Search Results - "Ho Gyeom Jang"

K3PO4-catalyzed carboxylation of amines to 1,3-disubstituted ureas: A mechanistic consideration by Choi, Young-Seop, Kim, Heehwan, Shin, Seung Hoon, Cheong, Minserk, Kim, Yong Jin, Jang, Ho Gyeom, Kim, Hoon Sik, Lee, Je Seung

“…•Synthesis of 1,3-disubstituted ureas by the carboxylation of amines with CO2.•K3PO4 as benign catalyst for the carboxylation of amines.•Mechanistic and…”
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Melilite-Structure CaYAl3O7:Eu3+ Phosphor: Structural and Optical Characteristics for Near-UV LED-Based White Light by Park, Seung Hyok, Lee, Kyoung Hwa, Unithrattil, Sanjith, Yoon, Ho Shin, Jang, Ho Gyeom, Im, Won Bin

“…A red-emitting phosphor, CaY1‑x Eu x Al3O7 (CYA:Eu3+), was prepared by conventional solid-state reaction, and its structural properties were investigated by…”
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Ionic liquids as benign catalysts for the carbonylation of amines to formamides by Choi, Young-Seop, Shim, Yu Na, Lee, Jeesun, Yoon, Jung Hee, Hong, Chang Seop, Cheong, Minserk, Kim, Hoon Sik, Jang, Ho Gyeom, Lee, Je Seung

“…[Display omitted] ► Synthesis of imidazolium-based ionic liquids (ILs) bearing a bicarbonate anion. ► ILs as benign catalysts for the carbonylation of amines…”
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Synthesis of In2O3 nano-materials with various shapes by Jae Myung Kim, Joung Kyu Park, Kyung Nam Kim, Chang Hae Kim, Ho Gyeom Jang

“…The ability to form In2O3 with various shapes is of great interest in a number of areas. In this paper, we report the nano-particles,nono-rods and nano-wires…”
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Novel approach to enhance the dispersion stability of ER fluids based on hollow polyaniline sphere particle by Sung, Bo Hyun, Choi, Ung Su, Jang, Ho Gyeom, Park, Yong Sung

“…By this time, when electrorheological (ER) fluids were applied long term, these have been limited because of problems with particle sedimentation. To solve the…”
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CO2 Absorption and Desorption in an Aqueous Solution of Heavily Hindered Alkanolamine: Structural Elucidation of CO2‑Containing Species by Choi, Young-Seop, Im, Jinkyu, Jeong, Jun Kyo, Hong, Sung Yun, Jang, Ho Gyeom, Cheong, Minserk, Lee, Je Seung, Kim, Hoon Sik

“…The pathways for the CO2 absorption and desorption in an aqueous solution of a heavily hindered alkanolamine, 2-(t-butylamino)ethanol (TBAE) were elucidated by…”
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Imidazolium zinc tetrahalide-catalyzed coupling reaction of CO2 and ethylene oxide or propylene oxide by Kim, H

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Isolation of a Pyridinium Alkoxy Ion Bridged Dimeric Zinc Complex for the Coupling Reactions of CO2 and Epoxides by Kim, Hoon Sik, Kim, Jai Jun, Lee, Byung Gwon, Jung, Ok Sang, Jang, Ho Gyeom, Kang, Sang Ook

“…The intermediate itself is an active species: The pyridinium alkoxy ion bridged zinc complex 1, formed by the reaction of [(C6H5N)2ZnBr2] and propylene oxide,…”
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Well-Defined Highly Active Heterogeneous Catalyst System for the Coupling Reactions of Carbon Dioxide and Epoxides by Kim, Hoon Sik, Kim, Jai Jun, Kwon, Hyeck Nam, Chung, Moon Jo, Lee, Byung Gwon, Jang, Ho Gyeom

“…The poly(4-vinylpyridine)-supported zinc halide catalysts, prepared from a reaction of ZnX2 and poly(4-vinylpyridine), exhibit high selectivity and activity…”
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Morphological effect of lipid carriers on permeation of lidocaine hydrochloride through lipid membranes by Shim, Jongwon, Kim, Mi Jin, Kim, Han-Kon, Kim, Do-Hoon, Oh, Seong Geun, Ko, Seung Yong, Jang, Ho Gyeom, Kim, Jin-Woong

“…We have studied how the transdermal delivery of lidocaine hydrochloride (LHC) is affected by the morphology of lipid carriers, liposomes and micelles, having…”
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Bredigite-structure orthosilicate phosphor as a green component for white LED: the structural and optical properties by Lee, Kyoung Hwa, Park, Seung Hyok, Yoon, Ho Shin, Kim, Yong-Il, Jang, Ho Gyeom, Im, Won Bin

“…A green-emitting phosphor, Ca₁₄-xEuxMg₂[SiO₄]₈ (CMS:Eu²⁺), has been synthesized as a component of white light emitting diodes (WLEDs). The emission spectrum is…”
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Crystal Structure of Tetraethylammonium Dichloro[1,2-bis(2-pyridine-2-carboxamido)benzene]cobalt(III) Monohydrate by SEO, Jin Soo, RYU, Ji Young, LEE, Jun Yong, LEE, Je Seung, JANG, Ho Gyeom, KIM, Cheal, KIM, Youngmee

“…The structure of the tetradentate Co(III) complex was determined by the X-ray diffraction method. Four N atoms of the 1,2-bis(2-pyridine-2-carboxamido)benzene…”
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CO 2 Absorption and Desorption in an Aqueous Solution of Heavily Hindered Alkanolamine: Structural Elucidation of CO 2 -Containing Species by Choi, Young-Seop, Im, Jinkyu, Jeong, Jun Kyo, Hong, Sung Yun, Jang, Ho Gyeom, Cheong, Minserk, Lee, Je Seung, Kim, Hoon Sik

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CO^sub 2^ Absorption and Desorption in an Aqueous Solution of Heavily Hindered Alkanolamine: Structural Elucidation of CO^sub 2^-Containing Species by Choi, Young-Seop, Im, Jinkyu, Jeong, Jun Kyo, Hong, Sung Yun, Jang, Ho Gyeom, Cheong, Minserk, Lee, Je Seung, Kim, Hoon Sik

“…The pathways for the CO^sub 2^ absorption and desorption in an aqueous solution of a heavily hindered alkanolamine, 2-(t-butylamino)ethanol (TBAE) were…”
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CO sub( 2) Absorption and Desorption in an Aqueous Solution of Heavily Hindered Alkanolamine: Structural Elucidation of CO sub( 2)-Containing Species by Choi, Young-Seop, Im, Jinkyu, Jeong, Jun Kyo, Hong, Sung Yun, Jang, Ho Gyeom, Cheong, Minserk, Lee, Je Seung, Kim, Hoon Sik

“…The pathways for the CO sub( 2) absorption and desorption in an aqueous solution of a heavily hindered alkanolamine, 2-(t-butylamino)ethanol (TBAE) were…”
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Melilite-Structure CaYAl 3 O 7 :Eu 3+ Phosphor: Structural and Optical Characteristics for Near-UV LED-Based White Light by Park, Seung Hyok, Lee, Kyoung Hwa, Unithrattil, Sanjith, Yoon, Ho Shin, Jang, Ho Gyeom, Im, Won Bin

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K sub(3)PO sub(4)-catalyzed carboxylation of amines to 1,3-disubstituted ureas: A mechanistic consideration by Choi, Young-Seop, Kim, Heehwan, Shin, Seung Hoon, Cheong, Minserk, Kim, Yong Jin, Jang, Ho Gyeom, Kim, Hoon Sik, Lee, Je Seung

“…K sub(3)PO sub(4) was found to effectively catalyze the carboxylation of amines by CO sub(2), producing corresponding 1,3-disubstituted ureas in high yields…”
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New Mechanistic Insight into the Coupling Reactions of CO2 and Epoxides in the Presence of Zinc Complexes by Kim, Hoon Sik, Kim, Jai Jun, Lee, Sang Deuk, Lah, Myoung Soo, Moon, Dohyun, Jang, Ho Gyeom

“…Coupling reactions of CO2 and epoxide to produce cyclic carbonates were performed in the presence of a catalyst [L2ZnX2] (L=pyridine or substituted pyridine;…”
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Efficiency and Thermal Stability Enhancements of Sr2SiO4:Eu2+ Phosphor via Bi3+ Codoping for Solid-State White Lighting by Park, Seung Hyok, Yoon, Ho Shin, Boo, Hye Min, Jang, Ho Gyeom, Lee, Kyoung Hwa, Im, Won Bin

“…Bi and Eu-codoped yellow-emitting phosphors of composition Sr 1.95-x Eu 0.05 Bi x SiO 4 were prepared, and their emission and thermal quenching characteristics…”
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Efficiency and Thermal Stability Enhancements of Sr 2 SiO 4 :Eu 2+ Phosphor via Bi 3+ Codoping for Solid-State White Lighting by Park, Seung Hyok, Yoon, Ho Shin, Boo, Hye Min, Jang, Ho Gyeom, Lee, Kyoung Hwa, Im, Won Bin

“…Bi and Eu-codoped yellow-emitting phosphors of composition Sr 1.95- x Eu 0.05 Bi x SiO 4 were prepared, and their emission and thermal quenching…”
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