4results about How to "Excellent electrical conductivity" patented technology

The application discloses a sludge resource utilization method and application thereof. The sludge resource utilization method comprises the following steps: performing electro-fermentation treatment on sludge to be fermented in an anode chamber of an electrolytic cell; and the anode electrode in the anode chamber comprises a carbon-based material modified by titanium oxide. The anode electrode of the electrolytic cell comprises the carbon-based material modified by titanium oxide, the hydrophilicity of the surface of activated carbon particles can be significantly improved by modifying the carbon material by titanium oxide, the biocompatibility and electrocatalytic activity of the material are improved, the growth of microorganisms is facilitated, the anaerobic fermentation speed of bacteria can be improved, the electro-fermentation process speed and treatment effect are optimized and improved, and the effective recovery of elements such as nitrogen, iron and phosphorus contained in the sludge is realized, so that the application prospect is good.

This invention belongs to the field of new energy fuel cell technology, and specifically relates to an anode catalyst with anti-reverse polarity, its preparation method, slurry, and fuel cell. The catalyst includes a support and a Pt-Ru alloy and IrO2 supported on the support, wherein the support is a carbon material support; the particle size of the anti-reverse polarity anode catalyst is 3-5 nm. Addressing the technical deficiencies of existing anti-reverse polarity anode catalysts, this invention proposes an improved anti-reverse polarity anode catalyst. This catalyst uses a carbon material support with superior conductivity and mass transfer capacity compared to metal oxide supports such as TiO2, ZrO2, WO3-Mn, and Nb-TiO2. IrO2, which has high anti-reverse polarity performance, is co-supported with the metal active component Pt-Ru alloy on the carbon material support. The resulting anti-reverse polarity anode catalyst, when applied to a fuel cell, exhibits a reverse polarity time of 171 min and an electrode performance of 1.40 A / cm² after reverse polarity. 2 In addition, this anode catalyst also exhibits excellent resistance to CO poisoning.

This invention relates to an enhancement-mode GaN HEMT device based on RESURF electric field modulation, belonging to the field of semiconductor power device technology. The invention aims to solve the technical problem of limited breakdown voltage caused by concentrated electric field at the gate edge in traditional enhancement-mode GaN HEMTs. The main technical solution involves introducing a p-type doped region within the AlGaN barrier layer of the device, located between the gate and drain. This structure utilizes the RESURF effect to effectively modulate and homogenize the electric field distribution in the gate-drain drift region when the device is off, thereby significantly improving the breakdown voltage of the device and optimizing the power factor while maintaining good switching characteristics.

The utility model discloses a photovoltaic line ground resistance resistance lightning protection device, including site, photovoltaic system and lightning protection component, the center of site installs photovoltaic system, and the periphery of photovoltaic system is installed with resistance soil zone that buries. Advantageous effect: set up the main ground net that surrounds the outside of photovoltaic system, through the reliable connection of the ground lead -on line of multipoint connection with photovoltaic system, scatter lightning current distribution, adopt the main ground net material of graphene ground belt, through the resistance rate of multiple parallel reduction, its conductivity and corrosion resistance are superior to traditional steel material, can reduce contact resistance, on this basis, since the main ground net is connected with photovoltaic system through the ground lead -on line of mesh arrangement, and the main ground net is laid on the top surface of rectangular resistance soil zone, and the main ground net is set in the pre -buried pit of resistance soil zone through the ground lead -down body, combines the resistance soil zone of low resistance rate soil and resistance agent filling combination, enlarge the current spreading range, promote the current spreading efficiency.