INORGANIC CHEMISTRY
·
2026
·
IF 4.6
Kaitong Liu,Yuan Rao,Zhaoxue Li,Shihang Zhou,Zhi-Zhong Zhang,Yanhui Zhang
The edge-sharing connection mode of [BO4] tetrahedra has greatly enriched the structural chemistry of borates, which provides more options and possibilities for designing more materials with unique structures and excellent performance. A zinc borate Ba5Zn4(B3O6)2(B12O24) (BaZnBO) was synthesized via a high-temperature solid reaction. Its uniqueness lies in not only introducing Zn into the structure of β-BaB2O4 but also containing the unusual edge-sharing [BO4] tetrahedra. The functional building units are isolated [B3O6] and [B12O24] groups. The adjacent [B3O6] groups are linked to a layer in the ab plane and further stack along the [001] direction, while the [B12O24] groups are located in the middle of these layers, thus forming the “sandwich” structure. This work also analyzed the impact of introducing Zn into β-BaB2O4 on the structure of anions. In addition, BaZnBO also exhibits good thermal stability and excellent optical properties including the short cut-off edge (204 nm) and suitable birefringence (0.058@1064 nm).
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Hao Zeng,Xiangbing Zou,Shuo Yang,Sizhe Tang,Shanshan Luo,Meiyue Cheng,Haiping Xu,Yujie Song,Ming Liu,Yang Liu,Ming Yang,Bing Li
Functionalized cobalt phthalocyanine (CoPc) supported on carbon supports are promising electrocatalyst for the electrochemical reduction of carbon dioxide (eCO 2 RR), yet the role of functional groups on catalytic activity is pending for clarification and optimization to maximize the reaction kinetics. Herein, a series of eCO 2 RR catalysts are fabricated by affixing functionalized molecular catalysts onto the nitrogen-doped porous carbon (NPC), denoted as CoPc-4x@NPC (x = H, NH 2 and NO 2 ). Among them, CoTNPc@NPC exhibits exceptional eCO 2 RR performance: in an H-type cell, it achieves a current density of 45 mA cm −2 at −0.91 V vs. RHE with CO Faradaic efficiency (FE CO ) exceeding 93.5% over a wide potential range, long-term stability over 40 h, and a remarkable turnover frequency (TOF) of 23.49 s −1 . In a flow cell configuration, the CO partial current density ( J CO ) further increases to 224.1 mA cm −2 at −0.91 V. Density functional theory (DFT) calculations reveal that the nitro group upshifts the d -band center, enhances Co center electrophilicity, pre-donates electrons for *COOH formation, and underlies the higher turnover frequency. Integrating CoTNPc@NPC into a Zn-CO 2 battery delivers a maximum discharge power density of 3.86 mW cm −2 and stable operation for over 15 h. This work highlights the potential of molecularly engineered CoPc catalysts for eCO 2 RR and Zn-CO 2 battery applications, providing new insights for the rational design of high-performance electrocatalysts.
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高影响因子
Small
·
2026
·
IF 12.1
Jia Liang,Ye Zeng,Hai Huang,Dingrong Deng,Guifang Li,Xiaohong Fan,Mingming Tao,Binbin Wei,Zhengbing Qi,Hanfeng Liang,Qihui Wu
Surface reconstruction of electrocatalysts induces structural evolution, which critically creates favorable conditions for in situ directional modulation of electrocatalytic species and thus enhances the catalytic activity. The development of CoMoO 4 -based electrocatalysts for hydrogen evolution reaction (HER) is hindered by insufficient active sites and sluggish reaction kinetics of reconstructed cobalt species. Herein, we rationally designed a CoMoO 4 pre-catalyst loaded on ZnO nanorods, where synergistic structural evolution between ZnO and CoMoO 4 is achieved: continuous ZnO dissolution couples with CoMoO 4 structural evolution, driving Zn incorporation into in-situ generated Co(OH) 2 species. The reconstructed electrocatalyst with Zn-doped Co(OH) 2 as catalytic species can exhibit a low HER overpotential of 40 mV at 10 mA cm − 2 , and maintain an overpotential of 65 mV at 10 mA cm − 2 in simulative seawater electrolyte. Meanwhile, the anion exchange membrane (AEM) electrolyzer with the reconstructed ZnO@CoMoO 4 electrode can exhibit excellent durability, maintaining electrocatalytic performance for 650 h (water electrolysis) and 1000 h (seawater electrolysis). Density functional theoretical (DFT) calculations demonstrate that the Zn dopants in the reconstructed species effectively enhance the HER energetics and mitigate Cl − -induced corrosion during the seawater electrolysis. This work provides fresh insights into the enhancement of the HER activity of reconstructed electrocatalysts based on the structural co-evolution mechanism.
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高影响因子
CERAMICS INTERNATIONAL
·
2024
·Vol. 50
·期 24
·52228-52239
·
IF 5.1
Dongjiang Wu,Weijie Lv,Zheng Li,Xuexin Yu,Cong Zhou,Bi Zhang,Wei Wang,Huanyue Zhang,Guangyi Ma,Fangyong Niu
High-entropy oxides (HEOs) have attracted extensive research interest due to their unique structural features, customizable elemental compositions, and tunable functional properties. Nevertheless, the complexity, low efficiency, and high cost of the existing HEO synthesis methods place limitations on them. In this study, Laser directed energy deposition (LDED) was employed to synthesize (Mg, Co, Ni, Cu, Zn)O oxides. Additionally, the novelty of applying the LDED process to multicationic systems was emphasized. The comparison between specimens fabricated from mixed powder via LDED(MP) and those fabricated from pre-sintered powder via LDED(SP) encompasses macroscopic morphology, microstructure, and performance. The results showed that SP significantly enhanced the density from 86.44 % to 96.70 % compared to MP. The macro-segregation of Cu and Cu 2 O in the phase composition was observed in MP and SP. High-temperature pre-sintering promoted the solid solution formation of Co and Ni during LDED, leading to more severe micro-segregation of Co and Ni. When employed as anodes in lithium-ion batteries, MP and SP have outstanding long-term cycle stability, according to electrochemical performance studies. At a current density of 100 mAg −1 , these specimens maintained a capacity retention rate of 100 % even after 200 cycles. The initial discharge capacities of MP and SP were respectively 477.73 mAh g −1 and 373.86 mAh g −1 . This study is expected to present a novel approach for the rapid synthesis of (Mg, Co, Ni, Cu, Zn)O oxide ceramics .
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Small
·
2018
·Vol. 14
·期 51
·1803978
·
IF 9.598
Donghong Wang,Hongfei Li,Zhuoxin Liu,Zijie Tang,Guojin Liang,Funian Mo,Qi Yang,Longtao Ma,Chunyi Zhi
There is a growing demand for flexible and wearable energy devices. How to enhance their tolerance to various mechanical stresses is a key issue. Bending, stretching, or twisting of flexible batteries has been widely researched. However, shear force is inevitably applied on the batteries during stretching, bending, and twisting. Unfortunately, thus far, research on analyzing shear resistance of solid batteries or even enhancing the shear tolerance has never been reported. Herein, a sewable Zn–MnO 2 battery based on a nanofibrillated cellulose (NFC)/ployacrylamide (PAM) hydrogel, electrodeposited Zn nanoplates anode, and carbon nanotube (CNT)/α-MnO 2 cathode is reported. The designed NFC/PAM hydrogel exhibits a relatively high mechanical strength with a large stretchability; the preformed NFC bone network stabilizes the large pores as channels for electrolyte diffusion. Furthermore, the effect of sewing on enhancing the shear resistance of the solid batteries is analyzed. The sewed Zn–MnO 2 battery retains 88.5% of its capacity after 120 stitches, and withstands a large shear force of 43 N. The sewable and safe Zn–MnO 2 is also able to be designed into a skirt and put on a toy as an energy source to power a red light emitting diode.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Huicai Xie,Quanyi Liu,Xiaohua Luo,Shengcan Ma,Xinqiang Gao,Zhenxing Li,Zhaojun Mo,Jun Shen
For more practical applications, research on magnetic refrigeration has been gradually focused on developing refrigerants with large magnetocaloric effect (MCE) under low magnetic fields (≤2 T). EuTiO 3 exhibits considerable low-field MCE near ordering temperature, meanwhile the magnetic switch from antiferromagnetic to ferromagnetic (AFM-FM) in it provides the feasibility of improving the magnetocaloric performance. In this study, a series of Eu(Ti,Nb,M)O 3 (M=Cu or Zn) compounds were synthesized, and the crystal structure, magnetic properties together with cryogenic MCEs were investigated in detail. The co-substitution contributes to an FM coupling domination in all the compounds. Besides, significantly enhanced and giant low-field MCEs were detected in these compounds. Under the field change of 1 T, all the samples possess remarkable magnetic entropy change (>15 J·kg -1 ·K -1 ) around 5 K without hysteresis. The corresponding refrigerating capacities are calculated to be 68.0, 72.6, 76.0, and 69.6 J·kg -1 , respectively, exhibiting an increase of 149–178% than EuTiO 3 . The outstanding magnetocaloric performances make the Eu(Ti,Nb,M)O 3 (M=Cu or Zn) compounds competitive candidates for cryogenic magnetic refrigeration.
研究领域:
材料科学
·
凝聚态物理
·
功能材料
·
低温工程
·
磁学
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JOURNAL OF THE CHINESE CHEMICAL SOCIETY
·
2017
·Vol. 64
·期 4
·412-419
·
IF 0.935
Xiu-Yan Dong,Sunday Folaranmi Akogun,Wei-Min Zhou,Wen-Kui Dong
A new tetranuclear Zn(II) complex, [{Zn(L)(μ-OAc)Zn(H 2 O)} 2 ], based on an asymmetrical salamo-type bisoxime chelating ligand H 3 L (6-hydroxy-4′-chloro-2,2′-[ethylenediyldioxybis(nitrilomethylidyne)]diphenol) was synthesized and characterized by elemental analyses, differential thermal methods, single-crystal X-ray crystallography, and IR, UV–vis, and fluorescence spectra. The Zn(II) complex crystallizes in the triclinic system, space group P -1 with cell parameters a = 9.0742(6) Å, b = 11.8225(5) Å, c = 12.4182(8) Å, Z = 2, V = 1212.56(12) Å 3 , R 1 = 0.0572, and wR 2 = 0.1734. The environment of the tetranuclear Zn(II) complex is penta-coordinated having a slightly distorted trigonal bipyramidal geometry. Moreover, a 1D chain supramolecular structure is formed along the c -axis by the intermolecular C1–H1B⋯O14 hydrogen bonds; in the same manner, C2–H2C⋯Cg2 functions in the formation of supramolecular structures along the a -axis of the 1D chain. A 2D supramolecular structure along the ac plane extends infinitely under the force of intermolecular hydrogen bonds. Differential scanning calorimetry-thermogravimetry thermal analysis provides evidence of the coordination of Zn(II) atoms to the ligand H 3 L. The Zn(II) complex shows intense photoluminescence with a maximum emission at ~453 nm upon excitation at 360 nm.
研究领域:
无机化学
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配位化学
·
超分子化学
·
材料化学
·
分析化学
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物理化学
·
晶体学
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2016
·
IF 4.758
Juan Hou,Tianyu Zhou,Long Wang,Ping Zhang,Lan Ding
In this work, Zn(OH) 2 nanosheets embedded with carbon dots (CDs) were prepared through a template-free microwave-assisted route for the first time. The preparative strategy was facile, green and cost-effective. The final composites possessed uniform size distribution, good fluorescence property, excellent stability and fast adsorption ability for metal ions. A novel and ultrasensitive fluorescent assay has been proposed using CDs/Zn(OH) 2 composites as amplifying fluorescent sensors for rapid detection of Cu 2+ and Hg 2+ in real water samples. Aided by a Cu 2+ /Hg 2+ chelating agent, exclusive detection could be expected without cross-reactivity, as well as reversible and reproduced analysis. The detection limits were 0.3 nM for Cu 2+ and 0.2 nM for Hg 2+ , respectively. This assay could effectively enrich/separate and detect Hg 2+ and Cu 2+ simultaneously, revealing remarkable advantages including operational simplicity, high sensitivity, low cost and acceptable reproducibility.
研究领域:
材料科学
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分析化学
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环境科学
·
纳米技术
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高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 8.2
Heng Jiang,Jiahao Wang,Siyu Gui,Sensen Niu,Guangzheng Lin,Hui Yuan,Yongqi Wu,Chuhan Zhou,Jingjing Tang,Qiao Mei,Lianbang Zhou
Gastric cancer (GC) remains one of the leading causes of cancer-related mortality worldwide, presenting significant therapeutic challenges due to its late-stage diagnosis and high metastatic potential. Imbalance in reactive oxygen species (ROS) homeostasis is crucial for the onset, development, and malignant transformation of GC. To address the demand for innovative therapeutic approaches, this study introduces a novel nanocoordination polymer, Zn-Quer nanozymes (NZs), synthesized from quercetin (Quer) and zinc ions. These nanoparticles utilize quercetin’s anti-inflammatory and antioxidant properties, improving its bioavailability and therapeutic effectiveness via a nanoparticle delivery system. Zn-Quer NZs were synthesized via coordination chemistry and characterized by using TEM, XRD, and FTIR to confirm their structural integrity and composition. In vitro studies on GC cell lines and in vivo xenograft model experiments demonstrate that Zn-Quer NZs effectively inhibit cell proliferation, induce apoptosis, and reprogram malignant phenotypes such as epithelial-mesenchymal transition (EMT) and angiogenesis, as indicated by changes in the expression of related markers. Moreover, Zn-Quer NZs significantly reduce the overall intracellular ROS levels in epithelial cells under oxidative stress by modulating multiple steps of ROS generation. These findings underscore Zn-Quer NZs as a promising therapeutic strategy for gastric cancer, capable of rebalancing ROS and effectively reversing malignant phenotypic transformation.
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高影响因子
ENERGY & FUELS
·
2026
·
IF 6
Kang Xu,Dingbang Niu,Li Deng,Xu Zhang,Juan Yang,Pengjun Ma,Yi Zhang,Bo Shi,Bingjun Yang
3D-printed flexible zinc-ion hybrid microsupercapacitors (ZHMSCs) show immense promise as emerging energy storage units for flexible microelectronic systems, delivering intrinsic safety, high theoretical capacity, and designable architectures. However, the low intrinsic conductivity of electrode materials and the significant interfacial contact resistance hinder the development of all-printed devices with superior areal capacitance and power density. In this study, a hierarchical conductive optimization strategy is proposed to construct a high-performance flexible ZHMSC via a fully 3D-printing process. At the microscale, highly conductive PEDOT:PSS (PH1000) is introduced as an intercalation agent into the Ti3C2 MXene cathode, effectively suppressing the restacking of MXene layers and constructing efficient ion transport channels. At the macro scale, the interface contact resistance is effectively reduced by in situ printing of the silver current collector. The device exhibits excellent electrochemical performance enabled by a directly printable, high-mass-loading zinc-based composite anode and a water-retentive ZnSO4/hyaluronic acid gel electrolyte. The fabricated flexible ZHMSC delivers a remarkable areal capacitance of 1199.5 mF cm–2 and an energy density of 326.5 μWh cm–2. Moreover, the device demonstrates excellent cycling stability with 82% retention of the initial capacitance after 9000 cycles. This work confirms the effectiveness of a hierarchical conductive network design in enhancing all-printed energy storage and provides an efficient, scalable manufacturing paradigm for the next generation of integrated flexible micropower systems.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Yifei Liu,Defa Liu,Ying Yu,Zumin Wang,Ruziev Umidjon Abdimajitovich,Donaev Sardor Burkhanovich,Semencha Alexander Vyacheslavovich,Lei Wang,Lingbo Zong,Bin Li,Xufang Qian
Fe-Cu dual-atom sites were prepared through pre-coordination and ultrafast Joule heating. • FeCu-N-MCS displays a large E 1/2 , low H 2 O 2 yield and excellent stability. • FeCu-N-MCS suppresses H 2 O 2 accumulation through hydrogen peroxide reduction reaction (HPRR). • Cooperative interaction of dual-atom sites reduces the energy barrier of OH* desorption for 4e⁻ ORR. • Zn-air batteries achieve ultrahigh power density and remarkable charge/discharge stability. The oxygen reduction reaction (ORR) governs the power output and cycling lifetime of metal-air batteries. Fe-N-C single-atom catalysts are among the most promising precious-metal-free ORR electrocatalysts, but their durability is often compromised by H 2 O 2 generated through the competing two-electron ORR pathway, which can trigger Fenton reactions and radical-induced catalyst degradation. Herein, Fe-Cu dual-atom sites anchored on microporous carbon spheres (FeCu-N-MCS) are constructed through a pre-coordination strategy followed by rapid Joule heating. Combined experimental results and density functional theory (DFT) calculations reveal that the electronic coupling between Fe and Cu sites lowers the energy barrier of the rate-determining step for the four-electron ORR pathway. More importantly, the Fe-Cu dual-site configuration enables spontaneous hydrogen peroxide reduction reaction (HPRR) at Fe sites and significantly facilitates OH* desorption during HPRR, thereby suppressing H 2 O 2 accumulation and alleviating Fenton-type oxidative degradation. Consequently, FeCu-N-MCS delivers outstanding ORR performance with a half-wave potential of 0.91 V, a low H 2 O 2 yield below 2.91%, and 91.05% current retention after 100 h. Aqueous Zn-air batteries (A-ZABs) assembled with FeCu-N-MCS achieve a peak power density of 223.73 mW cm −2 and stable cycling for over 1200 h. FeCu-N-MCS-based Quasi-solid-state ZABs (QSS-ZABs) further exhibit an open-circuit voltage (OCV) of 1.52 V and a power density of 246.85 mW cm −2 . This work establishes a dual-atom-site strategy for coupling high ORR activity with H 2 O 2 -resistant durability, offering mechanistic insight into the design of robust precious-metal-free electrocatalysts for advanced metal-air batteries. Download: Download high-res image (220KB) Download: Download full-size image Fe-Cu dual-atom sites were prepared through pre-coordination and Joule heating. The incorporation of Cu sites into Fe-N-MCS not only reduces the energy barrier of the rate-determining step (RDS) to accelerate the 4e⁻ ORR pathway, but also enables spontaneous hydrogen peroxide reduction reaction (HPRR) to suppress H 2 O 2 accumulation and Fenton corrosion. Consequently, the assembled Zn-air batteries achieve remarkable power density and ultra-long cycling stability.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Aleeza Javeed,Zohaib Ur Rehman,Zhengguo Chen,Jiang Youqi,Siqi Fu,Peng Ranran,Yunan Jiang,Xuexin Jiang,Changrong Xia
Zn-containing borosilicate glass-ceramic sealant is developed for LT-SOFCs. • ZnO enables a low softening temperature (~600 °C) and controlled crystallization. • Small additions of Ni-Co spinel oxide effectively strengthens the seal. • Ultra-low leakage rate of 0.0023 sccm cm −1 is maintained for 1350 h at 700 °C. • Strong interfacial bonding and minimal elemental interdiffusion ensure durability. SOFCs are attractive energy conversion devices due to high efficiency and fuel flexibility, but commercialization is limited by sealing reliability. Glass sealants must provide gas tightness, thermal expansion compatibility, mechanical robustness, and chemical stability at reduced operating temperatures. This study develops a Zn-containing borosilicate glass-ceramic modified with Ni-Co spinel for reduced-temperature planar SOFCs. ZnO lowers the softening temperature (~600 °C) and controls crystallization while maintaining CTE compatibility. The optimized seal shows hermeticity with leakage of ~0.005 sccm cm −1 over ten thermal cycles. Incorporation of 1 wt% Ni-Co improves stability, reducing leakage to 0.0023 sccm cm −1 over 1350 h at 700 °C. Thermal analysis shows Ni-Co affects intrinsic thermal properties but moderates glass fluidity, suppressing excessive flow. Microstructural and interfacial analyses confirm adhesion to YSZ and NiCo 2 O 4 -coated stainless-steel, with limited interdiffusion and no harmful reaction layers. Overall, the Zn-containing Ni-Co-modified glass-ceramic is a durable sealing solution for reduced-temperature SOFC applications. Download: Download high-res image (257KB) Download: Download full-size image
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