Abstract: The present disclosure relates to a carbon dioxide reduction reaction (CO2RR) catalytic system having a dual catalysis function for the electroreduction of CO2 into multi-carbon products, the catalytic system comprising: a first catalyst layer comprising a support and a first metal-based catalyst that is configured to sustain reduction of CO2 into CO, wherein the first metal-based catalyst is atomically dispersed on the support; and a second catalyst layer comprising a second metal-based catalyst that is configured to sustain C—C coupling mechanisms to yield multi-carbon products from CO; wherein the first catalyst layer is positioned above the second catalyst layer to generate CO between the first catalyst layer and the second catalyst layer.

Abstract: Provided are a coating device and a method for insulating a parallel groove clamp. The coating device includes a feeding mechanism and a coating and curing mechanism. The feeding mechanism includes a material storage container and a push component. The material storage container is configured to contain liquid material. The push component is movably inserted into the material storage container. The coating and curing mechanism includes a forming mold. The forming mold has a forming cavity inside the forming mold. To-be-coated material is contained in the forming cavity. The forming cavity is in communication with the material storage container. The push component is configured to push the liquid material from the material storage container to the forming cavity. The liquid material is configured to be cured and coated on the outside of the to-be-coated material in the forming cavity.