Nano-Micro Letters
·
2022
·Vol. 14
·期 1
·1-18
·
IF 23.655
Chen Yangwu,Ma Dingtao,Ouyang Kefeng,Yang Ming,Shen Sicheng,Wang Yanyi,Mi Hongwei,Sun Lingna,He Chuanxin,Zhang Peixin
Large volumetric expansion of cathode hosts and sluggish transport kinetics in the cathode–electrolyte interface, as well as dendrite growth and hydrogen evolution at Zn anode side are considered as the system problems that cause the electrochemical failure of aqueous Zn-vanadium oxide battery. In this work, a multifunctional anti-proton electrolyte was proposed to synchronously solve all those issues. Theoretical and experimental studies confirm that PEG 400 additive can regulate the Zn 2+ solvation structure and inhibit the ionization of free water molecules of the electrolyte. Then, smaller lattice expansion of vanadium oxide hosts and less associated by-product formation can be realized by using such electrolyte. Besides, such electrolyte is also beneficial to guide the uniform Zn deposition and suppress the side reaction of hydrogen evolution. Owing to the integrated synergetic modification, a high-rate and ultrastable aqueous Zn-V 2 O 3 /C battery can be constructed, which can remain a specific capacity of 222.8 mAh g −1 after 6000 cycles at 5 A g −1 , and 121.8 mAh g −1 even after 18,000 cycles at 20 A g −1 , respectively. Such “all-in-one” solution based on the electrolyte design provides a new strategy for developing high-performance aqueous Zn-ion battery.
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高影响因子
Industrial Chemistry & Materials
·
2025
·
IF 11.9
Shenzhen Cong,Si Sun,YiJing Zhang,Ming Wang,Zhehua Jia,Jiaoyu Peng,Huan Pang
Metal-organic framework (MOF) membranes have received widespread research attention as a novel membrane material for H2/CO2 separation. The preparation of MOF membranes can be extended by constructing MOF membranes with homogeneous heterogeneous structure and the MOF membranes with high permeance and high selectivity can be prepared. Here, we use the chelation-assisted interfacial growth process to construct a seeding layer, and then prepare Co-Zn-ZIF-L membranes with homogeneous heterogeneous structure by secondary growth for the efficient separation of H2/CO2. The resulting Co-Zn-ZIF-L membranes show an H2 permeances of 2156 GPU and the H2/CO2 selectivity of 31.6 at 298K and 1.0 bar, surpassing the Robeson upper bond (2008). Furthermore, the Co-Zn-ZIF-L membrane has a H2/CO2 separation stability of 65 h and can efficiently separate to obtain pure H2.
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高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Waner Hou,Xun Lei,Zhimin Liu,Xuanxuan Hao,Jintao Cheng,Yaxin Li,Leqian Hu,Peng Li
Herein, ZnCo bimetallic zeolite imidazole framework (ZnCo-ZIF) nanocubes were synthesized and used as 2e − oxygen reduction reaction (2e-ORR) electrocatalysts. ZnCo-ZIFs showed excellent ORR catalytic activity, which was benefit for producing reactive oxygen species (ROS) efficiently and enhancing the electrochemiluminescence (ECL) emission from luminol/H 2 O 2 system. The reaction mechanism investigation implied that ORR reaction could produce ROS, and the ECL response exhibited a positive correlation with the catalytic activity of ZnCo-ZIFs promoter. In addition, the electrocatalytic activity of different Zn/Co molar ratio (1/ 9, 1/5, 1 /1, 5/1 and 9/1) were investigated, the results showed that ZnCo-ZIF-IV with Zn/Co molar ratio of 5/1 displayed the highest ORR electrocatalytic performance, and the onset potential, H 2 O 2 production rate, the faraday efficiency were 0.67 V (vs. RHE), 67.17 % and 50.74 %, respectively. Finally, an ECL immunosensor based on the promoting effect of ZnCo-ZIF-IV nanocubes on the luminol/H 2 O 2 ECL system was proposed for the sensitive zearalenone assay. This strategy offers a new way to study the luminol-cathodic ECL system.
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Science Bulletin
·
2023
·
IF 18.9
Anbin Zhou,Huirong Wang,Xin Hu,Fengling Zhang,Yi Zhao,Zhengqiang Hu,Qiankui Zhang,Zhihang Song,Yongxin Huang,Li Li,Feng Wu,Renjie Chen
Aqueous Zn 2+ ion batteries present notable advantages, including high abundance, low toxicity, and intrinsic nonflammability. However, they exhibit severe irreversibility due to uncontrolled dendrite growth and corrosion reactions , which limit their practical applications. Inspired by their distinct molecular recognition characteristics, supramolecular crown ethers featuring interior cavity sizes identical to the diameter of Zn 2+ ions were screened as macrocyclic hosts to optimize the Zn 2+ coordination environment, facilitating the suppression of the reactivity of H 2 O molecules and inducing the in-situ formation of organic–inorganic hybrid dual-protective interphase. The in-situ assembled interphase confers the system with an “ion-sieving” effect to repel H 2 O molecules and facilitate rapid Zn 2+ transport, enabling the suppression of side reactions and uniform deposition of Zn 2+ ions. Consequently, we were able to achieve dendrite-free Zn 2+ plating/stripping at 98.4% Coulombic efficiency for approximately 300 cycles in Zn||Cu cell, steady charge–discharge for 1360 h in Zn||Zn symmetric cell, and improved cyclability of 70% retention for 200 cycles in Zn||LMO full cell, outlining a promising strategy to challenge lithium-ion batteries in low-cost, and large-scale applications.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2025
·
IF 4.6
Qinyi Zhang,Jiaqi Liang,Junyi Zhang,Zhidong Chang,Yanjun Zhao,Changyan Sun
Considering the potential risks of ferulic acid (FA), this study developed a novel fluorescent probe based on Zn-MOF for the efficient detection of FA in food. The Zn-MOF was successfully synthesized by solvothermal method, and its structure and stability were confirmed by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and powder X-ray diffraction (PXRD). It exhibited strong fluorescence at 420 nm under 348 nm excitation, and maintained 92.3 % of its fluorescence intensity after 7 days of ethanol immersion and 95.6 % at pH 3–12, demonstrating excellent chemical stability. The Zn-MOF could be used to detect FA and showed high sensitivity with the detection limit of 91.8 nM. The competitive experiments indicated that 17 common interferents had no significant effect on the detection (the fluorescence response change <5 %). The fluorescence of the sensing platform remained at 98.5 % after 5 cycles of use. Mechanism studies revealed that the fluorescence quenching was caused by the synergistic effect of photoinduced electron transfer, inner filter effect and competitive absorption. In the actual detection of corn wine samples, the method had a recovery rate of 100.7–104.1 % and a relative standard deviation (RSD) of less than 2.31 %, verifying its reliability in complex matrices. Furthermore, a fluorescent sensing composite material for FA was successfully developed by physically blending Zn-MOF with polyvinyl alcohol (PVA).
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高影响因子
ADVANCED MATERIALS
·
2022
·Vol. 34
·期 33
·2203905
·
IF 32.086
Zhou Xia,Shuo Li,Guiqing Wu,Yanyan Shao,Dongzi Yang,Jinrong Luo,Zhenyang Jiao,Jingyu Sun,Yuanlong Shao
Wet-spinning is a promising strategy to fabricate fiber electrodes for real commercial fiber battery applications, according to its great compatibility with large-scale fiber production. However, engineering the rheological properties of the electrochemical active materials to accommodate the viscoelasticity or liquid crystalline requirements for continuous wet-spinning remains a daunting challenge. Here, with entropy-driven volume-exclusion effects, the rheological behavior of vanadium pentoxide (V 2 O 5 ) nanowire dispersions is regulated through introducing 2D graphene oxide (GO) flakes in an optimal ratio. By optimizing the viscoelasticity and liquid-crystalline behavior of the spinning dope, the wet-spun hybrid fibers display controlled hierarchical orientation. The wet-spun V 2 O 5 /rGO hybrid fiber with the optimal 10:1 mass fraction (V 2 O 5 /rGO 10:1 ) exhibits a highly oriented nanoblock arrangement, enabling efficient Zn-ion migration and an excellent Zn-ion storage capacity of 486.03 mAh g −1 at 0.1 A g −1 . A half-meter long quasi-solid-state fiber Zn-ion battery is assembled with a polyacrylamide gel electrolyte and biocompatible Ecoflex encapsulation. The thus-derived fiber Zn-ion battery is integrated into a wearable self-powered system, incorporating a highly efficient GaAs solar cell, which delivers a record-high overall efficiency (9.80%) for flexible solar charging systems.
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Science Advances
·
2021
·Vol. 7
·期 47
·
IF 14.143
Zhong Liang,Lianpeng Song,Mingzi Sun,Bolong Huang,Yaping Du
Electrochemical reduction of CO 2 (CO 2 RR) to value-added liquid fuels is a highly appealing solution for carbon-neutral recycling, especially to syngas (CO/H 2 ). Current strategies suffer from poor faradaic efficiency (FE), selectivity, and controllability to the ratio of products. In this work, we have synthesized a series of single and dual atomic catalysts on the carbon nitride nanosheets. Adjusting the ratio of La and Zn atomic sites produces syngas with a wide range of CO/H 2 ratios. Moreover, the ZnLa-1/CN electrocatalyst generates the syngas with a ratio of CO/H 2 = 0.5 at a wide potential range, and the total FE of CO2RR reaches 80% with good stability. Density functional theory calculations have confirmed that the Zn and La affect electronic structures and determine the formation of CO and H 2 , respectively. This work indicates a promising strategy in the development of atomic catalysts for more controllable CO 2 RR.
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Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 26
·14311-14319
·
IF 11.9
Lantao Liu,Ziyu Sun,Yaping Lu,Jiapeng Zhang,Yiming Li,Gaixia Zhang,Xiaohong Chen,Sasha Omanovic,Shuhui Sun,Huaihe Song
Due to the environmental friendliness and high safety of aqueous Zn-ion hybrid capacitors (ZIHCs), the exploration of high-performance porous carbon electrodes for ZIHCs has recently attracted significant attention. However, most of the reports focus on the preparation method and modification of porous carbon, and rarely explore the mechanisms of material synthesis/fabrication in the carbonization process. In this study, we developed a simple self-template method for preparing N-doped porous carbon from D-calcium pantothenate (DCP). More importantly, the morphology evolution, heteroatom doping, and defect generation of the DCP during carbonization are clarified. Based on a clear understanding of the carbonization mechanism, assisted by DFT theoretical simulations, we find the optimal carbonization temperature of the DCP-derived porous carbon for ZIHCs. The assembled ZIHCs exhibit excellent rate performance (140 mA h g−1 at 0.2 A g−1 and 86.2 mA h g−1 at 6.4 A g−1), and high energy density and power density (111.1 W h kg−1 and 4835.2 W kg−1, respectively). This work provides a constructive avenue for designing high-performance ZIHC electrode materials.
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Journal of Energy Storage
·
2023
·
IF 9.4
Jingxin Zhao,Hongyu Lu,Xijun Wei,Yuanyuan Gao,Yingze Song,Bingang Xu
Constructing a Zinc ion hybrid supercapacitor (ZHMSC) configuration with excellent electrochemical performance for progressive energy storage is worldwide attractive but yet still a considerable challenge. In this study, a universal and effective strategy has been proposed and developed for 3D-writing additive-free V 2 CT x MXene architected ZHMSC to realize the excellent electrochemical performance. With proper designs of printable electrochemical materials and direct ink writing architectures, 3D printed ZHMSC devices with high areal capacitance and excellent areal energy density have been achieved in a limited footprint area. Benefitting from the excellent ion diffusion and highly conductive networks, the 3D printed ZHMSCs device achieves the ultrahigh specific capacitance of 3.82 F cm −2 , large energy density of 1.36 mW h cm −2 and remarkable cyclic performance with the capacitance retention of 97.8 % after 12,000 cycles at 20 mA cm −2 . This work not only provides new insights on direct ink writing for high-performance Zn-Ion hybrid capacitor, but also offers a facile and efficient method to construct large-scale energy storage devices with high electrochemical performance for future energy storage.
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ChemSusChem
·
2022
·Vol. 15
·期 11
·e202200313
·
IF 9.14
Gaoli Guo,Xiaoping Tan,Kaidi Wang,Huang Zhang
Aqueous zinc batteries have been regarded as a promising energy storage technology due to their high energy, high material abundance, low toxicity, and intrinsic safety. NASICON-type materials have been proposed as efficient cathodes for rechargeable batteries, yet they suffer from fast degradation and low Coulombic efficiency in aqueous batteries. Here we demonstrate that a rationally designed aqueous electrolyte containing a supporting Na salt and polymer additive can efficiently suppress the water activity through hydrogen bonding and facilitate the anion involvement in interfacial reactions, thus enabling the stable operation of sodium superionic conductor (NASICON) cathodes in aqueous zinc batteries. As exemplified by a Na 3 V 2 (PO 4 ) 3 cathode, the cell with zinc metal anode exhibits high cycling Coulombic efficiencies (around 99.9 % in average) with a steady output voltage and capacity retention for 300 cycles. This work addresses the potential issues with NASICON-type cathodes in aqueous zinc batteries and proposes an effective solution via fundamental interphasial chemistry to design efficient and sustainable aqueous electrolytes. Graphical Engineering electrode-electrolyte interphase : A rationally designed aqueous electrolyte with bi-cation and polymer additive is reported for aqueous zinc batteries with NASICON cathodes. As exemplified by a Na 3 V 2 (PO 4 ) 3 cathode, the full cells exhibited remarkable cycling stability and efficiency, benefiting from the well-suppressed material dissolution by electrolyte-induced interfacial engineering.
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INTEGRATED FERROELECTRICS
·
2022
·
IF 0.836
Wenhua Wang,Chengcai Li,Wenyu He,Guojin Liu,Caihong Lei,Hailin Zhu,Yuan Yu
In this work, antibacterial and antifouling properties Polyvinylidene fluoride (PVDF) composite membranes were prepared via nonsolvent-induced phase separation of PVDF and Zn@TiO2 blending. The Zn@TiO2 nanoparticle was successfully prepared by the sol-gel method, and then Zn@TiO2 was used to modify the PVDF membrane to obtain higher water flux and antibacterial and antifouling properties. The PVDF composite membrane was systematically characterized through a series of analysis techniques, such as scanning electron microscopy (SEM) and X-ray diffraction (XRD). In addition, the water contact angle, pure water flux, tensile strength, porosity, antibacterial property and stain resistance of the membrane have been studied. Escherichia coli and Staphylococcus aureus were used to evaluate the antibacterial performance of the membrane, and the BSA was selected as a model organic pollutant to study the antifouling performance of the membrane. Results show that the PVDF composite membranes have excellent antibacterial properties (nearly 100%), high permeability (up to 433.69 L m−2 h−1) and mechanical strength (enhanced by 26.5%). It can be used for possible complex high-protein wastewater treatment without facing serious biological pollution problems, and has broad application prospects.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Yu Deng,Zhengquan Xiao,Dajin Liu,Shilin Wu,Jiahang Zou,Zhipeng Jiang,Yongtao Li
Aqueous zinc-iodine batteries (AZIBs) are considered a very promising way to store energy. However, inherent issues such as cathodic slow I₂/I⁻ redox kinetics and anodic zinc (Zn) dendrite growth, limit the practical application of AZIBs. Here, we used just a trace amount of the electrolyte additive cesium iodide (CsI) for homogeneous deposition of Zn 2+ and enhanced cathode kinetics in AZIBs. The introduction of Cs + produces electrostatic shielding layers that regulate the homogenization of Zn 2+ deposition. Besides, I - promotes cathodic kinetics to achieve the effect of increasing the battery capacity. Electrochemical tests show that by adding 5 mM trace CsI to the Zn-Zn symmetric cell, the cycling time was increased to 650 h, and the Zn-Cu half-cell's cycling time was increased to 3000 cycles under conditions of 5 mA cm −2 . More importantly, Zn-I 2 cells can stably cycle for 10000 cycles at 1 A g −1 and 10 A g −1 . The average capacity increased to 97.54 mAh g −1 after 100 cycles at 1 A g −1 and 74.57 mAh g −1 after 100 cycles at 10 A g −1 . After 100 cycles, the Zn-I 2 full cell's capacity retention rose from 2.41 % to 57.47 % under the conditions of 1 A g −1 and a 5.6 N/P ratio.
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