이희정 교수

The conjunction of porous ZIF-8 with polystyrene spheres is demonstrated to induce the formation of polystyrene@ZIF-8 core-shell structures. A subsequent etching process on polystyrene@ZIF-8 core-shells to remove polystyrene cores results in a unique hollow ZIF-8.

Nano- and micro-composites comprised of porous carbon and magnetic particles are prepared by one-step pyrolysis of metal-organic frameworks (MOFs). The porosity and composition of resulting magnetic porous carbons are facilely regulated by altering the pyrolysis temperature and changing the organic building blocks incorporated within the initial MOFs.

Three coordination polymer particles (CPPs) are selectively synthesized using the solvothermal method. All three CPPs are prepared from the same building blocks. However, they form different morphologies, such as elongated hexagons, ellipsoids, and rods. Gas-adsorption measurements on N2, CO2, and H2 reveal that diversely shaped CPPs have different gas-adsorption properties, even though they have the same chemical compositions. Detailed facts of importance to specialist readers are published as

The ability to fabricate multicompositional hybrid materials in a precise and controlled manner is one of the primary goals of modern materials science research. In addition, an understanding of the phenomena associated with the systematic growth of one material on another can facilitate the evolution of multifunctional hybrid materials. Here, we demonstrate precise manipulation of the isotropic and/or anisotropic nanoscale growth of various coordination polymers (CPs) to obtain heterocompositio

Well-dispersed hollow porous carbon (HPC) spheres are prepared by the pyrolysis of polystyrene@ZIF-8 core-shell microspheres. The resulting HPC spheres have high surface areas and show tremendous methylene blue adsorption ability due to the lack of agglomeration, excellent dispersion, and high surface-to-volume ratio.

Compositions as well as morphologies and structures of particles are vital factors that define their properties and applications. However, the morphology and structure changes associated with the composition change of metal-organic frameworks (MOFs) are barely studied. Herein, we report the morphology and structure changes of MOF particles associated with the ratio of two organic linkers incorporated within MOF particles, when they are constructed from the reactions of In(NO3)3 in the presence o

ABSTRACTIt is very important for marketers to manage brand personalities effectively. As brand personalities affect a consumer-brand relationship and attitude related to the brand positively or negatively. A brand personality can project five attributes : sincere, exciting, strong, sophistication, cute.In this research, we investigate which brand personalities affect consumer-brand relationships and brand attitudes. According to this research, sincere and cute brand personalities affect consumer

The conjugation of Eu(3+)-doped coordination polymers constructed from Gd(3+) and isophthalic acid (H(2)IPA) with silica particles is investigated for the production of luminescent microspheres. A series of doping ratio-controlled silica@coordination polymer core-shell spheres is easily synthesized by altering the amounts of metal nodes used in the reactions, where the ratios of Gd(3+) and Eu(3+) are 10:0 (1a), 9:1 (1b), 8:2 (1c), 7:3 (1d), 5:5 (1e), and 0:10 (1f). The formation of monodisperse

Abstract The aim of this study is to examine three types of trust in services provided in the sharing economy toward the goal of increasing consumers’ intention to use a ride‐sharing service. The three trust factors for sharing services are trust in drivers, trust in users, and trust in platforms. It is hypothesized that related to consumers’ consumption lifestyles would influence their trust in a sharing service; in particular, previous researchers found that anti‐consumption influenced consume

A distinctive brand personality can create unique and favorable associations in a consumer’s memory and thus enhance brand equity. Our research interest lies in the development of a city brand personality scale that can be applied to destination marketing in the Korean context. Based on Aaker’s (1997) Brand Personality Scale (BPS), we have customized this scale to be useable in the context of the South Korean market. In this research, we have found five dimensions of city brand personality: “sin

Abstract Compositions as well as morphologies and structures of particles are vital factors that define their properties and applications. However, the morphology and structure changes associated with the composition change of metal–organic frameworks (MOFs) are barely studied. Herein, we report the morphology and structure changes of MOF particles associated with the ratio of two organic linkers incorporated within MOF particles, when they are constructed from the reactions of In(NO 3 ) 3 in th

Narrowly-dispersed fluorescent octahedron and rounded-octahedron coordination polymer particles (CPPs) have been synthesized from the solvothermal reaction of In(NO3)3·xH2O and 2,6-bis[(4-carboxyanilino)carbonyl]pyridine. The shape and size of the resulting CPPs were dependent on the amount of solvent (and thus the concentration of reactants) used in the reaction. Under poor solubility conditions with only a small amount of DMF, the formation of coordination polymers proceeds quickly and the par

‘귀화(歸化, naturalization)’제도는 외국인을 우리 국가공동체의 구성원으로 받아들여 국민으로서의 모든 권리․의무를 포괄적으로 부여하는 결정을 말한다. 이는 국가의 3요소 중 하나인 ‘국민’의 범위를 결정하는 기능을 한다는 점에서 헌법적 차원의 중요성을 갖는다. 특히 전통적으로 단일민족국가임을 표방하였던 우리나라가 점차 ‘다문화사회’로 이행되어 가고 있는 현재, ‘귀화’는 국가의 구성원을 충원하는 제도로서 더 적극적인 기능을 수행하며, 이전과는 다른 차원의 의미를 획득해 가고 있다. 한편, 개인적 차원에서는 자신이 어느 국가공동체에 속하여 살아가는가가 그의 전 생애에 걸쳐 영향을 미치는 중요한 결정이므로, 귀화제도는 그 신청인의 헌법상 기본권 내지 인권을 보호하는 적절한 배려가 필요하다. 행정법상 ‘기속과 재량’의 문제는 입법, 행정, 사법으로 이어지는, 법규범을 이용한 일련의 공동체적 의사결정과정에서, 특정 문제에 대한 결정권한의 분담을 어떤 방식으로 하는 것이, 그 결

The Supreme Court has continuously denied legally binding effect of civil penalty schedules which are parts of the Minister's Decree and which are enacted by the Minister under the delegation of the statute, while it has recognized legally binding effect of civil penalty schedules which are parts of the Presidential Decree under the same condition. These case law of the Supreme Court has been criticized by administrative law academics to be illogical and unconstitutional. Because the Constitutio