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Mesoporous layer-by-layer ordered nanohybrids of layered double hydroxide and layered metal oxide: highly active visible light photocatalysts with improved chemical stability.

• Jayavant L. Gunjakar, Tae Woo Kim, Hyo Na Kim, In Young Kim, Seong-Ju Hwang
• Journal of the American Chemical Society
• 2011

Mesoporous layer-by-layer ordered nanohybrids highly active for visible light-induced O(2) generation are synthesized by self-assembly between oppositely charged 2D nanosheets of Zn-Cr-layered double… (More)

Mixed colloidal suspensions of reduced graphene oxide and layered metal oxide nanosheets: useful precursors for the porous nanocomposites and hybrid films of graphene/metal oxide.

• Yu Ri Lee, In Young Kim, Tae Woo Kim, Jang Mee Lee, Seong-Ju Hwang
• Chemistry
• 2012

Homogeneously mixed colloidal suspensions of reduced graphene oxide, or RGO, and layered manganate nanosheets have been synthesized by a simple addition of the exfoliated colloid of RGO into that of… (More)

Soft-chemical exfoliation route to layered cobalt oxide monolayers and its application for film deposition and nanoparticle synthesis.

• Tae Woo Kim, Eun-Jin Oh, +6 authors Seong-Ju Hwang
• Chemistry
• 2009

A colloidal suspension of exfoliated, layered cobalt oxide nanosheets has been synthesized through the intercalation of quaternary tetramethylammonium ions into protonated lithium cobalt oxide.… (More)

Pseudo-gap Features of Intrinsic Tunneling in (hgbr 2 )-bi2212 Single Crystals *

• August Yurgens, Dag Winkler, Tord Claeson, Seong-Ju Hwang, J E Choy
• 1999

Received (received date) Revised (revised date) The c-axis tunneling properties of both pristine Bi2212 and its HgBr 2 intercalate have been measured in the temperature range 4.2-250 K.… (More)

Soft-chemical synthesis and electrochemical characterization of multicomponent Mn(1-x-y)Co(x)Ni(y)O2 nanostructures.

• Tae Woo Kim, Sun Hee Lee, Seong-Ju Hwang, Sang Hoon Hyun, J E Choy
• Journal of nanoscience and nanotechnology
• 2007

Nanostructured Mn(1-x-y)Co(x)Ni(y)O2 metal oxides are synthesized by one-pot hydrothermal reaction at low temperature. From powder X-ray diffraction and field emission-scanning electron microscopic… (More)

Controlled release of donepezil intercalated in smectite clays.

• Jin Kuen Park, Young Bin Choy, Jae-Min Oh, Ju Young Kim, Seong-Ju Hwang, J E Choy
• International journal of pharmaceutics
• 2008

The inorganic-organic hybrid for a drug delivery system was successfully realized by intercalating donepezil molecules into smectite clays (laponite XLG, saponite, and montmorillonite). According to… (More)

Synthesis of new visible light active photocatalysts of Ba(In(1/3)Pb(1/3)M'(1/3))O3 (M' = Nb, Ta): a band gap engineering strategy based on electronegativity of a metal component.

• Su Gil Hur, Tae Woo Kim, +4 authors J E Choy
• The journal of physical chemistry. B
• 2005

We have synthesized new, efficient, visible light active photocatalysts through the incorporation of highly electronegative non-transition metal Pb or Sn ions into the perovskite lattice of… (More)

Laponite-based nanohybrid for enhanced solubility and controlled release of itraconazole.

• Hyun Nyeong Jung, Hyung-Jun Kim, Young Bin Choy, Seong-Ju Hwang, J E Choy
• International journal of pharmaceutics
• 2008

Laponite, a form of layered aluminosilicates, and itraconazole, a water insoluble drug, were hybridized through an interfacial reaction at the boundary between water and a water-immiscible liquid.… (More)

Quantum-Dot-Sensitized Solar Cell with Unprecedentedly High Photocurrent

• Jin-Wook Lee, Dae-Yong Son, +7 authors Nam Gyu Park
• Scientific reports
• 2013

The reported photocurrent density (J(SC)) of PbS quantum dot (QD)-sensitized solar cell was less than 19 mA/cm(2) despite the capability to generate 38 mA/cm(2), which results from inefficient… (More)

Visible light active platinum-ion-doped TiO2 photocatalyst.

• Soonhyun Kim, Seong-Ju Hwang, Wonyong Choi
• The journal of physical chemistry. B
• 2005

Platinum-ion-doped TiO2 (Pt(ion)-TiO2) was synthesized by a sol-gel method, and its visible light photocatalytic activities were successfully demonstrated for the oxidative and reductive degradation… (More)

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