Abstract: An aminated magnesium oxide adsorbent, which is the reaction product of a magnesium oxide matrix having disordered mesopores and an amino silane, wherein amine functional groups are present on an external surface and within the disordered mesopores of the magnesium oxide matrix, and wherein the aminated magnesium oxide adsorbent has an average pore volume of 0.2 to 0.4 cm3/g. A method of making the aminated magnesium oxide adsorbent and a method of capturing CO2 from a gas mixture with the aminated magnesium oxide adsorbent are also described.

Abstract: An aminated magnesium oxide adsorbent containing a magnesium oxide matrix having disordered mesopores and a BET surface area of 320 to 380 m2/g, and a polyamine selected from the group consisting of an ethyleneamine having a molecular weight of up to 450 g/mol and a polyethylene imine having a number average molecular weight of greater than 500 g/mol and up to 20,000 g/mol, wherein the polyamine is impregnated within the disordered mesopores of the magnesium oxide matrix. A method of making the aminated magnesium oxide adsorbent and a method of capturing CO2 from a gas mixture with the aminated magnesium oxide adsorbent are also described.

Abstract: A method and an electrocatalytic electrode for electrochemically reducing carbon dioxide to methanol are provided. An exemplary electrocatalytic electrode includes copper (I) oxide crystals electrodeposited over an atomically smooth copper electrode.

Abstract: A method for forming an atomically smooth surface on a copper electrode through electropolishing and the atomically smooth surface are provided. An exemplary method for forming an atomically smooth surface by electropolishing includes placing a copper foil in an electrolyte solution including ethylene glycol and phosphoric acid. The copper foil is coupled to a current source. Current is applied to the copper foil to electropolish the copper foil.

Abstract: An aminated magnesium oxide adsorbent containing a magnesium oxide matrix having disordered mesopores and a BET surface area of 320 to 380 m2/g, and a polyamine selected from the group consisting of an ethyleneamine having a molecular weight of up to 450 g/mol and a polyethylene imine having a number average molecular weight of greater than 500 g/mol and up to 20,000 g/mol, wherein the polyamine is impregnated within the disordered mesopores of the magnesium oxide matrix. A method of making the aminated magnesium oxide adsorbent and a method of capturing CO2 from a gas mixture with the aminated magnesium oxide adsorbent are also described.

Abstract: An aminated magnesium oxide adsorbent, which is the reaction product of a magnesium oxide matrix having disordered mesopores and an amino silane, wherein amine functional groups are present on an external surface and within the disordered mesopores of the magnesium oxide matrix, and wherein the aminated magnesium oxide adsorbent has an average pore volume of 0.2 to 0.4 cm3/g. A method of making the aminated magnesium oxide adsorbent and a method of capturing CO2 from a gas mixture with the aminated magnesium oxide adsorbent are also described.

Abstract: A two or particularly three-phase process, and corresponding apparatus, desulfurizes sour hydrocarbon gas, e.g., natural gas, generally better than known, using a fixed-bed, two-phase processes in terms of the amount of H2S scavenged and the breakthrough time of H2S. The three-phase process is effective in scavenging H2S at ambient temperature and pressure, using a copper salt catalyst impregnated on alumina or other generally inert support, which is regenerable.