CERAMICS INTERNATIONAL
·
2026
·
IF 6
Jun Yu,Xianwei Zhao,Yongjun Chen,Azhu Wang,Pei Li,Yuzhe Wang,Haining Chen,Huicong Liu,Hui Ye,Weiping Li
Ga-doped zinc oxide (GZO) has attracted considerable interest for applications in electronic transport owing to its superior electrical properties. In this study, we report a low-temperature (<100°C) aqueous open-system route for the in-situ synthesis of GZO powders. The efficient substitutional doping of Ga 3+ into the ZnO lattice is achieved via a formation, in-situ transformation and dissolution–reprecipitation pathway of ε-Zn(OH) 2 or ZnGa-layered double hydroxide (ZnGa-LDH) intermediates, which simultaneously endows the products with unique flower-like or bundle-like morphologies. Chemical equilibrium calculations and time-dependent experiments reveal that the ionic species Zn(NH 3 ) 4 2+ and Ga(OH) 4 - , formed in the aqueous solution under high ammonia concentration, serve as reactive monomers that facilitate the formation and transformation of the intermediate phases. Electrical measurements combined with UV-Vis-NIR, EPR, and PL spectroscopic analyses indicate that Ga doping introduces shallow donor-type defects alongside zinc vacancy-related acceptor defects into the ZnO lattice, narrowing the optical bandgap and enhancing the electrical conductivity of the resulting powders. The GZO powder with a nominal doping ratio of 5% exhibits the lowest resistivity (Surface resistivity measured by the four-probe method is 3.43 × 10 4 Ω/□). This work provides a new pathway for the controllable preparation of functional conductive oxide powders.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Bao Zien,Ren Xiaohong,Rong Zeming
The selective upgrading of lignin-derived compounds into
high-value
chemicals remains a critical challenge. In this study, a series of
Ni-based catalysts supported on Hβ zeolite and modified with
secondary metals (Zn, Fe, and Cu) were synthesized and systematically
evaluated for the catalytic conversion of 4-propylguaiacol in aqueous
phase under hydrogen-free conditions. Among the catalysts studied
at 220 ° C for 2 h, Ni/Hβ delivered a conversion of 36.1%
and a phenolic selectivity of 89.6%. By comparison, NiZn/Hβ
exhibited the highest catalytic activity, achieving a conversion of
82.9% with a selectivity of 96.5%, indicating the promotional effect
of Zn incorporation. NiFe/Hβ showed a moderate conversion of
45.5% but maintained a high phenolic selectivity of 97.6%. However,
NiCu/Hβ showed almost no catalytic activity, with a conversion
of only 2.0%. Structural characterization by XRD, XPS, N 2 physisorption, H 2 -TPR, SEM, and TEM revealed that the
introduction of Zn significantly improved the dispersion of Ni species
and reduced Ni crystallite size, thereby increasing the number of
accessible active sites. In contrast, Fe incorporation altered the
catalyst structure and reduced catalytic activity, while Cu addition
induced metal aggregation and markedly suppressed catalytic performance.
The results indicate that appropriate second-metal modification can
effectively regulate the metal dispersion, microstructure, and metal–support
interactions in Ni/Hβ catalysts, thereby influencing the hydrogen
activation ability and the cleavage of Ar–CO 3 bonds.
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高影响因子
Catalysis Science & Technology
·
2026
·
IF 4.2
Kai Li,Yue Tao,Junqi Cai,Yujie Zhang,Yunhe Xing,Jian Ji,Xuming Zhang
The plasma catalytic direct oxidation of methane into the value-added chemical methanol over LaZnAl catalyst was investigated under mild condition. The synergistic effect between plasma and the LaZnAl catalyst was achieved. The electronic interaction of La-Zn facilitated the formation of oxygen vacancies, and promoted the utilization of the plasmaactivated O radicals, and enhanced the formation rate of the key intermediate CH3O species, thereby leading to low apparent activation energies for methane conversion and methanol production. The interaction of La-Zn species resulted in a significantly enhanced contribution of 89.6% to methanol formation, whereas the contribution of Zn alone was only 23.7%, and that of La was even negative (-32.9%). Consequently, methanol production was markedly improved and a methanol selectivity of 40.9% was achieved over the LaZnAl catalyst, compared to 26.7% for ZnAl and 14.5% for LaAl.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Yu Han,Xintao Gao,Jiqing Dong,Mingquan Jiang,Ning Xin,Xiangyan Chen,Zhibo Li,Yantao Li
The clinical translation of mRNA vaccines for cancer immunotherapy critically hinges on the development of mRNA nanocarriers that ensure precise organ targeting, potent immune activation, and high biosafety. Here, we reported the novel supramolecularly engineered mRNA nanocarriers based on Zn 2+ -lipid nanoparticle (LNP) coordinated nanoassemblies (NAs), incorporating imidazole-functionalized ionizable lipids and Zn 2+ ions as structural and immunostimulatory components. Specifically, a library of 32 imidazole-based ionizable lipids was synthesized and screened, identifying BR5–2 LNPs as a lead candidate for efficient mRNA transfection. By leveraging the coordination interaction between Zn 2+ and the components of BR5–2 LNPs, we successfully constructed Zn-BR5–2 NAs, which exhibited enhanced in vitro mRNA transfection efficiency and promoted dendritic cell maturation via upregulation of major histocompatibility complex class I (MHC-I) antigen presentation. In vivo , Zn-BR5–2 NA-based vaccines achieved 82% spleen-specific mRNA expression and induced a strong antigen-specific CD8 + T cell response (23.09%). Notably, in a B16-OVA mouse melanoma model, Zn-BR5–2 encapsulating ovalbumin mRNA (Zn-BR5–2/mOVA) elicited potent prophylactic and therapeutic antitumor effects. This work underscores the potential of metal-LNP coordination chemistry in advancing next-generation mRNA vaccines with organ-specific delivery and heightened immunotherapeutic efficacy.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 8.3
Minghua He,Tingting Zhou,Wenbing Meng,Linrui Zhang
The design and development of cost-effective and highly efficient bifunctional oxygen electrocatalysts hold great significance in the study of metal-air batteries. Herein, the present study describes a facile and scalable strategy for the synthesis of a complex comprising nanorod-like MnO 2 -V O integrated with MWCNTs. For electrochemical performance, MnO 2 -V O /MWCNTs exhibit excellent oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) catalytic activities, demonstrating a half-wave potential ( E 1/2 ) of 0.79 V for ORR and a potential of 1.62 V at 10 mA cm −2 for OER, with a low bifunctional potential difference ( ΔE OER-ORR , between the ORR half-wave potential and the OER potential at 10 mA cm −2 ) of 0.83 V, which are comparable to those of Pt/C and RuO 2 . This excellent catalytic performance can be attributed to the rational design of the MnO 2 -V O components and the unique interwoven network of the MnO 2 -V O /MWCNTs complexes. In addition, the electrocatalytic action and stability improvement mechanisms were also systematically analyzed based on microstructural characterization and electrochemical response. Finally, a zinc-air battery (ZAB) was fabricated by employing the as-synthesized MnO 2 -V O /MWCNTs as the cathode catalyst. The MnO 2 -V O /MWCNTs-based ZAB demonstrates an open-circuit voltage of 1.48 V, a power density of 71.17 mW cm −2 , and superior charge-discharge cycling stability with a voltage gap of only 0.77 V after 100 cycles, which are comparable to those of the commercial Pt/C + RuO 2 -based ZAB (1.39 V, 74.84 mW cm −2 , and 0.87 V gap). This study provides a simple, inexpensive and accessible synthetic method for the design of high-performance non-precious metal-based ORR/OER bifunctional electrocatalysts.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Xiaoli He,Song Huang,Yueliang Chen,Jiaming Xiong,Huatai Liang,Zuyang Hu,Minghui Ye,Yufei Zhang,Zhipeng Wen,Yongchao Tang,Qi Liu,Jian Zhu,Cheng Chao Li
Electrolytic zinc–manganese batteries (ZMBs) featuring high energy density and low cost hold significant potential for large-scale energy storage. However, their development is hindered by severe zinc corrosion and poor reversibility of the Mn2+/MnO2 conversion, originating from drastic pH fluctuations and an acidic environment. Herein, we propose an organic/inorganic self-stratifying electrolyte, which synergizes with the self-sacrificial sustained-release Zn(BF4)2 to regulate the zinc interface and MnO2 conversion chemistry. The design innovatively utilizes the in situ hydrolysis of BF4– to create an HF/F– buffer and free F– ions. The former stabilizes cathode pH and promotes uniform deposition and deep conversion of MnO2. Additionally, the released F– fosters a robust ZnF2-rich SEI on the zinc anode in a water-lean environment (organic phase), effectively suppressing corrosion and side reactions. Therefore, the zinc-symmetric battery with an organic phase exhibited a lifespan of over 650 h, exceeding conventional aqueous electrolytes by 38-fold. The Zn–MnO2 batteries deliver exceptional stability for 1800 cycles at 2C with an average Coulombic efficiency of 98.7%. This biphasic buffering-interface regulation strategy provides a generalizable approach to decouple interfacial challenges, which is promising for extension to other corrosion cell systems.
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PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2026
·
IF 7.9
Jiahao Ma,Mengsheng Xia,Jiwei Chen,Yixi Su,Chao Wang,Wenbo Shi,Weizhao Meng,Enhui Liu,Weiqi Fu
The development of marine antifouling coatings that are both highly effective and environmentally sustainable presents a persistent challenge, impeding their widespread commercial application. To address this challenge, we developed sustained-release composite coatings by incorporating Zn (II)-Ln (III) bimetallic metal-organic frameworks (MOFs) into a polyurethane (PU) matrix. Four MOF variants (i.e., H₂FDA@Gd, H₂FDA@Ce, H₂OBA@Gd, and H₂OBA@Ce) were solvothermally synthesized using antifouling ligands (H₂FDA/H₂OBA) with Zn 2+ /Gd 3+ /Ce 3+ nodes, which were used as a filler for polyurethane resin, featuring bcu-topology frameworks and bidentate bridging coordination. These MOFs, which are composed of antifoulants, can degrade gradually in seawater. Therefore, the coatings demonstrated multifunctional antifouling performance, achieving 86% - 92.5% adhesion reduction against E. coli and S. aureus , as well as 75.5% against P. tricornutum , in addition to sustained lanthanide ion release and enhanced corrosion resistance. MOFs extend the path of the corrosive medium, exhibiting excellent anti-corrosion performance of the composite coatings. Field testing confirmed near-complete resistance to SRB corrosion and a maximum reduction in corrosion area of 76.28%. This work establishes an eco-friendly strategy through controlled MOF degradation that concurrently releases bioactive ligands and metal ions, enabling long-term marine protection with minimal environmental impact.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Shuo Li,Jing Zhu,Longkun Wu,Yasong Han,Ningning Zhao,Bin Li,Shaaban M. Shaaban,Lei Dai,Ling Wang,Zhangxing He
Introduced Co 2+ increases the structural stability of δ-MnO 2 and enlarges the interlayer spacing, promoting ion diffusion. • δ-MnO 2 @Co/TCT further improves the electrical conductivity, ameliorates the agglomeration problem and increases the electrochemical reaction active area. • Synergistic improvement of electrochemical performance through the strategy of ion doping and introduction of conductive materials, Zn//δ-MnO 2 @Co/TCT full cell with 1000 stable cycles at 1.5 A g -1 . δ-MnO 2 is considered a highly promising cathode material for aqueous zinc-ion batteries (AZIBs). However, its practical application is hindered by two critical issues: delayed transport kinetics and insufficient structural stability. Therefore, a synergistic strategy involving Co 2+ doping and composite coating with Ti 3 C 2 T x MXene (TCT) nanosheets was designed and implemented to achieve effective doping of the δ-MnO 2 lattice with Co and to ensure uniform loading of the active component onto the TCT substrate surface, ultimately leading to the successful fabrication of the δ-MnO 2 @Co/TCT composite material. First, the incorporation of Co 2+ as interlayer pillars effectively widens the interlayer spacing of δ-MnO 2 , thereby enhancing its structural stability and enabling faster ion embedding/de-embedding. Second, the TCT conductive substrate effectively mitigates the agglomeration of δ-MnO₂@Co, significantly increasing the electrochemical reaction area. Benefiting from the unique composite structure design, the Zn//δ-MnO 2 @Co/TCT full cell exhibits significantly optimized electrochemical performance. The assembled cell delivers a high specific capacity of 239.5 mAh g −1 at 0.5 A g −1 , and maintains outstanding cycling stability over 1000 cycles at 1.5 A g −1 . Result indicates that comprehensive performance of cathode materials can be effectively enhanced by multilevel structural synergistic design, providing a feasible technological pathway for development of high-performance AZIBs.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Feiyang Yan,Huan Liu,Jing Wan,Xueping Sun,Jiahuan Luo,Yan Wang,Shixiong Sun,Junwei Lang
Sodium metal batteries (SMBs) are regarded as promising candidates for next-generation energy storage technologies due to their high energy density and low cost yet remain challenging owing to dendritic sodium deposition, unstable electrode–electrolyte interfaces, and sluggish ion transport, particularly under fast-charging conditions or at low operating temperatures. To address these challenges, in this study, we introduce Sn-Zn atomic configured porous, nitrogen-rich carbon-based meta-material (SA-NCS), derived from a guanine-based hydrogen-bonded organic framework (HOF), serving as sodium host material for SMBs, which provides a high density of atomic sodiophilic sites to promote the transition from one-dimensional dendritic deposition to two-dimensional planar-oriented dense plating, and features programmable nano-to-macro functional structures capable of effectively accommodating the anodic volume fluctuation induced by sodium plating and stripping. SA-NCS@Cu current collector exhibits an ultralow nucleation overpotential of 22 mV even at a high current density of 20 mA cm −2 and delivers exceptional cycling stability, enabling stable operation for 2000 h at 10 mA cm −2 with Coulombic efficiencies exceeding 99.9%. Moreover, the SA-NCS @Cu current collector based anode-less sodium metal batteries demonstrate a superior fast-charging capability and long-term cycling stability at −20°C. This study presents a practical design for sodium hosts, enabling high-performance SMBs.
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高影响因子
ACS Omega
·
2026
·
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
BIORESOURCE TECHNOLOGY
·
2026
·
IF 8.2
Zuhang Jin,Yiwei Zhao,Cheng Tao,Rui Du,Yongzheng Shi,Chao Zhang
PdZn/Mo-Al 2 O 3 -C effectively catalyzed hydrodeoxygenation (HDO) of fatty acid esters to alkanes. • Coexistence of Pd and Zn enhanced the dispersion of active sites and regulates the distribution of acid sites. • ZnO x and MoO x species adjacent to Pd suppressed the decarboxylation side reaction. • 92% octadecane selectivity was achieved in methyl stearate HDO. The conversion of fatty acid esters to alkanes with high carbon chain number by hydrodeoxygenation (HDO) is of great significance in biomass conversion to fuels and chemicals. A PdZn/Mo-Al 2 O 3 -C catalyst was prepared for the preparation of octadecane from methyl stearate HDO. The coexistence of Pd and Zn on Mo-based catalysts greatly promoted the dispersion of active sites on the catalyst surface, which also effectively regulated the distribution of acid sites on the catalyst surface. The Zn modified Pd catalyst also effectively adsorbed the C O/C–O bond of the substrate to facilitate the cleavage of C–O bonds, as well as suppressing the decarboxylation side reaction, and achieving octadecane selectivity of 92%. The optimized catalyst also displayed high HDO selectivity for converting the fatty acid esters (C 8 ∼ C 18 ) to alkanes. Download: Download high-res image (166KB) Download: Download full-size image
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Xiaoying Li,Futang Ren,Lei Jiang,Chaohe Zheng,Qiaoji Zheng,Heng Zhang,Xin Tan,Dunmin Lin
Precise regulation of the zinc electrodeposition process is essential for advancing aqueous zinc-ion batteries with durable cycling performance, as it directly governs dendrite formation. In this work, the conventional strategy focused solely on ion transport regulation is moved beyond, demonstrating that ninhydrin hydrate (Nhh) acts as a “molecular programming agent” to simultaneously regulate the crystallographic orientation and deposition kinetics of zinc ion. Experimental and theoretical studies reveal that the polar hydroxyl and carbonyl groups in Nhh selectively anchor onto the Zn (101) plane via multi-site coordination, which guides lateral atomic stacking along the (101) plane and thereby effectively suppresses vertical dendrite propagation. Moreover, Nhh modulates via coordination effectually regulate the solvation structure of Zn 2+ , significantly lowering the desolvation energy barrier, promoting faster desolvation kinetics, and improving ion transport across the interface. As a result, the Zn||Zn symmetric cell exhibits outstanding cycling life performance, sustaining stability for over 4600 h at 2 mA cm −2 and 2 mAh cm −2 , and remains stable for up to 1600 h under 10 mA cm −2 and 10 mAh cm −2 . Furthermore, the Zn//V 6 O 13 ·nH 2 O full cell maintains 95.4% of its initial capacity after 1000 cycles. This work presents a strategy for the kinetic and morphological regulation of metal electrodeposition via rational molecular design, providing guidance for the development of highly stable metal anodes.
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高影响因子
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