Electrocatalysis最新文献

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An Ultrasensitive Dopamine Electrochemical Sensor Based on PVP/rGO-MWCNT Composites 基于 PVP/rGO-MWCNT 复合材料的超灵敏多巴胺电化学传感器
IF 2.7 4区 化学
Electrocatalysis Pub Date : 2024-09-20 DOI: 10.1007/s12678-024-00894-7
Yixuan Jiang, Dandan Luo, Saiwen Liu, Jin Zhang, Wei Meng, Chao Chen
{"title":"An Ultrasensitive Dopamine Electrochemical Sensor Based on PVP/rGO-MWCNT Composites","authors":"Yixuan Jiang,&nbsp;Dandan Luo,&nbsp;Saiwen Liu,&nbsp;Jin Zhang,&nbsp;Wei Meng,&nbsp;Chao Chen","doi":"10.1007/s12678-024-00894-7","DOIUrl":"10.1007/s12678-024-00894-7","url":null,"abstract":"<div><p>Dopamine (DA) is a neurotransmitter secreted by the brain that plays a variety of roles in the central nervous system. An imbalance in dopamine can cause a range of disease symptoms and negative effects, such as Parkinson’s disease and arrhythmia. Detecting DA accurately and rapidly is therefore crucial for medical diagnosis and disease prevention. In this study, PVP and rGO-MWCNTs were encapsulated via a hydrothermal method to form a composite material. The composite was then characterized by scanning electron microscopy (SEM). The three materials were combined, and on this basis, a new DA electrochemical sensor was constructed. Notably, the high specific surface area and high conductivity of the rGO-MWCNTs cooperate with the amphiphilic and stable dispersion of PVP, which further improves the electrocatalytic activity of the sensor for DA. Under optimal conditions, the DA content is detected within a wide range and has a low detection limit, which can be explained by the electrochemical redox process of the sensor. In addition, the sensor shows satisfactory recovery and accuracy in detecting the DA content in real human serum samples via the standard addition method.</p></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"15 6","pages":"485 - 495"},"PeriodicalIF":2.7,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142438865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrochemical Conversion of Triclosan as a Greener Alternative to Chemical Oxidation 电化学转化三氯生作为化学氧化的绿色替代品
IF 2.7 4区 化学
Electrocatalysis Pub Date : 2024-09-20 DOI: 10.1007/s12678-024-00892-9
Tyra Lewis, Stephanie Gao, Deanna Haas, Sanela Martic
{"title":"Electrochemical Conversion of Triclosan as a Greener Alternative to Chemical Oxidation","authors":"Tyra Lewis,&nbsp;Stephanie Gao,&nbsp;Deanna Haas,&nbsp;Sanela Martic","doi":"10.1007/s12678-024-00892-9","DOIUrl":"10.1007/s12678-024-00892-9","url":null,"abstract":"<div><p>Triclosan, like many other aromatic halides, plays an important role industrially and inevitably ends up in the environment. Chemical treatments have effectively mitigated the presence of such chemicals, through using harsh oxidizing treatments, which are not without issues. A milder and greener alternative, such as an electrochemical method, is needed for the mitigation of compounds, such as triclosan. Herein, we evaluated triclosan treatment via electrochemical cycling and compared it to a traditional chemical oxidative process. Cyclic voltammetry was carried out using a three-electrode cell containing glassy carbon, silver wire, and platinum wire in organic solvent. Electrochemical cycling revealed 6 × greater triclosan conversion compared to traditional chemical oxidation reaction, as monitored by UV–Vis spectroscopy. In terms of reaction product selectivity, the chemical and electrochemical reactions yielded the oxidized triclosan and an ether cleavage product, dichlorophenol, as determined by gas chromatography–mass spectrometry. Of note, the chemical oxidation yielded the chlorinated re-dimerization side product, which was not observed during electrochemical cycling, which is beneficial, as such products have to be degraded again. Overall, our findings indicate that electrochemical methods offer significant advantages over traditional organic methods, such as product selectivity, relative conversion, and greener operation. In addition, electrochemical approaches offer tunability, such as electrode material, electrolyte, solvent, potential, or current applied, all of which may be integrated into a more efficient environmental application.\u0000</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"15 6","pages":"474 - 484"},"PeriodicalIF":2.7,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142438885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exfoliated 2-D Graphitic Carbon Nitride Nanosheets for Electrochemical Detection of the Antiviral Drug Valganciclovir 用于电化学检测抗病毒药物缬更昔洛韦的剥离二维氮化石墨碳纳米片
IF 2.7 4区 化学
Electrocatalysis Pub Date : 2024-08-27 DOI: 10.1007/s12678-024-00887-6
Madasu Sreenivasulu, Shweta J. Malode, Abdullah N. Alodhayb, Nagaraj P. Shetti
{"title":"Exfoliated 2-D Graphitic Carbon Nitride Nanosheets for Electrochemical Detection of the Antiviral Drug Valganciclovir","authors":"Madasu Sreenivasulu,&nbsp;Shweta J. Malode,&nbsp;Abdullah N. Alodhayb,&nbsp;Nagaraj P. Shetti","doi":"10.1007/s12678-024-00887-6","DOIUrl":"10.1007/s12678-024-00887-6","url":null,"abstract":"<div><p>The research focuses on creating an innovative graphitic carbon nitride electrochemical sensor (g-C<sub>3</sub>N<sub>4</sub>) for the precise and sensitive detection of the antiviral medication valganciclovir (VCR), also known as Valcyte. VCR is an antiviral medication used to treat diseases, including CMV retinitis, and to protect transplant patients against CMV infection by stopping the virus from spreading. This drug is typically given to patients with weak immune systems, HIV/AIDS, and organ transplants. Though VCR provides numerous benefits, it must be administered with caution as it can cause allergic reactions and renal damage. A modified carbon paste electrode called g-C<sub>3</sub>N<sub>4</sub>/CPE has demonstrated remarkable electrocatalytic activity in oxidizing varying levels of chlorine radiation. Various methods were employed to characterize the created g-C<sub>3</sub>N<sub>4</sub>, including field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HR-TEM), X-ray diffraction (XRD), and Raman and Fourier transform infrared (FT-IR). The sensor has a detection range of 1 to 16 µM, which makes it more sensitive than traditional drug detection techniques. It can detect as low as 0.88 × 10<sup>−8</sup> M under ideal experimental conditions. The sensor’s ability to identify VCR using g-C<sub>3</sub>N<sub>4</sub> was tested using amperometric i-t curve analysis. The EIS (electrochemical impedance spectroscopy) was employed to investigate the electrochemical features of many electrodes. The comparable <i>R</i><sub>ct</sub> values were 3114 Ω, 13,770 Ω, and 3794 Ω for g-C<sub>3</sub>N<sub>4</sub>/CPE, bare GCE, and bare CPE, respectively. During the test, various commonly used interferents and drugs were introduced to the VCR solution to examine the influence of foreign interferents on the outcomes. Various electrokinetic factors were examined to explore the electrochemical behavior of VCR. Environmental monitoring, drug analysis, and clinical diagnostics benefited from successfully using the generated g-C<sub>3</sub>N<sub>4</sub>/CPE. Additionally, it can play a vital role in creating new and efficient methods for antiviral drug VCR determination.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"15 6","pages":"456 - 473"},"PeriodicalIF":2.7,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simultaneous Measurement of Uric Acid, Guanine, and Adenine Using AgNP@Mn-MOFs Composite-Based Electrochemical Sensor at Trace Level: Application to Blood, Urine, and DNA Sample Matrices 利用基于 AgNP@Mn-MOFs 复合材料的痕量级电化学传感器同时测量尿酸、鸟嘌呤和腺嘌呤:在血液、尿液和 DNA 样品基质中的应用
IF 2.7 4区 化学
Electrocatalysis Pub Date : 2024-08-26 DOI: 10.1007/s12678-024-00885-8
Supritha K. M., Pandurangappa M.
{"title":"Simultaneous Measurement of Uric Acid, Guanine, and Adenine Using AgNP@Mn-MOFs Composite-Based Electrochemical Sensor at Trace Level: Application to Blood, Urine, and DNA Sample Matrices","authors":"Supritha K. M.,&nbsp;Pandurangappa M.","doi":"10.1007/s12678-024-00885-8","DOIUrl":"10.1007/s12678-024-00885-8","url":null,"abstract":"<div><p>A composite containing silver nanoparticles embedded Mn-MOFs has been synthesized using a simple solvothermal route. The composite-modified electrode has been utilized in the simultaneous measurement of purine base pairs of DNA [guanine (GU), adenine (AD)] and uric acid (UA). The morphology of the composite has been studied by scanning electron microscopy which revealed that the Ag nanoparticles homogeneously get distributed over the layers of Mn-MOFs. The thermal stability of the composite has been studied by thermogravimetric analysis. BET adsorption–desorption isotherm study revealed the large surface area and mesoporous nature of the composite. The electrochemical behavior of the composite material has been studied through impedance spectroscopy, cyclic voltammetry (CV), and square wave voltammetry (SWV) techniques to decipher the redox nature of it towards the target analytes like GU, AD, and UA. Each of these analytes has displayed a distinct catalytic oxidative signal with well-resolved peaks during their simultaneous measurement. The linearity obtained for UA, GU, and AD by square wave voltammetry is in the concentration range of 0.5–280 µM with a limit of detection of 64.49, 78.84, and 125.33 nM, respectively. The composite-modified electrode has been successfully applied to real sample matrices like human serum, urine, and commercially available fish sperm DNA samples. The fabricated sensor showed very good responses to these analytes from real sample matrices with prolonged stability and reproducibility.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 1","pages":"1 - 14"},"PeriodicalIF":2.7,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hofmann-Type Coordination Polymer-Derived Nickel Phosphide Nanoplates for Electrocatalytic Oxidation and Determination of Insulin 用于电催化氧化和胰岛素测定的霍夫曼型配位聚合物衍生磷化镍纳米板
IF 2.7 4区 化学
Electrocatalysis Pub Date : 2024-08-24 DOI: 10.1007/s12678-024-00888-5
Mahmoud Roushani, Hadi Hosseini, Kowsar Maleki, Farzaneh Mohammadi
{"title":"Hofmann-Type Coordination Polymer-Derived Nickel Phosphide Nanoplates for Electrocatalytic Oxidation and Determination of Insulin","authors":"Mahmoud Roushani,&nbsp;Hadi Hosseini,&nbsp;Kowsar Maleki,&nbsp;Farzaneh Mohammadi","doi":"10.1007/s12678-024-00888-5","DOIUrl":"10.1007/s12678-024-00888-5","url":null,"abstract":"<div><p>It is of key importance to design efficient insulin electrocatalysts based on nonprecious noble metal-free. However, the design of advanced nanostructured based metal phosphides is scarcely reported. In this work, for the first time, a novel insulin sensor based on Ni<sub>2</sub>P electrode materials with nanoplate structure was designed. In this regard, Hofmann-type coordination polymers (HCPs) based on Ni(H<sub>2</sub>O)<sub>2</sub>[Ni(CN)<sub>4</sub>]·H<sub>2</sub>O (Ni–Ni HCP) were prepared and used as precursors to the preparation of Ni<sub>2</sub>P. The unique layer structure of Ni–Ni HCP precursors can lead to the preparation of Ni<sub>2</sub>P nanoplates with large surface areas, high availability of active catalytic centers, and abundant interior space for fast diffusion and boosted reaction kinetics. The electrochemical results showed that the Ni<sub>2</sub>P nanoplates offer excellent capability toward insulin oxidation in 0.1 M NaOH electrolyte solution. Moreover, a proper linear relationship was obtained between insulin concentrations and the current responses in the range of 10 to 100 pM with the detection limit of 3 pM and with good capability for the determination of insulin in the human blood serum sample. This work offers a rational method for the structure engineering of Ni<sub>2</sub>P nanoplates using HCP precursors, which can lead to the fabrication of high-performance insulin sensor.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"15 6","pages":"448 - 455"},"PeriodicalIF":2.7,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In Situ Synthesized Gold-Conjugated Hemoglobin-Cu3 (PO4)2 Hybrid Nanopetals for Enhanced Electrochemical Detection of H2O2 用于增强 H2O2 电化学检测的原位合成金共轭血红蛋白-Cu3 (PO4)2 混合纳米金属
IF 2.7 4区 化学
Electrocatalysis Pub Date : 2024-08-17 DOI: 10.1007/s12678-024-00886-7
Mallesh Santhosh, Tusan Park
{"title":"In Situ Synthesized Gold-Conjugated Hemoglobin-Cu3 (PO4)2 Hybrid Nanopetals for Enhanced Electrochemical Detection of H2O2","authors":"Mallesh Santhosh,&nbsp;Tusan Park","doi":"10.1007/s12678-024-00886-7","DOIUrl":"10.1007/s12678-024-00886-7","url":null,"abstract":"<div><p>In situ synthesis of novel hybrid organic–inorganic nanopetals (HNPs) of Copper (Cu<sup>2+</sup>) and gold-conjugated hemoglobin (Au@Hb) is reported. The presence of Au within the protein matrix prevents the formation of a flower-like assembly of the formed nanopetals of Au@Hb and Cu<sup>2+</sup> via the co-precipitation method. Morphological, chemical, and electrocatalytic activities of in situ synthesized Au@Hb-Cu HNPs were examined systematically. The hybrid nanopetal (Au@Hb-Cu HNP)-modified screen-printed PET electrodes show enhanced electrocatalytic activity toward the oxidation of H<sub>2</sub>O<sub>2</sub> compared to electrodes modified with Hb-copper hybrid nanoflowers (Hb-Cu HNFs) without Au conjugation. The proposed biosensor exhibits excellent electrochemical performance with broad linear responses over a H<sub>2</sub>O<sub>2</sub> concentration ranging from 5 to 1000 µM (<i>R</i><sup>2</sup> = 0.99) and showed a lower detection limit of 1.46 µM at 0.30 V vs. pseudo Ag/AgCl. Enhanced electrochemical performance is attributed to heterogeneous active sites over hybrid nanopetal surfaces. Moreover, the hybrid nanopetal–modified electrodes showed excellent stability and anti-interference performance in the presence of ascorbic acid, uric acid, fructose, and glucose. These results demonstrate that Au@Hb-Cu HNPs offer a better and more promising alternative for the electrochemical detection of H<sub>2</sub>O<sub>2</sub> sensitively.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"15 6","pages":"438 - 447"},"PeriodicalIF":2.7,"publicationDate":"2024-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Theoretical Inquest of Atomically Injected Ni-Atom over Graphene and Analogous Substrates for Hydrogen Evolution Reaction 石墨烯和类似基底上原子注入镍原子进行氢气进化反应的理论探索
IF 2.7 4区 化学
Electrocatalysis Pub Date : 2024-08-03 DOI: 10.1007/s12678-024-00884-9
Hemang P. Tanna, Prafulla K. Jha
{"title":"A Theoretical Inquest of Atomically Injected Ni-Atom over Graphene and Analogous Substrates for Hydrogen Evolution Reaction","authors":"Hemang P. Tanna,&nbsp;Prafulla K. Jha","doi":"10.1007/s12678-024-00884-9","DOIUrl":"10.1007/s12678-024-00884-9","url":null,"abstract":"<p>A rational catalyst for electrocatalytic hydrogen evolution reaction (HER) is a long-standing challenge that researchers are confronted with. In view of this, tiny particles of transition metals (TMs) spread over a substrate acting as an active site for the reaction, scientifically known as single-atom catalysts is seen as an efficacious way for designing an efficient catalyst. Herein, we comprehensively investigated catalytic activity of Ni-atoms spread over various kinds of two-dimensional (2D) substrates like graphene, AlC, AlN, h-BN, BeO, and MgO (Ni@2D) towards HER using density functional theory calculations. All the considered 2D substrates have various inequivalent anchoring sites like top, hollow, bridge, and vacancy sites for Ni-atoms. So, there are total 34 anchoring sites, and we computed binding energy (E<span>(_b)</span>) of Ni-atom over all the sites. Having large number of configurations, we first applied a screener on stability of Ni@2D and only considered those configurations for which the E<span>(_b)</span> value is &lt;<span>(-)</span>3.00 eV for further calculations. Out of 34, 17 configurations were falling in this range. Further, we computed the differential Gibbs free energy of H-adsorption (<span>(Delta)</span>G<span>(_H)</span>) and generated volcano plot between <span>(Delta)</span>G<span>(_H)</span> and exchange current density (<span>(i_0)</span>) as a prime indicators of HER activity. Then, we screened these configurations based on <span>(Delta)</span>G<span>(_H)</span> values that <span>(|Delta)</span>G<span>(_H|)</span> <span>(le)</span> to 0.5 eV, and out of 17, 10 systems were falling in this region. At last, we examined complete reaction profile of HER via Volmer-Heyrovsky (VH) and Volmer-Tafel (VT) mechanisms over the remaining 10 configurations, and the lowest activation energy for HER are 0.12 eV and 0.21 eV for Ni@AlN and 0.28 eV and 0.36 eV for Ni@h-BN via VT and VH mechanism, respectively. Our findings show Ni@AlN and Ni@h-BN could be a non-noble TM candidate for eco-operational HER catalyst.</p>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"15 5","pages":"412 - 420"},"PeriodicalIF":2.7,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141882642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Study on Effect of Electrodeposited CoSe Electrocatalyst Dissolution on Hydrogen Evolution Reaction in Acidic Environments 电沉积 CoSe 电催化剂溶解对酸性环境中氢气进化反应影响的研究
IF 2.7 4区 化学
Electrocatalysis Pub Date : 2024-07-30 DOI: 10.1007/s12678-024-00881-y
Soyeon Lim, Taeho Lim
{"title":"A Study on Effect of Electrodeposited CoSe Electrocatalyst Dissolution on Hydrogen Evolution Reaction in Acidic Environments","authors":"Soyeon Lim,&nbsp;Taeho Lim","doi":"10.1007/s12678-024-00881-y","DOIUrl":"10.1007/s12678-024-00881-y","url":null,"abstract":"<div><p>CoSe is one of the chalcogenides attracting much attention due to its excellent hydrogen evolution reaction (HER) activity and low price. However, CoSe prepared by electrodeposition generally shows lower HER activity and stability under acidic conditions than those prepared by other methods. In this study, it was assumed that the cause of the low HER performance of electrodeposited CoSe is mainly due to the dissolution of Co and Se, which do not form a stable alloy, and annealing of electrodeposited CoSe was introduced to demonstrate this. We compared the HER activity and stability of non-annealed and annealed CoSe in 0.5 M H<sub>2</sub>SO<sub>4</sub> electrolyte and investigated the dissolution behaviors of the two catalysts during HER. As a result, it was found that Co and Se, which did not form a stoichiometric CoSe<sub>2</sub> alloy, were found to be vulnerable in acidic conditions. The annealing induced additional CoSe<sub>2</sub> formation, improving the HER activity and stability of electrodeposited CoSe. The annealed CoSe exhibited an overpotential of 175 mV at 10 mA cm<sup>−2</sup>, 27 mV lower than that of non-annealed one, and was stable for 48 h at 10 mA cm<sup>−2</sup>.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"15 5","pages":"401 - 411"},"PeriodicalIF":2.7,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141864614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Alternative Route to Prepare Polymelamine by Electropolymerization in Deep Eutectic Solvents Containing Water 在含水的深共晶溶剂中通过电聚合制备聚丙烯酰胺的替代方法
IF 2.7 4区 化学
Electrocatalysis Pub Date : 2024-07-15 DOI: 10.1007/s12678-024-00883-w
Xi Xiao, Jin Ma, Yujie Tan, Canjun Liu, Yuanqiang Hao, Peisheng Zhang, Rongjin Zeng, Shu Chen
{"title":"An Alternative Route to Prepare Polymelamine by Electropolymerization in Deep Eutectic Solvents Containing Water","authors":"Xi Xiao,&nbsp;Jin Ma,&nbsp;Yujie Tan,&nbsp;Canjun Liu,&nbsp;Yuanqiang Hao,&nbsp;Peisheng Zhang,&nbsp;Rongjin Zeng,&nbsp;Shu Chen","doi":"10.1007/s12678-024-00883-w","DOIUrl":"10.1007/s12678-024-00883-w","url":null,"abstract":"<div><p>An alternative route is offered for the electrodeposition of polymelamine (pMel) by electropolymerization in deep eutectic solvents, which has been proposed previously (Electrocatalysis 12:238–250, 2021) but difficultly synthesizing pMel in (Electrocatalysis 14:131–137, 2023). The introduction of a modest amount of water as an additive into deep eutectic solvents enables the electropolymerzation of melamine to pMel on carbon electrodes. The electrochemical behavior and catalytic activity of active chlorine species in different proportions of water-containing deep eutectic solvents was studied carefully by cyclic voltammetry. Electrochemical quartz crystal microbalance and atomic force microscopy studies confirmed the mass changes and nanostructure formation that occurred during pMel deposition.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"15 5","pages":"394 - 400"},"PeriodicalIF":2.7,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141647858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Label-Free Determination of Atrazine Using a Novel Electrochemical Aptasensor Based on Multiwalled Carbon Nanotube/Graphene Oxide Nanocomposite and Chitosan 使用基于多壁碳纳米管/氧化石墨烯纳米复合材料和壳聚糖的新型电化学传感器无标记测定阿特拉津
IF 2.7 4区 化学
Electrocatalysis Pub Date : 2024-07-15 DOI: 10.1007/s12678-024-00882-x
Muhaned Mohammed Eteya, Gholam Hossein Rounaghi, Behjat Deiminiat
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