摘要:
본 발명은 플렉시블 전극, 이를 이용한 생체연료전지, 및 이의 제조방법에 관한 것으로, 본 발명에 따른 전극은 비전기 전도성 기재(10), 기재(10)의 외면을 배치되는 기초층(20), 금속 나노입자를 포함하고, 기초층(20)의 외면에 배치되는 나노입자층(31), 및 아민기를 갖는 단분자 물질을 포함하고, 나노입자층(31)의 외면에 배치되는 단분자층(33)을 포함한다.
摘要:
A system and method for reducing carbon dioxide in an electrochemical cell comprising a first cell compartment, a second cell compartment, and a membrane positioned between the first cell compartment and the second cell compartment is disclosed. The method may include introducing a feed containing a carbon dioxide gas and a feed of catholyte at a cathode positioned in the first cell compartment, in which the cathode contains a gas diffusion electrode comprising a carbon cloth or graphitized carbon weave and wherein the carbon dioxide gas is directed through carbon fibers of the carbon cloth or graphitized carbon weave. The method may further include introducing a feed of anolyte at an anode positioned in the second cell compartment and applying an electrical potential between the anode and the cathode of the electrochemical cell to thereby reduce the carbon dioxide to a reduction product.
摘要:
The invention relates to electrocatalysts comprising a carbonitride (CN) shell featuring good electrical conductivity, coordinating suitable catalytically active sites. In a preferred aspect of the invention, the aforesaid carbonitride shell coordinates nanoparticles or aggregates of nanoparticles, on which the active sites of the electrocatalyst are located. In a preferred form of the invention, said carbonitride shell covers suitable cores with good electrical conductivity. Said electrocatalysts are obtained through a process involving the pyrolysis of suitable precursors; in one aspect of the invention, the preparation process requires certain further steps. In one preferred aspect, the steps comprise one or more of the following: chemical treatments; electrochemical treatments; further pyrolysis processes.
摘要:
Apparatuses for generating electrical power and/or treating water desalinating salt water are described, and may include a top manifold comprising one or more inlets, a bottom manifold comprising one or more outlets, a casing connecting the top manifold and the bottom manifold to define an internal space, and at least one electrode set disposed in the internal space. The electrode set may include a silver chloride cathode in fluid communication with a first fluid container including an aqueous solution, such as diluted sodium chloride solution, and a silver anode in fluid communication with a second fluid container including another aqueous solution, e.g., a higher concentration sodium chloride solution. The electrode set also may include a membrane that allows chloride and sodium ions to pass therethrough, and a connector electrically connecting the cathode to the anode to form an electrical circuit.
摘要:
Embodiments of the disclosure relate to intermetallic nanoparticles. Embodiments include nanoparticles having an intermetallic core including a first metal and a second metal. The first metal may be palladium and the second metal may be at least one of cobalt, iron, nickel, or a combination thereof. The nanoparticles may further have a shell that includes palladium and gold.
摘要:
A catalyst is provided for the two electron reduction of oxygen. The catalyst can be reversible or near-reversible. The catalyst comprises a gold and a cobalt coordination complex, i.e., N,N'-bis(salicylidene)ethylene- diaminocobalt (II) (cobalt salen) or a derivative thereof. The cobalt coordination complex can be polymerized to form a film, for example, via electropolymerization, to cover a gold surface. Also provided are metal-air batteries, fuel cells, and air electrodes that comprise the catalyst, as well as methods of using the catalyst, for example, to reduce oxygen and/or produce hydrogen peroxide.
摘要:
본 발명은, 금속을 용융하는 단계; 용융된 금속을 급속 냉각 하면서 분말화하여 비정질 금속 분말로 만드는 단계; 상기 비정질 금속 분말을 전해액 중에 침전시키는 단계; 및 상기 전해액에 전류를 인가하는 단계를 포함하는 것을 특징으로 하는 연료전지 전극용 분말 제조방법을 제공한다. 또한, 본 발명은, 상기 연료전지 전극용 분말 제조방법에 의하여 연료전지 전극용 분말을 제조하는 단계; 상기 연료전지 전극용 분말을 용매에 희석하여 슬러리를 제조하는 단계; 및 상기 슬러리를 수소전도성 멤브레인에 도포하여 연료전지 전극을 성막하는 단계를 포함하는 것을 특징으로 하는 연료전지 제조방법을 제공한다. 또한, 본 발명은, 비정질 금속의 분말로 이루어지고, 상기 금속은 Ni, Fe, Co 및 Zr 중 어느 하나와, Pd, Pt, P, Be, Si, C, Ag, Mg, Ga, 및 Al중 적어도 둘 이상을 포함하는 것을 특징으로 하는 연료전지 전극용 분말을 제공한다.
摘要:
A cathode current collector for a lithium-air battery includes a carbon-free, conductive, porous matrix. The matrix may include a metal boride, a metal carbide, a metal nitride, a metal oxide and/or a metal halide. Example matrix materials are antimony-doped tin oxide and titanium oxide. A carbon-free cathode exhibits improved mechanical and electrochemical properties including improved cycle life relative to conventional carbon-containing porous cathode current collectors.