Abstract:
본 발명은 카드뮴 또는 아연 이온 선택성을 갖는 하기 화학식 (1)의 칼릭스[4]아렌 유도체, 이를 제조하는 방법, 이를 이용한 카드뮴 또는 아연 이온 검출 방법 및 형광화학센서에 관한 것으로서, 더욱 상세하게는 카드뮴 또는 아연 이온 선택성을 갖는 상기 칼릭스[4]아렌 유도체가 카드뮴 또는 아연 이온과 착물을 형성할 때 나타나는 모노머 및 엑시머 형광 방출 변화를 측정하여 상기 이온을 검출하는 방법에 관한 것이다.
Abstract:
PURPOSE: A calix[4]arene derivative including a cadmium or zinc ion detecting property is provided to used the derivative as a high-sensitivity fluorescence crane sensor for detecting cadmium or zinc ion. CONSTITUTION: A calix[4]arene derivative marked as the chemical formula 1 includes a cadmium or zinc ion detecting property. The calix[4]arene derivative is produced by reacting a compound marked the chemical formula 2, and 1- azidomethyl pyrene marked as the chemical formula 3 according to the reaction formula 1. The calix[4]arene derivative can selectively detect the cadmium(Cd2+) or the zinc(Zn2+) ion using a measurement of a fluorescence change by the bonding of the cadmium(Cd2+) or the zinc(Zn2+) ion with the calix[4]arene derivative.
Abstract:
Nickel catalysts dipped in alumina-zirconia oxide complex carrier in which zirconia is highly dispersed is provided to manufacture hydrogen gas by performing a reforming reaction of steam of liquefied natural gas. A method for manufacturing nickel catalysts dipped in alumina-zirconia oxide complex carrier in which zirconia is highly dispersed comprises the following steps of: activating a hydroxyl(OH) group on a alumina surface by adding a base catalyst in a alumina-dispersed organic solvent; obtaining a chelated zirconium precursor by using a chelating agent; grafting and reacting a solution by adding the chelated zirconium precursor; obtaining slurry; inducing a hydration and a condensation reaction of the zirconium precursor; drying the solution; obtaining the alumina - zirconia complex oxide carrier building after heating a material; dipping the nickel; drying an outcome; and gaining a nickel catalyst.
Abstract:
PURPOSE: A rhodamine derivative as a fluorescence chemical sensor is provided to ensure high sensitivity and selectivity to a target molecule or ion. CONSTITUTION: A rhodamine derivative is denoted by chemical formula 1. The compound of chemical formula 1 is prepared by functionalizing rhodamine 6G with alkyne groups and treating with azide-Nile red to form intramolecualr 1,2,3-triazole linkers. The rhodamine derivative is prepared by synthesizing propargyl derivative of chemical formula 2 from commercially useful rhodamine 6G(chemical formula 2a) with propargylamine hydrochloride.