INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
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IF 9.2
Zhenzhen Hui,Yiyao Song,Chensong Zhang,Xuzhong Zuo,Yanping Wang,Xiangju Ye,Jing Tang,Xiang Ke,Xuchun Wang,Lin Guo,You Yin,Zirong Li,Jie Yang
The metal-organic frameworks (MOFs) class of electrocatalysts is characterized by adjustable pore structure, design diversity, and homogeneous distribution of active metal sites. Due to the low conductivity of MOF class materials and high diffusion resistance in bulk crystalline MOFs, the transition metal nitride materials have the merits of outstanding conductivity, strong chemical stability, and high electrocatalytic activity, which can be used as a suitable to-site support material to grow the MOFs materials. Therefore, in this thesis, a MOF material for electrocatalysis was grown on transition metal nitride-like materials by optimizing the composition and constructing a reasonable structure. This research introduces an innovative design methodology for the fabrication of non-precious metal-based catalysts. These catalysts are characterized by their cost-effectiveness, high catalytic activity, and robust stability, thereby offering a promising alternative to traditional precious metal catalysts. The overpotential of the optimized NiFe-MOF@NiNCo 3 /NF sample is as low as 260 mV under a current density of 100 mA cm −2 . The NiFe-MOF@NiNCo 3 /NF||NiNCo 3 /NF alkaline electrolytic cell stands out for its low operating voltage of 1.66 V and high durability, maintaining stable performance even at a current density of 100 mA cm −2 over multiple cycles.
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CHEMICAL ENGINEERING SCIENCE
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2026
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IF 5.1
Xiaolei Zhang,Nan Gao,Zhen Li,Zong Tan,Shuqin Liang,Zhongmin Liu,Dongjun Lv,Fan Yang,Dongmei Xu,Peng Du,Jinyang Li,Jiahao Wang
Polyethylene (PE) microplastics are chemically inert, environmentally persistent, and difficult to remove or oxidize using conventional separation-based treatment processes. Here, we report an in situ capture–electro-Fenton degradation strategy that integrates microplastic enrichment and oxidative conversion within a dual-function ferrocene-based MOF electrode (ER-Fc-MOF@NiF). The electrode provides abundant interfacial binding sites that locally accumulate PE on the catalytic surface, enhancing the contact efficiency between reactive oxygen species and polymer chains during electro-Fenton operation. The electrode exhibits a high adsorption capacity of 150.8 mg·g −1 toward PE microplastics and enables progressive oxidative fragmentation of the polymer within 36 h under electro-Fenton conditions. Structural and spectroscopic analyses (SEM, XPS, TOC, and EDS) reveal the formation of oxygen-containing functionalities and surface erosion of the polymer. Electron paramagnetic resonance (EPR) measurements confirm the generation of •OH and 1 O 2 , indicating a cooperative radical/non-radical oxidation pathway. By integrating capture and oxidation within a single electrode, the system forms an interfacial capture–conversion microzone where microplastics are retained and subsequently undergo interfacial oxidative transformation and fragmentation. The ER-Fc-MOF@NiF electrode maintains stable adsorption performance across a wide pH range, tolerates common inorganic ions, and remains effective in real water matrices. This work provides a compact capture-to-degradation platform with practical potential for microplastic remediation and offers a transferable strategy for the treatment of other polymeric micropollutants.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Li Wang,Liwei Wang,Yuhang Que,Ling Xin,Fugang Xu
Donut-like Cu-Zn-MOF@CuNPs were synthesized via facile two-step approaches. • Cl − amplifies Cu signal via formation of highly electroactive CuCl. • Ag + inhibits the signal by competitive binding with Cl − to form AgCl. • The sensor detects Ag + with a low LOD of 1.4 nM and wide linear range. • It shows good selectivity, stability, and real water sample recovery. Silver ions (Ag + ) are highly toxic heavy metal pollutants. Conventional electrochemical methods for Ag + detection typically involve complex ionophore preparation, long preconcentration/stripping steps, or costly biorecognition agent. Here, we report a Cu-Zn-MOF supported CuNPs composite (Cu-Zn-MOF/CuNPs) for Ag + detection. The composite is prepared via a two-step room temperature mixing process. The nest-like Cu-Zn-MOF, composed of stacked two-dimensional nanosheets, provides a high specific surface area and accessible active sites for CuNPs deposition, which improves conductivity and generates a detectable redox signal. The presence of Cl − enhances the Cu redox signal due to the formation of electroactive CuCl. In the presence of Ag + , this signal enhancement is suppressed due to the competitive binding that forms AgCl precipitates. Leveraging this “amplification-inhibition” response, the Cu-Zn-MOF/CuNPs modified electrode allows for Ag + detection with two linear ranges (5 nM–100 nM and 100 nM–1100 nM), a detection limit of 1.4 nM, and recoveries ranging from 96.5% to 104.5% in spiked real water samples. The preparation procedure and detection protocol are relatively straightforward, and the sensing mechanism offers an alternative pathway for heavy metal ion detection. A donut-like Cu-Zn-MOF/CuNPs composite enables sensitive and selective electrochemical detection of Ag + via a novel amplification-inhibition mechanism: Cl − enhances the Cu redox signal through CuCl formation, while Ag + competitively binds Cl − to suppress the signal. The sensor achieves a low detection limit of 1.4 nM and good performance in real water samples. Download: Download high-res image (121KB) Download: Download full-size image
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2026
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IF 4.1
Xiang Meng,Wang Qingyue,Li Chengjie,Wu Buyong,Qin Mengyu,Zhu Yancheng,Qian Zhiyi,Yang Zhou,Dong Shuang
In this work, we develop a new type of Zn-based electrode material, i.e., mulberry-shaped nanostructured zinc metal–organic frame/zinc sulfide (Zn-MOF/ZnS) heterojunction, which was synthesized via a green and convenient one-pot solvothermal method with common zinc salts as the metal precursor, 1,3,5-benzenetricarboxylic acid (H 3 BTC) as the organic ligand, and thioacetamide (TAA) as sulfur source. The porous structure of zinc metal–organic frame (Zn-MOF) can effectively adsorb and enrich naphthol molecules, accelerating material transport. Meanwhile, the integration of Zn-MOF with zinc sulfide (ZnS) to form the heterojunction interface can promote rapid electron transfer and improve the efficiency of electrocatalytic reactions. When used for electrochemical detection of naphthol isomers in water, the sensing performance of the resultant Zn-MOF/ZnS electrode is significantly improved in comparison with monolithic Zn-MOF and ZnS electrodes. The sensor achieves a detection linear range of 0.4–70 µM, with low detection limits of 30 nM for 1-naphthol (1-NAP) and 10 nM for 2-naphthol (2-NAP), respectively. In addition, the sensor has acceptable anti-interference ability, repeatability, and long-term stability, which can be used for the actual sensing of naphthol isomers in environmental water. This study provides new ideas and references for the development of high-performance electrode material for on-site monitoring of pollutants in water quality. Graphical
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Sustainable Materials and Technologies
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2026
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IF 9.7
Yu He,Weiliang Xiong,Xiang Li,Rongjie Zeng,Guosheng Shao,Peng Zhang,Yige Zhao
Metal-organic frameworks (MOFs) are generally considered as attractive precursors to fabricate metal compound/carbon hybrid in the electrocatalysis field. However, applying multi-metallic MOFs as direct electrocatalysts have received limited attention. In this study, a two-dimensional medium-entropy quaternary MOF (NiCoFeMo-MOF) and comparative ternary MOF (NiCoFe-MOF, NiCoMo-MOF, and NiFeMo-MOF) materials are successfully fabricated via a one-step room-temperature ultrasonication method. These MOFs all exhibit a sheet-like morphology with homogeneous elemental distribution. Electrochemical results demonstrate that quaternary NiCoFeMo-MOF shows more superior oxygen evolution reaction (OER) performance compared to the other ternary MOFs and commercial RuO 2 catalysts. The performance enhancement primarily stems from the electronic synergy within the multi-metal system, in which Ni site forms a local electronic environment that is favorable for stabilizing the *OOH intermediate, thereby effectively reducing the reaction barrier for OER. Furthermore, NiCoFeMo-MOF also displays excellent hydrogen evolution reaction (HER) activity at high current densities, and the overall water-splitting electrolyzer assembled with NiCoFeMo-MOF outperforms the corresponding commercial Pt/C||RuO 2 system. This work provides a feasible route for the facile preparation of medium entropy MOF materials and opens a new pathway for developing advanced non-noble-metal electrocatalytic materials.
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BIORESOURCE TECHNOLOGY
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2026
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IF 8.2
Jiaze Yan,Xiaosong Zhang,Yue Huang,Chunping Li,Jiajia An,Daquan Zhang
Lignin-derived Ca-MOF carbon nanofibers enabled efficient fluoride CDI. • CMDNF achieved a fluoride electrosorption capacity of 26.81 mg·g −1 . • Fluoride concentration decreased from 10 to 1.15 mg·L −1 . • The electrode retained 91.27% capacitance after 5000 cycles. • CMDNF retained 75.38% adsorption capacity after 15 regeneration cycles. Valorization of renewable lignin into high-performance electrochemical materials offers a sustainable route for advanced water treatment, yet achieving efficient fluoride removal together with long-term electrode stability remains challenging. Herein, we report a hierarchical Ca-MOF/lignin-derived carbon nanofiber (CMDNF) electrode fabricated via in situ solvothermal growth of a Ca-based metal–organic framework on electrospun lignin nanofibers, followed by controlled carbonization. This strategy converts biomass-derived nanofibers into a conductive and hierarchically porous carbon framework integrated with Ca-containing surface environments favorable for fluoride electrosorption. Structural characterization reveals that Ca species are uniformly distributed throughout the carbon architecture, while the lignin-derived framework provides structural robustness, efficient electron transport, and improved ion-accessible pathways. The optimized CMDNF electrode exhibits a specific capacitance of 163F·g −1 at 2 mV·s −1 and retains 91.27% of its initial capacitance after 5000 charge–discharge cycles, demonstrating good electrochemical stability. In fluoride electrosorption experiments, it delivers a maximum adsorption capacity of 26.81 mg·g −1 and reduces the fluoride concentration from 10 mg·L −1 to 1.15 mg·L −1 under model-solution conditions, below the WHO guideline value of 1.5 mg·L −1 . XPS and EPR analyses suggest that the enhanced fluoride removal arises from the combined contribution of Ca-containing oxygen-coordinated surface environments, defect-rich carbon surfaces, and electric double-layer electrosorption. This work demonstrates a feasible strategy for converting lignin into high-performance CDI electrodes and provides useful insight into the rational design of biomass-derived hierarchical materials for fluoride removal at electrode–electrolyte interfaces. Download: Download high-res image (166KB) Download: Download full-size image
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Nature Communications
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2026
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IF 18.1
Lv Guoliang,Zhang Linjuan,Luo Yuanyuan,Zhu Jianqiu,Wu Jilong,Qin Li,Zhang Yanlin,Zhang Zheng,Tan Pengwei,Duan Guotao
Simultaneously achieving chemiresistive gas sensors with high selectivity, sensitivity, and stability remains a significant challenge. In this study, inspired by the H 2 S-specific catalytic enzymes in biological systems, we construct an amorphous unsaturated-ligand MIL-68(Fe) 3D MOF via in situ thermal induction. Without the introduction of extrinsic catalytic or conductive components, this MOF modification strategy creates unsaturated Fe atoms within the framework itself. These atoms function dually as catalytic and conductive sites, thereby overcoming the inherent low conductivity of conventional 3D MOFs and enabling the direct construction of chemiresistive sensor for room-temperature molecular olfactory sensing. The targeted water-adsorption-coordinated catalytic mechanism bypasses the limitations of traditional oxygen adsorption processes to achieve unprecedented comprehensive performance, including fingerprint-level selectivity (against 29 interfering gases), superior sensitivity coefficient (~83/ppm), ultra-low measured lower limit (1 ppb), rapid gas sensing response/recovery characteristics (~30 s/73 s), and excellent long-term stability at room temperature.
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MOLECULES
·
2026
·Vol. 31
·期 16
·2759
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IF 5.1
Panpan Liu,Peijun He,Yixin Wu,Xiufang Li,Xianmang Xu,Jianing Duan,Peng Bai
In this study, we prepared a magnetic University of Oslo-66 (UiO-66) composite material, Fe 3 O 4 @SiO 2 @UiO-66, and applied it as an adsorbent for the effective removal of benzoic acid from wastewater. The resulting magnetic MOF composite retained the structural and property characteristics of MOFs, along with magnetic separation capabilities, allowing for swift recovery from water through external magnetic fields. A potential synergistic effect between magnetic particles and UiO-66 was observed, leading to enhanced benzoic acid adsorption. The adsorption capacity per Zr 6 cluster unit in Fe 3 O 4 @SiO 2 @UiO-66 measured 569.5 g/mol, surpassing that of UiO-66 by more than 26%. We conducted investigations into adsorption properties as a function of initial concentration, contact time, and pH values. The adsorption of magnetic UiO-66 composites was well described by pseudo-second-order and Langmuir models, indicating predominant chemisorption on the homogeneous surface. Thermodynamic studies of adsorption revealed a spontaneous exothermic process. Furthermore, we analyzed possible mechanisms of benzoic acid adsorption, highlighting the contributions of electrostatic interactions, coordination interactions, and π–π stacking interactions. Magnetic UiO-66 exhibited remarkable adsorption capacity, along with reliable regeneration performance and convenient magnetic separation capabilities, making it an exceptional adsorbent for industrial applications in the removal of benzoic acid.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Tao Liu,Yan Zeng,Tao Ma,Feng Liang
Antibiotic contamination in aquatic environments poses increasing environmental and health risks, calling for efficient and sustainable remediation strategies. In this work, a metal organic framework (MOF)-mediated approach is developed to construct iron-doped carbon nitride (CN) nanotubes (Fe-CN-X, X = 0, 65, 135, 200, 270) using MIL-88A(Fe) as both an iron source and a structure-directing precursor. By regulating the amount of MIL-88A(Fe), the Fe content and structural properties of the Fe-CN-X can be precisely tuned, leading to the formation of surface-porous nanotubular structures with well-dispersed active sites. Among the prepared samples, Fe-CN-135 exhibits an optimal combination of visible-light absorption, charge separation efficiency, and surface characteristics. Under visible-light irradiation in a H 2 O 2 -assisted photocatalytic system, Fe-CN-135 achieves 99.3% degradation of tetracycline (TC) within 40 min, with a pseudo-first-order rate constant of 0.1106 min −1 . Mechanistic investigations reveal that Fe incorporation narrows the bandgap, suppresses electron-hole recombination, and promotes Fe 3+ /Fe 2+ redox cycling, leading to a • OH-dominated oxidation pathway. The catalyst also demonstrates excellent stability and effectiveness toward multiple organic pollutants. This work provides a practical and scalable strategy for designing Fe-doped CN photocatalysts through MOF-mediation and offers a unique insight for the efficient degradation of organic pollutants.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2026
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IF 3.9
Haodong Sun,Hengyi Wang,Bing Li,Cheng Lian,Haiping Su,Jingkun Li,Honglai Liu
Solid polymer electrolytes (SPEs) are promising solutions to address insufficient energy density along with the safety risks brought by liquid electrolytes in commercial lithium-ion batteries. Nevertheless, SPEs are still limited by low room-temperature ionic conductivity and weak mechanical properties, which greatly restrict their practical application. In this work, a poly(ethylene oxide) (PEO)-based SPE composed of rigid substrates was proposed, which showcased a high Young’s modulus of 3.38 MPa. Meanwhile, with the inorganic MOF filler and organic succinonitrile (SN) plasticizer, the Z@MEL/PEO-SN SPE demonstrated a high ionic conductivity of 5.5 × 10–5 S·cm–1 and lithium transference number of 0.46 at 25 °C. The Li|Z@MEL/PEO-SN|Li symmetric cell could cycle stably for over 2000 h at a current density of 0.025 mA·cm–2 at ambient temperature. The Li|Z@MEL/PEO-SN|LiFePO4 full cell maintained a capacity retention of 94.2% after 100 cycles at room temperature at 0.2 C. These results suggest that this SPE is a promising candidate for the next generation of solid-state lithium-ion batteries with a high energy density and improved safety.
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ACS Sensors
·
2026
·
IF 10.9
Yueru Jiang,Yu Wang,Tianshuang Wang,Liupeng Zhao,Dan Li,Xueying Kou,Peng Sun,Geyu Lu
Recent advances in flexible metal-organic framework (MOF) films have injected momentum into the development of wearable gas sensors. However, current MOF-based wearable sensors suffer from mutual interference and often compromise in power consumption and wearing comfort, limiting their suitability for skin-interfaced applications. Here, we report a wireless, battery-free, wearable gas sensor patch based on a flexible inductance-capacitance (LC) resonator. This sensor features a bilayer flexible film composed of a 2D bimetallic Cu/Co-HHTP conjugate MOF (c-MOF) sensing layer and a Pd/SSZ-13 zeolite overlayer. Specifically, the zeolite overlayer functions as an NO2-adsorbing interface that captures incoming NO2 molecules, thereby preventing them from reacting with the underlying 2D c-MOF sensing layer. Accordingly, the wireless sensor achieves linear and interference-resistant detection of low concentrated NH3 even in the presence of NO2, while maintaining excellent mechanical flexibility, cyclic stability, and negligible baseline drift, exhibiting less than 6.2% response attenuation after repeated bending at 120°. The performance of the device is further validated through a skin-adherent, wireless, passive sensing system capable of continuous NH3 monitoring in complex environments. The proposed wireless wearable MOF-based sensor patch is highly transformative, offering benefits for various wearable applications. Device performance under high-humidity conditions is still constrained, indicating that further optimization is necessary.
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Advanced Science
·
2026
·
IF 14.1
Xin Li,Miao Xu,Heran Li,Huan Jiang,Xin Wang,Lianjun Ma,Ying-Wei Yang
Oral treatment of inflammatory bowel disease (IBD) faces significant challenges of poor targeting, low bioavailability, and systemic toxicity, necessitating intelligent stimuli-responsive delivery systems. Here, we design and synthesize a pH/hypoxia dual-responsive pendant azobenzene-functionalized MOF (Azo-MOF). The uniformly distributed azobenzene pendants serve as intrinsic gating sites, forming “snap-top” encapsulation with β-cyclodextrin through host-guest interactions that prevent premature 6-mercaptopurine leakage while enabling rapid stimuli-triggered release, creating a postmodification-free supramolecular gated delivery nanosystem (CAMM). CAMM exhibits hypoxia-triggered burst release and alkaline-sustained release, with <5.0% drug leakage during gastrointestinal transit and >90.0% cumulative release at inflammatory sites. Notably, the Azo-MOF carrier scavenges reactive oxygen species through synergy between its conjugated π -system and metal coordination environment, providing antioxidant protection alongside drug delivery. In dextran sulfate sodium-induced colitis models, CAMM outperformed free drug, achieving near-complete weight recovery, downregulating proinflammatory cytokines, restoring intestinal barrier integrity, and rebalancing gut microbiota by enriching Lactobacillus and Bifidobacterium while suppressing opportunistic pathogens. This study integrates targeted delivery, antioxidant therapy, and microbiota modulation, offering an effective strategy for precision IBD treatment.
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