INORGANIC CHEMISTRY
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2026
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IF 4.6
Chen-Yuan Ma,Xin-Mei Zeng,Jia-Tong Li,Xing-Yu Bi,Zhi Fang,Mei-Hong Duan
High-performance birefringent crystals are crucial for advancing modern optics. Regrettably, conventional birefringent crystals are usually limited by narrow transmission windows or insufficient birefringence. Recognizing that birefringence originates from structural anisotropy, we herein assembled anisotropic π-conjugated urea ligands through a cadmium-based open framework. By leveraging the distorted Cd-based octahedra and urea-derived hydrogen-bonding network, a novel birefringent crystal, Cd[C(NH2)2O]2Cl2, was successfully obtained. Cd[C(NH2)2O]2Cl2 was characterized by a characteristic 4 × 4 × 6 open-framework skeleton, wherein the repeating building unit {Cd[C(NH2)2O]2Cl4} is constructed by the oxygen sharing between distorted CdCl4O2 octahedra and planar [C(NH2)2O] groups. Notably, Cd[C(NH2)2O]2Cl2 achieved an excellent balance between wide bandgap and substantial optical anisotropy by exhibiting a short UV cutoff edge of 201 nm and a birefringence of 0.117@546 nm, which should benefit practical applications.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Anfeng Zhu,Guodong Tang,Sanjun Zhi
An rGO-cellulose carbon aerogel with coupled Ni/NiO fibers and particles enables multiscale electromagnetic regulation. • A secondary redox calcination strategy constructs high aspect ratio Ni/NiO nanofibers with abundant heterointerfaces. • Interfacial polarization, defect dipoles and magnetic loss synergistically achieve impedance matching and attenuation. • Thickness-dependent absorption enables near full band microwave attenuation and effective RCS reduction. Electromagnetic wave–absorbing materials are critical for electromagnetic interference (EMI) suppression in electronic devices and stealth applications in military equipment. Herein, a structurally coupled three-dimensional C/Ni/NiO composite is fabricated by combining a graphene-reinforced cellulose-derived carbon aerogel with in situ generated fibrous Ni/NiO heterostructures. Freeze-casting and carbonization create an interleaved conductive lamellar framework, while secondary calcination induces anisotropic growth of high-aspect-ratio Ni/NiO fibers through redox-driven stress regulation. The resulting hierarchical heterointerfaces significantly enhance interfacial polarization, anisotropic magnetic loss, and multiple scattering, fostering effective synergy between dielectric and magnetic dissipation. With optimized composition, the composite exhibits a minimum reflection loss of −50.7 dB. Furthermore, thickness tunability facilitates near-full-band absorption, and significant radar cross-section (RCS) reduction is demonstrated across a wide range of incident angles. demonstrating the potential of structurally coupled 3D heterostructures for high-performance electromagnetic wave absorption. Download: Download high-res image (240KB) Download: Download full-size image The interconnected 3D carbon–magnetic architecture enables efficient microwave penetration and multiple internal reflections, while abundant C–Ni/NiO heterogeneous interfaces induce strong interfacial polarization, synergistically coupled with defect-dipolar dielectric loss and eddy current–dominated magnetic dissipation to achieve optimized impedance matching and rapid energy attenuation. Consequently, the optimized CNO-2 exhibits an ultralow RLmin_\text{min}min of −50.7 dB at a thickness of 2.52 mm with a broad effective absorption bandwidth of 3.84 GHz. In addition, pronounced radar cross-section reduction is sustained over wide incident angles, with the main-lobe RCS suppressed from 5.37 to −27.86 dB·m², highlighting the efficacy of this lightweight, low-loading structural–interfacial coupling strategy for high-performance microwave absorbers.
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Green Carbon
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2026
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IF 14.2
Shihao Li,Xiaoyang Yue,Fei Huang,Qian Zhang,Xiao Huang,Jingjing Zhao,Luwei Bao,Yanjun Jiang
Unspecific peroxygenases (UPOs) enable the selective hydroxylation of inert C–H bonds using H 2 O 2 under mild conditions. However, their practical application is fundamentally limited by oxidative deactivation at elevated H 2 O 2 concentrations. Herein, a highly synergistic photobiocatalytic system is constructed by covalently immobilizing UPOs onto a Rh-complex-coordinated covalent organic framework (COF) to facilitate the in-situ generation of H 2 O 2 and sequential enzymatic utilization. Specifically, a COF featuring a pyridinic imine structure (COF PyIm ) is designed to precisely anchor Rh(III) complexes. Compared with its bipyridine-structured analog (COF Bpy ), COF PyIm provides more coordination sites and a shorter electron-transfer distance. Consequently, the photocatalytic H 2 O 2 synthesis rate reached 22.17 mM·g -1 ·h -1 , representing a performance improvement of approximately 40%. This enhancement is attributed to the optimized pyridine–imine coordination microenvironment, which promotes charge separation and electron transfer. Subsequently, UPO from Agrocybe aegerita ( Aae UPO) is covalently immobilized onto COF PyIm to yield Aae UPO@Rh-COF PyIm , which achieves efficient spatiotemporal coupling between in situ H 2 O 2 generation and enzymatic hydroxylation of the C–H bond. This integrated photobiocatalyst can achieve 90% yield, >99% enantiomeric excess ( ee ), and a turnover number of 41,666 in the asymmetric hydroxylation of ethylbenzene. It also exhibits excellent reusability (retaining 70.4% of its initial activity after six cycles) and broad substrate scope.
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高影响因子
ENVIRONMENTAL RESEARCH
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2026
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IF 8.2
Minghuan Wang,Hekai Zhang,Yunfei Song,Yilei Zhu,Yaning Zong,Peng Wei,Zheng Guo,Li Yin,Jianwei Fu
s The practical application of metal-organic framework (MOF)-derived catalysts in advanced oxidation processes (AOPs) is often hindered by challenges in recoverability and stability in complex water matrices. To overcome these limitations, we developed a scalable strategy to fabricate N-doped carbon nanofibers with coexisting atomic Co sites and metallic Co nanoparticles (Co-N/C) by electrospinning a ZIF-67/polyacrylonitrile (PAN) composite followed by controlled pyrolysis. This integrated design yields a catalyst with a hierarchical porous structure and a high specific surface area (317.55 m 2 g -1 ), which synergistically enhances mass transfer and exposes abundant active sites. The optimized Co-N/C catalyst demonstrates ultrafast catalytic activity, achieving over 98% degradation of methylene blue (MB) within 5 minutes via efficient peroxymonosulfate (PMS) activation. Mechanistic studies, supported by quenching experiments and density functional theory (DFT) calculations, reveal that the degradation proceeds via a nonradical-dominated pathway, with singlet oxygen ( 1 O 2 ) generated through interfacial electron transfer playing the primary role, while sulfate (SO 4 • - ) and hydroxyl (•OH) radicals from Co 2+ /Co 3+ redox cycling serve a secondary function. The catalyst exhibits excellent operational robustness, maintaining high efficiency (>92%) across a broad pH range (3-9) and showing remarkable reusability with minimal activity loss over five consecutive cycles. Furthermore, ecological structure-activity relationship (ECOSAR) modeling indicates a significant reduction in the environmental toxicity of the degradation intermediates. This work provides not only an effective and eco-friendly candidate for dye wastewater remediation but also fundamental insights into the rational design of MOF-derived functional materials for superior, nonradical-predominant AOPs.
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PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2026
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IF 19.9
Rana Ali Ahmad,Yijin Wu,Zenglong Wu,Junxian Liu,Tengxiu Tu,Yongying Tian,Zhixian Mao,Jian Kang,Shan Chen,Huajie Yin
All inorganic molten salt electrolytes (MSEs) are attractive for electrochemical energy storage but typically require elevated operating temperatures due to high melting points normally exceeding 120°C. Here we report a low-melting, quinary molten salt electrolyte comprising AlCl 3 , NaCl, KCl, KOH, and LiCl (ANKKL; molar ratio 0.6:0.2:0.2:0.15:0.2) that remains liquid at near 60°C. The incorporation of multiple salt components increases configurational entropy and promotes diverse complex solvation structures, which suppress crystallization and stabilize the molten phase at reduced temperature. ANKKL exhibits high ionic conductivity (∼0.15 S cm −1 at 75°C). Ab initio molecular dynamics and Raman spectroscopy confirm the formation of multiple Al-based complex anions (AlCl 4 − , Al 2 Cl 7 − , AlCl 3 OH − , and Al 2 Cl 6 OH − ), indicating a disordered ionic environment favorable for fast ion transport. Couple ANKKL with hierarchically ordered macroporous carbon electrode featuring interconnected micro/meso/macropores yields dual charge storage that combines electric double-layer capacitance and nanoconfinement-enabled pseudo-capacitance. Devices deliver 570 F g −1 and 87.5 Wh kg −1 at 1.3 kW kg −1 (75°C), as well as excellent capabilities of thermal re-cycling and self-discharge suppression, retaining ∼99% capacitance after 10 000 cycles. These results demonstrate that entropy-engineered multicomponent molten salts represent practical, thermally stable, and cost-effective electrolyte platform for high-energy supercapacitors operating below 100°C.
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高影响因子
ACS Omega
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2026
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IF 5.2
Thuy Trang T. Vuong,Vu Van Thang,Phuong Nam Le Pham,Phi Long Nguyen
The rapid increase of battery and carbon waste has raised an urgent demand for efficient recycling methods, along with the development of environmentally friendly energy storage materials. In this study, zinc ferrite (ZnFe2O4, ZFO) was synthesized from spent batteries, while graphene nanosheets (GNs) was obtained from recycled carbon, and then combined to form ZFO@G composites for supercapacitor applications. Characterization techniques including XRD, Raman, SEM, and electrochemical analyses (CV, GCD, EIS) were employed to elucidate the crystal structure, surface morphology, and electrochemical performance of the materials. The results reveal that the incorporation of GNs improves the electrochemical performance of ZFO, delivering a specific capacitance of 606.69 F g–1 at 1 A g–1 with a capacitance retention of ∼58.8% after prolonged cycling. This study not only demonstrates the potential of recycled materials for supercapacitor applications but also contributes to mitigating environmental issues caused by battery waste.
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PubMed
高影响因子
MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Chunyan Ren,Guoliang Ding,Mengru Chen,Xiaojun Chen,Gang Peng
Carbon material derived from lotus petiole exhibits enzyme-like activity. • The multiple enzyme-like activities of Cu@C-AuNPs can be switched by pH. • A colorimetric-electrochemical dual-mode aptasensor was successfully constructed. • The sensor provides a detection limit as low as 4.35 × 10 −6 ng mL −1 . • The developed method is suitable for controlling AFB1 in rice. Rapid and reliable detection of aflatoxin B1 (AFB1) is of paramount significance for food safety control and public health protection. Herein, a novel lotus petiole-derived pH-switchable Cu@C-AuNPs nanozyme featuring versatile enzyme-like activities was rationally engineered to fabricate a dual-mode colorimetric-electrochemical aptasensor for the ultrasensitive and selective detection of AFB1. Benefiting from its sharp pH-switchable catalytic behavior, the as-prepared nanozyme displays prominent peroxidase-like activity under acidic conditions (pH 4.0), efficiently catalyzing H 2 O 2 -mediated oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) to enable visual colorimetric readout; in contrast, it switches to distinct catalase-like activity under neutral conditions (pH 7.4), decomposing H 2 O 2 to generate oxygen and thereby producing quantifiable electrochemical signals. Under optimized experimental parameters, the colorimetric mode exhibits a linear response from 1 × 10 −2 to 1 × 10 3 ng mL −1 with a limit of detection (LOD) of 6.96 × 10 −3 ng mL −1 , whereas the electrochemical mode achieves a broader linear range of 1 × 10 −5 to 1 × 10 3 ng mL −1 with a superior LOD of 4.35 × 10 −6 ng mL −1 . This dual-signal sensing strategy not only furnishes a robust and accurate platform for AFB1 detection but also holds promising application prospects in on-site and laboratory-grade food safety monitoring. A lotus petiole-derived Cu@C-AuNPs nanozyme with pH-switchable activities enables dual-mode detection of aflatoxin B1. At pH 4.0 (colorimetric), peroxidase-like activity oxidizes TMB to oxTMB, giving an absorbance increase (LOD 6.96 × 10 −3 ng mL −1 ). At pH 7.4 (electrochemical), catalase-like activity decomposes H 2 O 2 to O 2 , producing a current decrease (LOD 4.35 × 10 −6 ng mL −1 ). This aptasensor provides reliable cross-validation for food safety monitoring. Download: Download high-res image (177KB) Download: Download full-size image
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PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2025
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IF 7.8
Lei Hu,Yuxuan Tian,Ning Ding,Hong Liu
In this study, iron-doped molybdenum disulfide (FeMoS 2 ) was hydrothermally synthesized and subsequently coupled with calcined graphitic carbon nitride (g-C 3 N 4 ) to construct a heterojunction . Comprehensive characterization confirmed the stable crystalline structure of the composites and the formation of robust interfacial coupling, which facilitated efficient photogenerated charge separation. Furthermore, UV-Vis diffuse reflectance spectroscopy revealed a significant extension of the visible-light absorption edge compared to pristine FeMoS 2 , with the bandgap narrowing to 1.99 eV. Under optimized conditions (0.6 g/L catalyst dosage, 1.0 mM peroxydisulfate (PDS), pH 6), the FeMoS 2 /g-C 3 N 4 /PDS system achieved 88 % Chlorella vulgaris inactivation in 60 min under visible light, retaining more than 60 % efficiency after five cycles. Mechanistic investigations revealed that superoxide radicals (·O 2 - ) and photogenerated holes (h + ) synergistically inactivated Chlorella via reactive oxygen species (ROS)-induced membrane peroxidation and antioxidant system disruption. Algal physiological assays and microscopic imaging further corroborated that photocatalytically generated ROS compromised cellular membrane integrity and induced chloroplast degradation.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
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IF 5.1
Zhenpan Chen,Huibin Liu,Jie Cai,Gexing Meng,Liqin Zeng,Cen Zhang,Fangfang Zhao,Kuiyi You,He’an Luo
Chemical looping technology offers promising opportunities for converting CO 2 /H 2 O to high value-added products (e.g., CO, H 2 , and C 2 H 2 ) by using well designed metal oxides as oxygen carriers. Herein, the calcium oxide (CaO) was used as oxygen carrier to synthesize acetylene (C 2 H 2 ) from inorganic carbon material (e.g., active carbon (AC)) and H 2 O via chemical looping route, which is constituted by two basic steps: solid-phase synthesis of calcium carbide (CaC 2 ) (redox reaction) and C 2 H 2 production (metathesis reaction). To further enhance the energy utilization efficiency of this chemical looping process, transition metal oxides (ZrO 2 , La 2 O 3 , and Y 2 O 3 )-based catalysts were used to promote the solid-phase redox reaction between CaO and carbon reactants. Compared with blank test, 5 wt% cubic Y 2 O 3 as a catalyst that added into CaO-AC mixture can further increase the CaO conversion by ∼40% under optimal conditions and the onset solid-phase reaction temperature between CaO and AC decreases to ∼1620 °C. This catalytic effect is ascribed to the enhanced chemical reaction at the solid–solid interface of CaO and AC reactants and promoted ionic conductivity (e.g., Ca 2+ , O 2– conduction) of the bulk after adding Y 2 O 3 catalyst, leading to a decreased average apparent activation energy ( E a ) (∼909 kJ mol −1 ) of CaC 2 formation. Our work demonstrates that constructing of catalytic solid-phase reaction system by adding selected transition metal oxides as catalysts can effectively reduce the E a of solid-phase CaC 2 synthesis and enhance the overall efficiency of chemical looping synthesis of C 2 H 2 , which sheds light to synthesize organic compounds from inorganic materials in large scale.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2023
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IF 15.1
Lixia Jia,Qi Zhou,Yuanwei Li,Weizhong Wu
In this study, Mn-C composites using different MnO 2 contents and solid carbon material were prepared to explore the synchronous removal performance of nutrients and SMX. Higher nitrate removal performance (97–98 %) with quickest nitrate removal rate (4.97 mg N L -1 h −1 ) was obtained in Mn_20 systems. The increased Mn content and Mn-P compound were observed via surface characteristics, indicating the involvement of MnOx in pollutants removal , particularly for higher phosphorus removal (84–89 %) via Mn-P precipitation and BioMnOx adsorption. Nevertheless, compared to systems based on Mn_0 composites (74 %), systems with Mn-C composites presented lower SMX reduction efficiency (34–51 %), which might be attributed to the large Mn(II) accumulation, impairing certain microbes and lower the MnOx function. Higher abundance of genera affiliated to Bacteroidetes_vadinHA17 and Rhodocyclaceae was observed in the Mn-C composites, as well as the gathering of Geobacter and Desulfovibrio as keystone taxa, responsible for the removal of nitrate and SMX and microbial interactions. Besides, the increase of sulfonamide ARGs was closely related to the predominant microbes in the Mn-C composites, which acted as the hosts of ARGs. This study broadens the knowledge of Mn-C composites in synergetic removal of nutrients and organics, and supports the potential application of manganese oxide in wastewater treatment.
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高影响因子
Journal of Energy Storage
·
2023
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IF 9.4
Haidong Xie,Chunping Hou,Zeyu Yue,Lidong Zhai,Hehang Sun,Hui Lu,Jiandong Wu,Shaolin Yang,Yong Ma
SiO x has high specific capacity for lithium-ion batteries, but the rate and the cycling performances need to be further improved to satisfy the needs of the future. In this study, the C, N, P doping SiO x /G@CNP anodes are prepared by a facile ball milling and heat treatment process . The electrochemical performances of SiO x are improved by the synergistic effect of C, N, P doping. The SiO x /G@CNP-2 anode with the addition of 20 wt% phytate shows the best electrochemical performances and maintains a specific capacity of 77.45% after 150 cycles at 0.2 A·g −1 . Importantly, it exhibits a remarkable rate performance with specific capacities of 528.2 mAh·g −1 and 370.0 mAh·g −1 even at 3.0 and 5.0 A·g −1 , respectively. Artificial graphite and the carbon shell formed by the thermal decomposition of citric acid contribute to the structural stability of SiO x and improve the cycling performance of the material. Moreover, the addition of P element and high content of pyridine N accelerates the rate of Li + deintercalation, and the conductivity and ion diffusion coefficient of the material are effectively promoted, thus greatly improving the rate performance of the material. This work presented herein provides a simple and feasible method for the preparation of high-performance anode materials.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
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IF 15.1
Mingrui Guo,Meng Chen,Jixiang Xu,Chao Wang,Lei Wang
Introducing defects and heteroatoms on carbon nitride (g-C 3 N 4 , CN) framework are effective ways to enhance its photocatalytic activity by regulating light absorption and charge carriers separation. Herein, a mechanochemical method was employed to synthesize Br-doped C, N-deficient CN (CN V -mCN-Br) via ball-milling of N-containing precursor and 6-Bromopyridine-3-carbaldehyde (BrPyCHO) followed by calcining. The ball-milling-evolved mechanical forces and BrPyCHO-derived HBr induced formation of C, N vacancies and C-Br bond in CN V -mCN-Br framework. The CN V -mCN-Br exhibited curled nanosheets morphology and separated electrons-holes distribution. The photocatalytic H 2 evolution rates of 1 %Pt-loaded CN V -mCN-Br in distilled water and simulated seawater were 22.21 and 34.41 mmol g –1 h −1 , respectively with 10% triethanolamine . The corresponding apparent quantum yields were 25.87% and 40.08% at 420 nm. This work provides a facile technique to simultaneously introduce defect and heteroatom in CN for high-efficiency photocatalytic H 2 evolution.
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