CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xiaohong Sun,Jinhui Zhang,Xueyan Li,Qinglu Peng,Xuliang Yang,Qingju Liu,Longzhou Zhang
The inherent trade-off between mechanical robustness and ionic transport efficiency in gel electrolytes has posed a long-standing challenge for advancing solid-state zinc-air batteries. Conventional approaches struggle to reconcile micron-scale pores (essential for mechanical reinforcement) with macroporous networks (critical for rapid ion migration). In this study, a novel strategy was employed to introduce micropores onto the skeleton of a macroporous gel. The X-ray tomography reveals this secondary structure for the first time. The zinc-air battery assembled by this gel exhibit the high ion conductivity of 205 mS cm −1 and undertake a stress of 984 Kpa. Additionally, the lifetimes of button cell and flexible Zinc-air battery reach 120 h and 97 h respectively.
✓ 已验证
产品关联
DOI
高影响因子
RARE METALS
·
2025
·
IF 11
Zhu Jing,Wu Longkun,Peng Zhi,Li Shuo,Li Xudong,Zhang Zekun,Zhao Ningning,Li Bin,Meng Wei,Wang Ling,Dai Lei,He Zhangxing
Aqueous zinc ion batteries (AZIBs) have attracted widespread attention due to their unique advantages. However, the growth of dendrites on the anode and the occurrence of side reactions limits the improvement of electrochemical performance of AZIBs. The alloying of zinc anode effectively alleviates above problems, which is beneficial to the long-term cycle performance of AZIBs. In this study, zinc-copper alloy anode (Cu@Zn) was synthesized by melting method. The method is not only simple and easy to operate, but also can make the synthesized anode Cu element uniform distribution and improve the corrosion resistance of the anode. At the same time, the Cu@Zn surface reconstructed has a large proportion of Zn (002) crystal surface exposure, with the zinc affinity of Cu. Both of them can induce the uniform deposition of Zn 2+ ions along the Zn (002) crystal plane, further inhibiting the growth of dendrite. The Cu@Zn//Cu@Zn symmetrical batteries can cycle more than 1000 times at current densities of 0.3 and 1.2 mA cm −2 , and maintain a relatively low hysteresis voltage. And the discharge capacity retention rate of Cu@Zn//MnO 2 maintains 84.64% at 2.0 A g −1 after 1000 cycles. This study provides a new methodological reference for the development of advanced AZIBs anodes. Graphical abstract
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Li Yin,Baixue Xing,Ziyuan Liu,Lihua Lu
Herein, a novel ternary-atomic Fe/Zn/Ir nanozyme (Fe/Zn/Ir TAzyme) with peroxidase (POD)-like and luminescence properties is fabricated through coordinating Ir(III) complex into the as-prepared Fe/ZIF-8. The preparation procedures avoid high-temperature and pyrolysis which endue Fe/Zn/Ir nanocomposite with high stability and can be scaled up. Once Fe/Zn/Ir TAzyme catalyzes the substrate TMB to produce blue oxidized TMB (oxTMB), its luminescence is quenched by the generated oxTMB. Ascribed to its high POD-like activity and interesting luminescence property, a dual-mode sensing platform for the detection of melatonin (MT) is fabricated. In the presence of increasing concentrations of MT, the absorbance of the detection system declines, while the emission of the detection system grows. The detection platform exhibits the limits of detection (LODs) in colorimetric and luminescence detections are 8.9 nM and 8.8 nM, respectively, which can mutually validate the assay results. More importantly, Fe/Zn/Ir TAzyme has been fabricated into test swabs to monitor MT in the way of portable and naked-eye detection. This double-role TAzyme provides new conceptions for researchers to explore novel and highly efficient nanozymes in future.
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·Vol. 52
·期 1
·114-121
·
IF 5.6
Shixian Xie,Pengbo Fu,Lichen Wang,Huayang Gong,Fang Wang,Fenghua Chen,Zhigang Sun,Jiaguo Fan,Yan Zhang,Jian Zhang,Baogen Shen
M-type strontium ferrite (SrFe 12 O 19 ) is widely used in various fields due to its low cost and excellent stability. However, its relatively low saturation magnetization ( M s ) significantly restricts its broader applications. Enhancing M s through non-rare-earth doping via the solid-state reaction method is of significant practical importance. The primary challenge lies in simultaneously maintaining lattice stability and regulating Fe 3+ spin alignment through doping. In this study, a series of non-rare-earth Nb–Zn co-doped SrFe 12- x (Nb a Zn b ) x O 19 ( a : b = 1:1, a : b = 4:5, x = 0.1–0.5) were synthesized using the solid-state reaction method. XRD phase analysis indicated that a single M-type strontium ferrite phase was obtained at the stoichiometric doped ( a:b = 1:1). In contrast, for the non-stoichiometric doped ( a:b = 4:5), a trace amount of the secondary phase SrNb 0.5 Fe 0.5 O 3 was detected in Nb–Zn doped samples with x ≥ 0.2. M s of both stoichiometric and non-stoichiometric doped samples increased within the range of 0≤ x ≤ 0.3 but gradually decreased when x exceeded 0.3. Notably, for the composition with a : b = 4:5, M s reached a maximum value of 79.33 emu/g at x = 0.3, accompanied by a synchronous enhancement of 18.5 % in coercivity ( H c ). Raman spectroscopy analysis revealed the enhancement mechanism of M s : the synergistic occupation of Nb 5+ and Zn 2+ ions. Specifically, Zn 2+ preferentially occupies the 4f 1 tetrahedral sites, while Nb 5+ incorporates into the 4f 2 sites. This co-substitution effectively replaces the spin-down Fe 3+ ions, leading to a significant increase in M s . The presence of a trace amount of the secondary phase SrNb 0.5 Fe 0.5 O 3 in the non-stoichiometrically doped samples, effectively inhibited grain growth, thereby contributing to the enhancement of H c . This study successfully synthesized non-rare-earth-doped strontium ferrite materials via a solid-state reaction method, achieving a significant enhancement in M s . Furthermore, the underlying mechanism for the improvement in M s through Nb–Zn co-doping was elucidated for the first time. Our findings are of significance for the development of high-performance, cost-effective ferrite materials.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 33
·2132
·
IF 2.8
Xiao Hongbo,Feng Chaochao,Chen Yangdie,Lin Zhenqin
Traditional ZnO-based microwave absorbers and monometallic ZIF systems suffer from narrow effective absorption bandwidths due to impedance mismatch and insufficient magnetic-dielectric synergy. To address these limitations, this study proposes a self-sacrificial template strategy for constructing Zn/Co bimetallic zeolitic imidazolate frameworks (ZIFs) using spherical ZnO as a dynamic coordination host. Unlike conventional hard-template routes, the self-sacrificial templating strategy allows atomic-level control over morphology and composition via in-situ dissolution–recrystallization, leading to hierarchical architectures with rich heterointerfaces. By tuning the Co 2+ content (0.1–0.3 g) and pyrolysis temperature (700–900 °C), the resulting carbon-based composites exhibit precisely regulated microstructures and balanced electromagnetic properties. The structural evolution and composition were systematically investigated using X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM/HRTEM), X-ray Photoelectron Spectroscopy (XPS), and Vibrating Sample Magnetometry (VSM). The optimized derivative pyrolyzed at 800 ℃ (PSE3-2–800) exhibited exceptional microwave absorption performance, achieving a minimum reflection loss (RL min ) of − 51.24 dB at 4.2 mm thickness and an ultra-wide effective absorption bandwidth (EAB) of 7.36 GHz (10.64–18.00 GHz) at 2.3 mm. Structural and compositional analyses revealed that the hollow architecture formed via ZnO carbothermal reduction, coupled with graphitized carbon matrices embedded with Co 3 ZnC nanoparticles and atomic Co-Nx sites, synergistically enhanced dielectric polarization, magnetic resonance, and multi-path scattering. This work provides a paradigm for designing lightweight broadband absorbers through defect engineering and bimetallic coordination, overcoming the limitations of single-component systems in balancing impedance matching and multi-loss mechanisms.
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Yanrui Wang,Ting Yu,Qing Xue,Le Chen,Yue Chen,Zhonghua Sun,Junfeng Qian,Chang Guo,Vladimir Yu. Guskov,Zhi-Hui Zhang
In this study, a Zn-based MOF was synthesized via a solvothermal method, and a series of AG/Zn-MOF-X composite aerogels were subsequently engineered through the controlled incorporation of agar. Comprehensive evaluation revealed that the AG/Zn-MOF-0.8 composite achieved remarkable removal efficiencies of 65, 61, and 100% for Cr2O72–, CrO42–, and MnO4–, respectively, outperforming pristine Zn-MOF by 14, 3, and 1%. An analysis of the kinetics and isotherms provided insights into the adsorption mechanisms. Notably, under photocatalytic conditions, the composite exhibited superior degradation with removal rates of 79, 86, and 100% for the respective oxyanions. These findings highlight that tailored MOF modifications can significantly boost both adsorption and photocatalytic performance, offering new possibilities for advanced water purification technologies.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Small
·
2025
·
IF 12.1
Haoyi Wang,Le Xu,Chunying Si,Yankai Zhang,Yunbiao Qi,Quanxing Zhang,Wei Jiang
Mixed polyester wastes with different chemical structures remain a key obstacle to achieving circularity in plastic utilization. Here, a programmable one-pot photothermal strategy is reported using a catalyst derived from a bimetallic MOF (Zn/Co-ZIF-C) through pyrolysis of a Zn/Co-integrated precursor. This system enables the efficient and sequential depolymerization of polycarbonate (PC), polylactic acid (PLA), and polyethylene terephthalate (PET) in mixed streams by simply tuning the irradiation intensity. Selective glycolysis of PC, PLA, and PET is triggered at ≈420, 520, and 650 mW cm −2 , respectively, enabling stepwise monomer recovery in a single reactor. Density functional theory calculations reveal a dual-site cooperative mechanism, in which ZnO and Co-N x sites cooperatively activate ester bonds and ethylene glycol, offering a mechanistic basis for the observed substrate-specific reactivity. The Zn/Co-ZIF-C catalyst exhibits broadband light absorption, strong catalytic activity, and excellent recyclability, maintaining over 95% PET conversion across five cycles. Moreover, it achieves monomer yields above 80% from nine real-world post-consumer plastics, while simultaneously removing dyes and performing magnetic separation. This work presents a robust and scalable catalytic platform for light-controlled, selective upcycling of complex polyester mixtures, offering new opportunities for sustainable plastic circularity.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MOLECULES
·
2025
·Vol. 30
·期 23
·4628
·
IF 4.6
Yaru Qin,Tingfei Yang,Na Chen,Jiale Li,Anqi Li,Yu Miao,Chenglong Shi,Jianmin Ma,Xue Qin
Layered transition-metal oxides are among the most promising sodium-ion battery cathodes owing to their high specific capacities and structurally tunable frameworks. However, the prototypical P2-Na0.67Ni0.33Mn0.67O2(NM) undergoes an irreversible P2 → O2 phase transition at high voltages, accompanied by severe lattice strain and capacity fade, which hinders practical deployment. Here, we propose a cooperative regulation strategy that couples Zn/Al co-doping with Na enrichment, and successfully synthesize P2-Na0.80Ni0.14Zn0.14Mn0.58Al0.14O2(NMZA-N14). The optimized NMZA-N14 delivers an initial discharge capacity of 125 mAh g−1at 0.1C and demonstrates exceptional cycling and rate performance, retaining 98.6% of its capacity after 100 cycles at 0.2C and 93.6% after 200 cycles at 1C. Kinetic analyses indicate a higher Na+diffusion coefficient and a lower charge-transfer resistance in NMZA-N14, evidencing substantially accelerated ion transport. In situ X-ray diffraction further reveals a reversible P2 → OP4 phase transition in the high-voltage regime with a unit-cell volume change of only ~2.27%, thereby avoiding the irreversible structural degradation observed in NM. This synergistic modulation markedly enhances structural stability and electrochemical kinetics, providing a viable pathway for the rational design of high-performance sodium-ion battery cathodes.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACTA PHYSICO-CHIMICA SINICA
·
2023
·
IF 10.9
Yixuan Wang,Canhui Zhang,Xingkun Wang,Jiarui Duan,Kecheng Tong,Shuixing Dai,Lei Chu,Minghua Huang
With the depletion of fossil fuel resources and the increasing severity of environmental pollution, it has become imperative to seek energy conversion devices with low cost, high efficiency and excellent environmental compatibility. Considering their high theoretical energy density, affordability and environmentally friendly nature, Zn-air batteries (ZABs) are regarded as promising energy storage and conversion devices. The utilization of seawater in ZABs (S-ZABs) holds great potential, given the abundance of seawater reserves, offering economic and social benefits such as reducing electrolyte costs and alleviating competition for freshwater consumption in human activities. However, the application of S-ZABs remains challenging, particularly in constructing high-performance cathode oxygen reduction reaction (ORR) catalysts that are highly resistant to Cl − corrosion in seawater-based electrolytes. In this study, we have engineered an ultrathin carbon-chainmail-shell encapsulated Co 9 Se 8 nanoparticles on N-doped mesoporous carbon (named as NMC-Co 9 Se 8 ) electrocatalysts using the high-temperature selenization strategy. The ultrathin carbon-chainmail-shell on the outside improves electron transfer during the electrocatalysis and suppresses nanoparticles agglomeration. Additionally, it could act as armor for protecting the inner active site from the adsorption of corrosive Cl − . Benefit from this unique structure, the NMC-Co 9 Se 8 catalyst exhibits excellent ORR performance, with an onset potential of 0.904 V and a half-wave potential of 0.860 V in seawater-based electrolytes. The catalyst also affords the lowest Tafel slope (35.5 mV·dec −1 ) and the highest kinetics current density of 9.816 mA·cm −2 at 0.85 V among all investigated samples. Owing to the protective effect of the ultrathin carbon-chainmailshell on the inner active sites, the NMC-Co 9 Se 8 catalyst retains 91.6% of its initial activity after continuous operation for 50000 s, surpassing the commercial Pt/C catalyst (with a current retention rate of 62.8%). More importantly, the S-ZABs based on the NMC-Co 9 Se 8 catalyst deliver a high maximum power density of 172.4 mW·cm −2 and a high specific capacity of 643.9 mAh·g −1 , exceeding those of S-ZABs powered by the commercial Pt/C catalyst (151.2 mW·cm −2 and 548.3 mAh·g −1 ). Furthermore, the S-ZABs driven by the NMC-Co 9 Se 8 catalyst demonstrate a discharge stability for up to 150 h and maintain a stable charge-discharge cycle stability over 200 h, demonstrating the practical application performance of the NMC-Co 9 Se 8 catalyst. In practical applications, the S-ZABs driven by the NMC-Co 9 Se 8 catalyst can illuminate a light-emitting diode (LED) with a driving voltage of 2 V for several hours. This work provides new ideas for developing efficient and durable catalysts with high Cl − corrosion resistance for applications in seawater-based Zn-air batteries and other energy conversion technologies. Download: Download high-res image (142KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Hongrun Jin,Simin Dai,Zehao Zhu,Yongxin Luo,Bei Qi,Kaisi Liu,Tao Wu,Xinyan Zhuang,Jun Zhou,Liang Huang
The commercialization of aqueous zinc ion batteries (ZIBs) is seriously hindered by the inferior stability of the Zn anode, which principally originates from water-induced side reactions and dendrite issues. Interfacial engineering has been considered as a cost-effective way to tackle these bottlenecks. However, most artificial solid electrolyte interphase (SEI) suffers from sluggish Zn2+ migration and thus compromises the kinetic merits of aqueous ZIBs especially at ultrahigh rates. Herein, we present a unique H2O molecules-rich zinc phytate (PAZn) interphase for the optimization of Zn anodes. The critical role of crystal water on the Zn2+ transport process is demonstrated. Benefiting from the shielding effect, the Zn2+ diffusion coefficient increases by orders of magnitude in the presence of crystal water. Accordingly, the Zn anode modified by PAZn interphase delivers an impressive lifespan of 1200 h and dramatically reduced voltage hysteresis even under an ultrahigh current density of 10 mA cm–2, and it remains stable even at a higher Zn utilization exceeding 50%. Moreover, the V2O5//PAZn@Zn full cell exhibits remarkable performance with a high capacity retention of 89.3% after 600 cycles. This work provides an effective strategy for rationally designing highly Zn2+-conductive artificial SEI for durable Zn anodes and high-performance commercially available ZIBs.
✓ 已验证
DOI
高影响因子
Energy & Environmental Materials
·
2020
·Vol. 4
·期 4
·603-610
·
IF 0
Wanwei Jiang,Haiting Shi,Xijun Xu,Jiadong Shen,Zhiwei Xu,Renzong Hu
Aqueous Zn-ion battery has emerged as one of the most prospective energy storage devices due to its low cost, high safety, and eco-friendliness. However, Zn-ion batteries are bottlenecked by significant capacity fading during long-term cycling and poor performance at high current rates. Here, we report an available cooperation of multivariate manganese oxides@carbon hybrids (MnO 2 /MnO@C and MnO 2 /Mn 3 O 4 @C) via a plasma-assisted design as an attractive Zn-ion cathode. Among them, the MnO 2 /MnO@C cathode exhibits a reversible specific capacity of 165 mAh g −1 over 200 cycles at a high rate of 0.5 A g −1 , and possesses great rate performance with high capacities of 110 and 100 mAh g −1 at a high rate of 0.8 and 1 A g −1 , respectively. The good cathode performance significantly results from the facile charge transfer and ions (Zn 2+ and H + ) insertion in the manganese oxides/carbon hybrids featuring phase stability behavior in the available cooperation of multivalence and carbon conductive substrates. This work will promote the Zn-manganese dioxide system for the design of low-cost and high-performance aqueous rechargeable Zn-ion batteries.
✓ 已验证
DOI
NANOTECHNOLOGY
·
2021
·Vol. 32
·期 49
·495603
·
IF 3.874
Peiyuan Ji,Jing Wan,Junlin Lu,Dazhi Zhang,Chenguo Hu,Yi Xi
The development of simple preparation and excellent capacity performance electrode materials is the key to energy conversion and storage for supercapacitors. Based on the growth mechanism of crystal, Zn induced NiCo nanosheets and nanoneedles composite structure deposed on Ni foam (ZNC) are successfully attained by a facile one-step method, the growth mechanism of the composite structure is further discussed. Because of its unique composites structure and additional modification of carbon, the carbon modified ZNC (ZNC@C) delivers better energy storage ability (2280 mC cm−2 at 2 mA cm−2) compare to ZNC. An asymmetric supercapacitor (ASC) is assembled by ZNC@C as the positive electrode and carbonized popcorn as the negative electrode. The ASC exhibits good energy storage performance. Zn also positively affects the adsorption energy to enhance the capacitance property based on Density Functional theory calculation. The simple method for the composite structure by tuning the kinetics behaver of the crystal can provide a new strategy in synthesizing the materials, and the material with a unique structure and high performance will have potential applications in the field of energy storage.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）