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Oxygen Transport in Microtubular Membranes La0.5Sr0.5Fe1 – xNbxO3 – δ 微管膜中的氧传输 La0.5Sr0.5Fe1 - xNbxO3 - δ
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-04-27 DOI: 10.1134/S1023193524010051
I. V. Kovalev, R. D. Guskov, V. P. Sivtsev, M. I. Gongola, M. P. Popov, A. P. Nemudry
{"title":"Oxygen Transport in Microtubular Membranes La0.5Sr0.5Fe1 – xNbxO3 – δ","authors":"I. V. Kovalev,&nbsp;R. D. Guskov,&nbsp;V. P. Sivtsev,&nbsp;M. I. Gongola,&nbsp;M. P. Popov,&nbsp;A. P. Nemudry","doi":"10.1134/S1023193524010051","DOIUrl":"10.1134/S1023193524010051","url":null,"abstract":"<p>Perovskite-like oxides based on lanthanum–strontium ferrites are considered to be promising electrode materials for use in various types of fuel cells, and the strategy of modifying these materials by partial substitution of iron with highly charged ferroactive cations has proved to be an efficient way to increase their chemical stability. In this work, the results of a study of the permeability of microtubular oxygen membranes based on La<sub>0.5</sub>Sr<sub>0.5</sub>Fe<sub>1 –</sub> <sub><i>x</i></sub>Nb<sub><i>x</i></sub>O<sub>3 – δ</sub> are presented for the first time. The activation energy of oxide bulk diffusion was found (20 ± 4 kJ/mol).</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 1","pages":"57 - 61"},"PeriodicalIF":1.1,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140811963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and Electrocatalytic Activity of Graphene–Phosphorene Structures Decorated with Cobalt Atoms 钴原子装饰的石墨烯-膦结构的合成与电催化活性
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-04-27 DOI: 10.1134/S1023193524020071
R. A. Manzhos, N. S. Komarova, A. S. Kotkin, V. K. Kochergin, T. R. Prikhodchenko, A. G. Krivenko
{"title":"Synthesis and Electrocatalytic Activity of Graphene–Phosphorene Structures Decorated with Cobalt Atoms","authors":"R. A. Manzhos,&nbsp;N. S. Komarova,&nbsp;A. S. Kotkin,&nbsp;V. K. Kochergin,&nbsp;T. R. Prikhodchenko,&nbsp;A. G. Krivenko","doi":"10.1134/S1023193524020071","DOIUrl":"10.1134/S1023193524020071","url":null,"abstract":"<p>Nitrogen-doped few-layered graphene structures are synthesized by plasma-assisted electrochemical exfoliation of graphite and used in the preparation of composites with phosphorene structures obtained by supersonic exfoliation of a porous black-phosphorus electrode covered with preliminarily deposited cobalt. The catalytic activity in the hydrogen evolution reaction is studied for the few-layered graphene and phosphorene structures, as well as their mixtures. The mixed electrocatalysts demonstrate the highest activity in the hydrogen evolution reaction.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 2","pages":"150 - 154"},"PeriodicalIF":1.1,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140811972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and Study of the Physicochemical Properties of Composite Solid Electrolytes (C4H9)3CH3NBF4–Cnanodiamonds (C4H9)3CH3NBF4-Cnanodiamonds 复合固体电解质的合成与理化性质研究
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-04-27 DOI: 10.1134/S1023193524010105
I. A. Stebnitsky, N. F. Uvarov, Yu. G. Mateyshina
{"title":"Synthesis and Study of the Physicochemical Properties of Composite Solid Electrolytes (C4H9)3CH3NBF4–Cnanodiamonds","authors":"I. A. Stebnitsky,&nbsp;N. F. Uvarov,&nbsp;Yu. G. Mateyshina","doi":"10.1134/S1023193524010105","DOIUrl":"10.1134/S1023193524010105","url":null,"abstract":"<p>The paper presents the results of studies of the structural, thermal, and transport properties of solid composite electrolytes (1 – <i>x</i>)(C<sub>4</sub>H<sub>9</sub>)<sub>3</sub>CH<sub>3</sub>NBF<sub>4</sub>–<i>x</i>C<sub>ND</sub> (where C<sub>ND</sub> are nanodispersed diamonds, 0 ≤ <i>x</i> &lt; 1, <i>x</i> is the mole fraction). It was shown by the Pawley method that the crystal structure of the low-temperature (C<sub>4</sub>H<sub>9</sub>)<sub>3</sub>CH<sub>3</sub>NBF<sub>4</sub> phase is described by the space symmetry group <i>P</i>4<sub>2</sub>/<i>ncm</i>. The addition of an inert nanodiamond additive led to an increase in the electric conductivity of the composite electrolyte by four orders of magnitude to 1.3 × 10<sup>–3</sup> S/cm at 145°C and at <i>x</i> = 0.98. The theoretical dependences adequately describe the experimental data in the concentration range 0 ≤ <i>x</i> ≤ 0.99 at temperatures of 84 and 127°C.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 1","pages":"18 - 24"},"PeriodicalIF":1.1,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140812517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Supercapacitors for Extreme Temperatures: A Review 用于极端温度的超级电容器：综述
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-04-27 DOI: 10.1134/S1023193524020022
Yu. M. Volfkovich
{"title":"Supercapacitors for Extreme Temperatures: A Review","authors":"Yu. M. Volfkovich","doi":"10.1134/S1023193524020022","DOIUrl":"10.1134/S1023193524020022","url":null,"abstract":"<p>This review considers the literature on electrochemical supercapacitors operating at extreme temperatures from –80 to +220°C, which is very important for practice. The influence of the following methods and factors on the efficiency of the electrochemical supercapacitors at the extreme temperatures is considered: the using of ionic liquids as electrolytes; the using of modified gel electrolyte, a combined electrolyte, aqueous electrolytes with low freezing point; the using of acetonitrile as an electrolyte solvent; the using of clay as a solid electrolyte; application of solid-state electrochemical supercapacitors; application of electrodes with optimized porous structure; the using of graphene and pseudocapacitive electrodes; the using of solar cells; using of combined techniques to create supercapacitors for extreme temperatures. Undoubtedly, this review will be of great interest both for fundamental electrochemistry and for practice.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 2","pages":"93 - 115"},"PeriodicalIF":1.1,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140811967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","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 the BSCFM5-Based Cathode Layer in the Microtubular Solid-Oxide Fuel Cells and the Study of Its Effect on the Power Characteristics 微管固态氧化物燃料电池中基于 BSCFM5 的阴极层的优化及其对功率特性影响的研究
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-04-27 DOI: 10.1134/S1023193524010063
E. Y. Lapushkina, V. P. Sivtsev, I. V. Kovalev, M. P. Popov, A. P. Nemudry
{"title":"Optimization of the BSCFM5-Based Cathode Layer in the Microtubular Solid-Oxide Fuel Cells and the Study of Its Effect on the Power Characteristics","authors":"E. Y. Lapushkina,&nbsp;V. P. Sivtsev,&nbsp;I. V. Kovalev,&nbsp;M. P. Popov,&nbsp;A. P. Nemudry","doi":"10.1134/S1023193524010063","DOIUrl":"10.1134/S1023193524010063","url":null,"abstract":"<p>Among all types of solid oxide fuel cells, the microtubular design demonstrated increased resistance to thermal cycling and a high power density (from 300 to 1000 W/kg and higher). Currently, one of the basic problems is the choice of a material to be used as the cathode; other problems are associated with the microstructure just within the cathodic layer of the microtubular solid-oxide fuel cells. This work is aimed at the studying of the power characteristics of microtubular solid-oxide fuel cells using Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.75</sub>Fe<sub>0.2</sub>Mo<sub>0.05</sub>O<sub>3 – δ</sub> as a cathode material. A cathodic layer with a thickness of 65 µm, including 4 cathodic functional layers and 4 cathodic collecting ones, is optimal and allows reaching the power of a single microtubular solid-oxide fuel cell as high as 750–850 mW/cm<sup>2</sup>.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 1","pages":"50 - 56"},"PeriodicalIF":1.1,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140881899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and Properties of ZnO/ZnWO4-Nanocomposites for Photoelectrochemical Applications 用于光电化学应用的 ZnO/ZnWO4 纳米复合材料的合成及其特性
IF 1.2 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-01-16 DOI: 10.1134/s1023193523120145
A. A. Ulyankina, A. D. Tsarenko, T. A. Molodtsova, M. V. Gorshenkov, N. V. Smirnova
{"title":"Synthesis and Properties of ZnO/ZnWO4-Nanocomposites for Photoelectrochemical Applications","authors":"A. A. Ulyankina, A. D. Tsarenko, T. A. Molodtsova, M. V. Gorshenkov, N. V. Smirnova","doi":"10.1134/s1023193523120145","DOIUrl":"https://doi.org/10.1134/s1023193523120145","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A series of ZnO/ZnWO<sub>4</sub> nanocomposites with different ZnWO<sub>4</sub> content, are electrochemically synthesized under pulse alternating current starting from ZnO and WO<sub>3</sub> nanopowders. A complex of physicochemical methods (X-ray diffraction analysis, Raman spectroscopy, transmission electron microscopy, energy dispersive X-ray microanalysis) was used to study the composition and structural characteristics of the obtained materials. The nanocomposite with optimal composition (ZnWO<sub>4</sub> ~6%) was used as a photoanode material for a flow photocatalytic fuel cell with sulfate electrolyte added with organic and inorganic fuel. The maximum values of <i>E</i><sub>oc</sub> (850 mV) and <i>P</i><sub>max</sub> (85.8 μW/cm<sup>2</sup>) are achieved using Na<sub>2</sub>SO<sub>4</sub> with the addition of glucose as a fuel.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139475991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Novel Electrochemical Coupled Three-in-One Sensing System for Transforming Organic Pollutants into Green Fuels and Their Sensing 用于将有机污染物转化为绿色燃料及其传感的新型电化学耦合三合一传感系统
IF 1.2 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-01-16 DOI: 10.1134/s1023193523220044
Indu Pandey, Jai Deo Tiwari, Ashish Shukla, M. Sennappan, Periyakaruppan Karuppasamy
{"title":"Novel Electrochemical Coupled Three-in-One Sensing System for Transforming Organic Pollutants into Green Fuels and Their Sensing","authors":"Indu Pandey, Jai Deo Tiwari, Ashish Shukla, M. Sennappan, Periyakaruppan Karuppasamy","doi":"10.1134/s1023193523220044","DOIUrl":"https://doi.org/10.1134/s1023193523220044","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The organic pollutants present in wastewater produce greenhouse gas, CO<sub>2</sub>. Effective utilization of CO<sub>2</sub> into valuable green fuels and its sensing is focused research area. Aiming above, this work is focused on fabrication of electrochemical coupled sensing system for degradation of 4-nitrophenol to CO<sub>2</sub> from wastewater samples, electrochemical reducing system for transforming CO<sub>2</sub> to alcohols and selective amperometric sensing system for quantifying alcohols. A graphene anchored iron oxide electrode was used as an electrocatalyst to facilitate the electrochemical oxidation process to mineralized organic pollutants into water and CO<sub>2</sub>. The CuO film on silicon substrate was used in cathodic compartment for converting CO<sub>2</sub> to methanol and ethanol. Alcohol oxidase modified Au–Cu nanoparticle modified pencil graphite was selective sensing and quantifying the methanol and ethanol. The experimental results revealed that, graphene anchored iron oxide showed maximum degeneration of 4-nitrophenol 72% at 0.9 V. Furthermore, simultaneous reduction of CO<sub>2</sub> at cathode gave good yield of the liquid fuels CH<sub>3</sub>OH and C<sub>2</sub>H<sub>5</sub>OH were 105.0 and 90.0 μmol/L respectively. In addition, Alcohol oxidase modified Au–Cu nanoparticles modified pencil graphite biosensor displays a linear response to both methanol and ethanol in the range 0.250–850 μmol/L with a detection limit of 0.07 μmol/L (S/N = 3) (RSD = 0.004 μA) and 0.7–800 μmol/L with detection limit of 0.068 μmol/L (S/N = 3) (RSD = 0.005 μA) with &gt;40% quantitative yield. The response time is less than 50 s at ambient conditions. Consequently, the ethanol and methanol yield were obtained 30.0%. Our developed three-in-one provides a convenient, simple and reliable method to remediate polluted water and utilizing CO<sub>2</sub> into green fuels.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"17 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139476113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrochemical Synthesis of Tungsten Oxide in Chloride Solutions for Environmental Photocatalysis 在氯化物溶液中电化学合成用于环境光催化的氧化钨
IF 1.2 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-01-16 DOI: 10.1134/s1023193523120157
A. A. Ulyankina, A. D. Tsarenko, T. A. Molodtsova, L. N. Fesenko, N. V. Smirnova
{"title":"Electrochemical Synthesis of Tungsten Oxide in Chloride Solutions for Environmental Photocatalysis","authors":"A. A. Ulyankina, A. D. Tsarenko, T. A. Molodtsova, L. N. Fesenko, N. V. Smirnova","doi":"10.1134/s1023193523120157","DOIUrl":"https://doi.org/10.1134/s1023193523120157","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstrac</h3><p>t—The electrochemical behavior of tungsten in chloride electrolytes with various cationic compositions (Na<sup>+</sup>, K<sup>+</sup>, Li<sup>+</sup>, <span>({text{NH}}_{4}^{ + })</span>) under the action of pulse alternating current is studied. The decisive influence of the nature of the electrolyte on the phase composition of the resulting dispersed products is shown. The use of NH<sub>4</sub>Cl provides the formation of pure crystalline WO<sub>3</sub> with a particle sized 30–35 nm. The photoelectrochemical activity of the synthesized WO<sub>3</sub> in a sulfuric acid medium under simulated solar radiation is studied. The addition of glycerol to H<sub>2</sub>SO<sub>4</sub> causes a cathodic shift in the oxidation onset potential by 0.25 V and a three-fold increase in the maximal photocurrent density. The WO<sub>3</sub>/FTO-photoanode as part of a flow-through photocatalytic fuel cell (with glycerol as fuel and air-breathing Pt/C-cathode) showed excellent stability in acidic environment and the maximal power density of 64.0 μW cm<sup>–2</sup>.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"9 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139476530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transport Properties of La2(WO4)3–Al2O3 Composites La2(WO4)3-Al2O3 复合材料的传输特性
IF 1.2 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-01-16 DOI: 10.1134/s1023193523120091
N. N. Pestereva, A. F. Guseva, N. A. Vasilenko, I. V. Beketov, N. V. Selezneva
{"title":"Transport Properties of La2(WO4)3–Al2O3 Composites","authors":"N. N. Pestereva, A. F. Guseva, N. A. Vasilenko, I. V. Beketov, N. V. Selezneva","doi":"10.1134/s1023193523120091","DOIUrl":"https://doi.org/10.1134/s1023193523120091","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>(1 – φ)La<sub>2</sub>(WO<sub>4</sub>)<sub>3</sub>–φAl<sub>2</sub>O<sub>3</sub> composites are obtained by the solid-phase method (φ is the volume fraction of nanodispersed alumina) and their thermal properties, morphology, and electrical conductivity are studied depending on temperature, pressure of oxygen in the gas phase, and composition. It is found that the conductivity of the composites (1 – φ)La<sub>2</sub>(WO<sub>4</sub>)<sub>3</sub>–φAl<sub>2</sub>O<sub>3</sub> passes through a maximum at φ ~ 0.1 and reaches a value of 7 × 10<sup>–3</sup> S/cm at 1000°C, which is seven times higher than the conductivity of La<sub>2</sub>(WO<sub>4</sub>)<sub>3</sub> at the given temperature. Using the EMF method and measuring the dependence of electrical conductivity on oxygen pressure in the gas phase, the ionic nature of the conductivity of the (1 – φ)La<sub>2</sub>(WO<sub>4</sub>)<sub>3</sub>–φAl<sub>2</sub>O<sub>3</sub> composites is established.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"456 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139475926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Azalea Petal-Derived Porous Carbon–Thionine Based Ratiometric Electrochemical Sensor for the Simultaneous Determination of Ascorbic Acid and Uric Acid 基于杜鹃花瓣的多孔碳-硫氨酸比率电化学传感器用于同时测定抗坏血酸和尿酸
IF 1.2 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-01-16 DOI: 10.1134/s1023193523220032
Biao Jin, Shanshan Liu, Dongri Jin
{"title":"Azalea Petal-Derived Porous Carbon–Thionine Based Ratiometric Electrochemical Sensor for the Simultaneous Determination of Ascorbic Acid and Uric Acid","authors":"Biao Jin, Shanshan Liu, Dongri Jin","doi":"10.1134/s1023193523220032","DOIUrl":"https://doi.org/10.1134/s1023193523220032","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The design of the electrode materials for electrochemical sensors is crucial for the simultaneous fast detection of ascorbic acid (AA) and uric acid (UA). A hierarchical porous carbon material (KACM) was prepared via high-temperature calcination and KOH activation using azalea (a species of rhododendron) biomass as the carbon source. KACM and thionine (Thi) were simultaneously assembled on a glassy carbon electrode (GCE) to construct a porous carbon/thionine ratiometric electrochemical biosensor for the detection of ascorbic acid and uric acid. Electrochemical evaluation showed that the Thi/KACM/GCE has good electrochemical performance, strong catalytic activity toward AA and UA oxidation, and good separation of the two oxidation peaks. Under the optimized conditions, Thi/KACM/GCE has a wide linear range (0.05–9 mM) and low detection limit (6.4 μM for AA and 10 μM for UA). Additionally, the biosensor exhibited good selectivity, stability, and reproducibility. Thi/KACM/GCE was used for the simultaneous detection of AA and UA in human urine with 99.4–101.0% recovery of the compounds. This study reports for the first time the use of azaleas in electrochemical biosensors, and the results show that small changes in the structural properties of biomass materials can affect their electrochemical properties.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"34 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139476165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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