CHINESE JOURNAL OF CHEMICAL ENGINEERING
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2021
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IF 3.171
Tao Zhao,Dazhong Zhong,Genyan Hao,Guang Liu,Jinping Li,Qiang Zhao
Metal-organic frameworks (MOFs) exhibit excellent application potential in the field of electrocatalysis. In this study, we first prepare MIL-100 nanosheets on nickel foam (MIL-100/NF) and then successfully anchor Ag nanoparticles (NPs) on the nanosheets (Ag@MIL-100/NF) for oxygen evolution reaction (OER) catalysis. This strategy dramatically improves the conductivity of MIL-100 and the Ag NPs are uniformly dispersed on the nanosheets. The Ag@MIL-100/NF catalyst has excellent electrocatalytic performance and long-term corrosion resistance, with a low overpotential of 207 mV and a long-term stability of at least 100 h at a current density of 50 mA·cm −2 . The experimental results demonstrate that this high OER catalytic performance is due to the improved charge transfer after loading Ag NPs, the combination of nanosheets and highly dispersed Ag NPs that expose more active sites and the adjusted chemical valence states of Fe and Ni in MIL-100. This work provides a surface decoration approach for the preparation of excellent catalysts directly used in the OER.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2020
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IF 16.683
Ying Hou,Yu-Lin Liang,Peng-Chao Shi,Yuan-Biao Huang,Rong Cao
It is imperative to develop efficient and robust electrocatalysts for CO 2 reduction reaction (CO 2 RR) that would overcome the sluggish kinetics and exhibit high current density. Porous carbon nanotubes with highly delocalized electrons and tubular structure are promising candidates for CO 2 RR due to it is favorable for the accessible of substrates to active sites. However, there are rare reports of using carbon nanotubes to stabilize single-atom active sites for CO 2 RR. Herein, a self-sacrificial template method is developed to disperse single atomic Ni sites on N-doped carbon nanotubes from metal-organic frameworks (MOFs) for highly efficient CO 2 RR. Compared with the corresponding other N-doped carbon stabilized Ni single-atom catalysts, the obtained hierarchically porous Ni/NCTs exhibited enhanced selectivity and activity for the electrochemical reduction of CO 2 to CO with Faradaic efficiency of 98 %, turnover frequency (TOF) of 9366 h −1 and CO current density of 34.3 mA cm -2 at the applied potential of -1.0 V.
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Frontiers of Chemical Science and Engineering
·
2023
·Vol. 17
·期 7
·930-941
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IF 4.5
Tian Guodong,Duan Chao,Zhou Bingxu,Tian Chaochao,Wang Qiang,Chen Jiachuan
Membrane technology for wastewater remediation has aroused wide interest owing to its unique properties and potential applications. However, it remains challenging to explore green, efficient and robust membrane material and technique for complex wastewater treatment. Herein, we proposed using a simple electrospinning and in situ seeding method to fabricate a lignin-based electrospun nanofiber membrane (LENM) decorated with photo-Fenton Ag@MIL-100(Fe) heterojunctions for efficient separation of oil/water emulsions and degradation of organic dye. Thanks to the embedded lignin in LENM, an ultrahigh MIL-100(Fe) loading (53 wt %) with good wettability and high porosity was obtained. As a result, the hybrid Ag@MIL-100(Fe)/LENM exhibited excellent oil/water emulsions separation efficiency (more than 97%) without a compromise of water flux. Moreover, the hybrid membrane showed an excellent dye removal with degradation of 99% methylene blue within 30 min under illumination, which is attributed to a synergy of dye adsorption/enrichment and photo-Fenton catalytic degradation from Ag@MIL-100(Fe). Therefore, the lignin-based photo-Fenton hybrid membrane can lay the foundation for the preparation and application of green, sustainable and versatile membrane materials and technologies for efficient complex wastewater remediation.
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高影响因子
ACS Applied Materials & Interfaces
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2025
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IF 8.2
Xiaodie Zhao,Anyang Yu,Tian Jiang,Qi Fan,Pingping Sun,Qingyu Xu
Tailoring the crystalline structure and facet orientation of T-Nb2O5 anode electrodes is pivotal for optimizing the Li+ transport kinetics. Herein, a crystallization engineering strategy is employed to synthesize urchin-like T-Nb2O5 microspheres composed of single-crystalline whiskers growing along the (001) orientation. These whiskers are characterized by nearly 100% exposed vertical (001) facets that accelerate Li+ diffusion. Furthermore, the remaining N3– expands the interlayer spacing, which optimizes Li+ transport pathways. Benefiting from these synergetic effects, abundant ion entry and exit sites with smooth ion transport channels promote the rapid Li+ diffusion in the T-Nb2O5 microspheres, delivering a high capacity and improving the rate performance (324 mAh g–1 at 0.05 A g–1, 87.5 mAh g–1 at 5 A g–1). This work presents a strategy of crystallization engineering for the preparation of fast-charging electrode materials and provides deep insights on the correspondence among morphology, lattice structure, and electrochemical performance.
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PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2025
·
IF 9
Xianyun Ma,Bowen Zhu,Zuopeng Li,Min Wang,Chang-qing Miao,Yajia Liu,Sanbing Zhang
Defect engineering is a promising approach for constructing highly efficient catalytic activity based on metal–organic frameworks (MOFs). In this study, a defective MOFs, referred to as quasi-MIL-100(Fe), was synthesized by moderate synthesis method and then careful thermal treatment at an atmosphere ranging from 150 to 450 °C, linking crystalline materials and the associated metal oxides. MIL-100(Fe) heat-treated at 250 °C (referred to as M-250) partially breaks coordination bonds, resulting in a crystalline-to-amorphous transformation, increased porosity, and elimination of ligands. Compared to pristine MIL-100(Fe), M-250 possessed more reactive sites and exhibited the highest photo-Fenton degradation of ciprofloxacin with 95.6 % removal efficiency in 90 min, despite the unfavorable photo properties for photo-Fenton performance due to the destruction of the crystal structure. Additionally, density functional theory (DFT) calculations, combined with free radical quenching and mass spectrometry analysis, elucidated the catalytic mechanism. These findings highlight the significant potential of quasi-MOFs for applications in the photo-Fenton reaction.
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高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-11
·
IF 15.7
Tang Fang,Yang Yang,Liu Congcong,Yang Shoumeng,Xu Shitan,Yao Yu,Yang Hai,Yang Yaxiong,He Shengnan,Pan Hongge,Rui Xianhong,Yu Yan
Constructing high cycling stability and rate performance under limited or ideally zero sodium excess, namely initially anode-free design, which can obtain the ultimate energy density of sodium metal batteries, is highly desired yet remains challenging. Here, highly ordered and regularly arranged Al(100) single crystal current collector is constructed based on the grain boundary migration theory through a simple high-temperature calcination method, which eliminates the diffusion resistance of Na + migration at grain boundaries, reduces the nucleation overpotential and interface diffusion energy barrier, increases the Na + transfer rate, and exhibits uniform reversible sodium deposition capability. Profiting from the modified current collector surface, the Al(100) electrode can be cycled stably for 500 cycles with a Coulombic efficiency of 99.9% (2 mA cm −2 /2 mAh cm −2 ), and its symmetrical cell delivers an adequate Na plating/stripping stability over 2500 h (0.5 mA cm −2 /0.5 mAh cm −2 ) and 1500 h (1 mA cm −2 /1 mAh cm −2 ). The Al(100) current collector enhances the rate performance of the initially anode-free Al(100) ‖ Na 3 V 2 (PO 4 ) 3 full battery, enabling it to sustain 100 cycles at a high current density of 1.755 mA cm −2 with a final discharge capacity of 68.0 mAh g −1 (constant current-constant voltage charging protocol).
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PubMed
高影响因子
Journal of Composites Science
·
2025
·Vol. 9
·期 5
·250
·
IF 3.7
Waheed Rehman,Faiq Saeed,Samia Arain,Muhammad Usman,Bushra Maryam,Xianhua Liu
NiFe2O4and TiO2are widely studied for photoelectrochemical (PEC) applications due to their unique properties. Nitrogen-doped graphene (NG) and metal–organic frameworks (MOFs), such as MIL-100(Fe) (where MIL stands for Materials of Lavoisier Institute), are commonly incorporated to enhance PEC performance by offering a high surface area and facilitating efficient charge transport. Composite systems are commonly employed to overcome the limitations of individual PEC catalysts. In this study, a highly efficient NiFe2O4/NG@MIL-100(Fe)/TiO2photoanode was developed to enhance photoelectrochemical water-splitting performance. The composite was synthesized via a hydrothermal method with a two-step heating process. X-ray diffraction confirmed the expected crystal structures, with peak broadening in NiFe2O4indicating reduced crystallite size and increased lattice strain. X-ray photoelectron spectroscopy of the Ni 2p and Fe 2p regions validated the successful integration of NiFe2O4into the composite. Electrochemical analysis demonstrated excellent performance, with linear sweep voltammetry achieving a peak photocurrent density of 3.5 mA cm−2at 1.23 V (vs RHE). Electrochemical impedance spectroscopy revealed a reduced charge-transfer resistance of 50 Ω, indicating improved charge transport. Optical and electronic properties were evaluated using UV-Vis spectroscopy and Tauc plots, revealing a direct bandgap of 2.1 eV. The composite exhibited stable photocurrent under amperometric J-t testing for 2000 s, demonstrating its durability. These findings underscore the potential of NiFe2O4/NG@MIL-100(Fe)/TiO2as a promising material for renewable energy applications, particularly in photoelectrochemical water splitting.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2017
·
IF 6.216
Ying Fang,Jia Wen,Guangming Zeng,Feiyue Jia,Siyu Zhang,Zhilong Peng,Haibo Zhang
Four microporous MIL-100(Fe) metal–organic frameworks (MOFs) synthesized with or without mineralizing agents by hydrothermal method were evaluated for their characteristics, water stability and adsorption performance towards Cr(VI). In the study, we compared two traditional mineralizing agents (i.e. hydrofluoric acid (HF) and tetramethyl ammonium hydroxide (TMAOH)) and an environmental-friendly mineralizing agent sodium carbonate (Na 2 CO 3 ) for the likelihood of quality improvement of MIL-100(Fe). Results showed that MIL-100(Fe) prepared using Na 2 CO 3 mineralizing agent exhibited excellent physicochemical property and higher adsorption capacity for Cr(VI) than the others. The adsorption of Cr(VI) on MIL-100(Fe)_Na 2 CO 3 fitted better with Langmuir isotherm model and pseudo first-order kinetics model. Desorption and regeneration of used MIL-100(Fe)_Na 2 CO 3 were achieved using NaOH (0.01 M) with a high desorption efficiency of 73% in four hours. Based on the improved structural characteristics and excellent adsorption performance of MIL-100(Fe)_Na 2 CO 3 , using the environmental friendly and low-cost Na 2 CO 3 as mineralizing agent could be an alternative and preferred pathway in the preparation of MOFs materials.
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Wang Xinghuo,Huang Yaru,Wang Hui,Yin Shiheng,Xu Chuanhui,Wang Zuankai,Chen Yukun
Constrained by materials, structures, and interface, achieving high sensitivity, wide strain range, and linearity simultaneously remains an impossible triangle for flexible sensors. Herein, we propose 3D super-interface strategy based on patterned rubber substrate-conductive crack layer, successfully developing a microcrack super-interface flexible sensor (MSFS) with ultra-sensitivity (0–10% strain, GF 1.1 × 10⁸ and linearity 0.98). The 3D super-interface relies on the synergistic micro/nano level physical anchoring, and hydrogen bonding interfacial interactions between the rubber matrix and conductive crack layer, achieving strong interlayer bonding. During the sensing process, the crack structure endows the sensor ultra-sensitivity within 0–10% strain range; while the 3D super-interface ensures continuous electrical conductivity under >50% strain conditions. MSFS holds potential application value in monitoring expansion in silicon anode batteries. When the battery expansion reaches 2%, its resistance change can be as high as 22-fold. This approach enables the customized design of flexible sensors for ultra-sensitivity applications.
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PubMed
高影响因子
POLYHEDRON
·
2026
·
IF 2.8
Wang Ye,Xiang Li,Jian Tian,Xiyue Feng,Kexin Luo,Xinru Liu,Ling Li,Yingxi Wang
Water pollution has emerged as a critical global challenge, with persistent antibiotic residues posing severe threats to ecosystems, calling for efficient aqueous remediation technologies. In this study, a MIL-100(Fe) −24 /MoS 2 hybrid catalyst was constructed by integrating MIL-100(Fe) with MoS 2 . The hybrid material served as a heterogeneous catalyst activating peroxymonosulfate (PMS) in a photo-Fenton system for tetracycline (TC) degradation, achieving 80% removal within 30 min. Quenching experiments verified the involvement of both radical and non-radical pathways, with SO 4 • − and singlet oxygen ( 1 O 2 ) identified as the dominant reactive species. The effects of key parameters including catalyst dosage, PMS concentration, and initial pH were systematically investigated. Degradation intermediates were analyzed, and the catalyst exhibited satisfactory reusability and stability.
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BIOTECHNOLOGY AND BIOPROCESS ENGINEERING
·
2013
·Vol. 17
·期 6
·1128-1134
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IF 1.277
Li Bin,Wang Lei,Su Lingqia,Chen Sheng,Li Zhaofeng,Chen Jian,Wu Jing
OmpA signal peptide mediated cgt gene from Paenibacillus macerans JFB05-01 was cloned and expressed in E. coli BL21 (DE3). The effects of glycine and Triton X-100 on extracellular production of α-cyclodextrin glycosyltransferase (α-CGTase) were investigated. When supplemented with Gly or Triton X-100 to the culture media individually, the secreted extracellular enzyme reached 32 or 33 U/mL at 48 h of cultivation, respectively. When supplemented with Gly and Triton X-100 together, the extracellular α-CGTase activity reached 48 U/mL after 48 h cultivation, which was 20-fold of the control group without any additives. Analysis of membrane permeability demonstrated that addition of glycine and Triton X-100 enhanced the permeability of both outer and inner membrane. The potential mechanism of the enhanced protein secretion was discussed.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Kaige Li,Jianhua Qu,Zhengni Pan,Yuxin Hou,Wenzhen Li,Mingyao Ma,Jingyi Wang,Juncheng Wang,Chengjun Ge,Jiwei Luo,Ying Zhang
Near-100% selective 1 O 2 generation via Fe-pyridinic N 4 sites. • Metal-atom utilization enhanced by 10 2 -10 4 -fold in FeSA-N-C-2S. • Fe-pyridinic N 4 shifts d -band center, lowering 1 O 2 energy barrier and tuning pathway. • 1 O 2 steady-state concentration positively correlates with Fe-pyridinic N 4 proportion. • A universal strategy creates various metal-based SACs with > 90% 1 O 2 selectivity. The type and quantity of nitrogen ligands in the first-shell coordination structure (FSCS) of single-atom catalysts (SACs) govern catalytic performance. However, current research largely focuses on nitrogen atom count, overlooking its chemical structure. Herein, by reconfiguring the FSCS from Fe-pyrrolic N 4 to Fe-pyridinic N 4 (FeSA-N-C-2S), we achieve selectivity approaching 100% for singlet oxygen ( 1 O 2 ) generation. Mechanistically, Fe-pyridinic N 4 shifts the d -band center toward the Fermi level via axial d_z² orbital hybridization, reducing Fe d -orbital occupancy, which enhances electron transfer through the conjugated π-system of pyridinic N, lowering the activation barrier for 1 O 2 generation and optimizing the reaction pathway. This facilitates complete degradation of electron-rich pollutants like 2,4,6-trichlorophenol, with a 4.3-fold increase in rate constant and a 21.5-fold higher metal-atom utilization efficiency compared to the FeSA-N-C-1S. Moreover, 1 O 2 steady-state concentration exhibits a significant linear positive correlation with Fe-pyridinic N 4 proportion, which can be precisely modulated by adjusting the pyrolysis temperature and metal-to-precursor ratio. This insight extends to other transition metals (Co, Cu, Mn), affording > 90% 1 O 2 selectivity. Long-term continuous-flow experiments and life-cycle assessments highlight the potential for scalable water treatment. Our work deciphers how coordination structure governs reactive oxygen species, providing a universal design paradigm for metal-pyridinic N 4 catalysts. Download: Download high-res image (210KB) Download: Download full-size image
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