Hyundai Motor Company

Kia Motors Corporation

Industry-university Cooperation Foundation Hanyang University

Pusan National University

Jin Hyeok Cha

Woong Pyo Hong

Suk Hwan Yun

Seung Jeong Oh

Sun Bo Shim

Woo Jae Lee

Se Hun Kwon

Jong Ryoul Kim

Min Kyu Kang

Disclosed are a Mn&#x2014;Bi&#x2014;Sb-based magnetic substance and a method of manufacturing the same. Particularly, the Mn&#x2014;Bi&#x2014;Sb-based magnetic substance includes Mn and Bi forming a hexagonal crystal structure, and a portion of Bi elements forming the crystal structure is substituted with Sb so as to improve the magnetic properties thereof.

Mn&#x2014;Bi&#x2014;Sb-based magnetic substance and method of manufacturing the same

Disclosed is a method for preparing a metal catalyst composite. The method includes pre-treating a carbon support in a reactor, and depositing a metal precursor on the pre-treated carbon support. The pre-treating the carbon support may include exposing the carbon support to a nucleating agent, for example, titanium tetrachloride (TiCl), silicon tetrachloride (SiCl) and carbon tetrachloride (CCl).

Method for preparing supported metal catalyst and supported metal catalyst prepared therefrom

The present invention provides a method for measuring gas permeability of a polymer membrane, for example, by evaluating polymer-structure influence on gas permeability in of a polymer membrane.

Method of evaluating gas permeability of polymer membrane based on molecular dynamics simulation

A method of evaluating a movement tendency of ions in an electrolyte membrane includes counting inter-movement ions, counting intra-movement ions and calculating the ratio of the intra-movement ions and inter-movement of ions. The movement tendency of ions is predicted based on the ratio. In the case of evaluating a movement tendency of ions using the method, since the structure of the electrolyte membrane in which the ratios of intra-movement and inter-movement are maximized is predicted through measurement of the ratios of the intra-movement and inter-movement of ions, ohmic resistance that may occur in a membrane-electrode assembly (MEA) may be reduced. The electrolyte membrane having the optimal structure predicted by the method can be applied to a fuel cell to increase its performance.

Method and apparatus for evaluating movement tendency of ions in electrolyte membrane

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Suwon-si, South Korea

Jin Hyeok Cha