KR – Page 10 – TechConnect Briefs

Fabrication of Thermoplastic Nanocellulose Composite Material

Lim D.-Y., Lee J.A., Kim K.-K., Korea Institute of Industrial Technology, KR

Nanocellulose fibers with the average diameter below 100nm were successfully obtained by a high shear microfluidizer as shown in Figure 1. Their large surface area and nano-scale dimensions can lead to the emerging materials for [...]

3D Printered and Plasma Treated Superhydrophobic Mesh Filters for Oil-water Separation

Lee H.J., Lee S., Jo W., Lee H.J., Lee S., Moon M.-W., Korea Institute of Science and Technology, KR

We develop the 3D printed mesh filters with plasma treatment using a radio-frequency plasma-enhanced chemical vapor deposition (rf-PECVD) to control their surface wettability. The nano-sclae hairy structures on the meshes are created by plasma etching [...]

CO2 reforming of CH4 by the combination of dielectric barrier discharge plasmas and zeolite catalysts

Nguyen H.H., Kim K.S., Kangwon National University, KR

Dry reforming of two green-house gases (CH4 and CO2) to convert to syngas (mixture of CO and H2) has gained deep research interests lately. Several technologies were proposed to convert the CO2 and CH4, such [...]

Controlled Synthesis of Monodisperse Magnetic Porous/Hollow Nanostructures for Biomedical Applications

Kim K.S., Nguyen D.T., Kangwon National University, KR

Recently, studies on therapeutic applications of the magnetic nanoparticles have gained more momentum. The use of magnetic nanoparticles for hyperthermia has shown great promise in the field of nanobiomedicine. The porous/hollow structure also exhibited a [...]

A Study of Particle Size Distribution in NPP process

Lee C., Lee J-H., Lee C., Lee J-H., Koh S.K., Kaji H., Haysashi M., GL Materials, KR

Noble nanoparticles were fabricated on glucose powder by NPP process, in which nanoparticles were formed on the rotating powder in barrel by using conventional PVD system. A 500 um glucose powders were selected as the [...]

Synthesis of Poly(ST-co-COPSI)particles by soap-free emulsion copolymerization and its optical properties as photonic crystals

Choo H.S., Ha J.M., Lee K-C, Gyeongsang national University, KR

Highly charged, submicron-sized polymeric colloidal particles can self assemble into 3-dimentional(3D) opal structure which is useful template for photonic crystal. In this report, optical properties of poly[Styrene(ST)-co-Allyloxy-2-hydroxypropane sulfonic acid sodium salt(COPSI)] polymeric microspheres with number [...]

Flame Synthesized Nanostructured WO3 Thin Films for Photoelectrochemical Water Splitting

Ding J-R, Kim K.S., Kangwon Natonal University, KR

Tungsten oxide has been considered as a promising photoanode material for photoelectrochemcial water-splitting techonologies due to its ralatively favorable band gap position and good charge transport property and stablity in aqueous solution. Typically, 1-dimentional structure [...]

Bi-Layer Graphene Nanoribbon Memory with Graphene Nanoflake Shuttle

Kwon O-K., Kang J-W, Lee J-H., Semyung University, KR

We investigated the dynamic properties of graphene-nanoribbon (GNR) memory encapsulating graphene-nanoflake (GNF) shuttle in the potential to be applicable as a non-volatile random access memory via molecular dynamics simulations. This work explicitly demonstrates that the [...]

Improvement of contact resistance in transparent thin film transistor by applying an Al/SWCNTs bilayer as electrodes

Lee S.J., Yonsei University, KR

SWCNTs have various bandgaps so that they show metal as well as semiconductor characteristic. However, it is difficult to separate the metallic and the semi-conducting SWCNTs. Also, the high contact resistance at the interface between [...]

A Controller Design for SEPIC in a Fuel Cell Battery

Noh M.D., Oh O-K., Kim S., Park Y.W., Chungnam National University, KR

A single-ended primary-inductance converter (SEPIC)is a DC/DC converter that has a wide input range and is ideal for a fuel cell. The controller for a SEPIC is often designed heuristically without the consideration of the [...]