INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Norah Salem Alsaiari,Muhammad Azhar Mumtaz,Khaled Alsaikhan,A.M. Afzal,Hussain Sawwan,Abdelfattah Amari,Sohail Mumtaz,M.A. Diab,Muhammad Hamza Waris
A novel electrode material, BiCo-MOF@NiO/PANI/rGO, was prepared through a low-cost hydrothermal method. The crystallinity and surface morphology were analyzed using XRD and SEM, and the BET study confirmed a specific surface area of 314 m 2 /g. Electrochemical testing showed that BiCo-MOF@NiO/PANI/rGO (B2) delivered a high specific capacity (Qs) of 431.66 mAh g −1 at 1.5 A g −1 , which is significantly greater than that of BiCo-MOF@NiO (100.08 mAh g −1 ) and BiCo-MOF@NiO/PANI (242.95 mAh g −1 ). Under a two-electrode asymmetric configuration, the device attained a Qₛ of 132.37 F/g at 0.7 A/g and maintained 83.3 % capacity after 10,000 cycles. It also offered a high energy density of 81.2 Wh kg −1 and a power density of 2695.7 W kg −1 . In addition to energy storage capabilities, the material exhibited notable electrocatalytic behavior for the HER, with a low Tafel slope (Ts) of 47.62 mV dec −1 . The outcomes highlight the composite's potential as a multifunctional material for both energy storage and electrocatalysis, paving the way for next-generation sustainable technologies.
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INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Hui Cao,Lin Chen,Zixia Huang,Xiner Ding,Yiyuan Liu,Jinsong Yu,Fei Xu
Lanthanide-based metal–organic frameworks (Ln-MOFs) have received wide attention as luminescent sensors due to their outstanding porosity and optical properties. However, the poor selectivity and instability of Ln-MOFs in a water environment limit their application in a complex sample matrix. To address this issue, a luminescent Tb–H4btc-Asp@IIP was developed through amino acid functionalization via a coordinative postsynthetic method (CPSM) combined with surface imprinting strategies. The synthesized Tb–H4btc-Asp@IIP retained 90.2% of its original fluorescence intensity after 30 days in aqueous environments and exhibited high thermal stability up to 286 °C. This improved stability was primarily attributed to a protective ion-imprinted polymer (IIP) layer measuring 90 nm in thickness. Additionally, Tb–H4btc-Asp@IIP exhibited excellent selectivity for Pb(II), benefiting from the dual recognition capabilities of the Asp functional groups and the imprinted cavity for Pb(II). The Tb–H4btc-Asp@IIP sensor effectively detected Pb(II) concentrations ranging from 5 to 300 ng/mL, achieving a low detection limit of 3.19 ng/mL. In vegetable samples, the sensor was able to quickly detect Pb(II) levels, with the average recovery ranging from 82.4 to 109.2% and RSD values of 2.0%–4.8%. The photoinduced electron-transfer (PET) effect and dynamic quenching process contributed to the sensing process of Tb–H4btc-Asp@IIP.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
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IF 6.3
Xian Zhang,Yuhang Yang,Jiage Yu,Ziming Li,Youyong Zhang,Xiangsheng Xie,Zhongping Zhang,Yunfeng Guan,Yuqiang Pi,Feng Wang,Yu Ding
Various strategies have shown promise for addressing the volume expansion issue of silicon (Si)-based anode materials and enhancing their electrochemical performance, such as nanocrystallization and the use of carbon-encapsulated nano-Si particles. However, the agglomeration of nano-Si particles remains a challenge, limiting their full potential. In this study, Zn-MOF-74 was employed to improve the dispersion of nano-Si powder in a carbon source. Subsequently, polyacrylonitrile was used in an electrospinning process to prepare an effective coating, followed by heat treatment to prepare nitrogen-doped Si/C flexible anode composites. The influence of the coating degree on electrochemical performance was investigated, and the Si/C-MOF-74/CNFs-2 composite prepared with 30.3 wt% nano-Si particles exhibited specific discharge capacities of 1030.1 mAh·g −1 after 150 cycles at 0.1 A·g −1 , 610.8 mAh·g −1 after 300 cycles at 1.0 A·g −1 , and 409.1 mAh·g −1 after 300 cycles at 2.0 A·g −1 .
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121502
·
IF 7.2
Xinyi Dong,Ya Chu,Weiqiang Zhang,Baoye Hu,Jinsheng Zhao,Yue Liu,Shiyu Wang,Guangjiu Zhao
In this work, S-scheme Ti-MOF/Cs 2 AgBiBr 6 heterojunction photocatalysts were developed via an in situ self-assembly strategy, achieving satisfactory interfacial contact, matched band alignment, enhanced charge separation, and redox activity. The optimized Ti-MOF/Cs 2 AgBiBr 6 composite exhibited remarkable photocatalytic performance toward benzyl alcohol oxidation under visible light, achieving > 99 % conversion and selectivity without external oxidants and sacrificial agents. It represents a fourfold enhancement over individual components, while maintaining broad substrate applicability and excellent cycling stability. The S-scheme configuration ensures sufficient oxidation potential compared with conventional Type-II systems. This work addresses challenges of limited bandgap tunability and inefficient carrier transport in selective aromatic alcohol oxidation, establishing a promising strategy for designing efficient lead-free perovskite photocatalysts toward sustainable organic transformations.
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Industrial Chemistry & Materials
·
2026
·
IF 11.9
Yang Liu,Zhao-Di Yang,Rui Zhang,Yingchao Lai,Yu Zhang,Guiling Zhang
Electrocatalytic water splitting, consisting of anodic oxygen evolution reaction (OER) and cathodic hydrogen evolution reaction (HER), represents a promising renewable energy technology for producing ultra-high purity hydrogen through efficient energy conversion and storage. However, the practical implementation of this technology in alkaline environments is hindered by the sluggish kinetics of both HER and OER, which significantly limit water splitting efficiency.The development of highly active and stable alkaline HER/OER electrocatalysts is urgently needed yet remains challenging.In this work, we synthesized a novel two-dimensional (2D) highly conjugated COF/MOF composite (COF-C4N/THQ-M) through a post-synthesis method. This method enables controlled growth of part of COF-C4N at the edges of THQ-M MOF to prevent structural disintegration of THQ-M, consequently to enhance surface charge transfer efficiency and further to improve catalytic activity and stability. By regulating metal sites, COF-C4N/THQ-Co and COF-C4N/THQ-Co2Fe1 are proposed to be optimal alkaline HER electrocatalysts with an overpotential of 58 mV at -10 mA cm -2 and alkaline OER electrocatalyst with 314 mV at 10 mA cm -2 , respectively, superior to most of the reported non-precious metals electrocatalysts. The charge transfer characteristics and the pathways of alkaline HER and OER were calculated based on DFT calculations to reveal the synergistic mechanism of COF-C4N and THQ-M. This work provides a novel idea for developing highperformance bifunctional electrocatalysts for alkaline water splitting applications based on hybrid highly conjugated COF/MOF systems.
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高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 5.6
Yanhu Li,Qinhe Pan,Kaixiang Shi,Quanbing Liu,Yanan Guo,Qingji Wang
Metal-organic-framework (MOF)-derived oxide is a promising gas-sensing material candidate because of its high surface area, porosity and structural diversity. Utilizing Aerosol-assisted chemical vapor deposition (AACVD), the fabrication of MOF-derived films performs characteristic morphology and controlled size, which greatly improve the gas-sensing performance. Herein, the heterojunction interface between SnO 2 nanorods and MOF-derived Co 3 O 4 nanoparticles was prepared by two step AACVD. Firstly, SnO 2 nanorods were directly grown on flat electrode. Subsequently, size-controlled MOF-derived Co 3 O 4 nanoparticles were coated on SnO 2 nanorods. The hydrogen sensors were developed based on the above sensing materials with different deposition time ( 0, 30, 40 and 50 min) to demonstrate gas-sensing performance. The Co 3 O 4 /SnO 2 -40 sensor exhibits a response value of 305 % to 100 ppm of H 2 at 310°C, which is 4.4 times of the SnO 2 sensor. Moreover, the Co 3 O 4 /SnO 2 -40 sensor retains a measurable response of 4 % even at an extremely low hydrogen concentration of 200 ppb. The superior sensing performance of this sensor can be attributed to the large surface area and the p-n heterojunction interface. Consequently, the construction of heterojunction via AACVD offers an approach for fabricating high performance hydrogen sensors.
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RSC Advances
·
2016
·Vol. 6
·期 81
·77358-77365
·
IF 3.289
Ting-Ting Li,Jinjie Qian,Yue-Qing Zheng
Metal–organic frameworks (MOFs) have been demonstrated as suitable metal sources and sacrificial templates for the preparation of porous transition-metal oxide nanomaterials. Herein, porous CuO micro-polyhedra assembled from numerous nanoparticles are synthesized simply by employing a Cu-based MOF as a precursor via a one-step calcination process under an air atmosphere. Benefitting from their high porosity and large specific surface area, porous CuO materials exhibit excellent electrocatalytic performances toward water oxidation in pH 9.2 KBi solution. A low catalytic onset potential at 1.05 V vs. NHE (NHE = normal hydrogen electrode) is obtained based on electrochemical measurements. A faradaic efficiency of nearly 98% and a stable catalytic current density of 2.2 mA cm−2 are achieved under an applied potential of 1.30 V vs. NHE over an electrolysis period of 10 h. In addition, based on the Tafel plot, the required overpotentials are only ∼410 mV and ∼510 mV for achieving the catalytic current densities of 0.1 mA cm−2 and 1.0 mA cm−2, respectively. The excellent performances make it an appealing candidate as a potential catalyst for green energy applications.
研究领域:
材料化学
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电化学
·
纳米材料
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能源催化
·
无机功能材料
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高影响因子
ACS Applied Energy Materials
·
2019
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IF 0
Yao Xiao,Wei Wei,Meijiao Zhang,Sa Jiao,Yuchuan Shi,Shujiang Ding
Metal–organic frameworks (MOFs) have emerged as one class of the most promising electrode materials for supercapacitors because of their high surface area and tunable pore structures. The development of MOF heterostructures based on high-quality graphene (HQG) which aims at superior capacitive properties while overcoming poor solution processability and reactivity of HQG is of great concern. In this work, a heterolayered MOF composite was prepared by a facile glucose modification of HQG and controlled nucleation and growth of lamellar Ni-MOF on the HQG surface. The introduction of oxygen-containing functionalities in our approach not only improves the interfacial interactions to form two-dimensional heterostructures but also enhanced the synergistic effects between Ni-MOF and HQG substrates. The constructed GM-LEG@Ni-MOF exhibits excellent capacitance of 987.6 F g–1 at the current density of 0.5 A g–1 and a high capacity retention (85.6%) after 3000 cycles, owing to its favorable electrochemical kinetics and highly structural stability.
研究领域:
材料科学
·
电化学
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纳米技术
·
储能
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CARBOHYDRATE POLYMERS
·
2026
·
IF 12.5
Yuxuan Yang,Sufeng Zhang,Lijing Zhang,Nan Zhang,Liwei Qian,Wenqi Song
To address the low binding-site density and mass-transfer limitations of conventional protein-molecularly imprinted polymers (P-MIPs), this study proposes a synergistic strategy combining a custom-synthesized imidazolium ionic liquid monomer, 1-vinyl-3-diacetamidoimidazolium chloride ([VDAIM]Cl), with a bacterial-cellulose@UiO-66 (BC@UiO-66) hybrid scaffold. Spectral characterization and molecular docking simulations revealed multiple strong interactions between [VDAIM]Cl and bovine serum albumin (BSA), enhancing the stability of the pre-polymer complex compared to conventional monomers. Meanwhile, benefiting from the structural advantages of BC, the template immobilization-surface imprinting strategy (TIS- co -SIT) was employed to construct a high-affinity imprinted membrane. The resulting BC@UiO-66@MIPs exhibited fast adsorption equilibrium within 50 min, a large binding capacity of 502.5 ± 27 ( n = 3) mg g −1 , and a high imprinting factor ( IF ) of 6.27 ± 0.84 (n = 3). Furthermore, BC@UiO-66@MIPs also demonstrated excellent reusability, retaining over 90% of its initial binding capacity after ten adsorption-desorption cycles. Notably, the materials exhibited outstanding selectivity, with a competitive adsorption factor ( α ) of 5.57 ± 0.62 ( n = 3) in binary BSA/BHb mixtures, and a high permeation selectivity coefficient ( β ) of 6.37. The membrane successfully isolated BSA from complex calf serum, confirming its practical potential for protein purification. This study constructs an efficient molecular imprinting system by integrating rational monomer design with advanced porous supports to enhance protein recognition and purification.
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NEW CARBON MATERIALS
·
2026
·Vol. 40
·期 6
·1292-1303
·
IF 6.8
Zong-da TIAN,He-feng YUAN,Zi-zai MA,Yong-feng LI,Xiao-guang WANG
Nickel nanoparticles (Ni NPs) encapsulated in carbon shells have shown promise in the electrochemical reduction of CO 2 to CO. The electronic regulation of the interface between Ni NPs and carbon shells plays a crucial role in reducing the energy barrier of the CO reaction path. We report the formation of a catalyst with hierarchical porosity (Ni NPs@NC) using a high-surface-area 3D Ni-MOF as the precursor. By correlating the pyrolysis temperature with structural changes and catalytic efficiency, structure-activity relationships were established. Because of the confined encapsulation of the Ni NPs by the N-doped carbon layer, the framework does not collapse during pyrolysis but also produces a high-density of exposed Ni-N active sites and better mass transport paths. Notably, the Ni NPs@NC-800 sample had an outstanding electrocatalytic performance for CO 2 reduction, achieving a maximum Faradaic Efficiency (FE) of 93% at −0.8 V vs RHE, and maintaining over 90% efficiency even after 48 h of continuous operation. Raman spectroscopy showed that the interface between the Ni NPs and the carbon shell play a critical role in stabilizing the critical COOH intermediate, promoting CO desorption and inhibiting the competing hydrogen evolution reaction. This work may provide insight for producing catalysts for efficient electrochemical CO 2 reduction over a wide potential range. Download: Download high-res image (53KB) Download: Download full-size image
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CARBOHYDRATE POLYMERS
·
2026
·
IF 12.5
Yuting Zhang,Xinmiao Qi,Binzhen Liu,Liangkun Li,Xin Guo
Orange peel is an abundant polysaccharide-rich agro-industrial residue that is often discarded, causing resource loss and environmental burden. Here, we valorize orange peel-derived pectin into a mechanically robust and photostable fluorescent hydrogel (EuCPH) by embedding uniformly dispersed Europium-based metal-organic framework decorated cellulose nanofibril (Eu-MOF@CNF). The resulting red-emissive EuCPH enables simultaneous levofloxacin (LEV) capture and fluorescence sensing. EuCPH-4 exhibits an ultrahigh Langmuir capacity of 1388.6 mg g −1 and a low limit of detection (LOD) of 0.12 μg L −1 . Adsorption follows the Langmuir isotherm and pseudo-second-order kinetics, consistent with chemisorption-dominated uptake. EuCPH-4 retains 83.8% of its capacity after five cycles with negligible Eu leaching (<8 ppb) and sustains stable performance over ten fixed-bed regeneration cycles. With low-cost orange peel-derived pectin and wood-derived CNF, EuCPH can be produced at ~0.02 CNY g −1 , providing a scalable and economically viable hydrogel platform for antibiotic monitoring and remediation.
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 4
·239
·
IF 5.4
Li Guangyan,Cheng Xiu,Zhu Minnan,Tian Yayang,Chen Linfeng
To address the need for rapid detection of profenofos (PFF) residues, we developed a self-cascaded colorimetric sensor using the bifunctional nanozyme Ce-UiO-66@His, prepared by doping histidine (His) into Ce-UiO-66. The introduction of His optimized the valence state distribution of cerium and increased the concentration of oxygen vacancies, thereby endowing Ce-UiO-66@His with enhanced phosphatase-like and laccase-like activities. Crucially, these two enzymes can efficiently catalyze in sequence under the same catalytic conditions, thereby achieving an integrated self-cascaded catalytic reaction of PFF. Specifically, the phosphatase-like activity hydrolyzes PFF to generate 4-bromo-2-chlorophenol, which is then oxidized by the laccase-like activity and coupled with 4-aminoantipyrine to form a red quinone-imine dye with strong absorbance. This self-cascaded, dual-recognition system provides exceptional selectivity and high sensitivity for PFF, with a detection limit of 0.71 µg/mL. Furthermore, by integrating smartphones and RGB recognition, a portable photo-colorimetric method was developed that realizes rapid and visual quantification of PFF. This work not only presents a new strategy for rapid monitoring of PFF residues but also offers insights into designing efficient biomimetic self-cascaded sensing systems. Graphical abstract
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危险品化学品经营许可证（带存储）