Minkee Choi
KAIST
152 Papers
436 Citations
Minkee Choi is an academic researcher from KAIST. The author has contributed to research in topics: Catalysis & Chemistry. The author has an hindex of 43, co-authored 132 publications. Previous affiliations of Minkee Choi include University of California, Berkeley & Inha University.
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Papers
Stable single-unit-cell nanosheets of zeolite MFI as active and long-lived catalysts
Minkee Choi,Kyungsu Na,Jeongnam Kim,Jeongnam Kim,Yasuhiro Sakamoto,Yasuhiro Sakamoto,Osamu Terasaki,Osamu Terasaki,Ryong Ryoo,Ryong Ryoo +9 more
TL;DR: It is shown that appropriately designed bifunctional surfactants can direct the formation of zeolite structures on the mesoporous and microporous length scales simultaneously and thus yield MFI (ZSM-5, one of the most important catalysts in the petrochemical industry) zeolites that are only 2 nm thick, which corresponds to the b-axis dimension of a single MFI unit cell.
2K
Amphiphilic organosilane-directed synthesis of crystalline zeolite with tunable mesoporosity
Minkee Choi,Hae Sung Cho,Rajendra Srivastava,Chithravel Venkatesan,Dae-Heung Choi,Ryong Ryoo +5 more
TL;DR: The synthesis of the crystalline aluminosilicate materials with tunable mesoporosity and strong acidity has potentially important technological implications for catalytic reactions of large molecules, whereas conventional mesoporous materials lack hydrothermal stability and acidity.
1.1K
Tuning selectivity of electrochemical reactions by atomically dispersed platinum catalyst
Chang Hyuck Choi,Minho Kim,Han Chang Kwon,Sung June Cho,Seongho Yun,Hee-Tak Kim,Karl Johann Jakob Mayrhofer,Karl Johann Jakob Mayrhofer,Karl Johann Jakob Mayrhofer,Hyungjun Kim,Minkee Choi +10 more
TL;DR: It is reported that a sulfur-doped zeolite-templated carbon, simultaneously exhibiting large sulfur content, as well as a unique carbon structure (that is, highly curved three-dimensional networks of graphene nanoribbons), can stabilize a relatively high loading of platinum in the form of highly dispersed species including site isolated atoms.
Effect of mesoporosity against the deactivation of MFI zeolite catalyst during the methanol-to-hydrocarbon conversion process
TL;DR: In this paper, the effects of mesoporosity on catalyst longevity of methanol-to-hydrocarbon (MTH) reactions have been investigated using a number of MFI zeolites with different degrees of mesophorosity, which were obtained via the post-synthetic desilication, dry-gel conversion in nanocarbon templates, and hydrothermal synthesis with the addition of organosilane surfactants.
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Microporosity and connections between pores in SBA-15 mesostructured silicas as a function of the temperature of synthesis
TL;DR: In this article, an image of the porous structure of SBA-15 and low-pressure argon adsorption was used to draw a coherent picture of the evolution of the precursor mesophase as a function of the synthesis temperature.
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