Journal of Energy Chemistry
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2023
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IF 13.1
Yanan Ma,Shaoru Tang,Haimeng Wang,Yuxuan Liang,Dingyu Zhang,Xiaoyang Xu,Qian Wang,Wei Li
The recharged zinc-air battery (ZAB) has drawn significant attention owing to increasing requirement for energy conversion and storage devices. Fabricating the efficient bifunctional oxygen catalyst using a convenient strategy is vitally important for the rechargeable ZAB. In this study, the bimetallic ZIFs-containing electrospun (ES) carbon nanofibers membrane with hierarchically porous structure was prepared by coaxial electrospinning and carbonization process, which was expected to be a bifunctional electrocatalyst for ZABs. Owing to the formed dual single-atomic sites of Co–N 4 and Zn–N 4 , the obtained ES-Co/Zn-CN ZIF exhibited the preferable performance toward oxygen reduction reaction (ORR) with E 1/2 of 0.857 V and J L of 5.52 mA cm −2 , which were more than Pt/C. Meanwhile, it exhibited a marked oxygen evolution reaction (OER) property with overpotential of 462 mV due to the agglomerated metallic Co nanoparticles. Furthermore, the ZAB based on the ES-Co/Zn-CN ZIF carbon nanofibers membranes delivered peak power density of 215 mW cm −2 , specific capacity of 802.6 mA h g −1 , and exceptional cycling stability, far larger than Pt/C+RuO 2 -based ZABs. A solid-state ZAB based on ES-Co/Zn-CN ZIF showed better flexibility and stability with different bending angles.
研究领域:
材料科学
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能源存储与转换
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DOI
高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 8
·1-10
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IF 5.3
Mo Guangquan,Huang Jiayin,Lin Yueting,Ouyang Yuehan,Hu Bingjie
Novel zeolitic imidazolate frameworks (ZIFs), classical subtypes of metal organic frameworks (MOFs), and nanostructures are electro-engineered onto carbon fiber (CF), leading to a unique freestanding electrochemical platform of budlike nano Zn-ZIFs decorated CF (BN-Zn-ZIFs/CF). The unique morphology, structure, and composition are characterized by electron microscopy and energy spectrum analysis. Notably, the BN-Zn-ZIFs/CF platform displays superb electrocatalysis towards the oxidation of isoeugenol with encouragingly low overpotential and high current response. The strong electrocatalytic oxidation capability of BN-Zn-ZIFs/CF makes it an excellent sensing platform for isoeugenol detection. BN-Zn-ZIFs/CF sensor exhibits high-performance isoeugenol sensing with an extremely low limit of detection (13 nM) and wide detection range (0.1–700 µM). Besides, the BN-Zn-ZIFs/CF sensor can greatly resist interference from common ions, major biomolecules, and some amino acids. Moreover, excellent reliability, stability, and practicality are obtained. Our work demonstrates that the as-prepared BN-Zn-ZIFs/CF can act as an high-performance electrochemical sensor for the isoeugenol detection, the well-developed ZIF nanocrystal-modified conductive substrates can be a unique platform for the efficient sensing of other molecules, and the electrochemical engineering strategy can be an effective method for the growing of fresh MOF nanocrystals at conductive substrates in various electrochemical applications. Graphical abstract
研究领域:
材料科学
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分析化学
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DOI
PubMed
高影响因子
Coatings
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2026
·Vol. 16
·期 1
·89
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IF 2.8
Hao Liu,Haoyue Shi,Qianyu Ma,Liwen Yin,Yuxin Li,Wei Wang,Huijun Yu,Zuoli He
HighlightsWhat are the main findings?A simple and environmentally friendly preparation method for CoZn-ZIFs was proposed.The novel PMS activator Co-CNTs@NC was successfully obtained via pyrolysis of CoZn-ZIFs.What are the implications of the main findings?The Co-CNTs@NC/PMS system achieved efficient degradation of TCH over a wide pH range.The degradation mechanism dominated by1O2for TCH degradation was confirmed.Zeolite imidazolate frameworks (ZIFs)-derived carbon materials have garnered widespread attention as peroxymonosulfate (PMS) activators in removing antibiotics because of their excellent catalytic performance. However, most carbon materials derived from ZIFs exhibit limited efficacy in treating high-concentration (>10 ppm) antibiotic wastewater, and their synthesis methods are environmentally unfriendly. Herein, we develop a simple and environmentally friendly preparation method to synthesize a new type of nitrogen-doped carbon-supported carbon nanotubes coated with cobalt nanoparticle (Co-CNTs@NC) composites via high-temperature calcination of cobalt–zinc bimetallic ZIFs. The material characterization results confirm the successful preparation of Co-CNTs@NC composites featuring a high specific surface area (512.13 m2/g) and a Co content of 5.38 wt%. Across an initial pH range of 3.24–9.00, the Co-CNTs@NC/PMS catalytic system achieved over 84.17% degradation of 20 mg/L tetracycline hydrochloride within 90 min, demonstrating its favorable pH tolerance. The singlet oxygen-dominated degradation mechanism was confirmed by quenching experiments and electron paramagnetic resonance characterization. This work can provide technical guidance and reference significance for the preparation of metal–carbon materials derived from ZIFs with excellent efficiency of removal of high-concentration antibiotics.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2025
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IF 9
Run Li,Tianyang Zhao,Chengbo Jia,Zezhou Zhang,Haoran Sun,Ruinan Wang,Guoqing Feng,Chunfeng Song
Polymer-filler interfacial compatibility is a critical issue in the fabrication of mixed matrix membranes (MMMs) for carbon capture because of the property discrepancies between the polymer phase and the filler phase, especially for carbon-based porous fillers in an organic polymer matrix. In this work, we constructed a type of carbon-based nanofiller with a functional shell. A layer of hybrid silica shell (hSi) was formed on zeolitic imidazolate frameworks-derived carbons (ZIC) via a facile sol-gel and grafting process, endowing it with rational porosity and functional sites. ZIC@hSi nanoparticles were then blended with a PEO-based membrane matrix to prepare ZIC@hSi/XLPEO membranes. The corresponding MMMs containing ZIC@hSi nanoparticles exhibit higher mechanical strength and CO 2 /N 2 selectivity than MMMs containing bare ZIC nanoparticles because covalent linkages between the shell layer and the polymer matrix strengthen their interfacial compatibility. Moreover, the CO 2 permeability of ZIC@hSi/XLPEO membranes is 2.48 times higher than that of neat XLPEO membranes as the functional shell layer maintains gas accessibility to the porosity of the core layer, providing MMMs with fast gas transport channels for CO 2 . Consequently, the ZIC@hSi/XLPEO membrane achieves a CO 2 permeability of 668 Barrer and a CO 2 /N 2 selectivity of 58.7, surpassing the upper bound (2019). This strategy of constructing a functional shell layer on carbon-based microporous fillers has been proven to be an efficient approach to mitigate interfacial defects in MMMs.
研究领域:
材料科学
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化学工程
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环境科学
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DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
·
IF 3.9
Jinyuan Shi,Xiaoyan Huang,Yujie Li,Tianqi Sun,Qian Qiu,Xingmao Jiang,Changwei Shi
Molybdenum carbide (Mo2C) is a promising hydrogen evolution reaction (HER) catalyst, and conventional nanoparticles suffer from poor conductivity, large size, and low active-site utilization. Herein, a novel hollow carbon nanocage embedded with the Mo2C nanocrystal catalyst (Mo2C-HPCS) was developed through an in situ growth and self-sacrificial approach. ZnO nanospheres acted as sacrificial templates, releasing Zn2+ to coordinate with 2-methylimidazole (2-MIM) for ZIF-8 assembly and evaporating during pyrolysis to generate hollow structures. Simultaneously, MoO42– species were uniformly incorporated into the ZIF-8 framework, ensuring a homogeneous Mo distribution. The resulting Mo2C-HPCS possesses a multilevel porous N-doped carbon framework (NC) that enlarges the surface area, exposes more active sites, promotes electron transport, and prevents Mo2C agglomeration. Mo2C-HPCS delivers superior HER activity with a low overpotential of 99 mV at 10 mA cm–2 in 1 M KOH. Density functional theory calculations confirm that Mo2C_NC synergy optimizes the hydrogen adsorption free energy, accelerating HER kinetics.
研究领域:
材料科学
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电催化
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纳米化学
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能源化学
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功能材料
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DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
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2021
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IF 4.311
Lin Sun,Yu Liu,Ming Yan,Weijing Liu,Xiaoying Liu,Weidong Shi
Reasonable structures are beneficial to improve the electronic transfer efficiency of the electrode. A novel two/three-dimensional structure with multiphase CoSe 2 (M-CoSe 2 ) nanoboxes fixed on CoAl-LDH nanoflowers on carbon paper (CP) is reasonably designed. The formation mechanism of M-CoSe 2 is systematically studied through the gradient change of the selenization conditions. Benefitting from the hollow structure of the ZIFs derivatives (carbon-nitrogen frameworks, CNFs), numerous charge transfer channels are provided. Furthermore, M-CoSe 2 with enhanced conductivity can furnish abundant active sites and a synergistic effect. The specific capacity of the optimal anode M-CoSe 2 /CNFs/CoAl-LDO/CP can reach 343.6 mAh g −1 at 1 A g −1 , which is equivalent to twice that of the monomer material. The hybrid-supercapacitor (M-CoSe 2 /CNFs/CoAl-LDO/CP//activated carbon) can provide a high energy density of 50.8 Wh kg −1 at 800 W kg −1 , and high stability (capacity loss rate of 3.2%, 10,000 cycles). Besides, LEDs can be lit by HSCs, demonstrating their application potential.
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
Catalysis Science & Technology
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2020
·Vol. 10
·期 21
·7302-7308
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IF 5.721
Libing Fan,Tian Meng,Qun Li,Dewen Wang,Zhicai Xing,Erkang Wang,Xiurong Yang
Ruthenium (Ru)-based materials have been proven to be highly efficient hydrogen evolution reaction (HER) electrocatalysts and have become the most promising candidates for replacing platinum (Pt)-based electrocatalysts. Herein, we report an easily scalable electrospinning strategy to construct nitrogen-doped carbon nanofibers with porous hierarchical structures and uniformly dispersed Ru nanoparticles (abbreviated as ES-Ru-ZIF-900). Benefiting from the porous fibrous nanoarchitecture caused by the pyrolysis of the zeolitic imidazolate framework-8, the abundant firmly immobilized Ru NPs, and the high conductivity of the N-doped carbon matrix, the resultant ES-Ru-ZIF-900 electrocatalyst exhibits an extraordinary HER performance. ES-Ru-ZIF-900 only needs an overpotential of 21 mV to drive the current density of 10 mA cm−2, and possesses long durability for over 14 h in 1.0 M KOH, superior to Pt/C and most of the non-Pt based electrocatalysts. This work offers a universal and efficient synthetic strategy for preparing metal-based nitrogen-doped carbon hybrid catalysts with enhanced HER activity.
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
Processes
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2024
·Vol. 12
·期 12
·2670
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IF 2.8
Ke-Hong Chen,Ao-Tian Gu,Liang Zhang,Hao Tang,Zhi-Ming Zhang,Yi-Ming Zhou,Yu-Qi Cheng,Yi Yang
Chloramphenicol antibiotics (CAPs) are broad-spectrum antibiotics, and excessive consumption has led to increasingly dangerous residues in the environment. The accumulation of these highly toxic and difficult-to-biodegrade CAPs and their long-term exposure in ecological environments can pose insidious and long-term hazards to human health and aquatic organisms. In this study, co-carbon composite nanocatalysts (CoxZn10−x-NC) with many carbon nanotubes on the surface were prepared via the one-step pyrolysis of bimetallic CoxZn10−x-ZIF with different Co/Zn ratios and used for the degradation of trace amounts of CAPs in a water column. The microstructure and chemical composition of the prepared catalysts were fully characterized using SEM, TEM, and XPS. The CAP degradation experiments demonstrated that Co6Zn4-NC in CoxZn10−x-NC possessed the highest catalytic activity level, removing 100% of the CAPs in 60 min. The CAPs had a corresponding reaction rate constant of 0.22 min−1, and Co6Zn4-NC was able to completely mineralize 44.57% of them. Doping moderate amounts of Zn can effectively improve the carbon nanotube structure on the catalyst surface and promote the generation of monoatomic Co, thus improving catalytic activity. The results of the free-radical burst experiments and electron paramagnetic resonance (EPR) showed that the free-radical pathway mainly dominated within the Co6Zn4-NC+PMS system, in which SO4•−was the main ROS for CAP degradation.
研究领域:
环境科学
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材料科学
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化学
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DOI
高影响因子
Materials
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2025
·Vol. 18
·期 8
·1786
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IF 3.2
Xu Wang,Nan Wang,Kunpeng Liu,Meinan Yang,Ruiyong Zhang,Sikandar Khan,Jinhui Pang,Jizhou Duan,Baorong Hou,Wolfgang Sand
Marine biofouling causes significant economic losses, and conventional antifouling methods are often associated with environmental pollution. Hydrogen peroxide (H2O2), as a clean energy source, has gained increasing attention in recent years. Meanwhile, electrocatalytic 2e−oxygen reduction reaction (ORR) for H2O2production has received growing interest. However, the majority of current studies are conducted on acidic or alkaline electrolytes, and research on 2e−ORR in neutral NaCl solutions remains rare. Here, a bimetallic Zn-Cd zeolitic imidazolate framework (ZnCd-ZIF) is rationally designed to achieve chloride-resistant 2e−ORR catalysis under simulated seawater conditions (pH 7.5, 3.5% Cl−). Experimental results demonstrate that the ZnCd-ZIF catalyst exhibits an exceptional H2O2selectivity of 70% at 0.3 VRHE, surpassing monometallic Zn-ZIF (60%) and Cd-ZIF (50%). Notably, H2O2production reaches 120 mmol g−1in a Cl−-containing neutral electrolyte, exhibiting strong resistance to structural corrosion and Cl−poisoning. This work not only pioneers an effective strategy for designing ORR catalysts adapted to marine environments but also advances the practical implementation of seawater-based electrochemical H2O2synthesis.
研究领域:
材料科学
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电化学
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环境科学
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产品关联
DOI
PubMed
高影响因子
POWDER TECHNOLOGY
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2021
·
IF 5.134
Ting Zhang,Qingqing Ma,Mengqi Zhou,Changyu Li,Jianchao Sun,Weijie Shi,Shiyun Ai
Rationally designing efficient nanomaterials for heterogeneous activation of peroxymonosulfate (PMS) is necessary for environmental remediation. Nitrogen-containing carbon/FeCo 2 O 4 composites (FeCo 2 O 4 -N-C) were prepared by annealing the iron and cobalt in the ZIF-67 (Fe-Co-ZIF) precursor at different reaction temperatures. In the presence of PMS, 400 °C calcined nitrogen-containing carbon/FeCo 2 O 4 composites (FeCo 2 O 4 -N-C-400) was used as catalyst for heterogeneous Fenton degradation of methylene blue (MB) and nearly 100% MB was removed within 10 min without pH adjustment. FeCo 2 O 4 -N-C-400 had excellent catalytic activity profiting from the uniform distribution of bimetals and nitrogen doping, which ensured the exposure of sites with high catalytic activity. Free radical quenching experiments showed that a large number of reactive oxygen species (SO 4 .- and . OH) were the cause of pollutant degradation. At the same time, the possible degradation mechanism of MB in FeCo 2 O 4 -N-C-400/PMS system was proposed. In addition, FeCo 2 O 4 -N-C-400 can still degrade 60% of MB after four cycles, which indicated that the catalyst had long-term catalytic durability and recyclability.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
MICROCHEMICAL JOURNAL
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2022
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IF 5.304
Xiangyu Shan,Juan Lu,Qian Wu,Zhuo Sun,Xin Zhang,Chao Li,Shuning Yang,Huiling Li,Li Tian
Carbon fiber containing zeolite imidazole framework-67 (ENCF-67) combined with graphene oxide (GO) and ruthenium bipyridine [Ru(bpy) 3 2+ ] was first applied in the field of electrochemiluminescence (ECL). ENCF-67, GO@Ru(bpy) 3 2+ and Nafion were successively modified on the electrode surface by layer-by-layer assembly method to fabricate a simple and sensitive solid-state ECL sensor. ENCF-67 prepared by electrostatic spinning combined with high temperature pyrolysis can not only fix Ru(bpy) 3 2+ , but also shorten the electron transport distance and promote the system electron transport due to the large specific surface area and porous structure. GO , which has a large specific surface area, worked with ENCF-67 to immobilize Ru(bpy) 3 2+ and promote electron transfer in the system. The constructed sensor can obtain a significant ECL phenomenon under neutral condition. Chlorpyrifos can obviously quench the ECL signal of the constructed sensor, and the quenching value was associated with the concentration of chlorpyrifos. From 1.0 × 10 –13 M to 1.0 × 10 –6 M, the quenching value was positively correlated with the logarithm value of the concentration, which can be used for the quantitative detection of chlorpyrifos residues. This work not only expanded the application range of carbon fibers, but also provided an effective way for ECL signal amplification.
研究领域:
分析化学
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环境科学
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材料科学
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Yong Xiang,Sihan Ai,Haofeng Zhou,Jialin Chen,Daoyong Yu,Baosheng Ge,Fang Huang
Despite being a mature technology, the large-scale deployment of amine-based solvents for post-combustion carbon capture is limited by their high energy demand for regeneration, slow absorption-desorption kinetics, and susceptibility to degradation, underscoring the need for more efficient and viable solutions. This study developed an innovative hybrid absorption system that synergistically integrated monoethanolamine (MEA) with imidazolium-based ionic liquids (ILs) and zeolitic imidazolate frameworks (ZIFs) to overcome these limitations. Through systematic optimization of MEA-IL binary blends and the subsequent incorporation of ZIFs, the optimal types and concentrations of ILs and ZIFs were identified, along with key process parameters. The resulting selected formulation, 30 wt% MEA blended with 0.15 g/mL [BMIM][Br] and 0.125 g/mL ZIF-67, delivered substantial performance gains compared to 30 wt% MEA benchmark. The maximum absorption rate and capacity increased by 106.4% and 76.3%, respectively, while the desorption rate and capacity were enhanced by 51.1% and 63.4%. 13 C and 1 H NMR spectroscopy provided clear evidence of the chemical transformations during absorption, enabling the proposal and confirmation of a novel synergistic mechanism in which ILs and ZIFs complementarily enhance the capture process. Moreover, the developed composite system retained over 80% of its initial capacity over six consecutive cycles and showed reliable performance in scale-up experiments up to 40× the baseline, confirming its robustness for industrial implementation. This work elucidates the synergistic mechanisms underlying the MEA-IL-ZIF system and demonstrates its potential as a scalable, energy-efficient, and durable solution for industrial CO 2 capture.
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DOI
高影响因子
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