Nanoscale
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2026
·
IF 5.2
Yaxin Xu,Zhongshuang Xu,Huanran Miao,Zhimao Yang,Chuncai Kong,Qikui Fan
Controlled phase evolution in catalytic architecture design remains challenging for selective CO2-to-formate conversion using non-precious metals. We present a sequential plasma-electrochemical strategy converting BiOCl precursors into nanoporous Bi networks. Plasma treatment of BiCl3-C yields metastable BiOCl with atomic disorder and mesopores; subsequent electrochemical activation reconstructs it into interconnected Bi nanoporous structures (20-50 nm pores) for efficient CO2 reduction. The catalyst affords 93.4% formate Faradaic efficiency at 300 mA cm -2 , >90% selectivity over 100-500 mA cm -2 , and only 3.2% FE loss in 10 h-outperforming thermal Bi catalysts by ~13.3 points in retention. Operando spectroscopy and simulations show plasma-induced lattice distortions lower the reconstruction barrier, creating electric field-enhanced porous Bi that concentrates K + and stabilizes *OCHO -, promoting formate while suppressing HER. This work establishes a paradigm for metastable electrocatalyst design via coupled non-equilibrium synthesis and electrochemical reconstruction, enabling scalable CO2 conversion at industrially relevant currents.2
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Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 2
·122002
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IF 7.5
Qian Zhang,Shiyun Xu,Qingjun Fan,Jiaojiao Zhang,Xiaofeng Zhou,Tianran Sheng,Fuying Hao,Liangquan Sheng,Zhaodi Liu,Huajie Xu
Lattice strain is commonly acknowledged as an effective strategy for tuning the catalytic activity of transition metals, yet its direct impact on Fenton-like reactions remains not fully understood. Herein, we introduce compressive strain into CoMn 2 O 4 via thermal expansion effects in conjunction with a component regulation strategy to enhance peroxymonosulfate (PMS)-based Fenton-like activation. Structural analysis reveals that the compressively strained features enhance metal-oxygen bond coupling and induces the formation of a substantial amount of oxygen vacancies, which promote PMS adsorption and interfacial charge transfer. The obtained CoMn 2 O 4 (2:1)/PMS system demonstrates efficient and stable removal of organic pollutants via dominant nonradical pathways ( 1 O 2 ), and the reaction kinetics was enhanced from 0.078 min −1 to 0.264 min −1 , and the removal rate for sulfadiazine (SD) was as high as 99.8% within 30 min after five cycles. Furthermore, the remarkable feasibility of the CoMn 2 O 4 (2:1)/PMS system for practical wastewater treatment in real river water and pharmaceutical effluents was demonstrated, particularly through the development of a catalytic membrane filtration system and an in-situ floating water treatment device. This study offers new insights into the design of high-performance PMS activation catalysts via lattice strain engineering.
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ACS Biomaterials Science & Engineering
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2026
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IF 6
Rou Li,Chaochen Wang,Yong Xie,Weitong Gao,Yanning Guo,Yingjie Yu,Sai Luo,Ye Li,Xinyao Chen,Cong Cao,Wei Ji,Chunyu Li,Baohua Xu,Qing Cai,Jing Li
Bone defect repair remains a major clinical challenge, and effective alternatives to autologous bone grafting are urgently needed due to limitations such as donor site scarcity, immune complications, and high long-term resorption rates. In this study, we developed a near-infrared (NIR)-responsive composite scaffold for the controlled and sustained delivery of corynoline (Cor) and extracellular vesicles (EVs) to enhance bone regeneration. The scaffold was constructed from β-tricalcium phosphate (β-TCP) and coated with bioinspired polydopamine (PDA), which enabled efficient immobilization of Cor and EVs via surface adsorption. The PDA layer endowed the scaffold with photothermal properties, allowing NIR irradiation to trigger and accelerate the release of bioactive factors in a sustained manner for at least 14 days. Cor promoted macrophage polarization from the pro-inflammatory M1 phenotype toward the anti-inflammatory M2 phenotype, thereby reducing excessive reactive oxygen species, while EVs derived from osteogenically induced umbilical cord mesenchymal stem cells enhanced angiogenesis and osteogenesis. The photothermal effect of PDA further synergized with these biofactors to modulate the local microenvironment. Under NIR stimulation, the composite scaffold effectively regulated the immune microenvironment and promoted vascularized bone regeneration. In vivo results demonstrated significantly enhanced new bone formation, accompanied by reduced inflammation, increased endogenous cell recruitment, and accelerated vascularization. Overall, this multifunctional, NIR-responsive scaffold provides a promising strategy for efficient and controlled bone defect repair.
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PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
·
IF 6.7
Qiaoling Shen,Caiqing Song,Meirou Jing,Linghui Hao,Lijie Sun,Lijun Bian
To address the low conductivity and poor cycling stability of V 6 O 13 for supercapacitors, Ni 2+ , Co 2+ , and Mn 2+ -doped V 6 O 13 (denoted as XVO, where X = Ni, Co, and Mn) nanomaterials were synthesized using a one-step solvothermal method. A systematic comparative investigation revealed a counterintuitive yet insightful finding: Mn doping induces the largest lattice expansion; however, MnVO delivers the poorest electrochemical performance, whereas CoVO with only moderate lattice expansion achieves the best performance. Through comprehensive characterization, we demonstrated that Co 2+ uniquely balances three critical functions: optimizing lattice expansion, maximizing V 4+ /oxygen vacancy concentration, and directing the formation of highly dispersed nanobelts, creating a triple synergy that neither Ni 2+ nor Mn 2+ can replicate. Consequently, the CoVO electrode exhibited exceptional cycling stability with 93.1% capacity retention after 10000 cycles at 100 A∙g −1 , along with a high specific capacitance (753.7 F∙g −1 at 1 A∙g −1 ). Furthermore, an assembled CoVO//CoVO symmetric supercapacitor operated stably at 0–1.6 V, achieving a maximum energy density of 91.1 Wh∙kg −1 at 400 W∙kg −1 and retaining 42.2 Wh∙kg −1 at 8000 W∙kg −1 . This study identifies Co 2+ as the optimal dopant for V 6 O 13 -based electrodes and establishes that optimal performance requires a multi-scale synergistic optimization of the structure, electronics, and morphology, rather than the sole pursuit of maximum interlayer spacing.
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ADVANCED MATERIALS
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2026
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IF 29.1
Dan Wang,Chongbo Liu,Hualong Peng,Ruizhe Hu,Qi Zheng,Haoran Huang,Fang Zhao,Yuhui Peng,Maosheng Cao
Electromagnetic wave absorption (EMWA) materials with tunable responses are critically important for operation in complex electromagnetic environments. In this study, a novel dual-ion co-modulation strategy is introduced to overcome the limited controllability of conventional EMWA materials. By employing a coordination-mediated gelation phase transformation approach, a series of transition metal sulfide/sulfur–nitrogen co-doped carbon (M x S y /SNC, M = Fe, Co, Ni, or Cu) aerogels are successfully fabricated. First-principles calculations demonstrate that N,S co-doping tunes the electronic structure of the carbon matrix, enhancing local charge imbalance and promoting dipole polarization, which significantly broadens the EMWA band. At 1.65 mm, the effective absorption bandwidth almost covers the entire Ku band. Furthermore, cation-induced modulation of the electronic configuration enables precise tuning of the built-in electric field and dielectric response, resulting in customizable absorption peaks and bandwidths. All samples achieve a minimum reflection loss ( RL min ) below −60 dB, with the RL min peak frequency shifting from 17.44 GHz to 11.6, 9.84, and 5.12 GHz depending on the metal ion. Finally, a low-frequency antenna and a one-to-two power divider are constructed, demonstrating strong application potential in the communications field. This study provides a new pathway for designing high-performance, programmable EMWA systems and multifunctional materials.
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ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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2026
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IF 6.6
Wei Dai,Tao Guo,Chunxia Liu,Kai Sun,Daoyue Xie,Youbin Si
Endocrine-disrupting estrogens, such as 17 β -estradiol (E2) and bisphenol A (BPA), are commonly found in agroecosystems, posing substantial risks to crop productivity and public health. While laccase-induced polymerization transfer is an effective strategy for estrogen remediation, the interactive effects of living crop root-released exudates ( e.g. , sugars, phenolic acids, amino acids) on this enzymatic process remain largely unclear. Here, we employed artificial root exudates (AREs) containing environmentally relevant concentrations of key components to systematically dissect the regulatory roles of distinct root-exuded fractions in laccase-induced estrogen conversion. Compared to the ARE-deficient group, phenolic and amino acids in AREs collectively suppressed laccase-induced estrogen self-polymerization. Notably, phenolic acids exerted a distinct, complementary effect by mediating radical-controlled C−C and C−O−C co-polymerization between estrogen molecules and ARE components, resulting in robust precipitation of co-polymeric products. These precipitation co-polymers were assembled from moieties containing phenolic −OH, −COOH, and aryl functional moieties, exhibiting high structural complexity, morphological diversity, and dense packing that endow them with unique physicochemical properties. Furthermore, we selected maize ( Zea mays L.) as a model crop and experimentally demonstrated that laccase reduced the estrogen pollution risks in maize seedlings by catalyzing rapid pollutant polymerization in the rhizosphere solution, effectively blocking root uptake and subsequent translocation to above-ground shoot tissues. Relative to the laccase-free group, laccase treatment significantly reduced E2 levels in maize roots and shoots by 59.26% and 54.78%, respectively, following 5-day exposure to 20 μmol·L⁻¹ E2. These findings offer a robust enzyme-induced polymerization way for mitigating estrogen pollution in agroecosystems, with critical implications for ensuring crop safety and agricultural sustainability.
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COMPOSITES SCIENCE AND TECHNOLOGY
·
2026
·
IF 9.9
Haiyang Peng,Ying Zhang,Tao Ma,Yixing Huang,Xiao Kang,Ying Li
A 2D/1D/0D carbon-magnetic heterostructure was constructed after pyrolysis. • GC/Co@CNTs-800 delivered an EAB of 6.04 GHz at 2.00 mm. • Multiscale heterointerfaces enhanced electromagnetic attenuation. Metal-organic framework (MOF)-derived electromagnetic wave absorbing materials have attracted considerable interest because of their tunable composition, rich porosity, and structural versatility. However, conventional single-MOF-derived materials often have limited metallic components and structures with a single dimensionality, which hinder the simultaneous optimization of electromagnetic wave absorption performance. In this work, a ZIF-L@ZIF-67 precursor with a MOF-on-MOF architecture was designed. Through high-temperature pyrolysis, it was converted into graphitized carbon/Co nanoparticles@carbon nanotubes (GC/Co@CNTs) composites composed of two-dimensional graphitized carbon, one-dimensional carbon nanotubes, and zero-dimensional Co nanoparticles. By tuning the pyrolysis temperature, the magnetodielectric response response of the materials was effectively regulated. The optimized GC/Co@CNTs-800 exhibited a minimum reflection loss (RL min ) of −69.4 dB at 1.85 mm and an effective absorption bandwidth (EAB) of 6.04 GHz at 2.00 mm. During pyrolysis, the in-situ formation of a conductive carbon network, magnetic Co nanoparticles, and abundant heterogeneous interfaces synergistically promoted conduction loss, magnetic loss, and interfacial polarization. As a result, the electromagnetic attenuation capability of the composites was significantly improved. This study highlights the considerable promise of MOF-on-MOF-derived architectures for electromagnetic wave absorption and offers a viable structural engineering strategy for the development of next-generation microwave absorbers. Download: Download high-res image (412KB) Download: Download full-size image
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Journal of Bioresources and Bioproducts
·
2026
·
IF 19.9
Limin Zhou,Mengmeng Fan,Yanyan Liu,Shuling Liu,Guozheng Dong,Ao Wang,Jong-Min Lee,Kang Sun,Baojun Li
Single-atom catalysts (SACs) have advantages such as high atom utilization and well-defined active sites, and have been extensively studied in the field of oxygen electrocatalysis. However, current strategies for tuning the M-N 4 configurations predominantly focus on local coordination environments, which still makes it difficult to simultaneously optimize the balance of adsorption energies of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) intermediates. Herein, a Zn volatilization-induced pyrolysis strategy is developed to construct Co-N 4 sites coupled with Co nanoparticles on curved N-doped biomass-derived carbon (Co NPs + SA @NC). The intrinsic curvature and defect-rich structure induce lattice distortion and electronic polarization, significantly enhancing the metal-support interaction (MSI). This curvature-enhanced MSI triggers electronic reconstruction and symmetry breaking of Co-N 4 sites, narrowing the highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) gap and facilitating electron transfer. Meanwhile, the influence of adjacent Co nanoparticles optimizes the electronic structure of Co-N 4 , improving the adsorption-desorption capacity of intermediates in the OER process. Therefore, the half-wave potential required to achieve ORR was 0.87 V, and the overpotential required to reach a current density of 10 mA/cm 2 is only 290 mV. A zinc-air battery (ZAB) based on Co NPs + SA @NC exhibited a high peak power density of 172 mW/cm 2 . This work highlights curvature-mediated MSI as an effective strategy for controlling single-atom configurations and advancing biomass-derived electrocatalysts.
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ELECTROCHIMICA ACTA
·
2026
·
IF 5.8
Yongzhi Zhao,Yunpu Qin,Wenhe Yu,Gengchen Bai,Jianfang Liu,Zehong Yin,Baorui Jia,Xinning Zhang,Xuanhui Qu,Mingli Qin
Trace W incorporation improved the durability of Co–Carbon catalysts. • W–S–C/W–S–O–C interfaces were formed after carbonization. • DFT indicates that WS 2 coupling strengthens C–C bonding in carbon. • Interfacial W species mitigate anodic carbon degradation during OER. Carbon-based catalysts are widely utilized in oxygen reduction reactions (ORR) and hydrogen evolution reactions (HER) owing to their great electrical conductivity and low cost. However, their use as bifunctional electrocatalysts for water electrolysis and metal–air batteries is severely hindered by carbon corrosion under anodic oxygen evolution reaction (OER) conditions. Herein, a carbon-based Co/W–Carbon electrocatalyst was synthesized via dopamine polymerization followed by high-temperature carbonization. The catalyst exhibits an overpotential of 331 mV at 10 mA cm -2 . Moreover, the addition of only a small amount of W significantly extends its stability in alkaline electrolyte by several times. Structural analyses revealed the formation of strongly coupled W–S–C/ W–S–O–C interfacial structures after carbonization. Density functional theory calculations demonstrated that coupling graphene with WS 2 promotes electron redistribution from the π-electron system to the C–C σ-bonding network, resulting in enhanced C–C bonding strength and an increased carbon vacancy formation energy. These findings reveal the dual role of WS 2 as both a catalytic component and a structural stabilizer, providing a new strategy for designing durable carbon-rich electrocatalysts. Download: Download high-res image (276KB) Download: Download full-size image
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ACS Catalysis
·
2026
·Vol. 16
·期 15
·14667-14679
·
IF 13.6
Qi Yuntao,Xue Lei,Zhao Shichao,Deng Tiansheng,Qin Yong,Zhang Bin
The hydrogenation of CO 2 to CO represents a promising synthetic pathway to replace coal gasification and methane reforming. Ru-based catalysts showed high activity in CO 2 hydrogenation but lower CO selectivity due to competing methanation reactions. Here, we reported a surface sulfur (S) decoration strategy to shift the methanation to 99% selectivity for CO on the Ru/TiO 2 catalyst in CO 2 hydrogenation. The optimized 2%Ru/TiO 2 -SO catalyst achieved a CO 2 conversion of 57.9% with 100% CO selectivity at 550 ° C, and it operated stably even in a reaction gas containing an H 2 S impurity. Notably, even after high-temperature oxidation treatment at 800 ° C, the 2%Ru/TiO 2 -SO catalyst still retains high CO selectivity (>98.2%). Structural characterization confirms strong S–Ru interactions between S species and Ru nanoparticles in S-decorated catalysts, with highly dispersed S species bonded to the Ru surface as S 2− , thereby leaving the surface Ru atoms in an electron-deficient state. Mechanistic studies reveal that CO was formed via direct dissociation of CO 2 on this 2%Ru/TiO 2 -SO catalyst. The adsorption strength of CO* species and H 2 activation capacity were significantly suppressed on S-decorated catalysts featuring electron-deficient Ru species, thus inhibiting the deep hydrogenation of CO and enabling exclusive CO generation. The surface S decoration strategy employed here will provide insights and guidance for the design of supported metal catalysts with tunable selectivity in other heterogeneous catalytic hydrogenation reactions, particularly those operating at high temperatures.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Jianan He,Adrian Chun Minh Loy,Jining Guo,Ali Zavabeti,Dingqi Wang,Longbing Qu,Raveen Wijesuriya,Yuezhu Xiao,Jitraporn Vongsvivut,Joshua D. Butson,Qinfen Gu,Gang Kevin Li
Fluoride-free one-step molten-salt synthesis of Co-TiS 2 /Ti 3 C 2 T x heterojunction. • In situ growth of Co-TiS 2 on Ti 3 C 2 T x MXene modulates electronic structure. • Co-TiS 2 /Ti 3 C 2 T x catalyst exhibits enhanced HER and OER performance. • In situ synchrotron FTIR and DFT reveal boosted catalytic mechanisms. Two-dimensional MXenes have emerged as versatile platforms for electrocatalysis due to their tunable surface chemistry and layered structures. However, the intrinsic activity of MXenes is limited by their vulnerability in oxidizing and alkaline environments. Herein, we report a one-step molten-salt topochemical transformation that simultaneously tailors MXene surface terminations and constructs an in situ Co-TiS 2 /MXene heterointerface. This method effectively disperses hexagonal Co-TiS 2 nanoparticles, increases the exposure of active sites, and prevents the oxidation and aggregation of Ti 3 C 2 T x , significantly enhancing the overall water splitting performance. The incorporation of S promotes the transformation of the Ti 3 C 2 T x to the Co-TiS 2 derivative, modulates the electronic structure, and is predicted by DFT calculation to provide more favorable adsorption energies of reaction intermediates. Combined experimental characterization, including X-ray absorption spectroscopy, high-resolution transmission electron microscopy, and in situ synchrotron-based Fourier-transform infrared spectroscopy, together with density functional theory calculations, reveals that the MXene-derived Co-TiS 2 stabilizes the Co atoms, facilitating both hydrogen and oxygen evolution reactions. Consequently, the Co-TiS 2 /Ti 3 C 2 T x (T x = S, Cl, O) catalyst exhibits enhanced bifunctional activity in 1 M KOH, with lower overpotentials and excellent stability than pristine Ti 3 C 2 T x MXene. This study highlights the potential of surface-engineered MXenes and their derivatives for the rational design of highly efficient electrocatalysts and provides insight into the role of surface terminations in tuning structure and catalytic performance.
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Science China-Chemistry
·
2025
·
IF 9.7
Liu Yuansheng,Su Hai,Li Mengjie,Fan Zehui,Ma Lanhua,Chen Qinghao,Liu Hang,Xu Yunhua
Zinc ion batteries are considered one of the most promising next-generation energy storage systems due to their high energy density, excellent safety and low cost. However, dendrite growth and side reactions, including passivation and the hydrogen evolution reaction, significantly reduce cycle life and hinder practical application. In this study, a high donor co-solvent of 1,3-dimethyl-2-imidazolidinone (DMI) is applied in an aqueous electrolyte to enhance the performance of the Zn anode. The DMI co-solvent effectively regulates hydrogen bonds in the aqueous electrolyte, modifies the solvation structure of Zn 2+ , and promotes uniform zinc deposition. As a result, the Zn‖Zn symmetrical cells demonstrate a long cycle life, and the Zn‖Cu cell exhibits a high Coulombic efficiency of 99.3%. Additionally, the full battery with V 2 O 5 · x H 2 O as cathode delivers a high capacity of 170 mAh g -1 and a capacity retention of 73% after 2500 cycles at a current density of 5 A g -1 .
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