Korea Advanced Institute of Science and Technology

Saudi Arabian Oil Company

WooChul Jung

Sai P Katikaneni

Jun Kyu Kim

Joongmyeon Bae

Kunho Lee

Jinwook Kim

Il-Doo Kim

Dong-Ha Kim

Bonjae Koo

Donghwan Oh

Dae-Kwang Lim

Se Jong Ahn

Kangyong Lee

A perovskite compound having a cubic perovskite structure, high catalytic activity in oxygen reduction and evolution reactions, and excellent durability is provided. The perovskite compound is represented by the following Chemical Formula 1:()()O  (Chemical Formula 1)

Perovskite compound, a catalyst comprising the same, and an electrochemical device comprising the same

Provided are a composite structure, in which metal nanoparticle-perovskite oxide is bound to metal oxide supports (i.e., sensing materials), and a preparation method thereof. The composite structure has improved durability, in which metal nanoparticles uniform in size are evenly distributed on the surface of perovskite oxide. Provided is also a high-performance gas sensor having excellent target gas detection performances by including the composite structure.

Method of manufacturing metal oxide gas sensor functionalized by multicomponent alloy nanoparticle-perovskite composite catalyst

A solid oxide fuel cell according to this invention can provide a solid oxide fuel cell with improved performance, by loading an alkali-based promoter in an anode.

Solid oxide fuel cell comprising anode alkaline-based promoter loaded

A composite coating layer for a solid oxide fuel cell member according to the present disclosure includes a nickel layer that coats at least a portion of the surface of the solid oxide fuel cell member, and a lanthanum oxide layer that coats at least a portion of the surface of the nickel layer, and thereby, has an effect of suppressing the volatilization of chromium from the solid oxide fuel cell member even under high temperature and long-term conditions.

Composite coating layer for hot balance of plant in solid oxide fuel cell

According to embodiments of the present disclosure, a solid oxide fuel cell includes a cathode, an anode, and a solid oxide electrolyte between the anode and the cathode. The solid oxide electrolyte includes a solid oxide, and the anode includes a porous scaffold. The porous scaffold includes a solid oxide having metal-based catalysts disposed on one or more surfaces of the porous scaffold. In embodiments, at least one ammonia decomposition layer is disposed proximate the surface of the porous scaffold and is configured to convert ammonia into hydrogen and nitrogen for subsequent feed of hydrogen to the anode. The ammonia decomposition layer also includes a metal decomposition catalyst.

Direct ammonia-fed solid oxide fuel cell and methods for making the same

According to embodiments of the present disclosure, a method of producing hydrogen in a fuel cell includes passing ammonia under pressure to an anode of the fuel cell, where the ammonia is decomposed into nitrogen gas and protons. The fuel cell comprises a cathode, the anode, and a proton-conducting electrolyte between the anode and the cathode. The anode includes an ammonia decomposition catalyst. The method further includes passing the purging the nitrogen from the anode, passing the protons through the proton-conducting electrolyte to the cathode, and passing the electrons from the anode to the cathode, wherein the protons and the electrons react to produce substantially pure hydrogen gas under pressure.

Method for producing compressed hydrogen using electrochemical systems

There is provided a method for preparation of oxide support-nanoparticle composites, in which metal nanoparticles decorate with uniform size and distribution on the surface of an oxide support, and thus, high performance oxide support-nanoparticle composites that can be applied in the fields of heterogeneous catalysis can be provided.

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Daejeon, South Korea

WooChul Jung