Spray drying of zeolitic imidazolate frameworks: investigation of crystal formation and properties

Somboon Chaemchuen; Kui Zhou; Bibimaryam Mousavi; Marzieh Ghadamyari; Philippe M. Heynderickx; Serge Zhuiykov; Mekhman S. Yusubov; Francis Verpoort

doi:10.1039/c8ce00392k

Transition from ZIF-L-Co to ZIF-67: a new insight into the structural evolution of zeolitic imidazolate frameworks (ZIFs) in aqueous systems

CrystEngComm ◽

10.1039/c5ce01531f ◽

2015 ◽

Vol 17 (43) ◽

pp. 8212-8215 ◽

Cited By ~ 59

Author(s):

Jingcheng Zhang ◽

Tianci Zhang ◽

Dongbo Yu ◽

Kesong Xiao ◽

Yu Hong

Keyword(s):

Crystal Growth ◽

Crystallization Process ◽

Structural Evolution ◽

Molar Ratio ◽

Transient Phase ◽

Zeolitic Imidazolate Frameworks ◽

Transformation Mechanism ◽

Initial Stage ◽

First Time ◽

Insight Into

A leaf-like ZIF-L-Co is synthesized for the first time and the molar ratio of Hmim/Co plays an important role in the synthesis. ZIF-L-Co is a transient phase at the initial stage of ZIF-67 crystal growth. The crystallization process of ZIF-67 from ZIF-L-Co follows a solid transformation mechanism.

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Influence of Metal Substitution on the Pressure-Induced Phase Change in Flexible Zeolitic Imidazolate Frameworks

10.26434/chemrxiv.7108706.v1 ◽

2018 ◽

Author(s):

C. Michael McGuirk ◽

Tomče Runčevski ◽

Julia Oktawiec ◽

Ari Turkiewicz ◽

mercedes K. taylor ◽

...

Keyword(s):

Phase Change ◽

Single Crystal ◽

Gas Adsorption ◽

High Capacity ◽

Phase Changes ◽

Zeolitic Imidazolate Frameworks ◽

Metal Substitution ◽

Heat Management ◽

Metal Organic ◽

First Time

Metal–organic frameworks that display step-shaped adsorption profiles arising from discrete pressure-induced phase changes are promising materials for applications in both high-capacity gas storage and energy-efficient gas separations. The thorough investigation of such materials through chemical diversification, gas adsorption measurements, and in situ structural characterization is therefore crucial for broadening their utility. We examine a series of isoreticular, flexible zeolitic imidazolate frameworks (ZIFs) of the type M(bim)2 (SOD; M = Zn (ZIF-7), Co (ZIF-9), Cd (CdIF-13); bim– = benzimidazolate), and elucidate the effects of metal substitution on the pressure-responsive phase changes and the resulting CO2 and CH4 step positions, pre-step uptakes, and step capacities. Using ZIF-7 as a benchmark, we reexamine the poorly understood structural transition responsible for its adsorption steps and, through high-pressure adsorption measurements, verify that it displays a step in its CH4 adsorption isotherms. The ZIF-9 material is shown to undergo an analogous phase change, yielding adsorption steps for CO2 and CH4 with similar profiles and capacities to ZIF-7, but with shifted threshold pressures. Further, the Cd2+ analogue CdIF-13 is reported here for the first time, and shown to display adsorption behavior distinct from both ZIF-7 and ZIF-9, with negligible pre-step adsorption, a ~50% increase in CO2 and CH4 capacity, and dramatically higher threshold adsorption pressures. Remarkably, a single-crystal-to-single-crystal phase change to a pore-gated phase is also achieved with CdIF-13, providing insight into the phase change that yields step-shaped adsorption in these flexible ZIFs. Finally, we show that the endothermic phase change of these frameworks provides intrinsic heat management during gas adsorption.

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Large-sized crystal growth and piezoelectric properties of the single crystals of LiNa5Mo9O30

CrystEngComm ◽

10.1039/d0ce01822h ◽

2021 ◽

Vol 23 (9) ◽

pp. 1912-1917

Author(s):

Xiaoli Du ◽

Fuan Liu ◽

Zeliang Gao ◽

Xiaojie Guo ◽

Xiangmei Wang ◽

...

Keyword(s):

Dipole Moment ◽

Crystal Growth ◽

Single Crystals ◽

Piezoelectric Properties ◽

First Time ◽

Octahedral Distortion

Single crystals of LiNa5Mo9O30 with seeds in the a-, b- and c-directions were successfully grown using the TSSG method. Full sets of dielectric, elastic and piezoelectric matrices of the crystal were determined first time. The octahedral distortion and dipole moment are calculated to explain the piezoelectric properties.

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Protein crystal lattices are dynamic assemblies: the role of conformational entropy in the protein condensed phase

IUCrJ ◽

10.1107/s2052252517017833 ◽

2018 ◽

Vol 5 (2) ◽

pp. 130-140 ◽

Cited By ~ 5

Author(s):

Margarita Dimova ◽

Yancho D. Devedjiev

Keyword(s):

Condensed Phase ◽

Protein Structures ◽

Van Der Waals Interactions ◽

Protein Crystal ◽

Crystal Formation ◽

Conformational Entropy ◽

Crystal Lattices ◽

Crystal Contacts ◽

First Time

Until recently, the occurrence of conformational entropy in protein crystal contacts was considered to be a very unlikely event. A study based on the most accurately refined protein structures demonstrated that side-chain conformational entropy and static disorder might be common in protein crystal lattices. The present investigation uses structures refined using ensemble refinement to show that although paradoxical, conformational entropy is likely to be the major factor in the emergence and integrity of the protein condensed phase. This study reveals that the role of shape entropy and local entropic forces expands beyond the onset of crystallization. For the first time, the complete pattern of intermolecular interactions by protein atoms in crystal lattices is presented, which shows that van der Waals interactions dominate in crystal formation.

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Fabrication of C60Fullerene Nanofibers by Volatile Diffusion Method

Journal of Nanomaterials ◽

10.1155/2013/646040 ◽

2013 ◽

Vol 2013 ◽

pp. 1-5 ◽

Cited By ~ 3

Author(s):

Bingzhe Wang ◽

Xin Gao ◽

Guangzhe Piao

Keyword(s):

Crystal Growth ◽

Self Assembly ◽

Growth Process ◽

Room Temperature ◽

Isopropyl Alcohol ◽

Diffusion Method ◽

Short Fibers ◽

Aspect Ratios ◽

Crystal Growth Process ◽

First Time

C60fullerene nanofibers (FNFs) were for the first time prepared by a volatile diffusion method using toluene as solvent and isopropyl alcohol as precipitation agent in room temperature, 25°C. FNFs with different lengths, aspect ratios, and morphologies could be fabricated by changing incubation time. Meanwhile, as for a crystal growth process, a possible mechanism of the formation of the crystal of FNFs was proposed in which the short and thin FNFs are the result of crystal growth, and self-assembly happens between the short fibers and thus leads to the formation of thick and long bundles of the FNFs.

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Phase evolution and crystal growth of VO2 nanostructures under hydrothermal reactions

RSC Advances ◽

10.1039/c5ra23898f ◽

2016 ◽

Vol 6 (9) ◽

pp. 7113-7120 ◽

Cited By ~ 15

Author(s):

Weilai Yu ◽

Shuai Li ◽

Chi Huang

Keyword(s):

Crystal Growth ◽

Phase Evolution ◽

Hydrothermal Conditions ◽

Hydrothermal Reactions ◽

First Time

The phase evolution and crystal growth of VO2 nanostructures under hydrothermal conditions was comprehensively investigated and the feasibility of the Ostwald's step rules towards VO2 polymorph evolution was for the first time demonstrated.

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Characteristic Comparison Between Ge-on-Insulator (GOI) and SI-on-Insulator (SOI) Beam-Induced Crystallization Mechanism

MRS Proceedings ◽

10.1557/proc-74-577 ◽

1986 ◽

Vol 74 ◽

Author(s):

El-Hang Lee ◽

M. Abdul Awal

Keyword(s):

Crystal Growth ◽

Crystallization Mechanism ◽

Material Systems ◽

Seeded Crystallization ◽

First Time ◽

Induced Crystallization ◽

Traditional Understanding

AbstractCharacteristics of beam-recrystallized Si-on-insulator (SOT) and Ge-on-insulator (GOI) material systems are compared for the first time to gain complementary understanding of the crystallization mechanism that would benefit both systems. In general, GOI has been found to behave quite differently from SOI. In SOI, Si yields sub-boundaries; in GOI, Ge generates twinned or faceted crystals. In GOI, too, sub-boundary-like features were observed, but only occasionally in the midst of twinned crystals. Also observed in GOI was the phenomenon of seeded crystallization breakdown, where defect-free crystals from the seed abruptly turn into defect-laced crystals at a certain distance from the seed. This phenomenon is highly characteristic in SOI, but has never been reported for GOI. These findings are compared and discussed in light of the traditional understanding of crystal growth.

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A surface-enhanced Raman scattering active core/shell structure based on enzyme-guided crystal growth for bisphenol A detection

Analytical Methods ◽

10.1039/c7ay02776a ◽

2018 ◽

Vol 10 (31) ◽

pp. 3878-3883 ◽

Cited By ~ 1

Author(s):

Zhou Xu ◽

Rong Wang ◽

Bo Mei ◽

Li Ding ◽

Libing Wang ◽

...

Keyword(s):

Crystal Growth ◽

Raman Scattering ◽

Surface Enhanced Raman Scattering ◽

Active Core ◽

Surface Enhanced ◽

Surface Enhanced Raman ◽

Sers Detection ◽

Enhanced Raman Scattering ◽

Bisphenol A Detection ◽

First Time

Herein, a universal surface-enhanced Raman scattering (SERS) detection platform based on enzyme-guided crystal growth has been fabricated for the first time.

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Crystal-plane-dependent effects of antifreeze glycoprotein impurity for ice growth dynamics

Philosophical Transactions of The Royal Society A Mathematical Physical and Engineering Sciences ◽

10.1098/rsta.2018.0393 ◽

2019 ◽

Vol 377 (2146) ◽

pp. 20180393 ◽

Cited By ~ 1

Author(s):

Yoshinori Furukawa ◽

Ken Nagashima ◽

Shunichi Nakatsubo ◽

Salvador Zepeda ◽

Ken-ichiro Murata ◽

...

Keyword(s):

Crystal Growth ◽

Growth Rates ◽

Space Station ◽

Supercooled Water ◽

Normal Growth ◽

Crystal Plane ◽

Impurity Effect ◽

Crystal Formation ◽

Ice Crystal ◽

Antifreeze Glycoprotein

An impurity effect on ice crystal growth in supercooled water is an important subject in relation to ice crystal formation in various conditions in the Earth's cryosphere regions. In this review, we consider antifreeze glycoprotein molecules as an impurity. These molecules are well known as functional molecules for controlling ice crystal growth by their adsorption on growing ice/water interfaces. Experiments on free growth of ice crystals in supercooled water containing an antifreeze protein were conducted on the ground and in the International Space Station, and the normal growth rates for the main crystallographic faces of ice, namely, basal and prismatic faces, were precisely measured as functions of growth conditions and time. The crystal-plane-dependent functions of AFGP molecules for ice crystal growth were clearly shown. Based on the magnitude relationship for normal growth rates among basal, prismatic and pyramidal faces, we explain the formation of a dodecahedral external shape of an ice crystal in relation to the key principle governing the growth of polyhedral crystals. Finally, we emphasize that the crystal-plane dependence of the function of antifreeze proteins on ice crystal growth relates to the freezing prevention of living organisms in sub-zero temperature conditions. This article is part of the theme issue ‘The physics and chemistry of ice: scaffolding across scales, from the viability of life to the formation of planets’.

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