ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Fan Li,Shang Sun,Lina Ma,Wenjing Zhang,Min Zhou,Yu Fu,Hengrui Guo,Xueying Su,Jinliang Shi,Hao Luo,Yang Yang
The intrinsically low electrical conductivity of elemental iodine and its slow redox kinetics represent two significant obstacles that hinder the commercialization of aqueous zinc-iodine batteries. These challenges can be addressed by modulating the adsorption-desorption equilibrium of iodide ions in the active material. This study presented a synergistic strategy of “Electronic Modulation” and “Phase Transition Engineering” to optimize the catalytic adsorption-desorption dynamics. A dual-designed Fe ions doped VO 2- x heterostructure anchored on reduced graphene oxide (Fe-VO 2- x /rGO) is demonstrated to synchronously adjust iodine adsorption and boost redox kinetics. The Fe-induced electronic structure modulation elevated the d-band center of vanadium, creating catalytic sites to promote the desorption of iodide ions and facilitate their diffusion. Concurrently, the phase transition from VO 2- x to V 2 O 5- n within the heterostructure establishes a 3D conductive network, synergizing with rGO to ensure rapid ion/electron transport. This “adsorption-catalysis-transport” collaborative mechanism enabled the Fe-VO 2- x /rGO cathode to achieve an ultrahigh capacity retention of 81.48% after 60,000 cycles at 20 A g −1 , surpassing state-of-the-art zinc-iodine systems. The work provides a paradigm for manipulating interfacial dynamics through electronic and crystallographic dual regulation in conversion-type batteries.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-13
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IF 15.7
Liu Shaojia,Deng Jingjing,Zhao Hewei,Wang Tianbai,Lu Junfeng,Ding Baosen,Guo Tianqi,Ritchie Robert O.,Guo Lin
Stiffness-damping balance, high specific mechanical performance, and corrosion resistance are demanded for metals. Here, we developed an enamel-inspired ceramic (EIC) coating strategy involving hydrothermal growth of a tooth enamel-like ZrO₂ nanorods on Zr foil and amorphous ZrO₂ intergranular phase formation via controlled hydrolysis. The EIC coated Zr foil (Zr-EIC) achieved a high viscoelastic figure of merit (4.6 GPa); as well as excellent specific stiffness and hardness owing to the lightweight of ceramics, surpassing the values of Zr and previously reported Zr-based alloys or Zr-based composites. This was due to the vertically oriented stiff nanorods and unique energy dissipation derived from deformation at the crystalline/amorphous interfaces. It demonstrated exceptional NaCl corrosion resistance. This approach showed universality across Ti, Zn, and Cu substrates, enhancing both mechanical properties and corrosion resistance. By constructing an enamel-like hierarchical structure on the metal surface, the strategy overcomes traditional metal limitations without causing an increase in density.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Na Liang,Wei Zhao,Siyi Li,Xiaoxin Li,Zhenrong Liu,Kun Jiang,Shaoping Sun
In this study, an amphiphilic polymer (Bio-HA(TPE-CN)-mPEG) was designed and synthesized, which was fabricated by introducing hydrophobic aggregation-induced emission (AIE) fluorophore, acid-labile imine bond, methoxy poly (ethylene glycol) (mPEG) and tumor targeting ligand biotin to the backbone of hyaluronic acid. The polymer could self-assemble into micelles and solubilize hydrophobic anticancer drugs. In vitro drug release study indicated that the micelles could disassemble rapidly under acidic environment. The involvement of biotin and HA could enhance the cellular uptake of micelles by tumor cells. Modification of micelles by mPEG could minimize non-specific protein adsorption. Fluorescence studies indicated that the micelles exhibited excellent AIE features and emitted intense long-wavelength fluorescence. More excitingly, the micelles were red emissive in the normal physiological environment, but switched to blue fluorescence in the acidic tumor environment, which could be further applied for real-time monitoring and quantification of the drug release. The in vivo antitumor efficacy study demonstrated the superior antitumor activity of the PTX-loaded micelles. The Bio-HA(TPE-CN)-mPEG micelles were promising drug carriers for chemotherapy and bioimaging.
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CHEMICAL ENGINEERING JOURNAL
·
2024
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IF 13.3
Chengyu Duan,Yinglong Lu,Zheshun Ou,Mengdi Sun,Guanghui Luo,Huimin Liu,Ruilin Wang,Yijie Wang,Zhuofeng Hu
The spontaneous oxygen reduction is a potential technology for in-situ H 2 O 2 production, which gets rid of the dependence on electricity and solar energy. Previous some metal–carbon compounds reported are feasible to trigger oxygen reduction. These reports always claim the high H 2 O 2 generation ability of metal–carbon composites, while rarely discuss the contribution of carbon and the carbon–metal junction to the oxygen reduction process. Inspired by the dual active sites, we infer that the role of interfacial carbon in metal–carbon composites is underestimated. By a heat treatment of the co-precipitate of zinc and glucose, the Zn-C junction is constructed in Zn-gc to achieve a spontaneous selective reduction of O 2 to H 2 O 2 . The Zn-C interface edge is active site, where an asymmetric activation is achieved by bonding two O atoms from O 2 to C and Zn, respectively. The Zn traction to one of the O atoms is mainly in xy plane, while the C traction to the other O atom is parallel to z-axis. The yield of H 2 O 2 produced per gram of Zn increases from 27.89 mg to 122.21 mg, an improvement of 4.38 times. And the inertness of Zn and its oxygen-containing compounds towards H 2 O 2 enables Zn-gc/O 2 system to stabilize H 2 O 2 over a long period of time. This work reveals the crucial role of neglected junction interfaces in oxygen reduction reactions in metal–carbon composites.
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INDUSTRIAL CROPS AND PRODUCTS
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2024
·
IF 5.6
Yaozu Mi,Shuo Zhang,Haohao Yan,Genji Yang,Hua Yang,Yang Zhou,Lei Miao,Xinyan Gao,Yaqi Hong,Hailian Zang,Chunyan Li
In this study, we utilized typical Chinese medicine herbal residues (CMHRs)－Scutellaria baicalensis ( Scutellaria baicalensis Georgi) residue (SR), as the raw material and employed Na 2 SiO 3 and Fe 2 (SO 4 ) 3 as modifying agents to fabricate a novel and multifunctional hydrochar (FeSi-SRHC), which was designed for comprehensive removal of typical contaminants such as Cu 2+ , Zn 2+ , tetracycline (TC), and ciprofloxacin (CIP), along with relevant bio-contaminants (resistant bacteria (RBs) and resistance genes (RGs)) present in wastewater. Based on the analysis of adsorption kinetics and Freundlich isotherm, it was found that FeSi-SRHC exhibited physical monolayer adsorption for Cu 2+ /Zn 2+ while mainly chemical multilayer adsorption for TC/CIP in single-contamination system. Furthermore, Langmuir isotherm demonstrated excellent adsorption capacity of FeSi-SRHC towards Cu 2+ /Zn 2+ /TC/CIP with maximum capacities of 255.75, 265.26, 425.53, and 404.86 mg/g, respectively. In the co-contamination system, the presence of Cu 2+ , Zn 2+ , TC, and CIP exhibited varying degrees of inhibitory or promotive effects on the mutual adsorption by FeSi-SRHC. This divergence stemmed from differences in complexation intensities and concentration ratios among diverse co-existing contaminants. Based on XPS and Density Functional Theory (DFT) analyses, the adsorption process for Cu 2+ , Zn 2+ , TC, and CIP by FeSi-SRHC primarily involves pore fill, complexation reactions, ion exchange, hydrogen bonding, π-π stacking interactions, and electrostatic interactions. Bio-contaminant removal experiments revealed that the release of baicalin and wogonoside from FeSi-SRHC disrupts the structure of RBs cells and compromises the integrity of resistance plasmids. The practical application experiment showed that FeSi-SRHC displayed favorable performance for removing heavy metals, antibiotics, and bio-contaminants in actual wastewater. This study presented a “Treating waste with waste” strategy, which provided a method with low carbon, eco-friendly, and inexpensive for CMHRs resources and turning waste into treasure while proposing a idea to address the challenges associated with treating heavy metal, antibiotic, and bio-contaminant contamination in wastewater.
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CARBON
·
2025
·
IF 11.6
Wenhui Tian,Penggang Ren,Xin Hou,Yilan Wang,Shengkui Yuan,Huadong Huang,Yanling Jin
The sluggish ion and electron transport in thick electrodes, coupled with the instability of conventional electrolytes, has severely limited the practical application of zinc-ion hybrid supercapacitors (ZIHCs), especially in extreme environments. In this work, a novel porous MXene/graphene/porous carbon (MGPN) cathode with high mass loading, integrated with a hydrogel electrolyte is developed to achieve outstanding electrochemical performance over a wide working temperature range. This unique architecture and multicomponent endows the MGPN with highly efficient ion and electron transport channels along with abundant active sites, which results in a high areal capacitance of 5.9 F cm −2 under the high mass loading of 20 mg cm −2 at 10 mA cm −2 . Benefiting from the fast ion and electron transport kinetics of MGPN and the high ionic conductivity of the hydrogel electrolyte, the assembled ZIHC possesses an impressive areal capacity of 0.08 mAh cm −2 and a high areal energy density of 67.3 μWh cm −2 at 80 °C. Moreover, the device retains 73.4 % of its room-temperature capacity even at −20 °C, demonstrating remarkable temperature adaptability. This study presents a viable approach for the development of high-performance energy storage systems capable of operating in extreme temperature environments.
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APPLIED RADIATION AND ISOTOPES
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2025
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IF 1.8
Tao Gao,Xiang Gong,Jiali Liu,Sheng Hu,Wei Yu,Yuhong Liu,Jiwei Liang
A method for regulating the rutile and anatase ratio of TiO 2 products by adding tartaric acid is reported. By this method, TiO 2 with a specific anatase/rutile ratio exhibited excellent selective adsorption performance of 68 Ge and 68 Ga. Experiment shows that Tartaric acid assist synthesized TiO 2 enabled strong 68 Ge adsorption but negligible adsorption of 68 Ga. Meanwhile, the TiO 2 adsorption exhibited significant acid resistance, with minimal Ti 4+ leaching. In addition, the 68 Ga elution efficiency and 68 Ge breakthrough of radioactivity experiments demonstrated that synthesized TiO 2 achieved an initial 68 Ga elution efficiency of 75%, which remained about 65% after 200 elution cycles. Furthermore, over the four-month observation period, the 68 Ge breakthrough of the TiO 2 adsorbent did not exhibit a significant increase, remaining below 1×10 -5 . Generally, the synthesized TiO 2 adsorbent exhibits potential as a 68 Ge/ 68 Ga generator column adsorbent with outstanding acid-resistant, radiation-resistant, efficient 68 Ga elution and low 68 Ge breakthrough for long-term.
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APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Jiaming Guo,Shanhao Ze,Junbiao Wu,Zhiguo Zhang,Cong Luo,Fei Li,Fei Liu,Jing Li,Baodan Liu
In this study, we innovatively fabricated 2D IGZO ultrathin films with several nanometers and tunable compositions using a liquid metal alloy printing method. We systematically studied the relationship between the composition of In-Ga-Zn liquid alloys and the composition of 2D IGZO films and clarified the possible doping mechanism. It was found that the surface film composition was primarily governed by the Gibbs free energy generated from oxide formation. Importantly, Zn and Ga possess a strong and similar competitive oxidation behavior in the oxidation process of liquid InZnGa alloy, leading to the segregation of Ga 2 O 3 and ZnO in the oxide skin of InZnGa alloy. In this case, we control the micro doping level of Zn and Ga to realize the composition tailoring of 2D IGZO films. Additionally, this study also reveals that increasing the Zn content in the film reduces the band gap width, increases channel current, and shows a trend where conductivity and carrier mobility increase. In contrast, the increases of Ga content results in an obvious decline of electrical performance for 2D IGZO films. This study demonstrates the superiority of liquid metal printing in the fabrication of two-dimensional materials and optoelectronic devices.
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ANALYTICAL CHEMISTRY
·
2025
·
IF 6.7
Jingyuan Guo,Guo Wang,Yunfan She,Kai Li,Yujia Liu,Zhiyi Sun,Zhengbo Chen
Single-atom nanozymes have made important progress in the field of sensors, but their catalytic performance as natural enzyme substitutes is far from satisfactory. We describe here a FeFe dual single-atom nanozyme (Fe2N6/CN) with a Fe loading of 0.89 wt %, and it shows a synergistic effect and a peroxidase (POD)-like activity. Especially, the Fe2N6/CN nanozyme shows an excellent specific activity (315.4 U μmol–1). The values of catalytic rate constant (kcat) and catalytic efficiency (kcat/Km) for the Fe2N6/CN with 3,3′,5,5′-tetramethylbenzidine (TMB) are 23.8 s–1 and 8.24 × 104 M–1 s–1, respectively, and with H2O2, they are 30.8 s–1 and 0.919 × 103 M–1 s–1, respectively. Density functional theory calculations reveal that Fe2N6/CN possesses excellent POD-like activity. Based on the POD-like activity of Fe2N6/CN, we design a Fe2N6/CN nanozyme chemical tongue for the colorimetric recognition of aromatic amines using three wavelengths as array’s channels. The data interpretation using linear discriminant analysis, clustering heat map, etc., shows excellent clustering separation and classification of aromatic amines. Furthermore, this chemical tongue can simultaneously recognize mixtures of different molar ratios, quantitatively determine different concentrations of individual aromatic amines, and even identify unknown samples. This preparation strategy not only provides a promising pathway for the utilization of nanozymes but also highlights the potential of dual single atoms as an attractive platform for design of sensor arrays.
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INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Zhenyou Li,Shiqi Zhang,Zijian Li,Haodong Tang,Zongjian Liu
Conventional synthesis of stable metal oxide-encapsulated metal particles typically requires two-stage processing: metal particle formation and oxide coating via a sol-gel method. However, this biphasic protocol is often time-consuming and environmentally unfriendly. Herein, a novel, one-step approach that enables concurrent metal particle formation and oxide encapsulation is proposed to synthesize TiO₂-encapsulated Sn-based particles. The proposed method involves ultrasonic emulsification of molten Sn or Sn alloys (e.g. Sn-Zn-Cu) within a LiCl-KCl-CsCl eutectic melt containing TiO₂ nanoparticles, followed by rapid emulsion solidification and salt matrix dissolution in water. Our results demonstrate that Sn-based capsules with diameters ranging from hundreds of nanometers to several micrometers and TiO₂ shell thicknesses typically in the range of 80–120 nm were successfully synthesized via such emulsion-based system, where the capsule size decreases with the concentration of TiO₂ nanoparticles. The as-prepared Sn-2.0Zn-1.5Cu (in wt%) phase change capsules exhibit significantly reduced undercooling (∼7 °C vs. ∼88 °C for Sn capsules of comparable size) and their phase change properties remain stable after 300 thermal cycles, thereby showing great potential for thermal energy storage applications. With short emulsification durations (<10 min) and recyclable chloride salts, this Pickering-type metal-in-salt emulsion methodology might serve as a new pathway for rapid and environmentally friendly synthesis of metal-based micro/submicro-capsules across diverse material systems by varying metal alloy compositions and selecting suitable nanoparticle stabilizers.
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MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Tingting Hu,Haimei Zeng,Hao Peng,Guanchao Yin,Jihong Zhang,Jun Xie,Yang Jiang
With the increasing discharge of pollutants into air, water, and soil, the rapid and sensitive detection and treatment of chemical pollutants, including toxic organic dyes and heavy metal ions, have become critical for minimizing potential threats to the ecological cycle and human health. In the current research, an in-situ degradation approach for toxic substances is proposed, combined with surface-enhanced Raman scattering (SERS). Fiber probes based on a silver nanoparticles/ silver phosphate tetrapod (Ag/ Ag 3 PO 4 ) composite were fabricated using a sequence of ion exchange, chemical reduction, and subsequent coating processes. The fiber probes were deployed for ultra-sensitive SERS detection and in situ photocatalytic degradation of dyes (specifically crystal violet (CV)) and heavy metal ions (particularly Hg 2+ ). The probes were functionalized with 4-mercaptopyridine (4-MPY) to facilitate the detection of Hg 2+ . Notably, the probes demonstrated detection limits as low as 10 −14 M for crystal violet (CV) and 4-aminothiophenol (PATP), and 10 −12 M of Hg 2+ . Under light exposure, the substrate degraded 93.2 % of CV and 98.0 % of PATP within 60 min, and 82.3 % of Hg 2+ within 30 min, as monitored in situs. Finite element method analysis suggested that the high electromagnetic field intensity generated by Ag/ Ag 3 PO 4 resulted from the close packing of Ag nanoparticles. Furthermore, the SERS fiber probes exhibited outstanding stability, selectivity, and reusability. This research suggest that the recyclable Ag/ Ag 3 PO 4 fiber probes hold significant potential for the detection and in situ monitoring of the degradation of trace environmental contaminants.
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POWDER TECHNOLOGY
·
2025
·
IF 4.6
Xiaobo Min,Dezhou Zhang,Yun Li,Xin Wang,Qingyu Huang,Yu Liu,Yunyan Wang,Pingsheng Zeng,Xingwu Lu,Cong Peng,Yong Ke
The inherent susceptibility of zinc vapor Zn (g) to oxidation during conventional pyrometallurgical zinc production fundamentally limits direct metallic zinc recovery. This study developed an innovative multi-field controlling condensation technique to address this challenge through synergistic regulation of atmospheric composition (Zn (g) -CO₂-CO-N₂ system), thermal gradients, and concentration fields in smelting operations. Combining thermodynamic simulations with pilot experiments, the oxidation inhibition mechanisms were systematically elucidated, quantitative relationships between operational parameters and zinc recovery efficiency were established. Thermodynamic analysis revealed that increasing the reaction temperature, elevating CO and zinc vapor concentrations in the gas phase, and reducing H 2 O and SO 2 contents can effectively inhibit zinc vapor oxidation. Experimental validation demonstrated exceptional zinc vapor oxidation inhibition rates of 95.7–99.1 % under optimized conditions: 1050 °C reaction temperature, CO/CO₂ ratios of 3.0–5.0, 0.34 mL/min zinc vapor flux, 610–625 °C condensation temperature, and 60 min retention time without H 2 O and SO 2 . Additionally, this methodology enables precise morphological control of condensed products, achieving tunable zinc crystal structures ranging from dendritic to compact granular morphologies through strategic manipulation of condensation kinetics. This breakthrough establishes a robust technical pathway for sustainable zinc recovery from smelting off-gases while providing fundamental insights into vapor-phase metal purification strategies.
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