Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Ho Geun Ahn"'
Publikováno v:
Journal of Nanoscience and Nanotechnology. 20:5800-5803
Ethylene, the main raw material for polyethylene production, is a by-product produced by thermally decomposing naphtha and it contains a small amount of acetylene. The acetylene reacts as a permanent catalyst poison for the ethylene polymerization ca
Publikováno v:
Micromachines, Vol 9, Iss 7, p 322 (2018)
Noble metal/metal oxide nanostructures are an efficient system in photocatalysis. Continuous and scalable production of advanced particle systems will be a requirement for commercial-scale deployment for many applications, including photocatalysis. I
Externí odkaz:
https://doaj.org/article/da9f4eb5a87e4ceaafb5b29df3a2a80c
Publikováno v:
Journal of Nanoscience and Nanotechnology. 19:1200-1203
Styrenated phenol alkoxylates (SP-A) are prepared from styrenated phenols (SP) and ethylene oxide (EO) under a homogeneous base catalyst. However, to use EO that is difficult to handle, a high-pressure reaction device capable of reaction process cont
Publikováno v:
Journal of Nanoscience and Nanotechnology. 19:1196-1199
Styrenated phenols (SPs) are usually synthesized by the reaction of styrene and phenol under acid catalysts. SPs with a high content of di-styrenated phenol (DSP) can be used to prepare styrenated phenol alkoxylate (SP-A). Therefore, in this study, a
Autor:
Ho Geun Ahn
Publikováno v:
Journal of the Korean Society for Environmental Technology. 19:383-389
Autor:
Jung-Sik Kim, Heon Lee, Sang-Chai Kim, Young-Kwon Park, Sang-Chul Jung, Ho-Geun Ahn, Sung-Jin Lee
Publikováno v:
Journal of Nanoscience and Nanotechnology. 18:2181-2184
Zinc oxide/activated carbon nanocomposites were synthesized by impregnating zinc oxide nanoparticles onto activated carbon powder using liquid phase plasma (LPP) method. Zinc oxide nanoparticles on the surface of activated carbon were fabricated rapi
Autor:
Young-Kwon Park, Sang-Chul Jung, Heon Lee, Sang-Chai Kim, Jung-Sik Kim, Sangmin Jeong, Ho-Geun Ahn
Publikováno v:
Journal of Nanoscience and Nanotechnology. 18:1279-1282
The liquid phase plasma (LPP) synthetic process has been exploited to synthesize nickel oxide nanoparticles doped TiO2 photocatalyst (NOTP) that can respond to visible light. The physicochemical properties of NOTPs were studied by several analysis in
Autor:
Seungmin Lee, Wonbong Kwak, Hyeungen Lee, Ho-Geun Ahn, Sunghun Jung, Min-Chul Chung, Seokhwan Son
Publikováno v:
Journal of Nanoscience and Nanotechnology. 18:1461-1464
Styrenated phenol was prepared by an alkylation of phenol using NiCl2 and AlCl3 supported on silica gel. The conversion of phenol and styrene of alkylation reaction, and the selectivity of styrenated phenol were investigated. The Al · Ni/SiO2 Suppor
Autor:
Wonbong Kwak, Hyeonjun Yun, Yeongho Lee, Ho-Geun Ahn, Jangho Cho, Min-Chul Chung, Sunghun Jung
Publikováno v:
Journal of Nanoscience and Nanotechnology. 18:1457-1460
Styrenated phenols (SPs) involving very small amount of unreacted phenol and high content of di-SP (DSP) were synthesized, which can be used to prepare SP alkoxylate. The solid catalyst was prepared by impregnation method. SO2-4 on SO2-4/MxOy catalys
Autor:
Ho-Geun Ahn, Ki-Joong Kim
Publikováno v:
Journal of Nanoscience and Nanotechnology. 17:2724-2727
Hydrogenation of carbon dioxide (CO₂) into methanol (CH₃OH) was carried out in the CuO–ZnO based supported gold catalyst prepared by the co-precipitation method. When gold nanoparticles were added to the CuO–ZnO/Al2O₃ catalysts (CuO–ZnO/A