Adsorptive Desulfurization of Liquid Hydrocarbons Utilizing Granular Cu/Cr-BDC@γ-Al<sub>2</sub>O<sub>3</sub> Bimetal-Organic Frameworks

Nejatbakhsh, Siyamak; Aghdasinia, Hassan; Farshchi, Mahdi Ebrahimi; Azimi, Babak; Karimi, Afzal

doi:10.1021/acs.iecr.2c01491

Cited by 23 publications

(4 citation statements)

References 45 publications

(90 reference statements)

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“…Figure S5a represents the FT-IR spectra of prepared Cu-BDC and NiMo/Cu-BDC composite. The two sharp characteristic bands at 1386 and 1608 cm –1 are indexed to the symmetric and asymmetric stretching modes of −COOH, respectively. , The peaks at 829 and 887 cm –1 correspond to the out-of-plane and in-plane aromatic C–H bending. , The bands at 755 and 1501 cm –1 are related to the phenyl ring. , The observed peaks at 458 and 567 cm –1 can be considered as the stretching vibration peaks of Cu–O. , The small peak at about 2900 cm –1 is attributed to the aromatic −C–H stretching vibration . The band at 1666 cm –1 is assigned to the carbonyl group in DMF .…”

Section: Results and Discussionmentioning

confidence: 99%

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In Situ Design of a Nanostructured Interface between NiMo and CuO Derived from Metal–Organic Framework for Enhanced Hydrogen Evolution in Alkaline Solutions

Sadeghi,

Chamani,

Yildirim

et al. 2024

ACS Appl. Mater. Interfaces

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Hydrogen shows great promise as a carbon-neutral energy carrier that can significantly mitigate global energy challenges, offering a sustainable solution. Exploring catalysts that are highly efficient, cost-effective, and stable for the hydrogen evolution reaction (HER) holds crucial importance. For this, metal−organic framework (MOF) materials have demonstrated extensive applicability as either a heterogeneous catalyst or catalyst precursor. Herein, a nanostructured interface between NiMo/ CuO@C derived from Cu-MOF was designed and developed on nickel foam (NF) as a competent HER electrocatalyst in alkaline media. The catalyst exhibited a low overpotential of 85 mV at 10 mA cm −2 that rivals that of Pt/C (83 mV @ 10 mA cm −2 ). Moreover, the catalyst's durability was measured through chronopotentiometry at a constant current density of −30, −100, and −200 mA cm −2 for 50 h each in 1.0 M KOH. Such enhanced electrocatalytic performance could be ascribed to the presence of highly conductive C and Cu species, the facilitated electron transfer between the components because of the nanostructured interface, and abundant active sites as a result of multiple oxidation states. The existence of an ionized oxygen vacancy (O v ) signal was confirmed in all heat-treated samples through electron paramagnetic resonance (EPR) analysis. This revelation sheds light on the entrapment of electrons in various environments, primarily associated with the underlying defect structures, particularly vacancies. These trapped electrons play a crucial role in augmenting electron conductivity, thereby contributing to an elevated HER performance.

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Section: Results and Discussionmentioning

confidence: 99%

“… 39 , 40 The peaks at 829 and 887 cm –1 correspond to the out-of-plane and in-plane aromatic C–H bending. 11 , 41 The bands at 755 and 1501 cm –1 are related to the phenyl ring. 42 , 43 The observed peaks at 458 and 567 cm –1 can be considered as the stretching vibration peaks of Cu–O.…”

Section: Results and Discussionmentioning

confidence: 99%

In Situ Design of a Nanostructured Interface between NiMo and CuO Derived from Metal–Organic Framework for Enhanced Hydrogen Evolution in Alkaline Solutions

Sadeghi,

Chamani,

Yildirim

et al. 2024

ACS Appl. Mater. Interfaces

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“…Sulfur-containing hydrocarbons (Figure ) − emit sulfur oxides (SO x ) during combustion, which harm human health and destroy the environment. Researchers have developed various desulfurization technologies, such as extraction, ,− adsorption, − oxidation, − and a combination of these methodologies to overcome the above-mentioned problems. − …”

Section: Heterocyclic Compound Extraction Using Ilsmentioning

confidence: 99%

Hydrocarbon Extraction with Ionic Liquids

Yu,

Dai,

Liu

et al. 2024

Chem. Rev.

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Separation and reaction processes are key components employed in the modern chemical industry, and the former accounts for the majority of the energy consumption therein. In particular, hydrocarbon separation and purification processes, such as aromatics extraction, desulfurization, and denitrification, are challenging in petroleum refinement, an industrial cornerstone that provides raw materials for products used in human activities. The major technical shortcomings in solvent extraction are volatile solvent loss, product entrainment leading to secondary pollution, low separation efficiency, and high regeneration energy consumption due to the use of traditional organic solvents with high boiling points as extraction agents. Ionic liquids (ILs), a class of designable functional solvents or materials, have been widely used in chemical separation processes to replace conventional organic solvents after nearly 30 years of rapid development. Herein, we provide a systematic and comprehensive review of the state-of-the-art progress in ILs in the field of extractive hydrocarbon separation (i.e., aromatics extraction, desulfurization, and denitrification) including (i) molecular thermodynamic models of IL systems that enable rapid large-scale screening of IL candidates and phase equilibrium prediction of extraction processes; (ii) structure–property relationships between anionic and cationic structures of ILs and their separation performance (i.e., selectivity and distribution coefficients); (iii) IL-related extractive separation mechanisms (e.g., the magnitude, strength, and sites of intermolecular interactions depending on the separation system and IL structure); and (iv) process simulation and design of IL-related extraction at the industrial scale based on validated thermodynamic models. In short, this Review provides an easy-to-read exhaustive reference on IL-related extractive separation of hydrocarbon mixtures from the multiscale perspective of molecules, thermodynamics, and processes. It also extends to progress in IL analogs, deep eutectic solvents (DESs) in this research area, and discusses the current challenges faced by ILs in related separation fields as well as future directions and opportunities.

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“…Nowadays, in several scientific fields, nanoparticles with nanosized particles smaller than 100 nm have been extensively examined [6]. Also, metal nanoparticles such as Ag [7], Cu [8], and Al [9], metal oxide such as Fe 3 O 4 [10,11], Al 2 O 3 [12], and TiO 2 [13], carbon-based nanoparticles such as graphene [14], and multiwalled carbon nanotubes (MWCNTs) [15] are among the most common nanoparticles. For enhancing heat transfer, graphene and carbon nanotubes have greater thermophysical characteristics than other nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Effect of Graphene/Water Nanofluid on the Heat Transfer of a Shell-and-Tube Heat Exchanger

Zolfalizadeh

Heris

Pourpasha

et al. 2023

International Journal of Energy Research

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The most common type of heat exchanger used in a variety of industrial applications is the shell-and-tube heat exchanger (STHE). In this work, the impact of graphene nanoplate (GNP)/water nanofluids at 0.01 wt.%, 0.03 wt.%, and 0.06 wt.% on the thermal efficiency, thermal performance factor, pressure drop, overall heat transfer, convective heat transfer coefficient (CVHTC), and heat transfer characteristics of a shell-and-tube heat exchanger was examined. For these experiments, a new STHE was designed and built. The novelty of this study is the use of GNPs/water nanofluids in this new STHE for the first time and the fully experimental investigation of the attributes of nanofluids. GNP properties were analysed and confirmed using analyses including XRD and TEM. Zeta potential, DLS, and camera images were used to examine the stability of nanofluids at various periods. The zeta potential of the nanofluids was lower than -27.8 mV, confirming the good stability of GNP/water nanofluids. The results illustrated that the experimental data for distilled water had a reasonably good agreement with Sieder-Tate correlation. The maximum enhancement in the CVHTC of nanofluid with 0.06 wt.% of GNP, was equal to 910 (W/m2K), an increase of 22.47%. Also, the efficiency of the heat exchanger for nanofluid at 0.06 wt.% improved by 8.88% compared with that of the base fluid. The heat transfer rate of the nanofluid at maximum concentration and volume flow rate was 3915 (J/kg.K), an improvement of 15.65% over the base fluid. The pressure drops increased as the flow rate and concentration of the nanofluid increased. Although increasing the pressure drop in tubes would increase the CVHTC, it would also increase the power consumption of the pump. In conclusion, nanofluid at 0.06 wt.% had good performance.

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Adsorptive Desulfurization of Liquid Hydrocarbons Utilizing Granular Cu/Cr-BDC@γ-Al₂O₃ Bimetal-Organic Frameworks

Cited by 23 publications

References 45 publications

In Situ Design of a Nanostructured Interface between NiMo and CuO Derived from Metal–Organic Framework for Enhanced Hydrogen Evolution in Alkaline Solutions

In Situ Design of a Nanostructured Interface between NiMo and CuO Derived from Metal–Organic Framework for Enhanced Hydrogen Evolution in Alkaline Solutions

Hydrocarbon Extraction with Ionic Liquids

Experimental Investigation of the Effect of Graphene/Water Nanofluid on the Heat Transfer of a Shell-and-Tube Heat Exchanger

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Adsorptive Desulfurization of Liquid Hydrocarbons Utilizing Granular Cu/Cr-BDC@γ-Al2O3 Bimetal-Organic Frameworks

Cited by 23 publications

References 45 publications

In Situ Design of a Nanostructured Interface between NiMo and CuO Derived from Metal–Organic Framework for Enhanced Hydrogen Evolution in Alkaline Solutions

In Situ Design of a Nanostructured Interface between NiMo and CuO Derived from Metal–Organic Framework for Enhanced Hydrogen Evolution in Alkaline Solutions

Hydrocarbon Extraction with Ionic Liquids

Experimental Investigation of the Effect of Graphene/Water Nanofluid on the Heat Transfer of a Shell-and-Tube Heat Exchanger

Contact Info

Product

Resources

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Adsorptive Desulfurization of Liquid Hydrocarbons Utilizing Granular Cu/Cr-BDC@γ-Al₂O₃ Bimetal-Organic Frameworks