Journal of Alloys and Compounds最新文献

{"title":"Effect of sintering temperature on microstructure and properties of Co-Cr alloys fabricated by vat photopolymerization 3D printing technology","authors":"Huifang Yin, Wanqing Zheng, Shiyu Wang, Wei Li, Jiqing Zhao, Fengshi Yin, Li Zhou","doi":"10.1016/j.jallcom.2025.178564","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178564","url":null,"abstract":"In this study, dense and evenly microstructured Co-Cr alloy blocks were prepared for the first time by degreasing and sintering after vat photopolymerization three-dimensional (3D) printing, and the effect of sintering temperature on the alloy microstructure was investigated. The results showed that the Co-Cr alloy sintered at 1180 °C had a low density with many pores in its microstructure. Increasing the sintering temperature from 1200 °C to 1240 °C improved the density and uniformity of the microstructure, and the grain size in the Co-Cr alloy increased with an increasing sintering temperature. Furthermore, the carbon content of the Co-Cr alloy increased after sintering because of the breakage of C-C and C-H bonds in the binder, which also changed the types of phases formed in the Co-Cr alloy. After sintering at 1180 °C, the phases in the Co-Cr alloy were mainly γ(Co-fcc), ε (Co-hcp), σ, μ, and M₂₃C₆ carbides. With an increase in the temperature and carbon content, the phases in the Co-Cr alloy transformed to γ (Co-fcc), M₂₃C₆, M₇C₃, and M₆C. Additionally, the hardness of the Co-Cr alloy after sintering at 1180 °C was 493.5 ± 19.6 HV, which is lower than that of the samples sintered at 1200 °C (549.1 ± 14.8 HV), 1220 °C (542 ± 13.5 HV), and 1240 °C (547 ± 14.3 HV), whereas it changed slightly from 1200 to 1240 °C. The results reveal that the microstructure and properties of Co-Cr alloy blocks prepared by vat photopolymerization 3D printing technology are strongly related to degreasing and sintering processes.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"67 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142937669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design of Functionally Graded Fe-based Composites from Iron to Iron Borides (Fe2B/FeB) by In-situ Powder Metallurgy and Evaluation of the Post-Thermal Shock Behavior","authors":"Mustafa Hamamcı, Fehmi Nair, Afşın Alper Cerit","doi":"10.1016/j.jallcom.2025.178545","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178545","url":null,"abstract":"This study investigates the microstructural and mechanical behavior of functionally graded iron-based composites (FGCs) when subjected to thermal shock cycles. The FGCs were fabricated by in-situ powder metallurgy (IPM) with three composition gradients and tested with a newly designed shock device. Despite progressively increasing hardness, 10-layer FGCs were successfully fabricated without any separation between the layers. The stable iron boride phases (Fe₂B/FeB) were effectively obtained in each layer dependent on the changing functional gradient. Iron borides also increased the interfacial bonding and hence the bonding ability between the layers. Moreover, in-situ borides assisted in decreasing the coefficient mismatch by balancing the thermal expansion coefficients between the iron matrix and B₄C. Thermal cracks of various sizes, particularly in the hard ceramic layer, progressed toward the sublayers as the thermal cycle increased. The ductile and tougher sublayers prevented the transverse propagation of the thermal crack. Increasing the functional gradient accelerated the thermal cracking and weakened the mechanical properties. The n5 gradient exhibited fracture damage after impact with the lowest force and energy. From an overall thermo-mechanical perspective, control of crack propagation by the ductile layers was a major advantage of the layered Fe/Fe₂B structures.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"95 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142937003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Isothermal Oxidation Behavior of As-deposited and HIPed Ti-48Al-2Cr-2Nb Alloy Processed using Electron Beam Powder Bed Fusion","authors":"Ravi C. Gurugubelli, Vamsi Krishna Balla, B. Rajasekaran, Prasad Krishna, Srikanth Bontha","doi":"10.1016/j.jallcom.2025.178568","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178568","url":null,"abstract":"This work focuses on oxidation behavior of Electron Beam Powder Bed Fusion (EB-PBF) processed Ti-48Al-2Cr-2Nb at elevated temperatures. Two different sample conditions were considered: As-deposited (AD) and post-processed by hot isostatic pressing (HIPed). The oxidation studies were carried out at 750°C, 850°C, and 950°C for 30, 60, and 100<!-- --> <!-- -->hours. The oxidized samples were analyzed for oxide layer growth and kinetics using Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray Spectroscopy (EDS), Raman Spectroscopy, and X-ray Diffraction (XRD) techniques. Results indicate that oxide layers are composed of alternative bands of TiO₂ and Al₂O₃. These oxide layers spalled at 850°C and 950°C after an exposure of 100<!-- --> <!-- -->h. The HIPed samples exhibited superior oxidation resistance when compared to AD samples, with an oxidation rate constant of 0.134 <em>mg</em>^<em>2</em> <em>cm</em>^<em>4</em> <em>h</em>^<em>-1</em> at 950°C (100<!-- --> <!-- -->h). The presence of homogenized microstructure with large nano-scale lamellar colonies aided in uniform oxide layer growth. EB-PBF samples exhibit fine fully lamellar microstructure due to the rapid heating and cooling cycles. Hence EB-PBF <em>(AD and HIPed)</em> samples exhibited better oxidation resistance when compared to conventionally processed Ti-48Al-2Cr-2Nb.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"12 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142936481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Precipitation on Geometrically Necessary Dislocations Distribution and Fracture Behavior in an Al-Cu-Li Alloy","authors":"Xianghui Zhu, Xusheng Yang, Weijiu Huang, Yongjie Liu, Weiyi Qiu, Xin Wang, Mengdi Li","doi":"10.1016/j.jallcom.2025.178561","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178561","url":null,"abstract":"This study investigates the mesoscale plastic deformation behavior and factors affecting fracture toughness in Al-Cu-Li alloys with a medium Li/Cu ratio using high-resolution electron backscatter diffraction (HR-EBSD) and transmission electron microscopy (TEM). It is found that fine δ'/GPⅠ/δ' composite precipitates are readily sheared, leading to dislocation planar slip and pile-up at the grain boundaries. Conversely, T₁ precipitates inhibit planar slip and promote cross-slip, resulting in increased geometrically necessary dislocation (GND) storage capacity in samples exhibiting wavy slip. Brittle intergranular fracture is not solely caused by dislocation planar slip due to composite precipitates; rather, it is significantly influenced by interactions with intermetallic compounds at the grain boundaries. For samples dominated by T₁ precipitates, Cu-rich precipitates along grain boundaries are primarily responsible for decreasing fracture toughness, with the negative effect of coarse grain boundary precipitates being more detrimental than that of dislocation planar slip. This research provides valuable insights into the mechanical properties of Al-Cu-Li alloys at the mesoscale level.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"23 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142936486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermoluminescence Study of Nd3+ Doped Lanthanum Tri-Borate Phosphor","authors":"M. Oglakci, S. Akça-Özalp, Z.G. Portakal-Uçar, V. Correcher, J.F. Benavente, M. Sonsuz, N. Can, Y.Z. Halefoglu, M. Topaksu","doi":"10.1016/j.jallcom.2025.178570","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178570","url":null,"abstract":"This study investigates the thermoluminescence (TL) properties and trapping parameters of Nd³⁺ doped lanthanum tri-borate (LaB₃O₆) phosphors, synthesized through a low-temperature combustion method. The synthesized samples, doped with varying concentrations of Nd³⁺ (0.25%, 0.5%, 1%, 2%, 3%, and 5% by mass), were characterized using powder X-ray diffraction (XRD) to confirm their crystalline structure and matched LaB₃O₆ reference pattern in ICSD. The TL glow peaks of Nd³⁺ doped LaB₃O₆ subjected to 5<!-- --> <!-- -->Gy beta radiation emerged notably at 75˚C, 125˚C and 257˚C, accompanied by shoulder above 320˚C. The optimal Nd³⁺ doping concentration for TL efficiency was 0.25%. TL response of LaB₃O₆:Nd³⁺ (0.25%) against doses ranging from 0.1<!-- --> <!-- -->Gy to 750<!-- --> <!-- -->Gy indicated excellent linear behavior up to 20<!-- --> <!-- -->Gy (<em>b</em>=1.003, R²= 0.999). Ten cycles of reusability testing showed that the deviations did not exceed 2% for either the maximum TL intensity (<em>I</em>_m) or peak area variation. The TL signal faded by about 13% in 26 days of storage time. Various heating rates (VHR), <em>T</em>_m-<em>T</em>_stop, initial rise (IR), and computerized glow curve deconvolution (CGCD) methods were employed to ascertain the individual peak numbers and kinetic parameters of LaB₃O₆:0.25%Nd³⁺ sample. The CGCD result revealed that it is possible to distinguish five overlapped groups of components peaked at 249, 272, 303, 327 and 354<!-- --> ^oC.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"133 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142936477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tunable N-doped Carbon Dots/SnO2 Interface as a Stable Artificial Solid Electrolyte Interphase for High-Performance Aqueous Zinc-Ion Batteries","authors":"Mohan Gopalakrishnan, Myo Thandar Hlaing, Thirumoorthy Kulandaivel, Wathanyu Kao-ian, Mohammad Etesami, Wei-Ren Liu, Mai Thanh Nguyen, Tetsu Yonezawa, Wanwisa Limphirat, Soorathep Kheawhom","doi":"10.1016/j.jallcom.2025.178521","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178521","url":null,"abstract":"Poor stability of zinc (Zn) anode hinders the use of aqueous zinc-ion batteries (AZIBs) for large-scale energy storage. Here, we report an effective artificial solid electrolyte interphase (ASEI) using N-doped carbon dots (CDs) and SnO₂ to stabilize Zn anodes. By optimizing the CDs/SnO₂ ratio, we can synthesize porous composites to construct \"bayberry\" and flower-like morphologies. The N-doped CDs/SnO₂ anode creates surface dipoles and changes in charge distribution, allowing Zn ions to move to nitrogen functionalized sites with reduced adsorption barriers. Furthermore, hydroxyl oxygen boosts the surface's hydrophilicity, resulting in stronger adhesion to the Zn anode and better ion accessibility. This generates dense nucleation sites for uniform Zn deposition. The CDs/SnO₂@Zn electrode achieves a low nucleation potential of 47<!-- --> <!-- -->mV and maintains 99.6% coulombic efficiency (CE) over 1000 cycles at 2<!-- --> <!-- -->mA<!-- --> <!-- -->cm^-2. In the symmetrical cells, the modified Zn anode exhibits stable cycling for 1,200<!-- --> <!-- -->h at 1 mAh cm^-2. A full cell with CDs/SnO₂@Zn anode and MnO₂ cathode retains 96.6% capacity after 800<!-- --> <!-- -->h. This study introduces a promising strategy for stabilizing Zn anodes and offers valuable insights for designing dendrite-free electrodes in next-generation AZIBs.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"22 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142936957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research progress and prospects of Ce-containing NdFeB permanent magnets","authors":"Xiheng Shao, Xiaoqing Zhou, Shuhan Liang, Chao Yang, Yongsheng Que, Bing Guo, Huangping Bao, Guocai Tang, Xiangling Yan, Jinsheng Bao, Laishun Qin, Kangying Shu, Da Chen, Dong-Liang Peng","doi":"10.1016/j.jallcom.2025.178567","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178567","url":null,"abstract":"NdFeB magnets are permanent magnetic materials based on the intermetallic compound Nd₂Fe₁₄B, which are widely used due to their excellent magnetic properties. With the rapid advancement of the NdFeB magnet industry, the consumption of crucial rare earth elements such as Pr, Nd, Dy, and Tb has significantly increased, resulting in escalating raw material prices. Conversely, the element Ce accumulates in large quantities and remains underutilized. To mitigate the production costs associated with NdFeB magnets and promote a more balanced utilization of rare earth resources, considerable attention has been directed towards Ce-containing NdFeB ((Ce,Nd)-Fe-B) magnets in recent years. This review article summarizes the research progress on (Ce, Nd)-Fe-B magnets. Firstly, the distinctions in phase composition and intrinsic properties between CeFeB and NdFeB magnets are presented, and the coercivity mechanisms of (Ce, Nd)-Fe-B magnets are then explored. Subsequently, the influences of factors such as Ce content, addition of metallic elements, and heat treatment on the magnetic properties and microstructure of rapidly-quenched and sintered (Ce, Nd)-Fe-B magnets are discussed. Meanwhile, the grain boundary diffusion processes of (Ce, Nd)-Fe-B magnets are scrutinized. Finally, the challenges faced by (Ce, Nd)-Fe-B magnets and the corresponding solutions are proposed, and the prospects and further developments in this exciting field of (Ce,Nd)-Fe-B magnets are also suggested.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"15 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142936480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic improvement of ultra-high strength and ductility of Cu-15Ni-8Sn alloy induced by multi-pass rotary swaging and aging treatment","authors":"Yanjun Zhou, Kaixuan Jiang, Shaodan Yang, Ran Yang, Pengfei Yue, Fei Zhou, Wenhao Yang, Juan Du, Huiwen Guo, Xiaowen Peng, Jingzhao Yang, Kexing Song","doi":"10.1016/j.jallcom.2025.178569","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178569","url":null,"abstract":"The Cu-15Ni-8Sn alloy can achieve ultra-high strength through heat treatment processes, but the significant reduction in its ductility limits its wider applications. How to synergistically enhance the strength and ductility of this alloy is a hot research topic. In this study, the industrial Cu-15Ni-8Sn alloy was taken as the research object, and the changes in alloy grain characteristics and mechanical properties under different cumulative deformations were compared by multi-pass rotary swaging deformation of the solution-state Cu-15Ni-8Sn alloy followed by aging heat treatment with different holding times. The evolution of phase structures in the rotary-swaged Cu-15Ni-8Sn alloy during the aging process was investigated. The synergy mechanism of rotary swaging and aging process on the strength and ductility of the alloy was revealed. The results showed that with the increase of rotary swaging deformation, the Cu-15Ni-8Sn alloy grains gradually elongates until they tended to be fibrous, and the grain texture changed from random distribution to &lt;111&gt; and &lt;100&gt; distribution. Rotary swaging deformation promotes the precipitation of the D0₂₂ ordered phase. After 75% rotary swaging deformation and aging treatment at 400°C for 60<!-- --> <!-- -->minutes, the ultimate tensile strength and elongation of the Cu-15Ni-8Sn alloy reaches 1405<!-- --> <!-- -->MPa and 6.1%, respectively. The characteristics of high strain rate and large cumulative deformation of rotary swaging activate more slip systems and twin systems, improve the strengthening efficiency, and are conducive to uniform deformation and plasticity of metals. Rotary swaging deformation promotes the formation of D0₂₂ ordered phase during aging, and the interaction between nanoscale precipitates and dislocations produces a significant precipitation strengthening effect.Based on the above synergistic effects, the results of this paper realize the simultaneous improvement of strength and plasticity of Cu-15Ni-8Sn alloy. This optimization of comprehensive mechanical properties makes the alloy very suitable for use in complex environments requiring high strength and good machining capability.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"10 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142936492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Amorphous/crystalline NiZr heterojunction nanorods for alkaline hydrogen evolution reaction prepared by magnetron sputtering","authors":"Jinsen Tian, Junhao Qin, Hao Zhang, Mingwei Tang, Jing Wu, Jiahua Zhu, Jun Shen","doi":"10.1016/j.jallcom.2025.178575","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178575","url":null,"abstract":"Design of low-cost hydrogen evolution reaction (HER) electrocatalysts with high efficiency is important for the application of hydrogen. In this work, magnetron sputtering was utilized to prepare amorphous, crystalline and amorphous/crystalline (a/c) NiZr heterostructure nanorods catalysts. With increasing sputtering power of Zr, the deposited films transformed from crystalline to a/c heterojunction and amorphous structure. Compared with its amorphous and crystalline counterparts, the a/c heterojunction presented superior performance and stability in alkaline solution. The overpotential to reach 10<!-- --> <!-- -->mA<!-- --> <!-- -->cm^-2 and Tafel slope is low as 92<!-- --> <!-- -->mV and 66<!-- --> <!-- -->mV dec^-1, respectively. This is mainly due to the high intrinsic activity and electron transfer rate caused by the nanorods and a/c heterojunction structure. Density functional theory (DFT) calculations confirmed that compared with crystalline, both the water dissociation energy and hydrogen absorption energy can be lowered by forming a/c heterostructure. This work presents a method to prepare an efficient a/c heterojunction electrocatalyst via modulating magnetron sputtering conditions.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"48 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142937002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ratiometric electrochemical sensor based on methylene blue-functionalized Ti3C2Tx MXene/Pt nanoparticle composites for reliable detection of carbendazim","authors":"Ying Wang, Xiaohong Liu, Hao Tan, Yiming Yang, Xi Wang, Chengxi Zhu","doi":"10.1016/j.jallcom.2025.178538","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178538","url":null,"abstract":"Rapid and reliable detection of pesticide residues is critical in public health, food safety and environmental control. Herein, a novel ratiometric electrochemical sensor based on methylene blue-functionalized Ti₃C₂T_x MXene/Pt nanoparticle composites (MXene@MB/PtNPs) was developed for reliable detection of carbendazim (CBZ). The MXene@MB/PtNPs composites were synthesized by a mild and simple room-temperature approach. Here, the decoration of Pt nanoparticles can enhance the conductivity and catalytic activity of the composites. The functional electroactive molecule methylene blue (MB) implanted in MXene could not only hinder the aggregation of MXene layers and promote the electron transfer activity of the materials, but also serve as an internal reference probe to form a ratiometric sensing strategy. The obtained MXene@MB/PtNPs composites showed a superior electrochemical catalytic performance toward CBZ. Based on the ratiometric signal of the response current to the reference current (I_CBZ/I_MB), the developed sensor possessed a wide linear range of 10<!-- --> <!-- -->ng<!-- --> <!-- -->mL^-1 to 30<!-- --> <!-- -->μg<!-- --> <!-- -->mL^-1 with a low LOD of 4.2<!-- --> <!-- -->ng<!-- --> <!-- -->mL^-1. Compared with single-signal detection, the developed ratiometric electrochemical sensor could offer more accurate and reliable results, and exhibited favorable selectivity, reproducibility and long-term stability, and great application potential in pesticide residue detection in agricultural products.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"83 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142937613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}