Korea Institute of Science and Technology

Samsung Electronics Co., Ltd.

Global Frontier Center for Multiscale Energy Systems

Industrial Cooperation Foundation Chonbuk National University

Gl Materials Inc.

Hee-Young Park

Hyoung-Juhn Kim

Jong Hyun Jang

Sung Jong Yoo

So Young Lee

Jin Young Kim

Hyun Seo Park

Bora Seo

Dirk Henkensmeier

Suk Woo Nam

Katie Heeyum Lim

Jea-Woo Jung

Dirk Henkensmeir

Jonghee Han

Byoung-Deog Choi

Eun Ae Cho

Tae-Hoon Lim

Seung Ju Lee

Hong-Rae Kim

Taekyung Lee

Kyung-Mun Byun

Jin-Hyung Park

Injoon Jang

Pil Kim

Sehyun Lee

Sang-Ho Roh

Yeonsun Sohn

Oh Sub Kim

Jong Min Kim

Jieun Choi

Hun-Kee Kim

Sung Pil Yoon

Sang Young Lee

Hee Soo Kim

Tae Hoon Lim

Dong Won Chun

Dong Wook Lee

Chang Won Yoon

Yun-Hee Kim

Hyung Chul Ham

Seok Keun Koh

Sang Hyun Ahn

Yung-Eun Sung

Min Kyung Cho

Jin-Yoo Suh

Ju Sung Lee

Young-Su Lee

Jaeyune Ryu

Jihyun Choi

Kug-Seung Lee

Jimin Kong

Namgee Jung

Ahyoun Lim

Myeong-Geun Kim

Gyu Seong Yi

Jae Young Jung

Hyean-Yeol Park

Jiho Lee

Jaeyoung Hong

Jee-Hwan Bae

Sae Yane Baek

Jing Young Kim

Byungseok Lee

Jin Hyeon Choi

Jeawoo Jung

Daeil Choi

The present disclosure relates to a catalyst for a fuel cell, a fuel cell including the same and a method for preparing the catalyst for a fuel cell. More specifically, the catalyst for a fuel cell according to the present disclosure can exhibit superior catalytic activity as compared to the existing catalyst even when the catalyst metal is used at a very low content because some metal of the metal nanoparticles distributed on a carbon support is replaced with catalyst metal single atoms.

Catalyst for fuel cell, fuel cell comprising the same and manufacturing method thereof

The present disclosure relates to a catalyst for electrochemical synthesis of ammonia, which includes a metal sulfide, a method for preparing the same and a method for regenerating the same.

Catalyst for electrochemical synthesis of ammonia, method for preparing same, and method for regenerating same

The present disclosure relates to a method for preparing a catalyst for a fuel cell, a catalyst for a fuel cell and a fuel cell including the same. More specifically, the catalyst for a fuel cell according to the present disclosure, wherein ruthenium chalcogenide including the 1T phase exists as single-walled nanotubes, can reduce manufacturing cost by exhibiting superior catalytic activity so as to replace the existing platinum catalyst and can significantly improve stability.

Catalyst for fuel cell, fuel cell comprising the same and preparation method of the catalyst for fuel cell

The present disclosure relates to a polybenzimidazole-based electrolyte membrane for alkaline water electrolysis, which includes a polybenzimidazole-based polymer, wherein the polybenzimidazole-based polymer is a biaxially oriented film. The polybenzimidazole-based electrolyte membrane for alkaline water electrolysis can reduce the concentration of an alkaline solution by improving the crystallinity of a polybenzimidazole-based polymer to increase the resistance against base, significantly improving the long-term stability of alkaline water electrolysis using a polybenzimidazole-based electrolyte membrane through the improved resistance against base, and by increasing the operation temperature to enhance the catalyst activity.

Polybenzimidazole-based electrolyte membrane for alkaline water electrolysis and water electrolysis device comprising the same

Provided is a fluorine-doped tin oxide support, a platinum catalyst for a fuel cell having the same, and a method for producing the same. Also described is a high electrical conductivity and electrochemical durability by doping fluorine to the tin oxide-based support through an electrospinning process. Thus, while resolving a degradation issue of the carbon support in the conventional commercially available platinum/carbon (Pt/C) catalyst, what is designed is to minimize an electrochemical elution of dopant or tin, which is a limitation of the tin oxide support itself and has excellent performance as a catalyst for a fuel cell.

Fluorine-doped tin oxide support and Pt catalyst for fuel cell comprising the same

Disclosed are a catalyst electrode for a fuel cell, a method for fabricating the catalyst electrode, and a fuel cell including the catalyst electrode. The presence of an ionomer-ionomer support composite in the catalyst electrode prevents the porous structure of the catalyst electrode from collapsing due to oxidation of a carbon support to avoid an increase in resistance to gas diffusion and can stably secure proton channels. The presence of carbon materials with high conductivity is effective in preventing the electrical conductivity of the electrode from deterioration resulting from the use of a metal oxide in the ionomer-ionomer support composite and is also effective in suppressing collapse of the porous structure of the electrode to prevent an increase in resistance to gas diffusion in the electrode. Based on these effects, the fuel cell exhibits excellent performance characteristics and prevents its performance from deteriorating during continuous operation.

Catalyst electrode for fuel cell, manufacturing method thereof and a fuel cell comprising the catalyst electrode for fuel cell

The present disclosure relates to antioxidant for a polymer electrolyte membrane fuel cell electrode catalyst, which includes cerium hydrogen phosphate (HCe(PO)(HO)) in the form of a nanofiber, and an electrode and a membrane-electrode assembly including the same. The electrode for a polymer electrolyte membrane fuel cell of the present disclosure, wherein the antioxidant is dispersed, can improve the mechanical strength of an electrode catalyst layer and can minimize deterioration of chemical durability even after long-term operation. And, a fuel cell including the same can exhibit high output performance and can operate stably even after long-term operation.

Electrode for polymer electrolyte membrane fuel cell comprising antioxidant and membrane-electrode assembly comprising same

Disclosed is an antioxidant for a polymer electrolyte membrane of a fuel cell including cerium hydrogen phosphate (CeHPO). The presence of cerium hydrogen phosphate in the antioxidant enhances the dissolution stability of cerium and improves the ability to capture water, leading to an increase in proton conductivity. In addition, the cerium hydrogen phosphate has a crystal structure composed of smaller cerium particles. This crystal structure greatly improves the ability of the antioxidant to prevent oxidation of the electrolyte membrane. Also disclosed are an electrolyte membrane including the antioxidant, a fuel cell including the electrolyte membrane, a method for preparing the antioxidant, a method for producing the electrolyte membrane, and a method for fabricating the fuel cell.

Antioxidant for electrolyte membrane of fuel cell and method for preparing the same

The present disclosure relates to a polyarylene ether-based polymer for an electrolyte membrane of a fuel cell, represented by the following Chemical Formula 1. When the polyarylene ether-based polymer for an electrolyte membrane of a fuel cell is applied to the manufacture of a membrane-electrode assembly through a decal process, the hot pressing temperature may be controlled to about 120&#xb0; C. so as to conform to a low glass transition temperature. Therefore, it is possible to solve the problems of deterioration of an electrolyte membrane or incomplete transfer of an electrode catalyst layer, caused by the high hot pressing temperature applied in the case of the conventional hydrocarbon-based polymer material. 

Polyarylene ether-based polymer containing aliphatic chain, electrolyte membrane including the same, and membrane-electrode assembly including the electrolyte membrane

The present disclosure discloses an asymmetric electrolyte membrane, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same. More particularly, it discloses an asymmetric electrolyte membrane having a porous layer and a dense layer at the same time, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same.

Asymmetric electrolyte membrane, membrane electrode assembly comprising the same, water electrolysis apparatus comprising the same and method for manufacturing the same

According to an embodiment of the present invention, the method includes: (a) preparing a liquid cell containing a palladium precursor solution; (b) applying electron beams to the palladium precursor solution contained in the liquid cell; and (c) generating palladium hydride nanoparticles having the hcp crystal structure in the palladium precursor solution.

Palladium hydride having hcp crystal structure and preparation method thereof

The present disclosure is a method for manufacturing a catalyst for a fuel cell using the blood of slaughtered livestock. The method for manufacturing a catalyst for a fuel cell using the blood of slaughtered livestock of the present disclosure allows preparation of a catalyst for a fuel cell exhibiting high redox reaction activity and very superior durability as compared to a commercially available platinum catalyst through a very simple process of purification of the blood of slaughtered livestock and hydrothermal synthesis. In addition, the method is very economical in that a catalyst is prepared using the pure blood of livestock only without an artificial additive, waste disposal cost can be reduced by recycling the blood of livestock and a high-performance catalyst capable of replacing the expensive platinum catalyst can be prepared.

Method for manufacturing catalyst for fuel cell using blood of slaughtered livestock

A method is disclosed for preparing a metal single-atom catalyst for a fuel cell including the steps of depositing metal single atoms to a nitrogen precursor powder, mixing the metal single atom-deposited nitrogen precursor powder with a carbonaceous support, and carrying out heat treatment. The step of depositing metal single atoms is carried out by sputtering, thermal evaporation, E-beam evaporation or atomic layer deposition. The method uses a relatively lower amount of chemical substances as compared to conventional methods, is eco-friendly, and can produce a single-atom catalyst at low cost. In addition, unlike conventional methods which are limited to certain metallic materials, the present method can be applied regardless of the type of metal.

Method of manufacturing metal single-atom catalysts

The present disclosure relates to a fuel cell catalyst and a manufacturing method thereof. The fuel cell catalyst can be used to manufacture a membrane electrode assembly having a catalyst layer of high density and high dispersion by solving the problem of aggregation of catalyst particles occurring during the formation of the catalyst layer, by using a catalyst including a polydopamine-coated support. In addition, the method for manufacturing the fuel cell catalyst does not require a solvent because the catalyst including the polydopamine-coated support, wherein from 0.1 to 1% of the hydroxy groups contained in catechol groups of the polydopamine are replaced by halide atoms, in solid phase are simply heat-treated by solid-to-solid dry synthesis which allows manufacturing of a fuel cell catalyst in a short time by eliminating the need for a washing process using a solvent and an extraction process for sampling after the synthesis.

Fuel cell catalyst and manufacturing method thereof

Growing community of inventors

Seoul, South Korea

Hee-Young Park