ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Shenghai Zhou,Na Liang,You Zhang,Xiangxiu Liu,Dongxu Ge,Hongbo Xu
Aqueous zinc-ion hybrid supercapacitors (ZHSCs) are emerging as promising energy storage devices due to their safety and low cost. The development of cathode materials with superior performance has become a focal point in ZHSC research. Herein, N, S co-doped ordered mesoporous carbons (N, S-OMC) were synthesized via a one-step impregnation of pyrrole and 2-thiophenemethanol into the mesopores of silica templates. The effect of the pyrrole-to-2-thiophenemethanol feed ratio on the microstructure and electrochemical performance of N, S-OMC was examined. The optimal electrochemical performance of N, S-OMC-25 can be attributed to the synergistic effects of well-controlled N and S doping levels, high content of pyridine N, numerous defect sites, good conductivity, ordered mesoporous channels, and a large surface area, all of which provide numerous accessible active sites for charge storage and enhanced electrochemical kinetics in ZHSCs. The N, S-OMC-25-based ZHSCs device demonstrated a high specific capacity (269 ± 1 F/g), high energy density (82 Wh/kg), and outstanding cyclic stability, retaining 95 % capacity after 10,000 cycles in 1 M ZnSO 4 and 95 % after 60,000 cycles in 3 M Zn(CF 3 SO 3 ) 2 . This work simplifies the preparation of N, S-OMC via the template method and introduces N, S-OMC carbon materials for use in aqueous ZHSCs devices.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Xiaoyun Qin,Qinyuan Lou,Yiying Ling,Zhihao Zheng,Xiaomei Qin,Fenghua Chen,Jianbo Zhao,Yanghai Gui,Huishi Guo,Chao Zhao,Zhen Zhang
In the process of industrial wastewater discharge, water pollution remains a pressing challenge, with heavy metal pollution being the most critical issue. Electrochemical sensors offer advantages such as rapid response time, ease of integration with microprocessors for on-site testing. This paper proposes the use of self-assembled polystyrene (PS) microspheres as electrode modification materials, leveraging their ordered assembly structure to reduce signal differences between electrodes from different batches, thereby preparing an electrochemical sensor with good repeatability for the determination of heavy metal ions (HMIs) Cu(II), Zn(II), and Pb(II). The experiment employed square wave anodic stripping voltammetry (SWASV) to collect the stripping currents. The designed sensor exhibited sensitivities of 0.905 μA/μM, 0.408 μA/μM, and 0.264 μA/μM, as well as limits of detection (LODs) of 0.13 μM, 0.25 μM, and 0.29 μM (S/N = 3) for Cu(II), Zn(II), and Pb(II), respectively. To enhance detection accuracy, peak current, full stripping current, and feature current were respectively input combined with machine learning (ML) algorithms to construct prediction models to evaluate the performance of the sensor. The results demonstrated that the constructed RF-Feature model significantly improved detection accuracy. It demonstrated excellent reliability, with R 2 values of 0.9952, 0.9973, and 0.9976, and root mean square error (RMSE) values of 0.6580 μM, 0.5838 μM, and 0.8164 μM, for Cu(II), Zn(II), and Pb(II), respectively. The detection range was 1 μM to 70 μM. Furthermore, the effectiveness of the sensor in practical applications was validated by detection in real wastewater samples from industrial and hospital emissions. These results were validated using an inductively coupled plasma mass spectrometry (ICP-MS) method.
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Yujie Fu,Jiagui You,Quanhuan Yao,Cong Tian,Lingyu Wang,Peiyang Shi,Guilong Yan,Liujun Cao
Aqueous aluminum-ion batteries (AAIBs) hold significant promise for scalable grid energy storage because aluminum (Al) anodes offer advantages such as abundant reserves in the earth’s crust, low cost, high capacity, and environmental friendliness. However, the widespread adoption of AAIBs is currently limited by aluminum trifluoromethanesulfonate (Al(TOF)3) salt-based aqueous electrolytes, which are both expensive and environmentally problematic. To address this limitation, we introduce a novel hydrated eutectic electrolyte (HEE) composed of hydrated aluminum sulfate (Al2(SO4)3 · 18H2O) as the solute and ethylene glycol (EG) as the solvent, notably costing approximately 1/15th the price of Al(TOF)3. This HEE leverages strong coordination between EG molecules and Al3+ ions, facilitated by hydrogen bonding and solvation effects, to promote more uniform aluminum deposition and suppress dendrite formation on zinc substrates compared to conventional aqueous Al2(SO4)3 electrolytes. Consequently, the formation of anionic/cationic complex species reduces interfacial impedance, enabling a highly reversible aluminum plating/stripping process characterized by low overpotentials (∼130 mV) and an extended cycle life of up to 2000 h. Furthermore, when incorporated into a full cell using a Zn–Al anode and a phosphorus-doped V2O5 (P–V2O5) cathode, this HEE demonstrates excellent rate capability and cycling stability. This work provides new opportunities for constructing high-performance and low-cost AAIBs for practical applications.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Jing Ma,Yaoyao Linghu,Kai Yuan,Rui Zhou,Hui Gao,Peihua Zhao,Shaohui Guo,Huiqi Wang,Yongping Qu,Chao Shen,Keyu Xie
Aqueous Zn–I 2 battery (AZIBs) has attracted wide attention with its low cost, high capacity, low reduction potential and high safety. Iodine-based materials have the advantages of environmental protection, excellent cycle stability and low cost. However, there are some challenges, such as poor conductivity, slow kinetics and solubility of iodine species. Therefore, an innovative approach is proposed that exhibits excellent electrical conductivity and effectively anchors iodine species through physical trap with microporous structure and strong chemical adsorption with the synergistic effects of triazine and secondary amine-N. The dynamic transfer mechanism between them enhances catalytic conversion of iodine. The melamine-formaldehyde polymer and MXenes (Ti 3 C 2 T x ) composite (NC@TC) is prepared as host material of iodine by the electrostatic self-assembly. DFT calculation indicates thermodynamically favorable adsorption of iodine species, significantly accelerating the iodine redox reaction kinetics. Specifically, it reaches a discharge capacity of 183.07 mAh g −1 at 1.0C ever after 200 cycles (1.0C = 211 mAh g −1 ). Moreover, it also has excellent cycling performance, maintaining 81.33 % capacity after 5000 cycles. Additionally, NC@TC cathodes maintain good electrochemical performance under high current conditions and pouch cell structures. This work highlights the potential of MXene-based composites as promising iodine host materials for advanced Zn–I 2 batteries.
✓ 已验证
产品关联
DOI
高影响因子
SOLAR ENERGY
·
2021
·
IF 5.742
Ting Wang,Jiayong Zhang,Bin Yao,Yongfeng Li,Zhanhui Ding,Chunkai Wang,Jia Liu
Five types of Cu 2 ZnSn(S,Se) 4 (CZTSSe) films were fabricated by selenization of Cu 2 ZnSnS 4 (CZTS) precursor films preparing through Cu-Zn-Sn-S precursor solutions with nominal Cu + /(Cu + +Cu 2+ ) ratio of 0, 0.2, 0.4, 0.8 and 1. Five types of CZTSSe solar cells were prepared by using the five types of CZTSSe films as absorbers, respectively. The crystal quality and phase composition of the CZTS and CZTSSe films were characterized by XRD, Raman and SEM, and the photovoltaic performance for the CZTSSe solar cells were measured by J-V and EQE. It is found that the CZTS film consists of kesterite CZTS when the ratio is 0 and of kesterite CZTS together with a small amount of SnS when the ratio is 0.2 to 1. All of the CZTSSe films are comprised of kesterite CZTSSe and a small amount of Zn(S,Se). The crystal quality and lattice constants of the kesterite CZTSSe increase with increasing the ratio, while the amount of Zn(S,Se) decreases with increasing the ratio and almost to zero as the ratio is 1. The power conversion efficiency ( PCE ) of the CZTSSe solar cells increases from 5.47% to 8.43% as the ratio increases from 0 to 1, which is due to improvement in short-circuit current density ( J sc ) and filling factor ( FF ) and decrease in open circuit voltage deficit ( V oc , def ). The influence mechanism of the ratio on the PCE is suggested by analyzing effect of the ratio on electrical parameters of the CZTSSe solar cells.
✓ 已验证
DOI
高影响因子
Journal of Advanced Research
·
2026
·
IF 17.1
Sumei Ling,Yang Xu,ZhouJie Xu,Xiaoli Li,Linfang Lu,Menghan Sun,Wenjun Yang,Yuxuan Liu,Jun Yuan,Shihua Wang
Introduction Sulfamethazine (SM2) antibiotic residues in food pose a significant risk to human health, including pathogenic bacterial resistance, allergic reactions, and carcinogenicity. Current lateral flow immunoassay (LFIA) typically employing colloidal gold (AuNP) as a signal reporter exhibits unsatisfactory sensitivity. Recently, metal–organic frameworks (MOFs) nanomaterial as a supporting matrix for loading nanoparticles provides a powerful tool to improve the performance of LFIA. Objectives This study aims to develop an enhanced immunosensor based on antibody labeled Au/Ir@Cu/Zn-MOF signal amplification nano-composite for sensitive and point-of-care monitoring of SM2 antibiotic residues. Methods Firstly, the highly specific monoclonal antibody (mAb) against SM2 belonging to the IgG1 subclass was screened. Subsequently, the Au/Ir@Cu/Zn-MOF nanocomposite was synthesized by incorporating Au/Ir bimetallic nanoparticles into the previously prepared Cu/Zn-MOF composite. The anti-SM2 mAb was then conjugated to Au/Ir@Cu/Zn-MOF nanocomposite via a co-precipitation method to fabricate the mAb-Au/Ir@Cu/Zn-MOF probe. Finally, a lateral flow immunoassay was constructed for the detection of SM2 residues. Results The vLOD the Au/Ir@Cu/Zn-MOF-based LFIA for SM2 detection was approximately 2.5 ng/mL, which was at least 600 times greater than that of the AuNP-based LFIA (with the vLOD of 1563 ng/mL). Average recovery rates were 80.08–90.8% in milk sample, 88–89.3% in eel sample and 85.3–95.2% in pork sample, respectively. Conclusion The Au/Ir@Cu/Zn-MOF nanocomposite utilized as signal amplification probe demonstrated remarkable sensitivity for the detection of SM2. The developed Au/Ir@Cu/Zn-MOF-based LFIA exhibits significant potential for the rapid and sensitive detection of contaminants in environmental monitoring and food safety.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CATALYSIS
·
2026
·
IF 6.5
Fan Shao,Fengzhi Guo,Tianyu Bai,Rongrong Li,Shixuan Guo,Jinxiao Sun,Yasong Zhou,Wenbin Huang,Lu Gong,Gang Wang,Qiang Wei
Improving the performance of hydroisomerization catalysts for jet fuel production remains a considerable challenge, due to the difficulty in precisely controlling the balance between metal and acid functions. Although zinc modification offers a promising strategy to enhance the synergy, the underlying mechanistic understanding of Zn-induced framework repair and reconstruction remains unclear, blocking the rational design of bifunctional catalysts. In this work, A series of Zn-modified SAPO-11 zeolites with tunable ZnO/Al 2 O 3 ratios were synthesized via in-situ doping technique. Characterization results revealed that Zn substitution for Al altered the silicon incorporation environment. The formation of Si-O-Zn bonds (NH 3 adsorption energy = -0.99 eV) indicated weaker acidity than Si-O-Al bonds (−1.44 eV). At ZnO/Al 2 O 3 = 0.5% doping, isolated P-O-Zn bonds promoted the dispersion and dissolution of large silicon islands (Si(4Si)), increasing weak Brønsted acid sites. At higher Zn doping, the mechanism shifted inducing Si redistribution and forming medium-strong Brønsted acid sites. Namely, a dual role of Zn was identified as framework repair at low loading and framework reconstruction at high loading. The weakened and dispersed acidity enhanced Pt dispersion and reducibility, enabling Pt/(0.75ZnSAPO-11 + ASA) catalyst to deliver the highest iso-C 22 yield (30.9%) and selectivity (58.7%), with double-branched isomer yield (10.8%) and selectivity (20.6%). This work highlights the underlying mechanism of Zn modification in catalyst framework, and demonstrates its implications for enhancing the industrial application of Zn-modified catalysts in Fischer-Tropsch wax upgrading and jet fuel cold-flow performance.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.3
Yuxiang Ou,Xiangjian Liao,Shiquan Chen,Xingyu Liu,Rui Li,Yonglin Chen,Yifei Wang,Zixuan Wu,Aiping Huang,Xianzhe Liu,Jianyi Luo
The non-invasive detection of acetone in exhaled breath via gas sensors offers a simple and efficient strategy for the auxiliary diagnosis of diabetes. Spinel ferrites have emerged as promising candidates for sub-ppm acetone detection due to their outstanding physicochemical and electronic properties. Despite the development of diverse spinel ferrites, the intrinsic correlation between cation type (i.e., M 2 + in the MFe 2 O 4 structure) and these materials’ gas-sensing properties has not been systematically elucidated. In this study, spinel ferrites with different metal ions (MFe 2 O 4 , M = Fe, Co, Ni and Zn) were synthesized via a facile one-step solvothermal method. The effects of cation type on the crystal structure, microstructural features, and acetone-sensing performance of these ferrites were systematically studied. It demonstrates that the cation type exerts a significant influence on the grain size, morphological and microstructural characteristics, and gas-sensing kinetics of these ferrites, thereby regulating their overall acetone-sensing performance. Notably, the NiFe 2 O 4 sensor exhibits superior acetone-sensing properties toward 1.0 ppm acetone at its optimal operating temperature, including a high response value, a low detection limit, excellent humidity tolerance, outstanding selectivity, and long-term stability. Furthermore, the NiFe 2 O 4 sensor can effectively distinguish acetone concentration differences in exhaled breath between healthy individuals and diabetic patients (using simulated samples). These results clarify the intrinsic correlation between cation type and acetone-sensing performance of spinel ferrites, providing practical guidance for the rational design of high-performance acetone-sensing materials and promoting their application in breath-based auxiliary diagnosis of diabetes.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Lei Meng,Bin Yao,Yongfeng Li,Zhanhui Ding,Zhenyu Xiao,Kaisi Liu,Gang Wang
The back contact adhesion is the important factor of the microstructural performance which can determine the optoelectronic properties of the kesterite-based solar cells. Here, we present a rational and effective strategy to significantly enhance the back contact adhesion of Cu 2 (Zn,Cd)Sn(S,Se) 4 (CZCTSSe) absorber layers by insetting the appropriate thickness carbon-doping CZCTS thin films . We chose the oleylamine as the carbon-doping reagent which can generate a small amount of carbon in the annealing process . The suitable thickness carbon-doping CZCTS films can significantly change the crystal growth mechanism of CZCTSSe absorber layers, and eliminate the holes in the back contact. The efficiency of CZCTSSe solar cells fabricated by insetting the appropriate thickness carbon-doping CZCTS films is above 7%, and shows the excellent repeatability and long-term air stability compared with the control devices.
研究领域:
材料科学
·
光伏技术
·
半导体物理
·
表面与界面工程
·
无机功能材料
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Yue-Ming Li,Wen-Hao Li,Wan-Yue Diao,Fang-Yu Tao,Xing-Long Wu,Xiao-Ying Zhang,Jing-Ping Zhang
Zinc metal has been naturally considered as the most anticipated anode material for zinc-ion batteries (ZIBs), given the benefits of large volume specific capacity, low electrode potential, and inexpensive cost. However, the growth of zinc dendrites and the corrosion of hydrogen evolution during the Zn2+ ion deposition process are the bottlenecks restricting the large-scale application of zinc metal. Herein, we report the modification of zinc anodes by utilizing a ball-milling clay precipitate (designated as BMC, consisting of the unetched MAX phase and the Ti3C2Tx phase) to construct a three-dimensional (3D) framework on the surface of zinc foil (Zn@BMC). Different from the close stacking of conventionally prepared MXene sheets after film formation, the BMC coating firmly adheres to the zinc surface through the binder. The abundant internal space relieves the stress during the volume change of the Zn metal and uniformizes the Zn2+ ion flux. Consequently, Zn@BMC not only achieves a stable long cycle (2000 h, 0.5 mA h cm–2) but also inhibits the side reaction of hydrogen evolution by physically separating the electrolyte and the zinc metal anode. We reckon that our research will aid in clarifying the design principles governing the interface of the zinc metal anode in ZIBs.
研究领域:
材料科学
·
电化学
·
储能
·
电池技术
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Taotao Lv,Mengran Lou,Chunmei Xu,Yang Wang,Ruiying Wang,Hongtao Liu,Rui Liu,Xia Kong
The Cu/Fe-N@PCFs catalyst is prepared by electrospinning and pyrolysis. • Cu active species synergize with Fe-N@PCFs to boost the catalytic performance. • Cu/Fe-N@PCFs shows excellent ORR/OER activity with a low ΔE of 0.73 V. • Flexible Cu/Fe-N@PCFs achieves high peak power densities in ZAB and FZAB. The key to advancing Zn-air batteries (ZABs) and flexible Zn-air batteries (FZABs) lies in creating electrocatalysts with flexibility, porosity, high efficiency, and stability. Herein, Cu/Fe-N@PCFs is prepared by electrospinning and pyrolysis. Fe-ZIF-8 serves as a carbon and nitrogen source dispersing Fe sites, and promotes the formation of microporous structures during pyrolysis together with NaCl. Cu species are introduced onto the surface of Fe-N@PCFs to interact with Fe-N x sites and alleviate the Fenton-like effect, synergistically enhancing the bifunctional oxygen electrocatalytic performance toward oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The fibrous structure improves the peak power density of ZAB and FZAB. The Cu/Fe-N@PCFs exhibits an ORR half-wave potential (E 1/2 ) of 0.865 V (vs. 0.838 V for Pt/C) and an OER overpotential of 370 mV (vs. 305 mV for RuO 2 ) at 10 mA cm −2 . The ZAB achieves a peak power density of 278.2 mW cm −2 (vs. 145.5 mW cm −2 for Pt/C + RuO 2 ) and durability of 190 h. The self-supporting Cu/Fe-N@PCFs is assembled as FZAB, delivering a peak power density of 82.4 mW cm −2 (vs. 16.4 mW cm −2 for Pt/C + RuO 2 ) and durability of 17 h. This study provides significant perspectives on constructing flexible catalysts, potentially advancing the development of ZABs and FZABs. Download: Download high-res image (266KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Ningyu Guo,Yingqiang Zhao,Peng Zhao,Qinxing Xie
A Zn-Co bimetallic ZIF-derived N-doped porous carbon with CNT network is constructed. • Acid etching tailors hierarchical porosity and exposes catalytic metal sites. • The conductive CNT framework accelerates electron/ion transport. • Strong polysulfide immobilization and rapid redox kinetics are achieved. • High capacity and stable cycling are maintained under lean electrolyte. Efficient sulfur hosts with strong polysulfide confinement and fast redox kinetics are essential for high-performance lithium-sulfur batteries. Herein, a Zn-Co bimetallic ZIF-derived multifunctional porous carbon with in-situ grown carbon nanotubes (CNTs) is constructed via controlled carbonization followed by acid etching. The resulting ZIFCA material features a hierarchical porous architecture with Zn/N-derived polar sites, a conductive CNT network, and Co-based catalytic nanodomains coupled with defect-rich carbon interfaces. These structural characteristics synergistically enhance polysulfide adsorption and accelerate sulfur redox conversion, thereby suppressing the shuttle effect and improving reaction kinetics. As a sulfur host, ZIFCA/S delivers a reversible capacity of 1035 mAh g −1 after 200 cycles at 1.0C, and retains around 700 mAh g −1 at 5C. Notably, under lean electrolyte conditions (E/S = 5.7 μL mg −1 ), ZIFCA/S maintains a capacity of 903 mAh g −1 after 110 cycles with an areal capacity of about 2.79 mAh cm −2 . This work highlights the effectiveness of integrating conductive and catalytic functionalities in ZIF-derived carbon frameworks for advanced Li-S batteries. Download: Download high-res image (162KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）