DIAMOND AND RELATED MATERIALS
·
2024
·
IF 4.3
Shiyuan Zhu,Peng Liu,Qiongyu Zhou,Qianjun Deng,Yuanyuan Li,Jiacheng Wang,Zuo He,Changchun Tian,Xiaofen Wang
Zn coating is a typical anti-corrosion coating for carbon steel. Considering the sacrificial nature of Zn coating, it is essential to enhance the corrosion resistance for the long-term performance in the practical application. In this work, two-dimensional carbon nanoplatelets (2D-CNs) with nanometer thickness (∼100 nm) and ultra-large lateral size (10–40 μm) and Mn element have been successfully co-deposited with Zn onto low carbon steel by a simple electrodeposition method. Results show that the Zn-Mn/2D-CNs composite coating is composed of Zn phase, ZnMn 3 phase and a small number of 2D-CNs. The Zn-Mn/2D-CNs composite coating exhibits a modified surface quality with ultrafine grains and smaller roughness (Ra = 176 nm, Rq = 131 nm) when compared with that of Zn coatings (Ra = 798 nm, Rq = 684 nm). Besides, the inert 2D-CNs within the composite coating can act as the corrosion barriers. Therefore, the Zn-Mn/2D-CNs composite coating has excellent anti-corrosion performance, owning the lowest corrosion current densities i corr (9.2 μA cm −2 ) and maximum coating resistance R coat (1.2 kΩ·cm −2 ) and charge transfer resistance R ct (3.5 kΩ·cm −2 ), associated with its modified microstructure, Mn element with passivation property, and 2D-CNs barriers. These results demonstrate the desirable potentiality of inert 2D carbon materials in the electrodeposition of Zn-based coating for improving the corrosion resistance.
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Microstructures
·
2025
·Vol. 5
·期 2
·N
·
IF 9
Canglong Li,Hongli Qi,Jie Huang,Dongping Chen,Yuanzi Cheng,Minghan Xu,Zihao Jiang,Huaming Yu,Yang Huang,Guanghui Li,Yuejiao Chen
The cyclability and reversibility of aqueous zinc-ion batteries (AZIBs) are severely hampered by the safety concerns arising from the Zn dendrite growth. Therefore, a stable anode with inhibited dendrites and side reactions is crucial for AZIBs. Herein, we utilized methyl acetoacetate (MA) as an additive to prevent dendrite growth and enable highly reversible Zn anodes. Benefiting from the nucleophilic groups (carbonyl groups) in MA, MA molecules can preferentially adsorb on the anode/electrolyte interface (AEI), forming a molecular protective layer. Such MA layers can not only regulate the migration and deposition of zinc ions, but also inhibit side reactions induced by the decomposition of free H2O molecules at AEI. Therefore, the symmetric cell with the addition of MA achieves a long-term cycling stability of 1,500 h at 2 mA cm-2 with a capacity of 2 mAh cm-2. In addition, the Zn//NVO full cell using MA-contained electrolyte demonstrates a high specific capacity (138.4 mAh g-1) with an outstanding capacity retention (92.8% after 600 cycles) at 1 A g-1. This work provides a principle for the use of ester-based additives with nucleophilic groups to suppress Zn dendrite growth for highly durable zinc metal anodes.
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DALTON TRANSACTIONS
·
2025
·
IF 3.3
Tong Wu,Lei Kang,Fan Liu,Ruixin Guo,Shu Guo,Tianhong Huang,Shuangyue Shang,Lijuan Liu,Xiaoyang Wang
Cation regulation is a compelling strategy for developing new compounds with optimized crystal structure by atomic-scale manipulation. Herein, we report two new SBBO-like fluoroberyllium borates, SrMgBe₂(BO₃)₂F₂ (SMBBF) and SrZnBe₂(BO₃)₂F₂ (SZBBF). They crystallize in a trigonal system and feature a [Be₃B₃O₆F₃]∞ single layer stabilized by the incorporation of Mg²⁺/Zn²⁺ cations and F⁻ cations. Both compounds exhibit deep-UV absorption edges below 200 nm. Theoretical calculations confirm their potential as deep-UV birefringent materials, with correspinding birefringence values of 0.064 (SMBBF) and 0.063 (SZBBF) at 589 nm, respectively. This work demonstrates the effectiveness of cation regulation in designing novel borate-based optical materials.
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高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-11
·
IF 15.7
Lai Guojun,Zhao Zequan,Zhang Hao,Hu Xueting,Lu Bingan,Liang Shuquan,Zhou Jiang
Engineering the formulation of an Mn-based positive electrode is a viable strategy for producing an efficient aqueous zinc-ion battery. However, Mn dissolution and the byproducts result in capacity fading, thus limiting its electrochemical performances. To solve the undesirable issues, the concept of in-situ forming the positive electrode/electrolyte interface on the commercial MnO 2 is designed, with the help of introducing the Dioctyl Phthalate into the ZS-based electrolyte (2 M ZnSO 4 + 0.2 M MnSO 4 ), designated as ZS-DOP electrolyte. An advanced three-dimensional chemical and imaging analysis on a model material reveals the dynamic formation of positive electrode/electrolyte interface. The formed organic interface effectively suppresses the corrosion of the electrolytes with its hydrophobicity, and adjusts the pH value according to Le Chatelier’s Principle to inhibit the production of by-products. Specifically, the pouch cell assembled with the ZS-DOP electrolyte attains a reversible capacity of ~2.5 Ah and powers the unmanned aerial vehicle. Furthermore, photovoltaic energy storage applications deliver a stable capacity of 0.5 Ah and realize the power supply for mobile phones and other electronic devices. Our results facilitate the development of in-situ surface protection on the positive electrode in aqueous zinc-ion battery, providing insights into its practical application.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Keyi Chen,Quan Zong,Xuelian Liu,Haoran Yuan,Qilong Zhang,Huiwei Du,Guozhong Cao
Vanadium-based compounds suffer from the poor intrinsic conductivity, unstable structure, and sluggish reaction kinetics as the cathode materials for aqueous zinc ion batteries. In this work, conductive polymer (polypyrrole, PPy) coating/pre-intercalation is proposed to achieve stable and reversible Zn 2+ storage in ammonium vanadates (NH 4 V 4 O 10 , NVO). The PPy coating on the surface of the NVO nanobelts effectively suppresses material dissolution, and promotes the desolvation of hydrated zinc ions at the interface. The intercalated PPy within the layered structure expands the interlayer spacing, induces the formation of oxygen vacancies, and increases the electronic conductivity, thus accelerating zinc ion diffusion and electron transport kinetics. Benefiting from simultaneous optimization of the surface and interlayer structure, the PPy-NVO electrode demonstrates outstanding electrochemical properties, delivering a high discharge capacity of 455mAh g −1 at 0.1 A g −1 and 250mAh g −1 at 5 A g −1 , maintaining 89 % of its initial capacity after 2500 cycles at 4 A g −1 . Ex situ characterization techniques demonstrate the reversible Zn ions insertion/extraction storage mechanism in the PPy-NVO cathode.
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JOURNAL OF POWER SOURCES
·
2022
·
IF 9.794
Peijie Xu,Chunyuan Wang,Changxin Wei,Yigao Sun,Yi Zhou,Hongfei Cheng
Rechargeable aqueous Zn/MnO 2 batteries are promising to be one of the best next-generation energy storage devices owing to the abundant reserves, mild chemical properties, and high energy density . Nevertheless, the dendrite, corrosion, and by-products issues are inherent on Zn metal anode and severely affect the applications of Zn/MnO 2 batteries. Herein, we propose a lamellated reconstructed montmorillonite-based membranes (RMM) with nanofluidic channels for uniforming the distribution of Zn 2+ , restraining the growth of Zn dendrite, and suppressing the generation of irreversible products. The RMM with excellent stability in electrolyte is sandwiched between the separator and Zn metal anode to assemble cells. The Zn/MnO 2 cells with RMM-Zn anode can achieve stable Zn electroplating/electrostripping over 1000 h at a current density of 4.4 mA cm −2 with almost no Zn dendrite. Meanwhile, the Zn/MnO 2 cells based on RMM-Zn anode exhibit high durability and capacity retention of 92.6% after 900 cycles at 5 C. The novel design of reconstructed nanoclay-based membranes with nanofluidic channels opens a new opportunity for practical applications of high-performance rechargeable aqueous batteries .
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Journal of Materials Chemistry A
·
2016
·Vol. 5
·期 3
·952-957
·
IF 8.262
Kui Zhou,Bibimaryam Mousavi,Zhixiong Luo,Shophot Phatanasri,Somboon Chaemchuen,Francis Verpoort
A novel Zn/Co zeolitic imidazolate framework (ZIF) has been constructed by an easy and straightforward room temperature technique. Several characterization techniques such as SEM, TEM-EDX, single-crystal XRD and ICP have been applied to confirm that the structure formed is a sodalite (SOD) cage type structure. The Zn/Co-ZIF possesses a high nano-crystallinity and porosity with a large surface area. By tuning the amount of Co and Zn in the Zn/Co zeolitic imidazolate framework, the physical and chemical properties have been improved compared with those of the single metal frameworks (ZIF-8 and ZIF-67). Consequently, the Zn/Co-ZIF was investigated for two different applications; gas adsorption (CO2, CH4 and N2) and catalysis (CO2 conversion to cyclic carbonates) and the obtained results were compared with the performance of previously reported single metal frameworks (ZIF-8 and ZIF-67). Additionally, hydrolytic stability tests under ambient conditions and immersed in water at 75 °C were performed and pointed out that Zn/Co-ZIF exhibits a higher stability. Moreover, based on these results, the Zn/Co-ZIF demonstrates better properties compared with ZIF-8 and ZIF-67.
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JOURNAL OF CATALYSIS
·
2018
·
IF 6.759
Somboon Chaemchuen,Xuan Xiao,Marzieh Ghadamyari,Bibimaryam Mousavi,Nikom Klomkliang,Ye Yuan,Francis Verpoort
A robust catalyst generated from the pyrolysis of bimetallic Zn/Co-ZIF comprising magnetic properties demonstrated to be an effective heterogeneous catalyst system for CO 2 conversion reaction without the need of co-catalyst and solvent. Controllable pyrolysis under various conditions resulted in a unique active structure composed of metallic particles stabilized in a nitrogen-doped carbon matrix. The metallic particles acting as acid sites are dispersed in a nitrogen-doped porous carbon-wall which provides the basic sites. These sites are created during the pyrolysis process of Zn/Co-ZIF used as a special template under a controlled atmosphere. The resulting material possessing both, acid and basic sites, showed an excellent catalytic performance for the cycloaddition of CO 2 into epoxides as these sites correspond to the active sites in the catalytic cycle. Additional, the pyrolysis conditions indicated to play an important role in the properties of the resulting materials and in parallel with the catalytic performance. The catalytic material proved to be very robust and maintained high activities for at least eleven cycles using the optimized reaction condition. Moreover, the magnetic property of the resulting catalyst is advantageous especially for the separation from the reaction mixture.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Rongjing Jia,Shuling Chang,Ruirui Wang,Yanhong Xu,Rijie Wang,Lihong Zhang
The electrocatalytic CO 2 reduction reaction to CO (ECO 2 RR) is an effective way to achieve carbon resource utilization. It requires catalysts that can synergistically couple CO 2 activation with efficient CO desorption. This work engineers this synergy by constructing an interfacial Ag δ+ -O-Zn configuration on Zn(OH)F-derived supports via controlled Ag loading (0–5 wt%). The optimal catalyst (3A/Z, 3 wt% Ag) balances the formation of interfacial, oxidized Ag species (Ag δ+ ) with well-dispersed metallic Ag 0 nanoparticles. It achieves a CO Faradaic efficiency of 95.4% at −1.15 V vs. RHE and maintains 86% efficiency over 5 h at 6.38 mA cm −2 . In-situ ATR-SEIRAS spectra and kinetics reveal that Ag δ+ -related sites lower the barrier for *COOH formation, while adjacent Ag 0 domains facilitate *CO desorption. Excessive loading (5A/Z) promotes Ag aggregation and support decomposition, diminishing the critical Ag δ+ -O-Zn interface and performance. This study highlights interface coordination engineering as a key strategy for designing bifunctional ECO 2 RR catalysts.
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Nano-Micro Letters
·
2026
·
IF 38.5
Ming Chen,Qinglong Luo,Xiaolei Wang,Kaiyuan Shi
The increasing demand for high-performance energy devices has prompted the exploration of advanced electrolytic solutions for aqueous energy storage. Redox-enhanced Zn-ion capacitors (RZICs) overcome the limitations of conventional electrochemical capacitors by integrating redox-active molecules into the electrolyte, which enables higher energy density and expanded voltage windows. In this study, we developed organic dye-based colorimetric indicators for the fabrication of functional electrolytes in RZICs. The structural responsiveness of these dyes, driven by proton–electron transfer through electrochromic dynamics, allows real-time monitoring and optimization of the RZICs. The acid–base equilibrium of colorimetric indicators supports pH buffering, resulting in an extended lifespan of Zn||Zn cells up to 4,000 h. The conjugated aromatic structure of the indicators enhances their adsorption onto activated carbon, thereby minimizing the self-discharge in RZICs. Additionally, the phenol–quinone transformation increases the capacity of RZICs to 152.4 mAh g −1 within an optimized voltage window of 0.2–1.6 V, while promoting electrochemical kinetics and suppressing anode degradation. The results advance the design and customization of redox electrolytes with colorimetric properties for supercapacitive energy storage.
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高影响因子
ELECTROANALYSIS
·
2026
·Vol. 38
·期 2
·e70115
·
IF 2.6
Haixu Wang,Tingwei Zhang,Zhen Sun,Xiaonan Qi,Rongsong cao,Chuanlai Jiao
Efficient bifunctional electrocatalysts are crucial for the advancement of rechargeable zinc-air batteries (ZABs). In this article, we successfully synthesized a high-performance catalyst R-CoOOH@FeOOH through the oxygen evolution reaction (OER). Additionally, in situ Raman characterization results indicate that CoFe@NC-w undergo electrochemical reconstruction during the OER, leading to the formation of CoOOH and FeOOH species. This dynamic structural evolution is responsible for the enhanced OER activity of the catalyst. This transformation endowed the catalyst with exceptional OER activity. In addition, the catalyst exhibited exceptional performance in the oxygen reduction reaction, which shows a half-wave potential of 0.86 V vs. (RHE) reversible hydrogen electrode. When integrated into a ZAB, the catalyst delivers a low charging potential of 2.3 V at a high current density of 50 mA cm −2 , accompanied by an excellent long-term durability of 600 h. These findings offer viable strategies for the development of high-performance catalysts for ZAB.
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ENERGY & FUELS
·
2026
·
IF 6
Aoran Sun,Penghua Zhao,Lei Zhang,Zhenzhong Zhang,Baobin Wang,Qimeng Jiang,Chengshan Jiang,Ke Wan,Xiangzeng Xing,Guihua Yang,Jiachuan Chen
Rechargeable zinc-air batteries (ZABs) are attractive for energy storage, but their efficiency is limited by the slow kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Here, we report a bifunctional single-atom catalyst consisting of atomically dispersed iron anchored on N-doped two-dimensional (2D) carbon nanosheets (Fe-NCS-800) for high-performance ZABs. This material was sustainably synthesized through the graphene-oxide (GO)-induced hydrothermal carbonization of hemicellulose, followed by copyrolysis with NH4Cl and FeCl3 and subsequent acid leaching. The resulting architecture comprises interconnected porous nanosheets with a substantial surface area (1436 m2 g–1), facilitating mass transport and exposing abundant active sites. Advanced characterization techniques, including aberration-corrected scanning transmission electron microscopy (AC-STEM) and X-ray absorption spectroscopy, confirmed the dominant presence of FeN4 coordination sites. Under alkaline conditions, Fe-NCS-800 outperformed Pt/C in the ORR with a half-wave potential (E1/2) of 0.87 V vs RHE, while also exhibiting appreciable OER activity, resulting in a low bifunctional index (ΔE) of 0.83 V. When used as the air cathode in Zn-air batteries, it reached a peak power density of 215 mW cm–2 and a specific capacity of 766 mA h g–1, maintaining stable operation for over 400 h. These results show a sustainable strategy for developing efficient biomass-derived single-atom electrocatalysts for next-generation metal-air batteries.
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