Industry-University Cooperation Foundation Hanyang University

Korea Institute of Science and Technology

Research Institute of Industrial Science & Technology

Postech Academy-Industry Foundation

Korea Research Institute of Chemical Technology

Iucf-Hyu

Young-Woong Suh

Tae Jin Park

Ji Hoon Park

Hyun-Joong Kim

Dong Jin Suh

Tae Sun Chang

Young Hyun Yoon

Soo Min Kim

Jinho Oh

Kwan Yong Jeong

Hyung-Su Jang

Kyung-Bok Bae

Beon Sik Kim

Joon-Woo Kim

Dong-Jun Koh

Cheon-Woo Jeong

Hyunguk Kwon

Jeong Woo Han

Myeong Jung Lee

Tae Wan Kim

The present disclosure provides a catalyst for a water gas shift reaction at middle temperature, the catalyst comprising a catalytically active component containing 40 to 80 mol % of copper (Cu), 15 to 50 mol % of zinc (Zn), and 1 to 13 mol % of aluminum (Al), relative to all metals of the catalyst, wherein an aluminum-rich layer is present in a surface layer of a particle of the catalyst. Furthermore, the present disclosure provides a preparation method of the catalyst, and a hydrogen preparation method using the same.

Catalyst for water gas shift reaction at middle temperature, preparation method thereof, and hydrogen preparation method using same

Provided is a method for producing bio-aromatic compounds from glycerol. The method uses a primary alcohol, secondary alcohol or a combination thereof as a mixing medium in converting glycerol into an aromatic compound, and thus overcomes the high viscosity of glycerol and improves the problem of rapid catalytic deactivation, thereby increasing the yield of aromatic compounds and improving the stability of catalyst. In addition, the method for producing bio-aromatic compounds uses a zeolite-based catalyst that is a kind of solid acid catalysts, and suggests optimum reaction conditions, and thus imparts a high added value to glycerol produced as a byproduct in a biodiesel production process and increases the cost-efficiency of process.

Method for producing bio-aromatics from glycerol

A method for preparing carbon aerogels and carbon aerogels obtained therefrom are disclosed. The method for preparing carbon aerogels comprises: mixing organic starting materials including phloroglucinol and furfural with a solvent capable of dissolving the organic materials in a predetermined ratio to form a sol solution; adjusting pH of the sol solution adequately by using an acidic or basic catalyst, gelling the sol solution at room temperature under atmospheric pressure, and aging the resultant gels; substituting the solvent in thus obtained gels with liquid carbon dioxide, followed by drying in a supercritical state, to form organic aerogels; and pyrolyzing the organic aerogels in an electric furnace under inert atmosphere to obtain carbon aerogels. Particularly, the gels are formed at room temperature in a short period of time by adequately adjusting pH of the sol solution. Therefore, the method provides improved time efficiency and energy efficiency as compared to existing methods for preparing gels. Additionally, the method allows supercritical drying while avoiding a need for an additional solvent substitution, thereby simplifying the overall process. Further, the method enables preparation of carbon aerogels for supercapacitors having a high specific surface area and high capacitance even in the absence of additional activation step.

Carbon aerogels for supercapacitors and method of manufacturing the same

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Seoul, South Korea

Young-Woong Suh