Advanced Composites and Hybrid Materials
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2026
·Vol. 9
·期 4
·340
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IF 15.5
Wang Yanrong,Chen Qiuling
The strategic integration of metal-organic frameworks (MOFs) with MXenes presents a promising avenue to overcome charge separation bottlenecks in photocatalysis. This study constructs a hierarchical S-scheme heterojunction by in-situ growing ultrafine Zinc–Tetrakis(4-carboxyphenyl) porphyrin (Cobalt-incorporated) Zn-TCPP(Co) MOF nanoparticles (15 nm) on two-dimensional functionalized MXene nanosheets. This unique “particle-on-lamella” architecture is engineered with molecular bridges, establishing a chemically bonded interface via C–Ti–O and N–Ti bonds that facilitate rapid charge transfer. The optimized heterostructure exhibits a narrow bandgap of 1.95 eV, a significantly prolonged charge carrier lifetime of 35.5 ns, and a high photocurrent density of 1.7 µA cm − 2 . By leveraging synergistic S-scheme charge separation, MXene’s metallic conductivity, and molecular single-atom Co sites, the composite achieves an exceptional hydrogen evolution rate of 24.3 mmol g − 1 h − 1 with an apparent quantum efficiency of 10.2% at 420 nm—representing a sixfold enhancement over pristine Zn-TCPP(Co). This performance surpasses many recently reported MOF- and MXene-based photocatalysts. Combined density functional theory calculations and experimental analyses confirm the critical role of the internal electric field in driving the S-scheme mechanism, which effectively preserves strong redox potentials. This work provides a definitive blueprint for high-performance photocatalytic systems through molecular-level interfacial engineering.
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Journal of the Iranian Chemical Society
·
2026
·Vol. 23
·期 8
·258
·
IF 2.4
Yu Haiyan,Zhang Li,Jia Yongpeng,Tian Ye
Two coordination polymers, CP1 and CP2, based on Cu(II) and Zn(II) ions, were synthesized and structurally characterized as fluorescent sensors for 1,10-phenanthroline, an important nitrogen-containing chelating agent widely used in coordination chemistry and industrial systems. Both materials exhibit good crystallinity, thermal stability, and intrinsic fluorescence. Their fluorescence sensing behaviors toward 1,10-phenanthroline were systematically investigated in aqueous media. CP1 and CP2 show high selectivity and sensitivity toward 1,10-phenanthroline, with Stern–Volmer constants of 1.11 × 10⁵ M⁻¹ and 6.95 × 10⁴ M⁻¹, and detection limits of 3.2 µM and 4.5 µM, respectively. In addition, both coordination polymers display good anti-interference ability and recyclability. Comparative studies reveal that the different sensing efficiencies of CP1 and CP2 are closely related to the distinct electronic properties of the Cu(II) and Zn(II) centers. Mechanistic investigations indicate that the fluorescence quenching mainly arises from coordination interactions between 1,10-phenanthroline and the metal centers. This work not only demonstrates the potential of coordination polymers as effective fluorescent sensors for phenanthroline detection, but also provides insight into the role of metal centers in regulating fluorescence sensing performance.
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CERAMICS INTERNATIONAL
·
2026
·
IF 6
Longgong Xia,Zhiqian Yu,Feng He,Yiwang Zhang,Huilan Yang,Kai Ma
(Fe/Zn/Ni)O·(Fe/Al) 2 O 3 spinels are widely used as raw materials for advanced ceramics and refractories and occur as precipitates in slag phases during nonferrous metal pyrometallurgy. The stability and phase-transformation mechanisms of these spinels are important for optimizing material performance and controlling metallurgical processes. The decomposition of Fe 3 O 4 , FeAl 2 O 4 , ZnFe 2 O 4 , ZnAl 2 O 4 , NiFe 2 O 4 , and NiAl 2 O 4 under various atmospheres was experimentally investigated, and phase evolution during reduction was elucidated. Thermogravimetric and differential thermal analyses and reduction experiments showed that Fe(II)-bearing spinels tended to decompose at elevated temperatures in air. ZnFe 2 O 4 and ZnAl 2 O 4 were stable at temperatures up to 1500 °C in air and in an atmosphere with p O2 = 10 −6 atm. At low oxygen partial pressure, aluminate spinels exhibited greater stability. The reduction kinetics of these spinels were also analyzed. The reduction of Fe 3 O 4 , ZnFe 2 O 4 , NiFe 2 O 4 , and NiAl 2 O 4 was described by the Avrami-Erofeev model, indicating that the reduction process was controlled by the nucleation rate. The reduction of ZnAl 2 O 4 was described by a diffusion model.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.6
Yuezhu Wang,Cheng Fan,Zhengjie Chen,Mengxiao Zhong,Xiaofeng Lu
Although replacing the oxygen evolution reaction (OER) with hydrazine oxidation reaction (HzOR) represents a promising strategy for low-voltage hydrogen (H 2 ) production, bifunctional electrocatalysts capable of operating at industrially relevant currents (≥1000 mA cm −2 ) for both HzOR and hydrogen evolution reaction (HER) remain elusive. This work reports RuWO x nanofibers (NFs) as an all-in-one catalyst that bridges this gap, delivering high activity for both cathodic and anodic half-reactions. With the optimized Ru 1 W 1 O x -450 NFs, the working potential of HzOR is just 58 mV vs. RHE to deliver 1000 mA cm −2 , while the HER counterpart requires only 185 mV to reach the same current density, both markedly outperforming Pt/C benchmark. This bifunctional catalyst sustains HzOR operation for 500 h without notable decay under industrial-grade current densities. When integrated into a two-electrode overall hydrazine splitting (OHzS) electrolyzer, the energy input for H 2 production drops to 0.134 kWh m −3 H 2 at 100 mA cm −2 , an order of magnitude lower than that of conventional water splitting (OWS) (1.85 kWh m −3 H 2 ). Density functional theory (DFT) calculations reveal an efficient electron transfer from RuO 2 to WO 3 at their interface in RuWO x NFs, which regulates the d -band center, modulates the adsorption and desorption for intermediates, and simultaneously reduces the energy barriers for HER and HzOR. This study presents an effective strategy for creating efficient and robust bifunctional electrocatalysts, paving the way toward energy-efficient H 2 production. Download: Download high-res image (102KB) Download: Download full-size image
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JOURNAL OF POWER SOURCES
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2026
·
IF 8.4
Ying Li,Fangyuan Qiu,Wanyou Huang,Xuesong Tian,Limei Wang,Ruixia Chu,Hang Li,Yibo Gao
Developing low-cost, high-performing non-noble-metal catalysts for the oxygen reduction reaction (ORR) to replace Pt-based catalysts for practical metal-air batteries remains an enormous challenge. Herein, Co 3 O 4 /α-MnO 2 /C composite catalysts with different mass ratios are synthesized, and a heterostructured Co 3 O 4 /α-MnO 2 /C catalyst is successfully constructed. Benefiting from the synergistic interaction between Co 3 O 4 and α-MnO 2 , together with the enhanced conductivity imparted by the carbon support, the catalyst exhibits outstanding electrocatalytic activity. Furthermore, derivative analysis of the LSV curves is employed to accurately determine the ORR onset potential and half-wave potential, providing a quantitative approach for evaluating the electrochemical activity of the Co 3 O 4 /α-MnO 2 /C catalyst. Furthermore, a Zn-air battery driven by the Co 3 O 4 /α-MnO 2 /C catalyst shows excellent electrochemical performance, delivering a high open-circuit voltage of 1.458 V and long-term cycling stability for 300 h. Notably, its overall performance is close to that of commercial Pt/C catalysts. This work highlights the considerable promise of non-noble-metal catalysts for renewable energy storage and conversion applications.
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ADVANCED MATERIALS
·
2026
·
IF 29.1
Zhihao Sun,Lin Liu,Junwei Zhang,Yuhang Liu,Yifeng Wang,Ying Wan,Fanxing Bu,Bao Zhang,Wanhai Zhou,Dongyuan Zhao,Dongliang Chao
Unlike neutral aqueous batteries with cationic Zn 2+ as the charge carrier, alkaline batteries with anionic [Zn(OH) 4 ] 2‒ and OH ‒ are actually commercially feasible and thermodynamically stable thanks to their ability to suppress hydrogen evolution. Whereas commercial separators in alkaline batteries, without ion regulation capability, fail to suppress severe dendrite and passivation of anionic [Zn(OH) 4 ] 2‒ and accelerate ion transport of anionic OH ‒ . Herein, we tailor the coordination structures of alkali-stable cationic complexes in polymer separators (CCPS) to construct anionic OH ‒ selective transfer channels. Synchrotron spectroscopic characterizations and theoretical calculations reveal that the low-coordination cationic complexes expose more positive charge density, electrostatically attracting more negative charge from [Zn(OH) 4 ] 2‒ . In situ electrochemical digital holography technology and time-of-flight secondary ion mass spectrometry analyses further confirm the homogeneous [Zn(OH) 4 ] 2‒ distribution at the CCPS-electrode interface, oriented Zn deposition, and impeded passivation. As a result, CCPS enables alkaline Zn||Cu cells to operate over 5500 cycles at 1 mA cm ‒2 with a high coulombic efficiency of 99.99%. Alkaline Ni–Zn batteries exhibit ultrastable cycling over 1000 cycles at 6 C and maintain 86.17% of their maximum capacity at 10 C. Our work may provide practical and effective separator strategies to accelerate the commercialization of alkaline batteries.
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INORGANIC CHEMISTRY
·
2026
·
IF 4.6
Ronghan Jiang,Tiancun Liu,Yaling Ji,Xueqin Zhang,Song Lu,Anyi Lyu,Xusheng Wang,Jiaqi Fan,Min Guo,Jiadi Ying,Qi Shen,Yeqing Wang,Yong Wang,Zhixin Yu
Aqueous zinc-ion batteries (AZIBs) face challenges such as dendrite growth and byproduct accumulation in practical applications. Herein, an innovative strategy of alkali corrosion is utilized to tune crystal facets of a Zn electrode, selectively weakening the active (101) plane and highlighting the (002) plane. Furthermore, a protective interface composed of coordination polymers and inorganic zinc compounds has been synchronously fabricated, exhibiting remarkable mechanical robustness. The engineered multifunctional protective layer (MPL) also possesses abundant zincophilic sites that can significantly promote the uniform Zn ion distribution on the interface and demonstrates remarkable efficacy in improving corrosion resistance, inhibiting dendrite formation, promoting uniform zinc deposition, and significantly enhancing the cycling performance of AZIBs. Therefore, the symmetric cell with Zn@MPL exhibits superior cycling stability over 5000 h at 0.5 mA cm–2 and excellent rate performance at 10 mA cm–2. When cycled for 2300 cycles, a full cell using Zn@MPL and MnO2 can still deliver a capacity retention rate of 51.4% at 5 A g–1, which is 24 times longer than the cycling lifespan of the bare Zn-based cell decaying to the same capacity. The successful preparation and application of a unique MPL provide some new insights for exploring safe and stable AZIBs.
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PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2026
·Vol. 50
·期 13
·5530-5540
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IF 2.6
Qianhao Zhao,Yaping Wang,Yongyuan Yang,Longhui Nie,Naixin Kang
A high adsorption capacity and excellent recyclability are the most critical factors for large-scale application of adsorbents. In this work, a regenerable Zn-UiO-66 was synthesized by doping Zn into UiO-66. The resulting adsorbent exhibited a high adsorption performance for TCH with a qmax of 178.9 mg g−1 at 30 °C and maintained stable adsorption performance across a broad pH range (3–11). The adsorption kinetics and thermodynamics of TCH, together with the zeta potential of the adsorbent under different pH conditions, further confirm the underlying adsorption mechanism, which is proceeded via monolayer chemisorption, primarily governed by π–π conjugation, π–cation interactions, coordination interactions and hydrogen bonding. The adsorbent also performed well in real water matrices. Importantly, Zn-UiO-66 exhibits good water stability and excellent recyclability, with only a slight decrease in adsorption capacity after five cycles using simple water rinsing, underscoring its strong potential for efficient antibiotic removal.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Shuo You,Cong Chen,Zhihe Wei,Qiang Wang,Wen Dong,Mingrong Shen,Ronglei Fan
Transition metal borides (TMBs) are considered promising electrocatalysts for alkaline hydrogen evolution reaction (HER), but their potential has not been effectively utilized due to their inherent activity and challenges in fine morphology regulation during chemical/electrochemical deposition processes. Here, we prepared Zn incorporated NiB catalyst (NZB) on nickel foam by a simple one-step chemical deposition combined with local dealloying method. It was revealed that Zn incorporation plays a multifunctional role in the activity and stability of NZB catalysts towards alkaline HER. The partial leaching of Zn regulated the microstructure of the NZB, while residual Zn optimized the electronic structure of the NZB catalyst, improving the interaction between the catalyst and HER intermediates, thereby simultaneously increasing the number of active sites and intrinsic activity. Furthermore, we found the introduction of Zn accelerated the completion of surface reconstruction and improved the crystallinity of catalysts, resulting in enhanced chemical and mechanical stability. These findings provide key insights into maximizing the potential of transition metal-based catalysts for HER.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
·
2024
·Vol. 35
·期 1
·1-10
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IF 4.2
Yuan Xinyuan,Wu Tingting,Lu Teliang,Ye Jiandong
Both silicon (Si) and zinc (Zn) ions are essential elements to bone health and their mechanisms for promoting osteogenesis have aroused the extensive attention of researchers. Thereinto, the mechanism by which dual ions promote osteogenic differentiation remains to be elucidated. Herein, the effects of Si and Zn ions on the cytological behaviors of mBMSCs were firstly studied. Then, the molecular mechanism of Si-Zn dual ions regulating the osteogenic differentiation of mBMSCs was investigated via transcriptome sequencing technology. In the single-ion system, Si ion at the concentration of 1.5 mM (Si-1.5) had better comprehensive effects of cell proliferation, ALP activity and osteogenesis-related gene expression levels (ALP, Runx2, OCN, Col-I and BSP); Zn ion at the concentration of 50 μM (Zn-50) demonstrated better combining effects of cell proliferation, ALP activity and same osteogenic genes expression levels. In the dual-ion system, the Si (1.5 mM)-Zn (50 μM) group (Si1.5-Zn50) synthetically enhanced ALP activity and osteogenesis genes compared with single-ion groups. Analysis of the transcriptome sequencing results showed that Si ion had a certain effect on promoting the osteogenic differentiation of mBMSCs; Zn ion had a stronger effect of contributing to a better osteogenic differentiation of mBMSCs than that of Si ion; the Si-Zn dual ions had a synergistic enhancement on conducting to the osteogenic differentiation of mBMSCs compared to single ion (Si or Zn). This study offers a blueprint for exploring the regulation mechanism of osteogenic differentiation by dual ions. Graphical Abstract
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PubMed
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Carbohydrate Polymer Technologies and Applications
·
2025
·
IF 6.5
Yu Yao,Yuchen Lin,Hongwei Xi,Ruhao Han,Liangjie Tian,Yusheng Yang,Chonghe Cui,Yuhui Chen,Huimin Zhang,Ruixiong Chen,Wangan Li,Qingrong Lin,Rong Zeng,Yanjun Hu
s Currently, large segmental bone defects due to accidents, osteomyelitis debridement surgery, and other conditions, the treatments remain difficult. Large segmental bone defects are characterized by long treatment times, poor prognoses, and infectious complications. Although metal ions play crucial roles in directing bone tissue engineering, limited research has concentrated on ion-doped bacterial cellulose’s immunomodulatory properties. Therefore, we developed a mineralized bacterial cellulose (ZnCu-CaP-BC) biomaterial loaded with zinc and copper ions to enhance the bone immune environment and improve bone regeneration, as well as achieve anti-infection effects. The successful preparation of a mineralized bacterial cellulose biomaterial doped with Zn/Cu ions was confirmed by material characterization and biocompatibility experiments. Moreover, in vitro experiments demonstrated that the developed biomaterial has strong antimicrobial properties and can stimulate macrophages to improve the bone immune microenvironment by both reprogramming macrophages from the M1 to M2 phenotype and increasing the expression of alkaline phosphatase (ALP) and osteoclastogenic protein (OCN). The study performed in vivo experiments to further validate the bone-enhancing and antimicrobial properties of this biomaterial by using a rat femoral condylar defect and subcutaneous infection model. Overall, owing to the excellent antimicrobial, immunomodulatory, and bone-enhancing effects of ZnCu-CaP-BC, this material has great potential in the future.
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JOURNAL OF LUMINESCENCE
·
2025
·
IF 3.6
Yikun He,Yongheng Fu,Danni Yan,Shuai Yang,Li Zhang,Jiajun Xu,Feifan Song,Xiaokun Zhang,Yuhui Dong,Yousheng Zou
In recent years, Ag-In-Ga-S (AIGS) quantum dots (QDs) have received widespread attention as non-toxic and environmentally friendly QDs. However, the low photoluminescence quantum yield (PLQY) restricts the further application of AIGS QDs in optoelectronic devices. Here, we constructed quinary Ag-In-Zn-Ga-S (AIZGS) QDs with outstandingly high PLQY of 92.1% by doping Zn into AIGS QDs via an economical and environment-friendly hydrothermal method. The synergistic action of the internal doped Zn providing radiative recombination channels and the surface doped Zn passivating the non-radiative recombination defects leads to enhanced PLQY of QDs. The corresponding QDs backlight films fabricated based on AIZGS QDs and polyvinyl alcohol (PVA) also show a high PLQY of 82.7%. The improved PLQY of AIZGS QDs is comparable to other toxic metal-containing QDs in the same spectrum. Furthermore, the PL peak wavelength of the QDs can be tuned from 545 nm to 616 nm by varying the Ag/In ratio. The realization of high PLQY in aqueous AIZGS QDs and its backlight films contributes to the application in the field of eco-friendly backlight display devices.
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