Zobrazeno 1 - 10
of 287
pro vyhledávání: '"Suk Bong Hong"'
Autor:
Yiqing Wu, Wenru Zhao, Sang Hyun Ahn, Yilin Wang, Eric D. Walter, Ying Chen, Miroslaw A. Derewinski, Nancy M. Washton, Kenneth G. Rappé, Yong Wang, Donghai Mei, Suk Bong Hong, Feng Gao
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-13 (2023)
Abstract Low-temperature standard NH3-SCR over copper-exchanged zeolite catalysts occurs on NH3-solvated Cu-ion active sites in a quasi-homogeneous manner. As key kinetically relevant reaction steps, the reaction intermediate CuII(NH3)4 ion hydrolyze
Externí odkaz:
https://doaj.org/article/d6d87219e0814caca4527f7a5efe4792
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
Zeolites have pore structures that are attractive for shape-selective catalysis and separation, but targeted synthesis is challenging. Here, the authors propose using a 3D-3D topotactic transformation to synthesize targeted zeolites, including some t
Externí odkaz:
https://doaj.org/article/1a230c12492f47cca80152639ef57d53
Publikováno v:
Catalysis Science & Technology; 4/7/2024, Vol. 14 Issue 7, p1923-1930, 8p
Autor:
Suk Bong Hong, Donghui Jo
Publikováno v:
Inorganic Chemistry Frontiers. 9:127-135
We recently reported the synthesis of three high-silica (Si/Al ∼ 10) zeolites with new framework structures (i.e., PST-21, PST-22, and PST-30) via an excess fluoride approach which uses synthesis mixtures with HF/OSDAn+ = 2/n (n = 1 or 2). However,
Publikováno v:
Catalysis Today. 376:41-46
The preparation method effect on the catalytic properties and hydrothermal stability of copper-loaded LTA (Cu-LTA) zeolites for the selective catalytic reduction of NOx with NH3 (NH3-SCR) has been investigated. Copper nitrate and liquid-state ion exc
Publikováno v:
Applied Catalysis B: Environmental. 329:122552
Publikováno v:
Chemical science. 13(35)
The search for new zeolite structures and compositions remains important in synthetic materials science due to the high impact on developing new chemical technologies, as well as on improving existing ones. Herein we present the synthesis and structu
Publikováno v:
ACS Materials Letters. 3:308-312
RHO-, KFI-, and OFF-type zeolites have been synthesized using tetraethylammnoium ions as an organic structure-directing agent via a multiple inorganic cation approach. Under the synthesis condition...
Publikováno v:
Chemical Science
One of the most fundamental but yet unanswered questions in the synthesis of zeolites and zeolite-like materials is whether or not any parameter controlling the microporosity of the crystallized product from synthesis mixtures with feasible chemical
Publikováno v:
Angewandte Chemie International Edition. 60:4307-4314
The CO2 adsorption behavior at 25-75 °C and 0-1.0 bar of various alkali cation-exchanged forms of merlinoite (framework type MER) zeolites with Si/Al=2.3 and 3.8 is described. The adsorption isotherms at 25 °C on the Na+ , K+ , Rb+ , and Cs+ forms