CHEMICAL ENGINEERING JOURNAL
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2020
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IF 10.652
Fang Wang,Ting Feng,Xiujuan Jin,Yulin Zhou,Yanjie Xu,Yahui Gao,Haisheng Li,Jianfei Lei
Herein, a robust MOFs-derived super-carbon embedding with single atom Co/Ni anode materials for LIBs is developed by one-step annealing of the core–shell precursor ZIF-8@ZIF-67 with the introduction of dimethylglyoxime nickel as Ni source. The characterization results clearly indicate that atomic Co/Ni active sites accompanied with suitable CoNi nanoparticles are evenly embedded in the MOF-derived hollow rich-nitrogen carbon matrix. Simultaneously, moderate short carbon nanotubes root in polyhedral surface under the catalytic effect from the CoNi nanoparticles and construct an advanced conductive network. As a result, it delivers a high reversible lithium-ion storage capacity of 462.1 mAh g −1 at a current density of 0.5 A g −1 over 500 cycles, excellent rate performance of 223.28 mAh g −1 even at a high current density of 2 A g −1 , which is much higher than most of reported carbon-based electrode materials. The enhanced lithium storage performance mainly derives from the moderate affinity of the Li by the atomic Co/Ni active sites incorporated with their powerful catalytic effect assisting MOF-derived rich-N doped carbon base. Moreover, the superior nano-structure of the hollow rich-nitrogen carbon skeleton with in-situ grown short carbon nanotubes improves the conductivity of electrode materials, relieves the volume expansion and accelerates the migration rate of lithium ions and electrons. The theoretical calculation further confirms the superior affinity of the Li on atomic Co/Ni active sties.
研究领域:
材料科学
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能源存储
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产品关联
DOI
高影响因子
Journal of Materials Chemistry A
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2022
·Vol. 10
·期 42
·22453-22467
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IF 14.511
Huihua Luo,Lianqing Yu,Kehui Xue,Haifeng Zhu,Yaping Zhang
Photocatalytic water splitting into value-added energy is a promising strategy to resolve the environmental pollution and energy crisis. Herein, we proposed a facile method to design a p–n heterostructure photocatalyst for highly effective and stable visible light-driven hydrogen production. Starting from a framework of metal–organic framework (MOF) derived carbonaceous material (CNCo-Fe3O4) with a spindle-like structure, we demonstrated ultrathin ZnIn2S4 (ZIS) nanosheets grown on the surface of the rich porous CNCo-Fe3O4 spindle-like structure (denoted as CNCo-Fe3O4/ZIS). The intimate coupling between CNCo-Fe3O4 and ZnIn2S4 facilitates charge transfer and inhibits the recombination of electron and hole pairs, resulting in fast reaction kinetics at the heterointerface. Furthermore, the conductivity and structural integrity of the catalysts are further enhanced by MOF-derived carbonaceous materials. Both high H2 yield (2.63 mmol g−1 h−1) and long-term stability are achieved for 5% CNCo-Fe3O4/ZIS heterostructure catalysts under visible-light irradiation (λ ≥ 420 nm), ascribed to the enhanced light absorption capacity, conductivity and charge separation ability. The designed nanoarchitecture may inspire more possibilities for the synthesis of MOF-derived carbonaceous material compositions with semiconductors for wide applications.
研究领域:
材料科学
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能源化学
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环境科学
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2023
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IF 8.6
Tengru Xie,Luwei Wang,Hexiang Wang,Chuan Cao,Chenliu Tang,Xiang Hu
Antibiotics cannot be completely removed through traditional treatment technologies, leading to their accumulation in the aquatic environment and posing a serious threat to human health. MOF-derived carbon is a promising material for the degradation of antibiotics. Herein, in this study, a novel Co/Ce-MOF electrode was rapidly prepared by one-step electrodeposition at room temperature. Then the Co/Ce-MOF electrode was carbonized to obtain MOF-derived carbon composite electrode (Co/Ce-C350Air). The ceftazidime (CAZ) degradation efficiency achieved 96.59% within 60 min under the optimum conditions ([CAZ] = 5 mg/L, [Na 2 SO 4 ] = 50 mM, current density = 0.8 mA/cm 2 , electrode gap = 2 cm and initial pH = 5.6) and the degradation process of CAZ conformed to first-order reaction kinetics. Furthermore, the removal efficiency of CAZ maintained at 94.92% even recycling for 6 times, demonstrating the good electrochemical stability of the Co/Ce-C350Air composite anode. The synergistic effect between Co and Ce metals improved the catalytic performance and stability of the Co/Ce-C350Air electrode. Radical quenching experiments and electron paramagnetic resonance (EPR) spectra results revealed that surface hydroxyl radicals were the main active species in the degradation of CAZ. The main intermediate products were identified by high-performance liquid chromatography-mass spectrometry (HPLC-MS) and the possible degradation pathway was proposed. In addition, toxicity tests with Ecological Structure Activity Relationships (ECOSAR) software results indicated that the toxicity of the intermediate products was lower than that of CAZ. This work provided a safe and effective strategy for the degradation of antibiotics in the electrochemical oxidation system.
研究领域:
环境科学
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材料科学
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电化学工程
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产品关联
DOI
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
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2025
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IF 3.7
Hao Zhang,Hongfei Xu,DongJian Kang,Zhenxia Wang,Zizai Ma,Xiaoguang Wang
Graphical Supercapacitor Electrode: Litchi-skin-like morphology NiMoP 2 microspheres loaded on MOF-derived carbon layers for enhancing the electrochemical performance of ASCs. Developing ideal positive electrodes with excellent performance and structural stability for supercapacitors is crucial in enhancing the application potential. Herein, we successfully fabricate a composite structure of NiMoP 2 @C on nickel foam (NF) (NMP@C/NF), which is formed by loading a litchi-skin-like morphology NiMoP 2 microspheres onto MOF-derived carbon layer with the two-step electrodeposition method. The carbon layer acts as a structurally stable framework, and its synergistic effect with active materials suppresses volume expansion while enhancing electron transport efficiency. Meanwhile, the heterogeneous interface between crystalline/amorphous phases optimizes redox reaction kinetics, and the unique morphology composed of multi-scale components increases the accessible surface area for redox reactions. As a result, the NMP@C/NF obtains a high specific capacitance of 2224.8 F g −1 at 1 A g −1 , and the capacitance retention rate is 94.97% after 8000 cycles. The asymmetric supercapacitor (ASC) assembled with NMP@C/NF positive electrode and active carbon negative electrode generates an energy density of 52.52 Wh kg −1 at a power density of 784.55 W kg −1 , and its capacitance retention rate reaches up to 78% after 8000 cycles. This study provides promising pathway for the rational design of high-performance and environmentally friendly positive electrodes for supercapacitors.
研究领域:
材料科学
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能源存储与转换
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产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Yushan Cao,Chuan Cao,Zhirong Sun,Xiang Hu
Calcination temperature affects the formation of metal species. By calcining nitrogen-doped Fe/Mo bimetallic MOF at a higher temperature (700 °C), a core-shell structure MOF-derived carbon material (FeMo@NPC-700) containing transition metal nitride (TMN) was successfully prepared and used as a cathode for the degradation of tetracycline (TC) in the electro-Fenton system. Due to the high catalytic activity of TMN and the synergistic catalytic effect of Mo, the FeMo@NPC-700 cathode achieved 98.9% removal of TC within 30 min and 51% removal of total organic carbon (TOC) within 60 min. It was verified that Fe 3 N played an important role in the degradation of TC, contributing 68% to the degradation. In addition, quantitative analysis of the reactive oxygen species (ROSs) in the system showed that ·OH was the main ROS dominating the degradation of tetracycline. Finally, four possible pathways of TC degradation were proposed based on HPLC-MS analysis, and the toxicity of the intermediates was analyzed by ecological active-structure relationship. This study provides a reference for the preparation of MOF-derived carbon materials containing TMN.
研究领域:
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
Molecular Catalysis
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2024
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IF 3.9
Shengya Ge,Chenzhang Li,Peiyan Bi,Wei Hong
The operation of direct ethylene glycol fuel cells (DEGFCs) to generate electric energy from ethylene glycol rely on the effective electrocatalysts for the ethylene glycol oxidation reaction (EGOR). The fabrication of EGOR electrocatalysts with high activity, high durability and high resistance for corrosion, is essential important for the DEGFCs. Herein, we report a fabrication of Pd nanoparticles immobilized by the Ce-doped ZIF-67-derived carbon (Pd-CeO 2 /ZDC). The Pd nanoparticles are generated by the in-situ reduction reaction between the H 2 PdCl 4 and the Co nanoparticles formed during the ZIF-67 pyrolysis. Owe to the porous structure and N-doping inherited from the ZIF-67, the Pd and CeO 2 nanoparticles show a uniform distribution. Due to the enhanced EGOR electrooxidation kinetic promoted by the ZIF-67-derived support, the multiple-components and structure synergies, the resultant Pd-CeO 2 /ZDC catalyst affords a EGOR current density of 32.4 mA cm -2 , which is higher than the commercial Pd/C as well as the counterpart Pd/ZDC catalyst without CeO 2 . Furthermore, the Pd-CeO 2 /ZDC catalyst also present a better EGOR durability. This work provides a strategy for the design of EGOR catalyst with multiple-components and desired structure, which may inspire the new tactics for controllable design and synthesis of other electrocatalysts for various electrocatalysis.
研究领域:
材料科学
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电化学
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催化科学
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产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
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2023
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IF 7.7
Jiashu Liu,Lin Zhao,Hongzhi Geng,Bin Wang,Xuejiao Tong,Yihan Li,Daying Chen,Peizhe Sun,Yongkui Yang
Trichloroethylene (TCE) commonly exists in contaminated water as a persistent toxic pollutant . The advanced oxidation of persulfate (PS) is a promising method for degrading organic pollutants . Heterogeneous Fe-carbon composites prepared by pyrolysis with metal–organic frameworks (MOFs) have attracted attention. However, the intrinsic relationship between the physicochemical properties and catalytic performance of MOF-derived carbon compounds via PS is unclear. This study investigates TCE removal by Fe-MOF-derived carbon (MFC) with PS. The effects of the precursor template structure, pyrolysis temperature, and coexisting substances on TCE removal over the MFC/PS system are examined. Fe-MOF-derived from different precursor templates presented different TCE removal rates of 75.2–85.0%. The pyrolysis temperature of MFC alters the pore size, phase composition, and other properties, thereby affecting electron transport in the materials and catalyzing the degradation process. The total TCE removal reached 85.8% with MFC600, derived from MF88B and pyrolyzed at 600 ℃. This catalyst demonstrated excellent performance for PS degradation over a wide pH range (3−9). Moreover, free-radical and nonradical pathways coexist in the MFC600/PS system. During the TCE degradation process, oxygen vacancies, Fe species (Fe 0 , Fe 3 N, Fe 3 C, and Fe 3 O 4 ), and N species (pyridinic N and graphitic N) were active centers in the material and played a major role in catalytic degradation. They participated in the subsequent generation of HO•, SO 4 • - , and •O 2 - , and 1 O 2 . Furthermore, a possible degradation mechanism is proposed. This study elucidates the control of the physicochemical properties of carbon-based catalysts by exploiting MOF diversity.
研究领域:
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
Carbon Capture Science & Technology
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2024
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IF 10.4
Zizhao Chen,Shuai Yan,Guang Yang,Qiang Hu,Yingquan Chen,Hanping Chen,Yonggang Yao,Haiping Yang
To avoid sintering and carbon deposition of conventionally loaded catalysts, a spatial confinement strategy was employed to design a high-performance catalyst for the dry reforming of methane (DRM) reaction. With tri-metallic Ni-Co-Mg metal-organic framework (MOF-74) as a precursor, a novel nanostructured NiCoMg@C catalyst was synthesized, where the active metals Ni and Co were confined within the carbon framework derived from MOF pyrolysis. Characterization results indicate that the catalyst synthesized with MOF as template has a high specific surface area, well-dispersed metals, and strong metal-support interactions. The introduction of a high content of Mg promoted the dispersion of active metal Ni and Co and increased the number and strength of surface basic sites. Among the catalysts, NiCoMg 20 @C exhibited optimal catalytic activity, with initial CH 4 and CO 2 conversion rates reaching 75.13 % and 85.29 %, respectively. More importantly, the catalyst showed high stability during 100 h DRM reaction at 700 °C without significant carbon deposition. This research provides a new perspective for the development of DRM catalysts.
研究领域:
催化化学
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材料科学
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产品关联
DOI
高影响因子
FUEL
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2023
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IF 7.4
Hao Zhou,Lingmei Dai,Dehua Liu,Wei Du
MOF-derived carbon has extraordinary advantages including highly ordered morphology inherited from MOFs and improved chemical stability arising from its carbon nature, which may be a promising immobilized enzyme carrier. Herein, we prepared two MOF-derived carbon materials of different structures for the immobilization of lipase from Eversa® Transform 2.0 and systematically evaluated their application potential in biodiesel production system. Compared with C-C (derived from conventional microporous ZIF-8), 3DOM-C (derived from 3D ordered macro-microporous ZIF-8) exhibited superior immobilization performance with an 145.1% increase in enzyme loading and an 130.2% increase in activity. Moreover, lipase immobilized on 3DOM-C ( [email protected] ) showed better catalytic performance than [email protected] , with faster conversion rate in lipase-mediated biodiesel production. Remarkably, the higher surface hydrophobicity of the [email protected] was proved to be the key factor in its improved catalytic performance. Meanwhile, we found that the affinity between immobilized enzyme molecules and water significantly weakened the hydrophobicity of [email protected] and [email protected] , which could be of adverse effect on their application in biodiesel production. To enhance the hydrophobicity of immobilized lipase biocatalyst, a facile post-immobilization hydrophobic modification strategy was proposed by coating the [email protected] with polydimethylsiloxane (PDMS). The as obtained super hydrophobic [email protected] @PDMS biocatalyst showed excellent catalytic performance in biodiesel production, with a much higher initial reaction rate, which was 3.3 folds of that catalyzed by [email protected] , and 1.8 folds of that catalyzed by [email protected] . This work shed light on the great potential of constructing MOF-derived hierarchically ordered porous carbon for enzyme immobilization in extensive practical applications.
研究领域:
材料科学
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生物技术
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化学工程
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酶技术
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产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2022
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IF 9.221
Fuxin Liu,Xuechan Jiang,Nan He,Rong Yu,Zhonghua Xue,Xiuhui Liu
The dynamic balance of the redox system in living organisms can be disrupted by excessive superoxide anion (O 2 •− ), which would lead to oxidative stress and induce a variety of diseases. In this case, the antioxidant defense system plays a vital role in maintaining life and health. Thus, constructing a highly sensitive sensor for detecting O 2 •− and enhancing antioxidant defense systems are of great significance for reducing the risk of diseases caused by oxidative stress. In this work, a MOF-derived carbon-based nanomaterial (AgNPs-MC) was synthesized through silver-based metal organic framework. The non-enzymatic O 2 • − electrochemical sensor fabricated by AgNPs-MC showed excellent catalytic ability, wide linear range, and an ultra-low detection limit (12.3 pM, S/N = 3). In addition, it could be successfully used to detect O 2 •− released by living cells. More importantly, the synergistic effect of superoxide dismutase (SOD) and tea polyphenols (TP) to scavenge O 2 •− in biological systems was first studied by electrochemical method , which provides a novel strategy for improving the antioxidant defense system of living cells. Constructed sensing platform and developed antioxidant strategy have potential value for their future application in the diagnosis and treatment of diseases related oxidative stress.
研究领域:
电化学
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生物医学工程
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材料科学
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细胞生物学
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产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2022
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IF 9.221
Yunfeng Wang,Yingang Gui,Shasha He,Jiacheng Yang
The application of conventional sensors is limited due to energy supply issues and environmental problems, and current triboelectric nanogenerator (TENG) based self-powered sensing systems is hard to meet the specific requirement. In this paper, TiO 2 /Ni/C composites were prepared using MOF-derived Ni/C materials for SO 2 F 2 detection at room temperature. The excellent pore structure and high electrical conductivity of Ni/C material greatly improve the sensitivity properties of TiO 2 . The TiO 2 /Ni/C composites-based SO 2 F 2 sensor exhibits a wide detection range of 5–200 ppm concentration and a fast response/recovery time of 26 s/9 s, while its response value for 200 ppm SO 2 F 2 is 18.34 times higher than that of the pure TiO 2 -based sensor. Furthermore, by modifying the PVDF film with TiO 2 , the permittivity of PVDF is greatly improved, and the surface potential is 2.6 times higher than that of pure PVDF film. Eventually, a dual-layer hybrid TENG based on TiO 2 /PVDF composite film was constructed. Its upper TENG powers the TiO 2 /Ni/C composite sensor, and the lower hybrid TENG drives the thermohygrometer to realize a self-powered temperature and humidity-corrected SO 2 F 2 sensing system, which can accurately implement SO 2 F 2 gas concentration alarms at 10 ppm, 50 ppm, and 100 ppm at different humidity levels. This work broadens the application of TENG in the field of self-powered gas sensing while providing a new idea to achieve the trace detection of SO 2 F 2 at room temperature.
研究领域:
材料科学
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纳米技术
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传感器学
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环境监测
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能源材料
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Yuan Li,Shaoqian Jia,Ling-Xin Kong,Xiaotian Guo,Xinyi Lin,Dae Joon Kang,Huan Pang,Feng Yu
Accurate detection of nitrite plays a vital role in public health because excessive intake poses serious health risks. Metal-organic frameworks (MOFs) and their derivatives have emerged as a promising platforms for nitrite detection due to their adjustable structures and functionalization capabilities. In this study, we synthesized Ag/Cu-BTC by doping silver ions during Cu-BTC synthesis, followed by high-temperature carbonization to produce carbon-supported Ag-Cu bimetallic nanoparticles (Ag/Cu@C) for effective nitrite sensing. The carbon framework from MOF precursors not only enhances electrical conductivity and stability but also prevents nanoparticle aggregation. Silver addition enhances electron transfer efficiency and alters the electronic structure through synergistic interactions with copper, resulting in increased catalytic activity. The optimized Ag/Cu@C composite shows excellent sensing performance with a detection limit of 50 nM, high sensitivity (855.32 μA mM −1 cm −2 ), and a wide linear response range (0.2–10,000 μM). The sensor maintains 98.5–103.2 % recovery against 10-fold concentrations of common interferents (Cl - , NO 3 - , SO 4 2- , glucose), and retains 92.3 % initial current after 28 days, demonstrating exceptional selectivity and operational stability. These features highlight its significant potential for practical applications in environmental monitoring and food safety testing.
研究领域:
电化学传感
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纳米材料
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金属有机框架（MOFs）
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环境监测
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食品安全
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）