IONICS
·
2025
·
IF 2.6
Yin Ning,Li Qiaoxia,Wang Fuming,Min Yulin,Xu Qunjie
Composite solid electrolytes (CSEs) combine the advantages of solid polymer electrolytes and inorganic solid electrolytes, making them promising candidates for all-solid-state lithium metal batteries. However, current CSEs exhibit deficiencies such as low ionic conductivity, lithium dendrite growth, and susceptibility to damage of the electrolyte membrane, which hinder their practical applications. Therefore, designing composite solid electrolytes with novel structures is crucial for enhancing the overall performance of batteries. In this study, PVDF-HFP was chosen as the polymer electrolyte matrix, while a network structure filled with two-dimensional MOF (UMCM-309a) served as the skeleton. The composite solid electrolyte (CSE) was prepared using a simple solution casting method, incorporating PVDF-HFP, lithium bis (trifluoromethanesulfonyl) imide (LiTFSI), and two-dimensional MOF (UMCM-309a). The developed PVDF-HFP/LiTFSI/MOF (PLM) electrolyte demonstrates remarkable ionic conductivity of 5.7 × 10 −4 S cm −1 at 60 °C, along with an extensive electrochemical stability window of 4.8 V. The Li|10% PLM CSE|LiFePO 4 cell exhibits exceptional cycling performance and longevity, maintaining 95% capacity retention after 1000 cycles of stable operation at 60 °C and a rate of 1 C. Furthermore, the Li | Li symmetric cell illustrates strong interfacial compatibility, achieving stable cycling for 1100 h at a current density of 0.1 mA cm −2 . Therefore, the PLM CSE composite provides a straightforward and effective approach for achieving high-performance lithium batteries, facilitating ultra-stable operation in solid-state lithium metal batteries. Graphical
研究领域:
材料科学
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储能
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电化学
·
纳米材料
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Feixiang Zhou,Linfeng Fu,Qingping Wu,Chao Ding,Le Yu,Weidong Zhou,Fahai Cao,Hui Liu,Jun Xu
Composite solid polymer electrolytes (SPEs) with metal organic frameworks (MOFs) fillers offer a promising route to improve lithium (Li)-ion transport and mechanical stability, but challenges such as poor filler/polymer compatibility and uncontrolled anion mobility. Herein, we present a molecularly engineered approach by covalently grafting a single-ion conductor (LiSTFSI) onto UIO-66-OH via an organosilane coupling agent (KH570), yielding a functional filler denoted as Li@UIO. When integrated into a PEO/LiTFSI matrix, Li@UIO constructs tripartite Li + conduction pathways through polymer segmental motion, intrinsic MOF ion-conducting sites, and MOF/polymer interfacial transport routes, while simultaneously immobilizing TFSI − anions and weakening Li + solvation structure. This synergistic design significantly enhances ion transport dynamics, achieving high ionic conductivity (2.57 × 10 −4 S/cm at 30 °C), enabling stable Li plating/stripping for over 3000 h with a low overpotential of 19 mV. In LiFePO 4 ‖Li@UIO/PL‖Li full cells, it delivers 85.1 % capacity retention after 600 cycles at 1C (60 °C). This study provides a new paradigm for designing multi-channel, single-ion-enhanced SPEs, offering a viable route toward safe, dendrite-free, high-energy-density lithium metal batteries.
研究领域:
材料科学
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电化学
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储能
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高分子化学
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纳米复合材料
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2017
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IF 7.504
Liting Yan,Pengcheng Dai,Ying Wang,Xin Gu,Liangjun Li,Lei Cao,Xuebo Zhao
The development of highly active and stable noble metal-free electrocatalysts of hydrogen evolution reaction (HER) under both acidic and basic conditions for renewable-energy conversion techniques is of great significance. Herein, a practical in situ synthesis strategy for a three-dimensional Ni2P polyhedron with a hierarchically porous structure was presented, which was efficiently obtained from a nickel centered metal–organic frameworks (MOF-74-Ni) by direct low-temperature phosphorization. The as-prepared Ni2P polyhedron showed a high BET surface area (175.0 m2·g–1), hierarchically porous property, and outstanding metal dispersion, which well inherited the morphology and porosity of its MOF precursor. Compared with Ni2P particles obtained from a nonporous precursor, the as-prepared Ni2P polyhedron used as electrocatalyst exhibited excellent electrocatalytic performance toward the HER, with a low overpotential of 158 mV to produce the cathodic current density of 10 mA cm–2. A small Tafel slope of 73 mV per decade is obtained for Ni2P polyhedron, which revealed a Volmer-Heyrovsky mechanism during the HER. In addition, benefiting from the structural stability, the porous Ni2P polyhedron used as a electrocatalyst showed satisfactory long-term durability for the HER in acidic media.
研究领域:
材料科学
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电化学
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DOI
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
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2018
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IF 3.649
Somboon Chaemchuen,Kui Zhou,Mekhman S. Yusubov,Pavel S. Postnikov,Nikom Klomkliang,Francis Verpoort
A first time report on a solid-state polymorphic transformation of MOF materials [Zn 2 (bdc) 2 (dabco)] n (ZnBD) and [Co 2 (bdc) 2 (dabco)] n (CoBD) from a pillared kagomé-lattice form (ZnBD kgm or CoBD kgm ) to a pillared square-lattice form (ZnBD sql or CoBD sql ) at ambient condition is given. Several solvents were applied as a guest-driven molecule to trigger the solid-to-solid transformation while only methanol demonstrated to be able to perform this transformation. The methanol-driven solid-state transformation behavior was observed by using powder X-ray diffraction. The morphology investigated that the rod-like Kagomé form rapidly transformed into a tubular square lattice upon addition of methanol at room temperature. The characteristic porosity reconfirmed the transformation was complete. A transformation mechanism of disconnection-deformation-rebuilding was elucidated based on the experiment.
研究领域:
材料科学
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化学
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DOI
高影响因子
MOLECULES
·
2026
·Vol. 31
·期 4
·590
·
IF 5.1
Keduo Yan,Xiangyu Gong,Lan Xu
Electromagnetic shielding (EMS) materials play an important role in modern technology and industry, especially in electronic equipment, communication technology, military applications and so on. With the continuous progress of technologies and the increasing demands for functional materials, EMS materials are expanding towards flexibility and being lightweight. Recently, metal–organic frameworks (MOFs) have garnered significant attention in the EMS field due to their unique structure and adjustable properties. In this paper, alloy-based porous nanospheres (CCZ-C) were fabricated by heat-treatment using CoCuZn-MOFs as precursors, and then electrospun CCZ-C/PVDF nanofiber membranes (NFMs) were prepared in a large-quantity by blending them with PVDF. Afterwards, a hierarchical porous structured NFM (MPPA) was obtained by loading a highly conductive Ag nanolayer on the surface of CCZ-C/PVDF nanofibers using pDA as a binder. By adjusting the CCZ-C content, it was determined that the EMS performance of MPPA was highest when the CCZ-C content was 2 wt.%, with an average SSE of 12,017.01 dB·cm2·g−1. This was because the hierarchical porous structure formed by adding an appropriate amount of CCZ-C further improved the electromagnetic attenuation and impedance matching of MPPA.
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DOI
PubMed
高影响因子
Advanced Sustainable Systems
·
2022
·Vol. 7
·期 4
·2200443
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IF 6.737
Hongli Yang,Junlun Gao,Man Yang,Huilin Hou,Fengmei Gao,Yong Luo,Weiyou Yang
The development of visible-light-induced photocatalysts is one of the critically important issues because it offers a green and sustainable route for solar energy conversion. Herein, In-doped ZnO@In 2 O 3 hybrid photocatalysts are designed and constructed through a one-pot metal-organic frameworks (MOFs)-encapsulation-derived method. The photocatalytic activity of the sample photocatalysts is systematically investigated by photocatalytic hydrogen evolution under visible light irradiation. The composition of the hybrid photocatalysts is also controlled to find the best photocatalytic activities. Interestingly, using a visible-light irradiation source, the optimized In-doped ZnO@In 2 O 3 photocatalyst shows an H 2 evolution rate of 417 µmol∙g −1 ∙h −1 , which is nearly 20 times higher than that of the In-doped ZnO sample and also exceeds most ZnO-based catalysts ever reported. The enhanced catalytic performance is ascribed to the increased visible-light response and enhanced charge separation efficiency by the synergistic effects of electron-trapped In doping and electron-donated In 2 O 3 coupling. This work presents a promising pathway for fabricating MOFs-encapsulation derived visible-light-driven composites for high photocatalytic performance towards hydrogen evolution.
研究领域:
材料科学
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能源化学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
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IF 9.965
Mohan Huang,Kun Zhao,Zhiying Bai,Dawei He,Jiaqi He,Yongsheng Wang
To design and construct high-performance asymmetric supercapacitors (ASC), we use the same Fe-based metal-organic framework (MIL-88A) as the precursor for the first time to prepare iron-cobalt-nickel ternary metal hydroxides (Fe-Co-Ni-OH) and Fe 2 O 3 compounded with reduced graphene oxide (Fe 2 O 3 /RGO-1). As a positive electrode, Fe-Co-Ni-OH has a specific capacitance of 1065 F g −1 at 1 A g −1 and exhibits excellent rate performance and cycle stability due to its unique spindle-like structure of the surface growth nanosheets and the synergistic effect between the three metals. The introduction of RGO effectively connects the independent spindle-like Fe 2 O 3 and enhances the conductivity and structural stability of the material. So that the Fe 2 O 3 /RGO-1 negative electrode has a specific capacitance of 734 F g −1 at 1 A g −1 , and its cycle stability is significantly improved compared with the single Fe 2 O 3 (increasing from 64 % to 85 %). The constructed Fe-Co-Ni-OH//Fe 2 O 3 /RGO-1 ASC possesses a satisfactory energy density of 43.11 Wh kg −1 at a power density of 800 W kg −1 , which is superior to parts constructed with similar material compositions in the same period. This research provides a new perspective for developing high-performance, low-cost, and environmentally friendly green energy storage devices.
研究领域:
材料科学
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能源存储技术
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DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2019
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IF 6.393
Baoshan He,Xiaoze Dong
In this work, the feasibility of a novel sensitive electrochemistry aptasensor for the detection of patulin (PAT) using hierarchically porous metal organic [email protected] blue connection aptamer as signal tags was demonstrated. The substrate electrode of the aptasensor was prepared by electrodeposited gold nanoparticles (AuNPs) on chitosan-zinc oxide nano flower-modified electrode. Subsequently, the complementary single-stranded DNA was attached to the surface of the modified electrode by Au-S bond. Signal tags self-assemble on the surface of modified electrodes by aptamer-cDNA binding, while methylene blue as mediator for electrochemical detection. Thanks to the large specific surface area provided by zinc oxide nano flower, the electrode can load more signal tags and AuNPs to achieve signal amplification. In presence of PAT, Apt preferentially binds to PAT, causing dissociation of some Apt-cDNA and releasing some signal tags leading, resulting in decreased electrical signals. Under optimal conditions, the change in electrochemical signal was proportional to the logarithm of PAT concentration, from 5 × 10 −8 -5 × 10 -1 μg mL −1 , and the detection limit was estimated to be 1.46 × 10 -8 μg mL -1 . The aptasensor exhibited aceptable reproducibility, renewability, long-term stability and specificity. Moreover, aptasensor was reliable in determination of PAT in spiked apple juice samples.
研究领域:
分析化学
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纳米技术
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电化学
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食品安全
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生物传感器
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DOI
高影响因子
CHEMICAL ENGINEERING RESEARCH & DESIGN
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2019
·
IF 3.073
Kai Yang,Yifan Li,Zejun Zhao,Zhongliang Tian,Yanqing Lai
The amorphous porous layered-Al 2 O 3 derived from aluminium fumarate metal-organic frameworks (AlFu MOFs) by roasting at 773 K under air has been applied to remove fluorine ions from industrial ZnSO 4 solution. The amorphous porous layered-Al 2 O 3 was characterized by XRD, SEM and BET. The adsorption experiments were conducted under different conditions, including adsorbent dosage, initial pH, adsorption temperature and adsorption time. And the process of removing fluorine ions is well fitted with the pseudo-second-order kinetic model and Langmuir isotherm model, which is studied by the adsorption kinetics and isotherms. The theoretical maximum adsorption capacity was 12.05 mg g −1 . Moreover, the adsorption mechanism of the amorphous porous layered-Al 2 O 3 was analyzed by SEM-EDS and FTIR. The results indicate that the adsorption process is affected by complexation and ion exchange between fluorine ions and amorphous porous layered-Al 2 O 3 . The regeneration of the amorphous porous layered-Al 2 O 3 shows that the adsorbent could be reused to reduce the production cost.
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2021
·
IF 5.909
Dan Wang,Ruofei Zhu,Jiangfei Lou,Jiugang Yuan,Jin Xu,Xuerong Fan
Alkylphenol polyethoxylate (APEO n ) is an emerging contaminant mainly referred to nonylphenol polyethoxylate (NPEO n ) and octylphenol polyethoxylate (OPEO n ). A novel multiscale rough composite photocatalyst (CuO@Cu-H 3 BTC) with marigold-flower nanosheets and sub-micron flakes was successfully constructed for photodegradation of OPEO n and NPEO n under visible light. Several technologies (such as SEM , EDS, FTIR, XRD, XPS and EPR) were utilized to characterize the structures and properties of the as-obtained sample. The effect of OPEO n and NPEO n removal by CuO@Cu-H 3 BTC MOF and the influence of reaction conditions on the removal efficiency were explored. It was found that 96% of OPEO n and 79% of NPEO n were removed under the action of adsorption in darkness and degradation in visible light irradiation within 120 min when treating 25 mg/L OPEO n and NPEO n solution with 1.6 g/L of CuO@Cu-H 3 BTC MOF composite. The corresponding OPEO n and NPEO n removal efficiency could still achieve almost 72% and 51% after the CuO@Cu-H 3 BTC MOF was recycled five times, respectively. The degradation mechanism of APEO n investigation revealed that the free radicals and holes generated in the CuO@Cu-H 3 BTC MOF degraded APEO n , and the existence of holes was confirmed to play the major role through quenching experiment. In summary, this facile and novel CuO@Cu-H 3 BTC MOFs composite photocatalyst boosts the application platform in wastewater treatment .
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
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2026
·
IF 3.2
Xinyao Jin,Jun Liu,Jiaqi Lv,Jie Jiang,Zhenye Ma
In this study, copper acetate, zinc acetate, and 1,3,5-benzenetricarboxylic acid (H 3 BTC) were used as raw materials to successfully prepare Cu-BTC, Zn-BTC, and Cu/Zn molar ratio 1:1, 2:1, and 1:2 Cu–Zn bimetallic metal-organic frameworks (MOFs) via a simple and low-energy room-temperature stirring method. MOFs/AP composite particles were subsequently prepared using a mechanical grinding and mixing method. The influence of them as catalysts on the thermal decomposition of ammonium perchlorate (AP) was systematically studied. Characterization methods like FTIR, XRD, SEM, and TEM validated the materials' structure and morphological features and showed that the Cu/Zn ratio modifies the MOFs’ microscopic morphology. DSC and TG analyses demonstrated that Cu–Zn-BTC (Cu:Zn = 2:1) exhibited excellent catalytic performance even at a low additive amount of only 2%. This catalyst markedly decreased the high-temperature decomposition peak of AP to 297.50 °C while simultaneously enhancing the heat release during decomposition to 1070 J/g. Furthermore, the apparent activation energy was substantially reduced from 216.26 kJ/mol observed for pristine AP to 127.45 kJ/mol. A longitudinal comparison showed that AP catalyzed by Cu–Zn-BTC (2:1) possessed the lowest thermal decomposition peak temperature, outperforming both Cu-BTC/AP (311.00 °C) and Zn-BTC/AP (334.80 °C). Furthermore, it exhibited the highest heat release and the lowest activation energy. Therefore, the synergistic effect between Cu and Zn in the bimetallic MOFs enhanced their catalytic performance, which was significantly superior to that of single-metal MOFs. This work provides important enlightenment for the design of AP-based propellant high efficiency catalyst.
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DOI
高影响因子
ELECTROANALYSIS
·
2026
·Vol. 38
·期 3
·e70123
·
IF 2.6
Jiajia Zhang,Sumin Xu,Jianying Qu
In this study, a bimetallic metal-organic framework material (ZnNi MOFs) was synthesized via the solvothermal method, which was then calcined at high temperatures to produce a nickel-doped carbon nanotube material.Scanning Electron Microscope (SEM), X-ray diffractometer, X-ray Photoelectron Spectroscopy (XPS), Fourier Transform Infrared Spectroscopy (FT-IR), and electrochemical techniques were used to characterize the composition, structural characteristics, and performance of the material. Experiments show that the sensor based this proposed material exhibits good electrocatalytic activities to the oxidation of ascorbic acid (AA) and dopamine (DA) and can be employed to simultaneously detect them. Under the optimal conditions, the oxidation currents of AA and DA exhibit a marked linear relationship with their respective concentrations within the domain of 500.00–9500.00 and 0.50–150.00 μM, respectively. The detection limits were 20.18 and 0.04 μM, respectively. And the sensor was effectively used to detect AA and DA in urine sample simultaneously. The sensor possesses excellent stability, reproducibility, resistance to interference, and broader linear ranges with potential applications.
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DOI
高影响因子
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