摘要:
A method for making a bi-metallic electrocatalyst produces a non-platinum group metal (non-PGM), bimetallic oxide crystalline catalyst showing low overpotential in both oxygen evolution reactions (OER) and oxygen reduction reactions (ORR) in a metal-air battery and/or fuel cell applications. A metal-air storage cell, optionally configured as part of a battery, includes a bi-metallic electrocatalyst. An electrical management system includes a metal-air storage cell.
摘要:
Proceso de conversión directa de metano y dióxido de carbono en hidrocarburos oxigenados de más de un átomo de carbono. La presente invención se refiere a un proceso de conversión directa de metano y dióxido de carbono en, preferentemente, hidrocarburos oxigenados de más de un átomo de carbono, que comprende poner en contacto una mezcla de gases que contiene metano y dióxido de carbono con un catalizador a una temperatura inferior a 450ºC, donde el catalizador es un nanocompuesto multifásico que comprende al menos una fase de un óxido mixto (II/III) de metales de transición, una fase mono- ó multi-metálica que comprende al menos un metal noble, y una fase de un óxido de metal noble. Dicho proceso de catálisis estrictamente heterogénea en un solo paso se lleva a cabo en condiciones de reacción moderadas que no favorecen la producción mayoritaria de productos de reformado, como son H2 y CO.
摘要:
Die vorliegende Erfindung betrifft ein Verfahren zur chemischen Umsetzung von Zuckern oder Zuckeralkoholen zu Polyolen/Glykolen, wobei die Umsetzung der Zucker oder Zuckeralkohole durch Hydrogenolyse in Gegenwart eines mindestens ein Metall enthaltenden Katalysators auf einem Kohlenstoff-Träger erfolgt, wobei als Katalysator-Träger ein mit Sauerstoff und/oder Phosphor und/oder Bor dotierter Kohlenstoff-Träger verwendet wird. Die vorliegende Erfindung stellt ein Verfahren zur chemischen Umsetzung von Zuckern oder Zuckeralkoholen zu Glykolen zur Verfügung, welches die Herstellung von Glykolen mit höherer Selektivität ermöglicht und die Bildung von Milchsäure als Nebenprodukt verringert.
摘要:
The present invention relates in part to a method of fabricating multimetallic nanoparticles, the method comprising the steps of providing a substrate; activating the substrate surface; adsorbing a cationic transition metal complex onto the substrate surface to form a substrate-supported cationic transition metal complex; adsorbing an anionic transition metal complex onto the substrate-supported cationic transition metal complex to form a substrate-supported multimetallic complex salt; and reducing the substrate-supported multimetallic complex salt to provide a plurality of multimetallic nanoparticles. The invention also relates in part to a composition of multimetallic nanoparticles comprising at least two metals M a and M b ; wherein the ratio of M a to M b is between about 2:1 and about 1:2.
摘要:
Provided herein are methods of preparing tetrahexahedra nanoparticles and methods of using the tetrahexahedra nanoparticles as an oxidative catalyst.
摘要:
A novel catalyst composition and its use in the dehydrogenation of alkanes to olefins. The catalyst comprises a Group VIII noble metal selected from the group consisting of nickel, iron, cobalt, and combinations thereof, and a metal selected from the group consisting of molybdenum, indium, phosphorous, zinc, and combinations thereof, on a support. The catalyst composition is an active and selective catalyst for the catalytic dehydrogenation of alkanes to olefins.
摘要:
본 발명은 산화적 탈수소화 반응용 촉매 시스템, 이를 포함하는 산화적 탈수소화용 반응기 및 산화적 탈수소화 방법에 관한 것으로, 보다 상세하게는 산화적 탈수소화 반응용 촉매를 고정층 반응기에 n개(n은 2 이상의 정수)의 단으로 충진하되, 각각의 단이 수학식 1 및 2를 만족하도록 충진하여 반응 시 반응기 내부의 발열이 효과적으로 제어되어 전환율, 선택도, 수율 등이 크게 개선되는 효과를 제공할 수 있으며, 촉매의 열화 현상 저감으로 촉매의 장기 안정성이 향상되는 효과를 제공하는 촉매 시스템 등에 관한 것이다.
摘要:
A bimetallic catalyst alloy is provided for use in fuel cells, particularly in the oxidation of dimethyl ether in a direct dimethyl ether fuel cell