摘要:
A sulfur-containing palladium-carbon catalyst prepared by loading palladium on an active carbon, mixing the palladium-carbon catalyst with a solvent to form a slurry, adding a sulfide to the slurry to treat the loaded palladium under a predetermined temperature, and removing liquid and drying to obtain the catalyst. The sulfur-containing palladium-carbon catalyst is suitable for making phenylene diamine rubber antioxidant with improved productivity and selectivity.
摘要:
A sulfur-containing palladium-carbon catalyst prepared by loading palladium on an active carbon, mixing the palladium-carbon catalyst with a solvent to form a slurry, adding a sulfide to the slurry to treat the loaded palladium under a predetermined temperature, and removing liquid and drying to obtain the catalyst. The sulfur-containing palladium-carbon catalyst is suitable for making phenylene diamine rubber antioxidant with improved productivity and selectivity.
摘要:
A nickel zinc battery cell includes a metallic zinc-based current collection substrate as a part of the negative electrode. The metallic zinc-based current collector may be made of or be coated with a zinc metal or zinc alloy material and may be a foil, perforated, or expanded material. Battery cells incorporating the zinc-based current collector exhibit good cycle lifetime and initial charge performance.
摘要:
Dual-mode container assemblies (30, 110) are provided which include an open-top container (32, 112) with a closure assembly (34, 114) having a skirt (36, 116) and a reversible lid (38, 118) presenting first and second opposed faces (82, 84, 160, 162) hingedly coupled to the skirt (36, 116). In the child-resistant configuration of the assemblies (30, 110), the lid (38, 118) is latched to the skirt (36, 116) by a latching arrangement (60, 100, 136, 177). In order to convert the container assemblies (30, 110) to an adult configuration, the lid (38, 118) is opened and rotated 180° while the lid (38, 118) remains connected to the skirt (36, 116). This reverses the lid face adjacent the open top of the container (32, 112). Closure of the reversed lid (38, 118) occurs without any latching function between the skirt (36, 116) and the lid (38, 118), so that the lid (38, 118) can be readily opened. The connection between the lid (38, 118) and skirt (36, 116) can be effected by hinged connection of rear segment (64) and rotational coupling of a forward reversible body (75), or by a ball joint connection between a ball (170) and ball mount (150). In either case, the lid (38, 118) is moveable about respective transverse axes to permit changeover between the child-resistant and adult configurations of the container assemblies (30, 110).
摘要:
An improved Ni—Zn cell with a negative electrode substrate plated with tin or tin and zinc during manufacturing has a reduced gassing rate. The copper or brass substrate is electrolytic cleaned, activated, electroplated with a matte surface to a defined thickness range, pasted with zinc oxide electrochemically active material, and baked. The defined plating thickness range of 40-80 μIn maximizes formation of an intermetallic compound Cu3Sn that helps to suppress the copper diffusion from under plating layer to the surface and eliminates formation of an intermetallic compound Cu6Sn5 during baking to provide adequate corrosion resistance during battery operation.