloses a toner containing an insoluble and infusible conductive polymer. The toner can solve the problem that an existing toner is not resistant to thermal offset. According to the technical scheme, the method comprises the following steps: (1) firstly, performing electrochemical doping modification on a conductive polymer to improve the conductivity; (2) crushing a conductive polymer, and performing melt kneading on the crushed conductive polymer and low-melting-point and high-acid-value resin to obtain conductive polymer master batches which are easier to disperse; and (3) preparing the toner composition containing the insoluble and infusible conductive polymer by taking the conductive polymer master batch as an internal additive. The toner obtained by the invention has good thermal migration resistance, narrower charged distribution and good hue, the used materials are wide in source, the treatment method is simple and efficient, and the toner is suitable for large-scale production.