Carbon Letters最新文献_第3页

Development and evaluation of machine-learned interatomic potentials for carbon nanotubes for molecular dynamics simulations 用于分子动力学模拟的碳纳米管的机器学习原子间势的发展和评价

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2025-02-09 DOI: 10.1007/s42823-025-00867-w

Vijay Choyal, Saurabh Mishra, Nitin Luhadiya, S. I. Kundalwal

{"title":"Development and evaluation of machine-learned interatomic potentials for carbon nanotubes for molecular dynamics simulations","authors":"Vijay Choyal, Saurabh Mishra, Nitin Luhadiya, S. I. Kundalwal","doi":"10.1007/s42823-025-00867-w","DOIUrl":"10.1007/s42823-025-00867-w","url":null,"abstract":"<div><p>The prime objective of this computational study was to develop a highly accurate potential for the use of molecular dynamics (MD) simulations of carbon nanotubes (CNTs). This potential was generated using ab initio MD (AIMD) simulations based on density functional theory (DFT). Subsequently, we constructed machine-learned interatomic potentials (MLIPs) based on moment tensor potential (MTP) descriptors using AIMD trajectories as training data. The performance of the developed MLIPs was evaluated by conducting the MD simulations of the stress–strain responses of single-walled CNTs (SWCNTs) and defected SWCNTs (D-SWCNTs) under tensile loading. Furthermore, this work includes extensive MLIP-based MD simulations to examine the influence of diameter and chirality, temperature, and defect concentration on the fracture characteristics and Young’s modulus of SWCNTs. The findings demonstrate the computational reliability and transferability of the MLIPs in predicting the mechanical properties of SWCNTs through MD simulations performed over a temperature range of 1 K to 2000 K. The observed stiffnesses correspond to Young’s modulus ranging from 1.61–0.53 TPa with a mean value of 0.936 TPa for different SWCNTs with diameters ranging from 1.1–2.89 nm and temperatures spanning from 1 to 2000 K, exhibiting a noticeable dependence on chirality.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 3","pages":"1311 - 1326"},"PeriodicalIF":5.5,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MWCNT-OH/graphene composite sensor for nonenzymatic detection of paraoxon-ethyl in agricultural samples MWCNT-OH/石墨烯复合传感器非酶检测农业样品中对氧磷乙基

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2025-02-05 DOI: 10.1007/s42823-025-00868-9

Budi Riza Putra, Elda Nurwidayanti, Siti Fadilah, Munawar Khalil, Erus Rustami, Wulan Tri Wahyuni

{"title":"MWCNT-OH/graphene composite sensor for nonenzymatic detection of paraoxon-ethyl in agricultural samples","authors":"Budi Riza Putra, Elda Nurwidayanti, Siti Fadilah, Munawar Khalil, Erus Rustami, Wulan Tri Wahyuni","doi":"10.1007/s42823-025-00868-9","DOIUrl":"10.1007/s42823-025-00868-9","url":null,"abstract":"<div><p>In this study, we developed electrochemical sensors based on the composite of hydroxylated multiwalled carbon nanotubes (MWCNT-OH) and graphene for paraoxon-ethyl detection as pesticide residues in agricultural products. Chemical treatment was employed to produce MWCNT-OH from pristine MWCNT and its composite with graphene was subsequently characterized using FTIR, Raman spectroscopy, FESEM-EDX, TEM, and XPS techniques. The MWCNT-OH/graphene composite was employed as an electrode modifier on the glassy carbon electrode (GCE) surface, and its electroanalytical performances were studied using differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS) techniques. It was revealed the optimum composition ratio between MWCNT-OH and graphene was 2:8, for paraoxon-ethyl detection at pH 7. This could be attributed to the enhanced electrocatalytic activity in the MWCNT-OH/graphene composite which displayed a linear range of paraoxon-ethyl concentration as 0.1–100 µM with a lower detection limit of 10 nM and a good sensitivity of 1.60 µA µM cm<sup>−2</sup>. In addition, the proposed sensor shows good reproducibility, stability, and selectivity in the presence of 10 different interfering compounds including other pesticides. Ultimately, this proposed sensor was tested to determine the paraoxon-ethyl concentrations in green apples and cabbage as samples of agricultural products. The obtained concentrations of paraoxon-ethyl from this proposed sensor show no significant difference with standard spectrophotometric techniques suggesting this sensing platform might be further developed as a rapid detection of pesticide residue in agricultural products.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 3","pages":"1291 - 1310"},"PeriodicalIF":5.5,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of conductive cyclized polyacrylonitrile content to enhance the structural stability of single-crystal LiNi0.8Co0.1Mn0.1O2 cathode materials for lithium-ion batteries 优化导电环化聚丙烯腈含量，提高单晶LiNi0.8Co0.1Mn0.1O2锂离子电池正极材料的结构稳定性

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2025-01-31 DOI: 10.1007/s42823-024-00852-9

Minyue Wen, Sheng Wang, Jiawen Wang, Jiafu Yu, Shuaihao Li, Qiuyu Zeng

{"title":"Optimization of conductive cyclized polyacrylonitrile content to enhance the structural stability of single-crystal LiNi0.8Co0.1Mn0.1O2 cathode materials for lithium-ion batteries","authors":"Minyue Wen, Sheng Wang, Jiawen Wang, Jiafu Yu, Shuaihao Li, Qiuyu Zeng","doi":"10.1007/s42823-024-00852-9","DOIUrl":"10.1007/s42823-024-00852-9","url":null,"abstract":"<div><p>To optimize the electrochemical properties of Ni-rich cathode materials, CPAN@SC-NCM811 is prepared via surface modification of single-crystalline LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> cathode material by adding 1, 2 and 3 wt.% of polyacrylonitrile, respectively. Significantly, the results obtained from X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM) verify the successful synthesis of CPAN@SC-NCM811 cathode, which exhibits better electrochemical properties compared to SC-NMC811. After thorough milling and calcination of 2 wt.% polyacrylonitrile with SC-NCM811, the initial discharge specific capacity of prepared S2 sample is 197.7 mAh g<sup>−1</sup> and the capacity retention reached 89.2% after 100 cycles at a rate of 1.0 C. Furthermore, the S2 sample exhibits superior rate performance compared to the other three samples, in which these superior electrochemical properties are largely attributed to the optimal ratio of conductive cyclized polyacrylonitrile coatings. Overall, this work offers guidelines for modifying the surface of SC-NCM811 cathode materials for lithium-ion batteries with exceptional cycling and rate performance.</p><h3>Graphical abstract</h3><p>Preparation schematic of the CPAN@SC-NCM811 cathode materials and the corresponding cycling performance of the assembled coin cells</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 3","pages":"1285 - 1290"},"PeriodicalIF":5.5,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers 硫促进剂对直纺碳纳米管纤维电导率的影响

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2025-01-29 DOI: 10.1007/s42823-025-00859-w

Ho Jun Moon, Sumin Kim, Myeong Wan Han, Yoong Ahm Kim, Moo-Sung Lee, Jong Hun Han

{"title":"Influence of sulfur promoter on electrical conductivity in direct-spun carbon nanotube fibers","authors":"Ho Jun Moon, Sumin Kim, Myeong Wan Han, Yoong Ahm Kim, Moo-Sung Lee, Jong Hun Han","doi":"10.1007/s42823-025-00859-w","DOIUrl":"10.1007/s42823-025-00859-w","url":null,"abstract":"<div><p>Carbon nanotube (CNT) fibers were synthesized in this study under a hydrogen atmosphere using the floating-catalyst chemical vapor deposition (CVD) technique. Acetone, ferrocene, and thiophene served as the sources of carbon, catalyst, and promoter, respectively. By adjusting the amount of thiophene, the sulfur molar ratio in the CVD reactor was varied to study its impact on the morphology and composition of the CNT fibers. Raman and TEM analyses showed that the structural properties of the CNTs, especially the production of single-walled CNTs (SWCNTs) with a high Raman I<sub>G</sub>/I<sub>D</sub> ratio of approximately 23.8, can be finely tuned by altering the sulfur content, which also affects the accumulation of spherical carbonaceous particles. Moreover, it was established that the electrical conductivity of the CNT fibers is significantly influenced by their specific components—SWCNTs, multi-walled CNTs (MWCNTs), and spherical carbonaceous particles. The ratios of these components can be adjusted by modifying the molar ratios of catalyst and promoter in the precursor mixture. Remarkably, SWCNTs with enhanced crystallinity were found to substantially improve the electrical conductivity of the CNT fibers, despite the presence of numerous spherical carbon impurities.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 3","pages":"1271 - 1283"},"PeriodicalIF":5.5,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coal tar-coated artificial graphite anode derived from polyethylene for lithium-ion batteries 锂离子电池用聚乙烯制备的煤焦油包覆人造石墨阳极

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2025-01-28 DOI: 10.1007/s42823-024-00855-6

Heewon Jin, Chelwoo Kim, Sei-Min Park, Jung-Chul An, Inchan Yang, Dalsu Choi

{"title":"Coal tar-coated artificial graphite anode derived from polyethylene for lithium-ion batteries","authors":"Heewon Jin, Chelwoo Kim, Sei-Min Park, Jung-Chul An, Inchan Yang, Dalsu Choi","doi":"10.1007/s42823-024-00855-6","DOIUrl":"10.1007/s42823-024-00855-6","url":null,"abstract":"<p>Polyethylene (PE) is one of the most widely used plastics, and vast amounts of waste PE are either buried or incinerated, leading to environmental concerns. Significant research efforts have focused on converting waste PE into carbon materials, particularly as carbon anodes for lithium-ion batteries (LIBs). However, most previously developed PE-based carbon anodes have underperformed compared to graphite-based commercial anode materials (CAM). In this study, LIB anode materials were prepared based on both commercial high-density polyethylene (CPE) and waste high-density polyethylene (WPE). Through thermal oxidative stabilization and high-temperature graphitization, both CPE and WPE were successfully transformed into highly crystalline carbon materials comparable to CAM. However, despite the high crystallinity, both CPE and WPE derived carbon contained significant number of fine particles and exhibited a broad particle size distribution. When used as an anode for LIBs, fine particles led to unwanted side reactions, resulting in an initial coulombic efficiency (ICE) of around 85%, which is lower than the ICE value of 92.5% observed in CAM. To tackle the low ICE problem, recarbonization after coal tar (CT) coating was adopted as a mean to induce secondary particle formation. After CT coating, the average particle size increased, and the size distribution became narrower. Although CT coating reduced the crystallinity slightly, the overall level remained comparable to that of CAM. As a result, the CT-coated graphitized CPE (GCPE@10CT) and CT-coated graphitized WPE (GWPE@10CT) exhibited performance comparable to CAM as LIB anodes, achieving an ICE of over 93% and a capacity of approximately 349 mAh g<sup>−1</sup>.</p>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 3","pages":"1259 - 1270"},"PeriodicalIF":5.5,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyacrylonitrile-derived carbon nanofibers/carbon foams containing closed microspheres 含封闭微球的聚丙烯腈衍生碳纳米纤维/碳泡沫

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2025-01-27 DOI: 10.1007/s42823-025-00862-1

Yue Cao, Bin Wang, Gongfei Xue, Linwei Hou, Heng Wang, Bingyao Su

{"title":"Polyacrylonitrile-derived carbon nanofibers/carbon foams containing closed microspheres","authors":"Yue Cao, Bin Wang, Gongfei Xue, Linwei Hou, Heng Wang, Bingyao Su","doi":"10.1007/s42823-025-00862-1","DOIUrl":"10.1007/s42823-025-00862-1","url":null,"abstract":"<div><p>Lightweight materials with favorable mechanical, electromagnetic interference (EMI) shielding and thermal insulation performance are highly desirable for applications in harsh environments. Polyacrylonitrile (PAN)-derived carbon nanofibers/carbon foams containing hollow closed microspheres have been developed, and their balanced multifunction is noteworthy. The addition of CNFs resulted in a gradual enhancement of the specific compressive strength of carbon foams, reaching a maximum value of 26.6 MPa·cm<sup>3</sup>·g<sup>−1</sup> with content of 3 wt.% CNFs, improved by as much as 62%, compared to that of pristine carbon foam. Additionally, the fracture toughness exhibited the maximum fracture energy absorption of 118.6 MJ‧m<sup>−3</sup> at 3 wt.% CNFs. The appropriate amount of CNFs and hollow carbon microspheres resulted in effective toughening and strengthening of carbon foams. Incorporation of CNFs into carbon foams also resulted in an improvement in their electromagnetic shielding performance, with a maximum EMI-shielding effectiveness of 65.8 dB. Reflection loss was the main contributor to electromagnetic shielding efficiency. Furthermore, carbon foams presented remarkable high-temperature thermal insulation, with a minimum thermal conductivity of merely 0.509 W·m<sup>−1</sup>·K<sup>−1</sup> at 800 °C. They exhibited the ability to withstand the butane flame ablation at 1000 °C, which substantiated the potential of carbon foams for aerospace applications.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 3","pages":"1235 - 1246"},"PeriodicalIF":5.5,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heat-generation capability of CNT/PDMS nanocomposites with different CF lengths: experimental and numerical approaches 不同CF长度CNT/PDMS纳米复合材料的产热性能：实验和数值方法

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2025-01-27 DOI: 10.1007/s42823-024-00842-x

Ermias Shimelis, Jinho Bang, Jongwon Jung, Daeik Jang, Beomjoo Yang

引用次数: 0

Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors 海洋生物质活性炭作为电双层电容器的电极材料

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2025-01-26 DOI: 10.1007/s42823-024-00854-7

Jueun Choi, Keiko Ideta, Hyeonseok Yi, Toru Kato, Koji Saito, Hiroko Watanabe, Koji Nakabayashi, Jin Miyawaki, Yoong Ahm Kim, Seong-Ho Yoon

{"title":"Marine biomass-derived activated carbon as an electrode material for electric double-layer capacitors","authors":"Jueun Choi, Keiko Ideta, Hyeonseok Yi, Toru Kato, Koji Saito, Hiroko Watanabe, Koji Nakabayashi, Jin Miyawaki, Yoong Ahm Kim, Seong-Ho Yoon","doi":"10.1007/s42823-024-00854-7","DOIUrl":"10.1007/s42823-024-00854-7","url":null,"abstract":"<div><p>Marine biomass (MB) offers an environmentally friendly and readily available carbon source from the ocean. However, the high concentration of alkali and alkaline earth metals (AAEMs) in MB typically reduces the carbon yield and inhibits micropore formation during heat treatment due to catalytic gasification. In this study, we successfully synthesized activated carbon (AC) with a high specific surface area (> 1,500 m<sup>2</sup>/g) and significant mesopore content (60%, mean pore size: 3.4 nm) from MB by employing preheating, controlled acid purification, and CO₂ activation. The formation of mesopores in the MB-derived AC was driven by catalytic gasification induced by intrinsic and residual AAEMs during preheating and physical activation processes. We evaluated the potential of the MB-derived AC as an electrode material for electric double-layer capacitors (EDLCs). The material demonstrated high specific capacitance values of 25.9 F/g and 29.4 F/g at 2.7 V and 3.3 V, respectively, during charge–discharge cycles. These high capacitance values at elevated voltages were attributed to the increased number of solvated ions (e.g., 1.93 mmol/g at 3.3 V) present in the mesopores. Fluorine-19 nuclear magnetic resonance (<sup>19</sup>F solid-state NMR) analysis revealed a substantial increase in solvated ion concentration within the mesopores of the MB-derived AC electrode at 3.3 V, demonstrating enhanced ion mobility and diffusion. These findings highlight the potential of MB-derived AC as a promising electrode material for high-voltage energy storage applications.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 3","pages":"1221 - 1233"},"PeriodicalIF":5.5,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biased dual-exfoliation technique with expanded graphite for high-quality few-layer graphene sheets in electrochemical exfoliation 膨胀石墨偏置双剥落技术用于电化学剥落中高质量的少层石墨烯片

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2025-01-25 DOI: 10.1007/s42823-025-00865-y

Sungmook Lim, Niranjanmurthi Lingappan, Wonoh Lee

{"title":"Biased dual-exfoliation technique with expanded graphite for high-quality few-layer graphene sheets in electrochemical exfoliation","authors":"Sungmook Lim, Niranjanmurthi Lingappan, Wonoh Lee","doi":"10.1007/s42823-025-00865-y","DOIUrl":"10.1007/s42823-025-00865-y","url":null,"abstract":"<div><p>Efforts to mass-produce high-quality graphene sheets are crucial for advancing its practical and industrial applications across various fields. In this study, we present an innovative electrochemical exfoliation method designed to enhance graphene quality and increase yield. Our approach combines two key techniques: expanding the tightly packed graphite interlayer used as the electrode medium and precisely controlling voltage polarity. The dual-exfoliation technique optimizes the use of anions and cations of varying sizes in the electrolyte to facilitate meticulous intercalation, allowing ions to penetrate deeply and evenly into the graphite interlayer. The newly designed dual-exfoliation technique using biased switching polarity minimizes the generation of oxygen-containing radicals, while the incorporation of expanded graphite accelerates exfoliation speed and reduces oxidation, maintaining high graphene purity. With these improvements, we produced 1–3 layer graphene sheets with minimal defects (I<sub><i>D</i></sub><i>/</i>I<sub><i>G</i></sub> ≈ 0.13) and high purity (C/O ratio ≈ 20.51), achieving a yield 3.1 times larger than previously reported methods. The graphene sheets also demonstrated excellent electrochemical properties in a three-electrode system, with an electrical conductivity of 92.6 S cm<sup>−1</sup>, a specific capacitance of 207.4 F g<sup>−1</sup>, and a retention of 94.8% after 5,000 charge/discharge cycles, highlighting their superior stability and performance.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 3","pages":"1205 - 1220"},"PeriodicalIF":5.5,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facile fabrication of CdS@GO binary nanocomposite coated GCE for separate and parallel electrochemical sensing of ascorbic acid, uric acid and nitrite 用于抗坏血酸、尿酸和亚硝酸盐分离和并行电化学传感的CdS@GO二元纳米复合涂层GCE的制备

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2025-01-23 DOI: 10.1007/s42823-024-00838-7

A. Dhamodharan, E. Murugan, Huan Pang, K. Perumal, K. Jhansirani, Yajun Gao

{"title":"Facile fabrication of CdS@GO binary nanocomposite coated GCE for separate and parallel electrochemical sensing of ascorbic acid, uric acid and nitrite","authors":"A. Dhamodharan, E. Murugan, Huan Pang, K. Perumal, K. Jhansirani, Yajun Gao","doi":"10.1007/s42823-024-00838-7","DOIUrl":"10.1007/s42823-024-00838-7","url":null,"abstract":"<div><p>The accurate detection of vital biomarkers such as Ascorbic Acid (AA), Uric Acid (UA) and Nitrite (NO<sub>2</sub><sup>−</sup>) is crucial for human health surveillance. However, existing methods often struggle with concurrent detection and quantification of multiple species, highlighting the need for a more effective solution. To address this challenge, this study aimed to develop a multifunctional electrochemical sensor capable of parallel detection of AA, UA and NO<sub>2</sub><sup>−</sup> using a synergistic combination of Graphene Oxide (GO) and Cadmium Sulfide (CdS) materials. Notably, the fabricated CdS@GO/Glassy Carbon Electrode (GCE) exhibited exceptional electrochemical activity, as evidenced by Differential Pulse Voltammetry (DPV) analysis. The sensor demonstrated remarkable sensitivity (8.13, 10.12, and 9.05 μA·μM<sup>−1</sup>·cm<sup>−2</sup>) and ultra-low detection limits (0.034, 0.062, and 0.084 µM) for AA, UA and NO<sub>2</sub><sup>−</sup>, respectively. Furthermore, it successfully identified single molecules of each analyte in aqueous and biologic fluid samples, with recovery values comparable to those obtained using High-Performance Liquid Chromatography (HPLC) standard addition methods. The significance of this study lies in developing a novel CdS@GO/GCE sensor that enables concurrent detection and quantification of multiple vital biomarkers, offering a promising tool for human health monitoring and diagnosis.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 2","pages":"881 - 893"},"PeriodicalIF":5.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0