Isobaric Thermal Expansion of Compressed 1,4-Dichlorobutane and 1-Bromo-4-chlorobutane: Transitiometric Results and a Novel Application of the General Density Scaling-Based Equation of State

Chorążewski, Mirosław; Grzybowski, Adam; Paluch, Marian

doi:10.1021/acs.iecr.5b00953

Cited by 23 publications

(13 citation statements)

References 42 publications

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“…Cu 2 (tebpz) MOF was synthesized according to the procedure described by Wang et al 26 The as-synthesized material was subjected to methanol solvent exchange and then thermally activated at 100 °C for 10 h before the water intrusion/extrusion experiments. An SN201202 28,29 transitiometer from BGR-Tech was used to record the PV-isotherms at various temperatures as well as VT-isobars at various pressures. The function of scanning transitiometry consists of scanning one of the three variables (pressure, volume, or temperature), while the other two are kept strictly constant.…”

Section: Methodsmentioning

confidence: 99%

Compact Thermal Actuation by Water and Flexible Hydrophobic Nanopore

et al. 2021

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Efficient and compact energy conversion is at the heart of the sustainable development of humanity. In this work it is demonstrated that hydrophobic flexible nanoporous materials can be used for thermal-to-mechanical energy conversion when coupled with water. In particular, a reversible nonhysteretic wetting−drying (contraction−expansion) cycle provoked by periodic temperature fluctuations was realized for water and a superhydrophobic nanoporous Cu 2 (tebpz) MOF (tebpz = 3,3′,5,5′-tetraethyl-4,4′-bipyrazolate). A thermal-tomechanical conversion efficiency of ∼30% was directly recorded by high-precision PVT-calorimetry, while the operational cycle was confirmed by in operando neutron scattering. The obtained results provide an alternative approach for compact energy conversion exploiting solid−liquid interfacial energy in nanoscopic flexible heterogeneous systems.

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Section: Methodsmentioning

confidence: 99%

Compact Thermal Actuation by Water and Flexible Hydrophobic Nanopore

et al. 2021

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“…The PV -isotherms were measured at a temperature of 295 K using three different sets of equipment. For the experiments which were conducted using the pressurization rate, R , within the range of 0.1–1 MPa min –1 a PVT -scanning transitiometer, constructed by BGR-Tech, was used at the University of Silesia in Katowice. , The liquid suspension samples were prepared by first weighing the solid into a Teflon capsule then submerging it into water. Negative relative pressure was applied to evacuate the gas from the capsule creating the suspension.…”

Section: Methodsmentioning

confidence: 99%

Effect of Flexibility and Nanotriboelectrification on the Dynamic Reversibility of Water Intrusion into Nanopores: Pressure-Transmitting Fluid with Frequency-Dependent Dissipation Capability

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Tsyrin

Chorążewski

et al. 2019

ACS Appl. Mater. Interfaces

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In this article, the effect of a porous material’s flexibility on the dynamic reversibility of a nonwetting liquid intrusion was explored experimentally. For this purpose, high-pressure water intrusion together with high-pressure in situ small-angle neutron scattering were applied for superhydrophobic grafted silica and two metal–organic frameworks (MOFs) with different flexibility [ZIF-8 and Cu2(tebpz) (tebpz = 3,3′,5,5′tetraethyl-4,4′-bipyrazolate)]. These results established the relation between the pressurization rate, water intrusion–extrusion hysteresis, and porous materials’ flexibility. It was demonstrated that the dynamic hysteresis of water intrusion into superhydrophobic nanopores can be controlled by the flexibility of a porous material. This opens a new area of applications for flexible MOFs, namely, a smart pressure-transmitting fluid, capable of dissipating undesired vibrations depending on their frequency. Finally, nanotriboelectric experiments were conducted and the results showed that a porous material’s topology is important for electricity generation while not affecting the dynamic hysteresis at any speed.

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“… 4 , 8 using the equipment described by Chorążewski et al . 39 , 40 located at the University of Silesia in Katowice, shown in Scheme 1 .…”

Section: Experimental Sectionmentioning

confidence: 99%

“…A transitiometer from BGR-Tech was used to record the pressure–volume ( PV ) isotherms at 65 °C within the 0.1–45 MPa pressure range while simultaneously recording the associated thermal effects according to the procedures described by Grosu et al . , using the equipment described by Chorążewski et al . , located at the University of Silesia in Katowice, shown in Scheme .…”

Section: Experimental Sectionmentioning

confidence: 99%

The Effect of Surface Entropy on the Heat of Non-Wetting Liquid Intrusion into Nanopores

et al. 2021

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On-demand access to renewable and environmentally friendly energy sources is critical to address current and future energy needs. To achieve this, the development of new mechanisms of efficient thermal energy storage (TES) is important to improve the overall energy storage capacity. Demonstrated here is the ideal concept that the thermal effect of developing a solid–liquid interface between a non-wetting liquid and hydrophobic nanoporous material can store heat to supplement current TES technologies. The fundamental macroscopic property of a liquid’s surface entropy and its relationship to its solid surface are one of the keys to predict the magnitude of the thermal effect by the development of the liquid–solid interface in a nanoscale environment—driven through applied pressure. Demonstrated here is this correlation of these properties with the direct measurement of the thermal effect of non-wetting liquids intruding into hydrophobic nanoporous materials. It is shown that the model can resonably predict the heat of intrusion into rigid mesoporous silica and some microporous zeolite when the temperature dependence of the contact angle is applied. Conversely, intrusion into flexible microporous metal–organic frameworks requires further improvement. The reported results with further development have the potential to lead to the development of a new supplementary method and mechanim for TES.

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Isobaric Thermal Expansion of Compressed 1,4-Dichlorobutane and 1-Bromo-4-chlorobutane: Transitiometric Results and a Novel Application of the General Density Scaling-Based Equation of State

Cited by 23 publications

References 42 publications

Compact Thermal Actuation by Water and Flexible Hydrophobic Nanopore

Compact Thermal Actuation by Water and Flexible Hydrophobic Nanopore

Effect of Flexibility and Nanotriboelectrification on the Dynamic Reversibility of Water Intrusion into Nanopores: Pressure-Transmitting Fluid with Frequency-Dependent Dissipation Capability

The Effect of Surface Entropy on the Heat of Non-Wetting Liquid Intrusion into Nanopores

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