X-ray Powder Diffractometer Research Articles

The electrorheological response behavior of small coral-like H2Ti2O5@SiO2 core-shell nanoparticles

BackgroundElectrorheological (ER) fluid is an important smart material that can respond to external electric field. The purpose of this work is to synthesize stronger ER nanomaterial. MethodIn this work, small coral-like H2Ti2O5 particles were prepared by hydrothermal method, SiO2 was uniformly grown on H2Ti2O5 through controlled hydrolysis, and H2Ti2O5@SiO2 core-shell nanocomposite was synthesized and used as ER material. The morphological evolution, structure and chemical composition of materials were studied by Scanning electron microscope (SEM), Transmission electron microscope (TEM), X-ray powder diffractometer (XRD), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS). At the same time, dielectric and ER measurement results confirm that H2Ti2O5@SiO2 core-shell-based ER fluid has higher polarization strength and proper dielectric relaxation, which improves interface polarization and ER characteristics. ResultsThe ER results show that the ER efficiency after SiO2 coating is significantly improved, especially under higher applied electric field strength: when the voltage is 3 kV and the shear rate is 0.1 s−1, the ER efficiency can reach 160.84. Dielectric spectroscopy results show that H2Ti2O5@SiO2 fluid has a fast response time and a large difference in dielectric constant. It is a promising ER fluid material.

Synthesis, Computational Pharmacokinetics Report, Conceptual DFT-Based Calculations and Anti-Acetylcholinesterase Activity of Hydroxyapatite Nanoparticles Derived From Acorus Calamus Plant Extract.

Over the years, Alzheimer’s disease (AD) treatments have been a major focus, culminating in the identification of promising therapeutic targets. A herbal therapy approach has been required by the demand of AD stage-dependent optimal settings. Present study describes the evaluation of anti-acetylcholinesterase (AChE) activity of hydroxyapatite nanoparticles derived from an Acorus calamus rhizome extract (AC-HAp NPs). The structure and morphology of as-prepared (AC-HAp NPs) was confirmed using powder X-ray diffractometer (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HR-TEM). The crystalline nature of as-prepared AC-HAp NPs was evident from XRD pattern. The SEM analysis suggested the spherical nature of the synthesized material with an average diameter between 30 and 50 nm. Further, the TEM and HR-TEM images revealed the shape and size of as-prepared (AC-HAp NPs). The interplanar distance between two lattice fringes was found to be 0.342 nm, which further supported the crystalline nature of the material synthesized. The anti-acetylcholinesterase activity of AC-HAp NPs was greater as compared to that of pure HAp NPs. The mechanistic evaluation of such an activity carried out using in silico studies suggested that the anti-acetylcholinesterase activity of phytoconstituents derived from Acorus calamus rhizome extract was mediated by BNDF, APOE4, PKC-γ, BACE1 and γ-secretase proteins. The global and local descriptors, which are the underpinnings of Conceptual Density Functional Theory (CDFT), have been predicted through the MN12SX/Def2TZVP/H2O model chemistry to help in the comprehension of the chemical reactivity properties of the five ligands considered in this study. With the further objective of analyzing their bioactivity, the CDFT studies are complemented with the estimation of some useful computed pharmacokinetics indices, their predicted biological targets, and the ADMET parameters related to the bioavailability of the five ligands are also reported.

Ecofriendly Ultrasonic Rust Removal: An Empirical Optimization Based on Response Surface Methodology

This study shows that the hard-to-remove rust layer on the guide sleeve surface of a used cylinder can be removed using a specially developed, environmentally friendly formula for cleaning rust. Furthermore, we studied the rust removal technology that is based on ultrasonic cavitation and chemical etching. The surface morphology and structural components of the rust layer were observed using an electron microscope and an X-ray powder diffractometer. These tools were used to explore the mechanism of combined rust removal. Using response surface methodology (RSM) and central composite design (CCD), with the rust removal rate as our index of evaluation, data were analyzed to establish a response surface model that can determine the effect of cleaning temperature and ultrasonic power interaction on the rate of rust removal. Results showed that the main components of the rust layer on a 45 steel guide sleeve were α-FeOOH, γ-FeOOH, and Fe3O4. The rust was unevenly distributed with a loose structure, which was easily corroded by chemical reagents and peeled off under ultrasonic cavitation. With the increase in the cleaning temperature, the chemical reaction effect was intensified, and the cleaning ability was enhanced. With the increase in ultrasonic power, the cavitation effect was aggravated, the ultrasonic agitation was enhanced, and the rust removal rate was improved. According to response surface analysis and the application scope of the rust remover, we determined that the optimal cleaning temperature is 55 °C, and that the optimal ultrasonic power is 2880 W. The descaling rate under these parameters is 0.15 g·min−1·m−2.

Application of up-conversion molecularly imprinted nanoprobe for selective recognition and straightforward detection of 4-aminobiphenyl

A new method was developed for selectively and rapidly detecting carcinogen 4-aminobiphenyl, with lower limit of detection and wider linear range. Up-conversion nanoparticles β-NaGdF4:Yb3+, Er3+ was the first time to choose as light-emitting signal component. Molecularly imprinted polymers (MIPs) with specific recognition ability were successfully coated on the surface of β-NaGdF4:Yb3+, Er3+ to obtain a nano fluorescent probe for detecting 4-aminobiphenyl. The effect of addition amount of β-NaGdF4:Yb3+, Er3+ on the detection ability of β-NaGdF4:Yb3+, Er3+@MIPs was studied, and composite fluorescence nanoprobe with the best performance was obtained. β-NaGdF4:Yb3+, Er3+@MIPs were characterized by transmission electron microscopy, X-ray powder diffractometer, Fourier transform infrared spectroscopy and thermogravimetric analysis. The fluorescence intensity of β-NaGdF4:Yb3+, Er3+@MIPs decreased significantly compared with molecularly non-imprinted polymers β-NaGdF4:Yb3+, Er3+@NIPs (the maximum emission peak is at 541 nm) in the presence of 4-aminobiphenyl. Adsorption isotherm and adsorption kinetics between UCNP@MIPs and 4-ABP have been investigated and a satisfactory imprinting factor is 2.5. The detection mechanism is proved to be based on Langmuir adsorption and internal filtration effect. Under optimal experimental conditions, the limit of detection and quantification are 0.16 μM and 0.53 μM, respectively. The linear range of response is 1–50 μM, and RSD is less than 6.7%. This method was applied to determining river water samples in order to evaluate the practicability, and the good recovery rate is between 98.89% and 109.7%. These evidences demonstrate that β-NaGdF4:Yb3+, Er3+@MIPs is successfully used for the detection of 4-aminobiphenyl.

A comparative analysis of structural properties on single and poly-crystalline potassium sulfate crystals at shock wave loaded conditions

In recent years, the investigation of the effect of shock waves on crystalline materials has emerged as a prolific research area in materials science branch. The impact of shock waves on K2SO4 was investigated such that the molecular and structural stabilities under pre and post-shock wave loaded conditions at Mach number 2.2 with 50 and 100 shocks were established. Molecular stability of the test samples has been identified making use of FTIR spectrometer and the structural stability of the samples has been investigated by a Powder X-ray diffractometer (PXRD) which reveals that shock waves induce lattice orientational changes and micro distortions but, the original crystal system is not affected. The above-mentioned crystallographic studies show the impressive physical properties of K2SO4 which also has a stable crystal structure under shock wave loaded conditions. A comparison of single and poly-crystalline structural responses has been made with respect to the number of shock pulses. The fascinating findings of the shock wave impacts on K2SO4 samples are clearly discussed in this article.

Structural, magnetic and magnetocaloric properties of TMCeFeO4 (TM = Mn, Co) spinel ferrites powders

In this paper, a successfully synthesized TMCeFeO4 (TM = Mn, Co) by the sol–gel technique has been studied in detail. The structural, magnetic and magnetocaloric properties are performed using an X-ray powder diffractometer and a vibrating sample magnetometer (VSM). X-ray diffraction (XRD) analysis shows that both samples belong to the Fd-3m space group of the cubic spinel crystal system. Moreover, the calculated lattice parameters of MnCeFeO4 and CoCeFeO4 samples are found to be 8.409Å and 8.397Å, respectively. On the other hand, temperature and field dependent magnetization curves demonstrate that both samples exhibit a second-order ferromagnetic (FM)-paramagnetic (PM) phase transition at TC=640K and 630K for MnCeFeO4 and CoCeFeO4, respectively. The maximum of magnetic entropy change -ΔSMmax, calculated from Maxwell relation at an applied magnetic field change of μ0ΔH=5T, are found to be 0.404 and 0.463JKg-1K-1 corresponding to relative cooling powers (RCPs) about 41.62 and 41.53JKg-1 for MnCeFeO4 and CoCeFeO4, respectively.

Tuning adsorption capacity of metal–organic frameworks with Al3+ for phosphorus removal: Kinetics, isotherm and regeneration

The separation and recycling of phosphate from sewage are indispensable to be explored due to eutrophication and phosphorus deficiency. Herein, iron-aluminum metal organic framework (Fe-Al-MOF) was successfully synthesized via solvothermal one-step treatment. The Fe-Al-MOF was measured using scanning electron microscopy (SEM), infrared spectrometry (IR), thermogravimetric analysis (TGA) and X-ray powder diffractometer (XRD). Fe-Al-MOF was selected to explore phosphate adsorption performance and its mechanism. The results showed that Fe-Al-MOF adsorbent demonstrated an excellent phosphate sorption capacity of 38.33 mg P/L, strong interference immunity in the presence of co-existing ions and optimal pH adapted to real wastewater. The experimental data was in accordance with the Langmuir model and the pseudo-second-order model, indicating monolayer adsorption as well as physical and chemical adsorption. More importantly, Fe-Al-MOF could reserve over 80% after four continuous regeneration cycles in comparison with the first adsorption capacity, showing its economics. A series of characterizations declared that chemical adsorption, ligand exchange and electrostatic attraction were main adsorption mechanisms by Fe-Al-MOF. Overall, Fe-Al-MOF has high stability, good reusability and high economy to apply for controlling wastewater and eutrophication.

Systematic thermodynamic analysis of apremilast polymorphs via solubility measurement with modeling: Mechanism evaluation through molecular simulation

The polymorphism of apremilast has been investigated. Two polymorphs have been identified and characterized by differential scanning calorimeter, fourier transform infrared spectroscopy, and powder X-ray diffractometer. Solubilities of apremilast forms B and E in three binary solvents of methanol-water, acetonitrile-water, and acetonitrile-methanol have been measured using the static method at a temperature ranging from 288.15 K to 328.15 K under standard atmospheric pressure. Subsequently, the solubility data have been analyzed using the Wilson, NRTL, and UNIQUAC thermodynamic models, respectively. Furthermore, the Gibbs energy of solution and the radial distribution function have been calculated using the molecular simulation method to evaluate the dissolution mechanism. The Gibbs energy of solution reveals that the rank of solute-solvent interaction correlated well with solubility order in binary solvent mixtures, and the radial distribution function indicates that weakening of solvent-solvent interaction led to an increase in solubility.

Effect of Secondary Cold Reduction Rates on Microstructure, Texture and Earing Behavior of Double Reduction Tinplate.

In order to evaluate the effect of secondary cold reduction rate on the drawing performance of double reduction tinplate and explain the mechanism, a detailed investigation into the microstructural characterization, dissolved carbon atoms, texture characterization by an X-ray powder diffractometer (XRD) and electron backscatter diffraction (EBSD), and earing behavior were carried out with different secondary cold reduction rates of 15%, 20% and 25% for double reduction tinplate. The experimental results indicate that 15% secondary cold reduction rate could obtain a better drawing performance because there are no holes and cracks at the microstructure, and the content of dissolved carbon atom is relatively low; at the same time, it has a better texture distribution and low earing coefficient.

Structural and morphological aspects of transformation of aurichalcite precursor into zinc copper mixed metal oxide: An experimental investigation

The present study is being undertaken to investigate the temperature dependent structural and morphological changes in aurichalcite precursor during its transformation into zinc copper mixed oxide. It involves the preparation of aurichalcite precursor using homogeneous precipitation method by urea hydrolysis and calcination of aurichalcite to obtain zinc copper oxide. The consequent structural and morphological changes during transformation have been investigated using characterization techniques such as powder X-ray diffractometer (PXRD), thermogravimetry differential thermal analyses (TG-DTA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). It is believed that implications of this study will be helpful for better understanding of nature of zinc copper oxide during its application in various areas such as catalysis, gas sensing, and anti-microbial studies.

Structural and photoluminescence properties of a novel Ba2GdNbO6: Sm3+ phosphor

A series of novel Ba2GdNbO6: xSm3+ (0.01 ≦ x ≦ 0.12) phosphors were successfully synthesized by a traditional high temperature solid-state reaction. The crystal structure, micromorphology, and element distribution of the phosphors were analyzed by X-ray powder diffractometer and scanning electron microscope. The absorption spectra, excitation and emission spectra, decay curves, thermal stability and CIE chromaticity coordinates of the phosphors were studied in detail. The best doping concentration of the synthesized Ba2GdNbO6: Sm3+ phosphors is 5%, and it emits orange-red light at 605 nm (4G5/2→6H7/2) under the UV excitation of 408 nm. Meanwhile, the thermal stability of Ba2GdNbO6: 0.05Sm3+ phosphor was analyzed. The chromaticity coordinate of Ba2GdNbO6: 0.05Sm3+ phosphor is (0.496, 0.485), and shows a high color purity. The commercial phosphors and orange-red Ba2GdNbO6: 0.05Sm3+ phosphor are evenly coated on the near-ultraviolet chip to emit a bright white light. These results indicated that Ba2GdNbO6: Sm3+ phosphors present a potential application prospect in the field of solid-state white light illumination.

The ameliorative effect of nanoselenium on histopathological and biochemical alterations induced by melamine toxicity on the brain of adult male albino rats

Melamine is a chemical substance used as a food adulterant because of its high nitrogen content; it is known to induce neurotoxicity, thereby adversely affecting the central nervous system. The biocompatibility, bioavailability, lower toxicity, and the large surface area of nanosized selenium relative to its other forms indicate that selenium nanoparticles (SeNPs) have a potential ameliorative effect against melamine-induced neurotoxicity. In this study, we tested this hypothesis using 40 adult male albino rats that were randomly assigned into four groups (n = 10 per group): group I rats served as the untreated negative controls and were fed with standard diet and distilled water; group II rats were orally treated with melamine (300 mg/kg body weight/d); group III rats orally received melamine (300 mg/kg body weight/d) and SeNPs (2 mg/kg body weight/d); and group IV rats received SeNPs only (2 mg/kg body weight/d) for 28 days. Blood and brain samples were collected from all rats and processed for biochemical, histopathological, and immunohistochemical investigations. SeNPs were encapsulated in starch as a natural stabilizer and a size-controlling agent (SeNP@starch). The prepared SeNPs were characterized using different techniques. Inductively coupled plasma-optical emission spectrometry (ICP-OES) indicated that the percentage of selenium loaded in starch was 1.888 %. Powder x-ray diffractometer (XRD) was used to investigate the crystalline structure of the Se-NP@starch, to be tubular and composed of amorphous starch as well as metallic selenium. Thermogravimetric analysis confirmed the thermal stability of the product and determined the interactions among the different components. Transmission electron microscope demonstrated the spherical shape of SeNPs and their dispersion into starch surface as well as evaluating their size in nanoscale (range 20−140 nm). Our results revealed that the melamine- exposed rats had significantly elevated in malondialdehyde levels, significantly reduced in total antioxidant capacity, down-regulated expression of the antioxidant related genes Nrf2 (nuclear factor erythroid 2–related factor 2) and GPx (glutathione peroxidase), as well as up-regulated expression of the apoptosis-related gene Bax (B-cell lymphoma 2–associated X protein), with down regulation of Bcl-2 (B-cell lymphoma 2). Histopathological examination exhibited several alterations in the cerebrum, cerebellum, and hippocampus of the treated rats compared with the controls. Neuronal degeneration, vacuolation of the neuropils, and pericellular and perivascular spaces were observed. In addition, the pyramidal and granular cell layers of the hippocampus and cerebellum, respectively, were found to have significantly reduced thickness. Furthermore, a significant decrease in the percentage area of the glial fibrillary acidic protein and a significant increase in the percentage area of caspase-3 were noted. On the other hand, co-treatment with SeNPs partially ameliorated these alterations. A significant reduction in malondialdehyde levels; a non- significant elevation in total antioxidant capacity; up-regulation, upregulation of Nrf2, GPx, and Bcl-2 and downregulation of Bax were recorded. Neuronal degeneration, vacuolation of neuropils, and pericellular spaces were reduced. The pyramidal and granular cell layers restored their normal thickness. The percentage area of the glial fibrillary acidic protein significantly increased, whereas that of caspase-3 significantly decreased. In conclusion, SeNPs have an ameliorative effect against melamine-induced neurotoxicity in albino rats.

Bisindole [3]arenes—Indolyl Macrocyclic Arenes Having Significant Iodine Capture Capacity

Bisindole [3]arenes—Indolyl Macrocyclic Arenes Having Significant Iodine Capture Capacity

Comparison of grain yield and quality of different types of japonica rice cultivars in the northern Jiangsu plain, China

In recent years, an increasing number of different types of japonica rice cultivars have been released in the southern rice region of China. The grain yield and quality of these new cultivars showed significant differences in large scale planting. However, the causes of the differences remain little known. Therefore, three typical types of japonica rice cultivars were used in this study to investigate their grain yield and quality. A scanning calorimeter (DSC), X-ray powder diffractometer (XRD), rapid viscosity analyzer (RVA) and taste analyzer were used to evaluate the cooking and eating properties. The results showed that the yield of non-soft hybrid japonica rice cultivars was significantly higher than that of non-soft inbred japonica rice cultivars and soft inbred japonica rice cultivars. Soft inbred japonica rice cultivars had a low amylose content and moderate protein content, which are the main reasons for the superior cooking and eating quality. In addition, the relative crystallinity of soft inbred japonica rice cultivars was significantly higher than that of non-soft inbred and non-soft hybrid japonica rice cultivars, which is considered the major factor resulting in higher transition temperature and gelatinization enthalpy (ΔHgel). Non-soft hybrid japonica rice cultivars had a higher number of large starch granules than soft inbred and non-soft inbred japonica rice cultivars. The setback value (SB) and breakdown value (BD), indirectly reflecting the cooking and eating quality of the three types of japonica rice cultivars, also confirmed that soft inbred japonica rice cultivars with a low SB value and a high BD value had better palatability than the other two types. This study provides guidance for future plantation of different types of japonica rice cultivars in large rice-producing areas.

A green and economical approach to derive nanostructured hydroxyapatite from Garra mullya fish scale waste for biocompatible energy storage applications

In this work, we spotlight an economical, green fabrication of bio-supercapacitor material using nanostructured hydroxyapatite (FNHAp). FNHAp employed is derived from the abundant fish scale waste acquired from Garra mullya fish via a facile alkaline heat treatment technique. The structural geometry, functional groups, morphological views and compositional analysis has been done by powder X-ray diffractometer (PXRD), Fourier-transform infrared spectroscopy (FTIR), Transmission electron microscopy (TEM), and Energy-dispersive X-ray spectroscopy (EDX). All the results authenticate the successful synthesis of FNHAp. The capacitive performance has been studied by the electrochemical techniques such as cyclic voltammetry (CV), Electrochemical impedance spectroscopy (EIS), and Galvanostatic charge–discharge method (GCD). The mechanical cyclic stability over 1000 cycles at a current density of 1 mA/g with good coulombic efficiency of 84%. The developed biocompatible material displays great potential to offer a green alternative to conventional supercapacitors.

Methyl-modified silica hybrid fluorinated Paraloid B-72 as hydrophobic coatings for the conservation of ancient bricks

The ancient brick relics have a great historical and cultural significance. However, under the influence of the physicochemical effect, the bricks have suffered severe weathering and erosion in different climates. A methyl-modified silica hybrid fluorinated Paraloid B-72 as a hydrophobic coating was prepared by a simple and mild process to protect the brick from the erosion of polluted rainwater and the damage of ultraviolet aging. Contact angle and hardness were used to verify the content of fluorinated polymer in the Paraloid B-72 sample and then the fluorinated Paraloid B-72 was characterized by infrared spectroscopy (FT-IR). The methyl-modified silica was analyzed by X-ray powder diffractometer (XRD), FT-IR, scanning electron microscope (SEM), and transmission electron microscope (TEM). After treating with different coatings, we found that the highest contact angle was achieved with the addition of 12% methyl-modified silica in 20% fluorine-containing B-72. The synthesized coating was analyzed by FT-IR and ultraviolet–visible spectroscopy. Furthermore, the physical properties such as the pore size distribution, porosity and water vapor permeability of the bricks before and after coating were also examined. The coating enhanced the brick against weathering from acid, alkali, salt and ultraviolet radiation compared to the untreated bricks.

Facile Synthesis of Micro CuO Crystals for Li Ion Full Battery

Micro CuO crystals are synthesized by hydrothermal method in one step. The CuO-Li ion full battery is assembled using the porous lithium foil-graphite as a anode and the prepared CuO crystals as a cathode. The micro CuO crystals are characterized by scanning electron micro porousscopy, X-ray powder diffractometer, Fourier Transform infrared spectrometer, thermogravimeter, Brunauer–Emmett–Teller surface area measurements, and differential scanning calorimeter. The full battery is tested by the galvanostatic current charge-discharge technology at higher current densities of 0.25–0.5 mA/cm2. The porous lithium foil-graphite anode can effectively inhibit the powder of anode lithium, and improve the reversibility of the battery.

Transition metal based ternary hierarchical metal sulphide microspheres as electrocatalyst for splitting of water into hydrogen and oxygen fuel

The production of hydrogen as a clean energy source by a facile method are major concern and promising research area now a days. The electrolysis of water to generate hydrogen and oxygen as a fuel are challenging renewable energy technology. To develop a highly efficient low-cost non-noble metal-based catalyst for hydrogen evolution reaction (HER) is essential and urgent need. Thus, the present work describes a facile synthetic approach to develop suitable cost effective electrocatalyst for water splitting application. It deals one-pot synthesis of low-cost transition metal based ternary metal sulphide (BMS) CuCo2S4, CuMn2S4, CuNi2S4, and CuZn2S4 microspheres as electrocatalyst to generate hydrogen from water. The physical characterization of synthesized electrocatalyst were performed by powder x-ray diffractometer (PXRD) and Raman spectroscopy. The morphological characterization of synthesized electrocatalyst were done by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) however the elemental mapping analysis was done by energy-dispersive X-ray spectroscopy (EDX). The electrochemical measurements were performed in 0.5 M H2SO4 acidic medium on 3-electrode polymer electrolyser membrane water (PEMW) system. The lowest onset and overpotential values have been observed as 61 and 79 mV, respectively in the case of CuCo2S4 micro-sphere. However, the Tafel slope values of CuCo2S4, CuMn2S4, CuNi2S4, and CuZn2S4 electrocatalysts were calculated 121, 115, 102 and 41 mV respectively. On the basis of obtained electrochemical characterization results, CuCo2S4 has been revealed better electrocatalyst under acidic media. This study opens a new direction to consider low-cost transition metal based ternary microspheres as electrocatalyst to produce hydrogen during water electrolysis.

Partial Order–Disorder Transformation of Interpenetrated Porous Coordination Polymers

Controlling interpenetration and flexibility behaviors is intriguing and fundamental for porous coordination polymers. We report exceptional interpenetration behaviors involving controllable partia...

Facile synthesis of polymetallic Li-MOFs and their synergistic mechanism of lithium storage

A simple hydrothermal method was used to synthesize a series of seven polymetallic Li-MOFs (Metal organic frameworks) with the molecular formula Li2(H2O)2M2(H2O)2(BHC) [BHC: benzene-1,2,3,4,5,6-hexacarboxylate; M: Mn, Co, Ni], which are named as MnLi, CoLi, NiLi, MnCoLi, MnNiLi, CoNiLi and MnCoNiLi, respectively. Single crystal X-ray diffractometer (SXRD), powder X-ray diffractometer (PXRD), Scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS) were employed to characterize the structures, phases, morphologies and elemental oxidation states. The seven Li-MOFs have identical structure, all of which belong to monoclinic system, P21/c space group with the similar unit cell parameters. The transition metal ions and lithium ions are coordinated with the carboxyl groups of BHC to form a unique three-dimensional framework. When used as anode materials for lithium ion batteries, MnCoLi exhibited the best electrochemical performance among others with the discharge capacity of 799.4 mAh g−1 after 100 cycles at a current density of 100 mA g−1. The superior electrochemical performance of Li-MOFs shows potential application prospects in the field of electrode materials.