ADVANCED FUNCTIONAL MATERIALS
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2026
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IF 19.9
Liuxu Wei,Jinyao Chi,Yue Yin,Yuntian Lan,Zexing Wu,Jingqi Chi,Zhenyu Xiao,Zhen Zhang,Lei Wang,Fangxu Dai
Although the carbon matrix encapsulated functioned LDH should be an ideal model to solve the kinetics and durability issues of cathode materials of aqueous alkaline zinc batteries (AAZBs), the construction of this target structure remains synthetically challenging, due to the thermal instability of LDH. In this work, we develop a redox-driven in situ etching strategy to construct a strongly coupled Cu 2 S/CoNi-LDH heterojunction within an octahedral carbon matrix (Cu 2 S/LDH@C). The strong coupled Cu 2 S/LDH hetero-interface builds a robust built-in electric field (BEF) with 2.39 electrons transferred from LDH to Cu 2 S, which is beneficial for enhanced reaction kinetics. Furthermore, the 3D carbon network serves as a confined framework that mitigates the volume effect during the charging/discharging process. The optimized Cu 2 S/LDH@C electrode delivers a high specific capacity of 235.6 mAh g −1 (1696.0 F g −1 ) at 1 A g −1 , and maintains 82.1% of its initial capacity after 10,000 cycles. The assembled Cu 2 S/LDH@C//rGO-Zn device achieves a remarkable energy density of 254.7 Wh kg −1 at 0.45 kW kg −1 power density. This redox-driven in situ etching strategy provides a general and reliable pathway for constructing carbon-encapsulated heterostructures, opening a possible pathway for electrode design that simultaneously addresses kinetics and stability issues in advanced energy storage systems.
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高影响因子
FOOD CHEMISTRY
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2026
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IF 10.4
Yibo Song,Jingjing Cui,Chunlei He,Jing Cao,Huilin Li,Wenjing Zhao,Mingfei Pan,Shuo Wang
CoNi-LDH/PtNPs synergistically enhances Hb immobilization and electron transfer. • Hb serves as the recognition element for simplified MP detection. • The sensor shows excellent selectivity, repeatability, and stability. • Good accuracy and precision for MP detection in real foods were achieved. In this study, a flower-like Co Ni bimetallic layered double hydroxide (CoNi-LDH) with a high specific area was synthesized, and CoNi-LDH/PtNPs composites were fabricated by self-assembling PtNPs onto the LDH surface. The resulting composites were employed to construct an electrochemical biosensing interface for the efficient detection of methyl parathion (MP). The porous CoNi-LDH, combined with the high conductivity of PtNPs, provided a suitable microenvironment for hemoglobin (Hb) immobilization, preserve bioactivity while accelerating electron transfer. This synergy significantly enhanced electrochemical response, improving detection sensitivity. The developed biosensor exhibited a linear response to MP in the range of 1–110 ng mL −1 with a detection limit of 0.38 ng mL −1 . In the analysis of vegetable samples, the sensor demonstrated reliable analytical performance, yielding recoveries of 91.1–102.1% with RSDs below 8.0% which were matched HPLC results ( R 2 = 0.9949). This work offers a practical electrochemical strategy for monitoring MP residues in agricultural products, demonstrating promising application prospect.
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PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2023
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IF 9.9
Xiaolin Ma,Linxiang Zhou,Ting Chen,Panpan Sun,Xiaowei Lv,Haizhou Yu,Xiaohua Sun,T. Leo Liu
Seeking cathode materials with high areal capacity and excellent cycling tolerance is a key step to develop aqueous rechargeable zinc-based alkaline batteries with high energy density, power density and excellent stability. Here, the bilayered cathode composite (MCN-LDH@CP) of molybdate intercalated cobalt–nickel layered hydroxide nanosheets (MCN-LDH) grown on cobalt phosphate octahydrate microsheet (CP) was prepared by a two-step hydrothermal process. Molybdate intercalation significantly reduces the thickness of cobalt–nickel layered hydroxide, greatly increases its specific surface area, regulates its pore distribution, increases the crystal plane spacing, promotes the diffusion rate of hydroxide in it, and increases its specific capacity. Meanwhile, the bilayered MCN-LDH@CP electrode significantly improved the areal energy density (2.89 mWh/cm 2 ) and peak power density (111.22 mW/cm 2 ) and cycle stability (97.8 % after 7000 cycles) of the CoNi//Zn battery. The excellent stability is mainly due to the fact that the MCN-LDH overlay inhibits the loss of P element of CP and improves the structural stability of the sample. The quasi-solid-state MCN-LDH@CP//Zn battery can still charge a mobile phone even when hammered and pierced, showing excellent safety and reliability. This work opens a new avenue to develop CoNi//Zn batteries with high energy density, power density and excellent tolerance.
研究领域:
材料科学
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电化学
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PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2020
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IF 7.489
M. Usman Tahir,Hina Arshad,Heng Zhang,Zhiyan Hou,Jide Wang,Chao Yang,Xintai Su
Single imidazolate framework-67 (ZIF-67) is commonly used as a template to prepare layered double hydroxides (LDHs) with specific morphology to improve the performance of materials. Herein, the Co 2+ ion in ZIF-67 is partially substituted by Ni 2+ to obtain the dodecahedron bimetallic imidazolate framework (CoNi-ZIF). Subsequently, using bimetallic CoNi-ZIF as the sacrificial template, CoNi-LDH hierarchical hollow cage structures with wrinkled nanosheet arrays are synthesized at room temperature and in aqueous solution by an inexpensive and environment friendly surfactant-free approach. The optimized etched CoNi-LDH4 has a maximum specific capacitance of 1877 F g −1 at a current density of 1 A g −1 , and cycling stability of 99.89% after 5000 cycles, which is significantly better than that of ZIF-67 derived CoNi-LDH67 (1357 F g −1 at 1 A g −1 , cycling stability of 73.35%). The asymmetric supercapacitor with CoNi-LDH4 as a cathode and activated carbon (AC) as anode has an energy density of 49.3 Wh kg −1 at 750 W kg −1 power output and stable cycling performance (capacity retention of 92.13% after 5000 cycles). This study shows the prospect of bimetallic CoNi-ZIF derived LDHs nanostructures prepared at room temperature and in aqueous solution to improve the performance and stability of supercapacitors.
研究领域:
材料科学
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电化学
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纳米技术
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能源存储
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高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121881
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IF 7.5
Qun Liu,Jiexiong Zhong,Huaiyu Wang,Shiqi Song,Xiaohui Xu,Wei Yang,Min Lu
The thorough removal of Cu 2+ from water poses a formidable challenge in environmental remediation. To overcome the performance limitations of traditional adsorbents that rely on physical pores or single functional groups. This study successfully constructs a hierarchical mesoporous composite, denoted as Cys-PDA@CoNi-LDH (where Cys, PDA, and LDH refer to L -cysteine, polydopamine, and layered double hydroxide, respectively). It is synthesized by grafting Cys onto a PDA framework via Michael addition, followed by in situ growth of CoNi-LDH nanosheets. The composite exhibits a high Cu 2+ adsorption capacity of 295.3 mg·g −1 and a removal efficiency of 92.2 % under optimal conditions (318 K, pH=6), with strong resistance to ionic interference. The synergistic mechanism involves specific -SH coordination, LDH ion exchange, surface complexation, and mesoporous confinement. Efficient desorption (86 % recovery) is achieved using 0.1 mol·L −1 HCl, and over 75 % of the initial capacity is retained after five cycles. Fixed-bed column experiments confirm its practical potential, with breakthrough curves well-fitted by Thomas and Yoon-Nelson models (adjusted R 2 = 0.986–0.999). Notably, it achieves a treatment capacity of 1.7 L·g −1 for low-concentration Cu 2+ (5 mg·L −1 ). This work provides a promising strategy for designing selective and renewable adsorbents for water purification.
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高影响因子
ELECTROCHIMICA ACTA
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2023
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IF 6.6
Yan Sang,Zixuan Guo,Guohong Li,Yingying Xue,Jingwei Xue
The study and development of bifunctional non-precious metal catalysts with excellent oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) electrocatalytic activities are particularly important and challenging for electrocatalytic total water splitting. Here, we report a non-precious material constructed by growing cobalt-nickel double hydroxides on ZIF-derived Co nanoparticles and nitrogen-doped carbon framework (CoNi-LDH/Co@NC), which exhibits excellent electrocatalytic performances for both OER and HER in alkaline media. When used as OER and HER electrocatalysts, CoNi-LDH/Co@NC only needs 359 mV and 187 mV overpotentials at a current density of 100 mA cm −2 , respectively. Surprisingly, using CoNi-LDH/Co@NC as both cathode and anode for a two-electrode water splitting system, a small battery voltage of 1.51 V is required at the current density of 10 mA cm −2 , and the current density remained stable for 20 h without any obvious attenuation. This opens up new possibilities for further exploration of non-precious metal electrocatalysts for water splitting.
研究领域:
材料科学
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电化学
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高影响因子
POLYMER
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2025
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IF 4.5
Tianyi Ma,Lijing Han,Gaofei Zheng,Mingyu Wang,Junjia Bian,Yan Zhao,Hongwei Pan,Huiliang Zhang
In this work, we reported the first synthesis of an organic-inorganic hybrid flame retardant (PAPP@CoNi-LDH). This was achieved through the electrostatic self-assembly of piperazine pyrophosphate (PAPP) and cobalt–nickel layered double hydroxide (CoNi-LDH). Compared to PLA/5 wt% PAPP, the PLA/4.5 wt% PAPP/0.5 wt% PAPP@CoNi-LDH composite (FRPLA-0.5) achieved a superior Underwriters Laboratories Vertical Burning Test rating (UL-94, from V-2 to V-0) and higher Limiting Oxygen Index (LOI, from 22.5 % to 28.0 %), demonstrating the exceptional flame-retardant efficiency of PAPP@CoNi-LDH at minimal loading. Furthermore, the superior char-catalyzing capability reduced the peak heat release rate of FRPLA-0.5 from 556 to 490 kW/m 2 versus pure PLA. Moreover, uniaxial pre-stretching was applied to fabricate flame-retardant PLA composites with superior mechanical properties. For FRPLA-0.5 subjected to 2.0 × pre-stretching (pre-stretching ratio = 2.0), tensile strength surged from 54.7 MPa to 96.6 MPa, elongation at break increased from 6.1 % to 63.7 %, and impact strength rose remarkably from 0.7 kJ/m 2 to 87.2 kJ/m 2 . This dual-strategy design achieved high-performance PLA composites with simultaneously enhanced fire safety and mechanical robustness.
研究领域:
材料科学
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聚合物复合材料
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消防安全工程
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材料力学性能
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2023
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IF 22.1
Yunpeng Liu,Zhongxin Chen,Yunyi Yang,Ren Zou,Binglu Deng,Linxin Zhong,Kian Ping Loh,Xinwen Peng
The major bottleneck in self-powered water splitting devices by renewable energy lies in the kinetically sluggish oxygen evolution reaction (OER), which only produces low-value oxygen. Herein, we explore sucrose electrooxidation as an alternative anodic reaction for production of valuable chemicals at a reduced electricity consumption. By developing a reversible redox cycle of Ni 2+ /Ni 3+ and Co 2+ /Co 3+ in the CoNi layered double hydroxide (LDH), the required voltage of sucrose oxidation for 100 mA cm −2 is reduced by 240 mV compared to oxygen evolution. The sucrose electrooxidation by CoNi LDH is a two-step reaction including the electrooxidation of Ni 2+ /Co 2+ to Ni 3+ /Co 3+ and the spontaneous reaction between Ni 3+ /Co 3+ and sucrose. By feeding with natural sugarcane juice, a solar-driven electrolyser is assembled for the co-production of value-added formic acid and hydrogen. Our work demonstrates a sustainable route for integrating hydrogen production and biomass electrooxidation for energy applications.
研究领域:
能源化学
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电催化
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可再生能源
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高影响因子
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