Expansion of the ADOR Strategy for the Synthesis of Zeolites: The Synthesis of IPC‐12 from Zeolite UOV

Abstract

The assembly–disassembly–organization–reassembly (ADOR) process has been used to disassemble a parent zeolite with the UOV structure type and then reassemble the resulting layers into a novel structure, IPC‐12. The structure of the material has previously been predicted computationally and confirmed in our experiments using X‐ray diffraction and atomic resolution STEM‐HAADF electron microscopy. This is the first successful application of the ADOR process to a material with porous layers.

Topotactic Conversion of Alkali‐Treated Intergrown Germanosilicate CIT‐13 into Single‐Crystalline ECNU‐21 Zeolite as Shape‐Selective Catalyst for Ethylene Oxide Hydration

“…Crystallographic image processing of the HRTEM images was carried out by using the CRISP program. [26] Catalytic reactions:T he catalytic hydration of various epoxides (ethylene oxide, epoxypropane, 1,2-epoxybutane, 1,2-epoxypentane, and 1,2-epoxyhexane) was performed under vigorous stirring in aT eflon-lined autoclave reactor.I nat ypical experiment, am ixture of the catalyst (0.3 g), epoxide (10 mmol), and H 2 O( 150 mmol) was vigorously stirred at 333 K. The effects of both the reaction temperature (293-353 K) and H 2 O/EO molar ratio (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) on the catalytic performance of ECNU-21 in the hydration of ethylene oxide (EO) hydration were also investigated.…”

Building Zeolites from Precrystallized Units: Nanoscale Architecture

“…[120,125] Morris,Cejka, and co-workers have expanded the ADOR method beyond UTL-based germanosilicates to the use of other germanosilcate laye materials,s uch as ITQ-22 (IWW, 12 10 8-rings), [126] IM-17 (UOV, 12 10 8-rings), [127] and CIT-5 (CFI, 14-rings), [128] as the crystalline precursors to achieve the synthesis of new zeolite frameworks,i ncluding IPC-12 (12 8-rings), IPC-15 (10-rings), and IPC-16 (12-rings; Figure 23). Once the layers have been separated by exfoliation, the interlayer manipulations described previously in the cases of MWW and FER families can be applied.…”

“…Once the layers have been separated by exfoliation, the interlayer manipulations described previously in the cases of MWW and FER families can be applied. [120,125] Morris,Cejka, and co-workers have expanded the ADOR method beyond UTL-based germanosilicates to the use of other germanosilcate laye materials,s uch as ITQ-22 (IWW, 12 10 8-rings), [126] IM-17 (UOV, 12 10 8-rings), [127] and CIT-5 (CFI, 14-rings), [128] as the crystalline precursors to achieve the synthesis of new zeolite frameworks,i ncluding IPC-12 (12 8-rings), IPC-15 (10-rings), and IPC-16 (12-rings; Figure 23). [128]…”

A Complex Zeolite Containing Multiple Ring Sizes in a Single Channel: One‐Dimensional Zeolite UZM‐55

“…LID criteria are ac ritical component in understanding whether as tructure solution is reasonable. While certain newer materials such as IPC-9a nd IPC-10 synthesized via selective dissolution/r eassembly methods such as ADOR [26,27] do not meet previously established criteria involving ar elationship between energy and framework density,t hey still satisfyt he first 3L ID criteria having to do with bond lengthsa nd angles. [25,28] UZM-55 has been directly synthesized using traditional methods and should meet all 5L ID criteria,t he 5 th of which relates to whether the zeolites tructure should be synthetically realizable (Table S1).…”