Rational design of ionic V-MOF with confined Mo species for highly efficient oxidative desulfurization

Wang, Shuo; Zhang, Xu; Xue, Chuang; Zong, Meng-Ya; Fan, Caimei; Guo, Dongxue; Xu, Jun; Bu, Xian‐He

doi:10.1016/j.apcatb.2021.120594

Cited by 50 publications

(13 citation statements)

References 51 publications

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“…53 During the synthesis of V-MOF, in order to maintain charge balance, the V 4+ ions will not be further oxidized to V 5+ in large quantities because of the large amount of −OH on the surface of Ta 4 C 3 . 54 As displayed in Figure S4, the V-MOF@Ta 4 C 3 shows two stages of weight loss. First, a mass loss of about 40% is observed at a temperature of 300 °C, which is caused by the removal of the crystal water and oxygen-containing functional groups in the V-MOF@Ta 4 C 3 .…”

Section: Resultsmentioning

confidence: 94%

“…Then, TG shows that a rapid mass loss of V-MOF@Ta 4 C 3 occurred between 310 and 400 °C that can be attributed to the decomposing of the carbon skeleton around the VO 2 (B) framework . The in situ Raman spectra (Figure b) show that when the temperature reached 300 °C and was held for 10 min, the band corresponding to the layered structure of vanadium oxide appeared at 112 cm –1 , indicating that the skeleton of V-MOF in V-MOF@Ta 4 C 3 began to be destroyed at 300 °C . Further, the vibration mode belonging to V–O (A g ) gradually becomes stronger as the annealing procedure goes forward.…”

Section: Resultsmentioning

confidence: 99%

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Ta₄C₃-Modulated MOF-Derived 3D Crosslinking Network of VO₂(B)@Ta₄C₃ for High-Performance Aqueous Zinc Ion Batteries

Liu

Zong

et al. 2023

ACS Appl. Mater. Interfaces

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A two-dimensional MXene (Ta4C3) was innovatively used herein to modulate the space group and electronic properties of vanadium oxides, and the MXene/metal–organic framework (MOF) derivative VO2(B)@Ta4C3 with 3D network cross-linking was prepared, which was then employed as a cathode to improve the performance of aqueous zinc ion batteries (ZIBs). A novel method combining HCl/LiF and hydrothermal treatments was used to etch Ta4AlC3 to obtain a large amount of accordion-like Ta4C3, and the V-MOF was then hydrothermally grown on the surface of the stripped Ta4C3 MXene. During the annealing process of V-MOF@Ta4C3, the addition of Ta4C3 MXene liberates the V-MOF from agglomerative stacking, allowing it to show additional active sites. More significantly, Ta4C3 prevents the V-MOF in the composite structure from converting into V2O5 of space group Pmmn but into VO2(B) of space group C2/m after annealing. A considerable advantage of VO2(B) for Zn2+ intercalation is provided by the negligible structural transformation during the intercalation process and the special tunnel transport channels, which have an enormous area (0.82 nm2 along the b axis). According to first-principles calculations, there is a strong interfacial interaction between VO2(B) and Ta4C3, which deliver remarkable electrochemical activity and kinetic performances for the storage of Zn2+. Therefore, the ZIBs prepared with the VO2(B)@Ta4C3 cathode material exhibit an ultra-high capacity of 437 mA h·g–1 at 0.1 A·g–1 while showing good cycle performance and dynamic performance. This study will offer a fresh approach and a reference for creating metal oxide/MXene composite structures.

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Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Ta₄C₃-Modulated MOF-Derived 3D Crosslinking Network of VO₂(B)@Ta₄C₃ for High-Performance Aqueous Zinc Ion Batteries

Liu

Zong

et al. 2023

ACS Appl. Mater. Interfaces

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“…Heteropoly acid (HPA) is a unique type of a nanometal oxygen cluster. Due to its nanosize, strong acidity, appropriate charge distribution, and rapid reversible electron conversion under mild conditions, HPA has been widely used as an excellent catalyst in many oxidation reactions. − In recent years, HPA, such as phosphotungstic acid (PTA), has also been successfully developed as a potential catalyst for H 2 O 2 activation. , However, due to their high solubility in polar solvents and difficult recycling, their industrial application has been seriously limited. , An effective way to solve these shortcomings is to immobilize active PTA on a suitable carrier to form a heterogeneous catalyst. , In recent years, many researchers have used MOFs as a carrier and incorporated PTA into the pores of metal-organic frameworks to design heterogeneous PTA-based catalysts. Among them, Zr-based MOFs (Zr-MOFs) have attracted the attention of many researchers in recent years because of their high-density unsaturated metal defect sites and strong Lewis acidic sites.…”

Section: Introductionmentioning

confidence: 99%

Novel High-Activity Al₂O₃@Zr_XPTA Catalysts and Their Catalytic Oxidative Desulfurization, Mechanism, and Molding

Wang

Zhong

et al. 2023

Ind. Eng. Chem. Res.

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Deep desulfurization of fuel oil is always a highly challenging issue. In this work, Zr X PTA material was obtained by directly combining the ZrIV active site with PTA, and it was found that Zr X PTA has excellent catalytic activity in the oxidative desulfurization (ODS) process. Further, Zr X PTA was loaded on γ-Al2O3 by the two-step impregnation to obtain a granular Al2O3@Zr X PTA composite. The successful synthesis of the material was verified by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS), and N2 adsorption–desorption. The results show that Al2O3@Zr X PTA maintains the high ODS activity of Zr X PTA and realizes the rapid and complete removal of dibenzothiophene under mild reaction conditions (T = 40 °C, O/S = 4, t = 30 min). The mechanism study shows that the ODS activity of Al2O3@Zr X PTA is wholly derived from the counterpart of Zr X PTA, which benefits from the synergistic catalytic effect between the ZrIV active site and PTA. The direct binding of these two active sites makes the synergistic effect fully exerted. In addition, the recovery of Al2O3@Zr X PTA can be easily realized by simple filtration or decantation, and no significant activity loss was observed after five times recycling. Therefore, Al2O3@Zr X PTA has high ODS activity, high catalytic stability, and great potential as an ODS catalyst in practical applications.

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“…In terms of achieving functional materials with task-specific functionality, the development of composite materials has drawn attention via assembling various constituents at atomic and molecular levels. Metal–organic frameworks (MOFs) have well-developed porosity, ordered structures, and various morphologies, resulting in their extensive utilization in sorption, , sensor, − and heterogeneous catalysis. − Unfortunately, the poor electrochemical activity and stability of MOFs significantly limit their use in electrochemical analysis. Hence, various materials have been implemented to combine with MOFs for enhanced electrochemical activity, such as metal nanoparticles, graphene, , and carbon nanotubes .…”

Section: Introductionmentioning

confidence: 99%

Incorporating Fullerenes in Nanoscale Metal–Organic Matrixes: An Ultrasensitive Platform for Impedimetric Aptasensing of Tobramycin

Zhang

Han

et al. 2022

ACS Appl. Mater. Interfaces

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nanocomposites serve as greatly promising materials to modify electrodes and fix aptamers, resulting in a remarkable electrochemical aptasensor for impedimetric sensing of tobramycin (TOB). Nanoscale composites have preferable electroactivity and small particle size with more exposed functional sites, such as Zr(IV) and −NH 2 , to immobilize aptamers for enhanced detection performance. As we know, most of the electrochemical impedance aptasensors require a long time to complete the detection process, but this prepared biosensor shows the rapid quantitative identification of target TOB within 4 min. This work expands the synthesis of functional fullerene@metal−organic matrix hybrid materials in electrochemical biosensing applications.

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Rational design of ionic V-MOF with confined Mo species for highly efficient oxidative desulfurization

Cited by 50 publications

References 51 publications

Ta₄C₃-Modulated MOF-Derived 3D Crosslinking Network of VO₂(B)@Ta₄C₃ for High-Performance Aqueous Zinc Ion Batteries

Ta₄C₃-Modulated MOF-Derived 3D Crosslinking Network of VO₂(B)@Ta₄C₃ for High-Performance Aqueous Zinc Ion Batteries

Novel High-Activity Al₂O₃@Zr_XPTA Catalysts and Their Catalytic Oxidative Desulfurization, Mechanism, and Molding

Incorporating Fullerenes in Nanoscale Metal–Organic Matrixes: An Ultrasensitive Platform for Impedimetric Aptasensing of Tobramycin

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Rational design of ionic V-MOF with confined Mo species for highly efficient oxidative desulfurization

Cited by 50 publications

References 51 publications

Ta4C3-Modulated MOF-Derived 3D Crosslinking Network of VO2(B)@Ta4C3 for High-Performance Aqueous Zinc Ion Batteries

Ta4C3-Modulated MOF-Derived 3D Crosslinking Network of VO2(B)@Ta4C3 for High-Performance Aqueous Zinc Ion Batteries

Novel High-Activity Al2O3@ZrXPTA Catalysts and Their Catalytic Oxidative Desulfurization, Mechanism, and Molding

Incorporating Fullerenes in Nanoscale Metal–Organic Matrixes: An Ultrasensitive Platform for Impedimetric Aptasensing of Tobramycin

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Product

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Ta₄C₃-Modulated MOF-Derived 3D Crosslinking Network of VO₂(B)@Ta₄C₃ for High-Performance Aqueous Zinc Ion Batteries

Ta₄C₃-Modulated MOF-Derived 3D Crosslinking Network of VO₂(B)@Ta₄C₃ for High-Performance Aqueous Zinc Ion Batteries

Novel High-Activity Al₂O₃@Zr_XPTA Catalysts and Their Catalytic Oxidative Desulfurization, Mechanism, and Molding