摘要:
An electrocatalytic material includes a bulk material metal including at least one metal, wherein the bulk material metal is in an amorphous form and includes mesopores. A method for making an electrocatalytic material includes forming an amorphous bulk material metal, and forming mesopores in the amorphous bulk material metal. The bulk material metal may in some instances be selected from an alloy of at least one metal and at least one non-metal selected from phosphorus, boron, nitrogen, carbon, and any combination thereof. The at least one metal may in some instances be selected from iron, cobalt, nickel, copper, zinc, titanium, manganese, molybdenum, niobium, zirconium, and any combination thereof.
摘要:
A method for making catalysts of noble metal nanoparticles or alloy nanoparticles or both having shaped morphology, the method including the steps of: pretreating a support material; impregnating metal precursors onto the support material; and then reducing the impregnated metal precursors into shaped metal nanoparticles or shaped alloy nanoparticles or both using a functional gas atmosphere.
摘要:
A method and system for releasably storing hydrogen and generating electricity including an electrochemical cell including a cathode, an anode, an electrolyte, a microporous separator, an electrical connection between the cathode and the anode, an amine source, a nitrile source, a hydrogen source, and an oxygen source, wherein the electrochemical cell is configured to be operated in a hydrogen storage mode, a hydrogen release mode, and electrical generation mode. The amine/nitrile redox couple provides for full cycle electrochemical conversion of hydrogen under mild conditions.
摘要:
An electrocatalytic material includes a bulk material metal including at least one metal, wherein the bulk material metal is in an amorphous form and includes mesopores. A method for making an electrocatalytic material includes forming an amorphous bulk material metal, and forming mesopores in the amorphous bulk material metal. The bulk material metal may in some instances be selected from an alloy of at least one metal and at least one non-metal selected from phosphorus, boron, nitrogen, carbon, and any combination thereof. The at least one metal may in some instances be selected from iron, cobalt, nickel, copper, zinc, titanium, manganese, molybdenum, niobium, zirconium, and any combination thereof.
摘要:
A method for making catalysts of noble metal nanoparticles or alloy nanoparticles or both having shaped morphology, the method including the steps of: pretreating a support material; impregnating metal precursors onto the support material; and then reducing the impregnated metal precursors into shaped metal nanoparticles or shaped alloy nanoparticles or both using a functional gas atmosphere.
摘要:
A method of depositing at least one metal skin layer on a metal nanoparticle core is disclosed. The first step of the method is selecting a metal to deposit. Then, the metal nanoparticle core is dispersed in an electrolyte solvent to form a liquid mixture. Next, a hydrogen containing gas is bubbled through the liquid mixture to form a layer of adsorbed hydrogen atoms on the surface of the metal nanoparticle core. Finally, the selected metal is added to the liquid mixture to form a metal skin layer on the metal nanoparticle core.