Journal of Applied Electrochemistry最新文献_第5页

Comparative analysis of single-acid and mixed-acid systems as supporting electrolyte for vanadium redox flow battery 钒液流电池支撑电解质单酸与混酸体系的对比分析

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Journal of Applied Electrochemistry Pub Date : 2023-10-21 DOI: 10.1007/s10800-023-01997-7

Mohammad Zarei-Jelyani, Mohammad Mohsen Loghavi, Mohsen Babaiee, Rahim Eqra

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Effect of potential variation on morphology and photoelectrochemical properties of TiO2 nanotube arrays (TNAs) by two-step anodization method 电位变化对两步阳极氧化法制备TiO2纳米管阵列(tna)形貌和光电化学性能的影响

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Journal of Applied Electrochemistry Pub Date : 2023-10-19 DOI: 10.1007/s10800-023-01999-5

Sherly Kasuma Warda Ningsih, Muhammad Iqbal Syauqi, Rahmat Wibowo, Jarnuzi Gunlazuardi

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Preparing an ultra-smooth TaW alloy surface with chemical mechanical polishing via controlling galvanic corrosion 通过控制电偶腐蚀，采用化学机械抛光法制备了超光滑的TaW合金表面

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Journal of Applied Electrochemistry Pub Date : 2023-10-19 DOI: 10.1007/s10800-023-01986-w

Qijian Zhao, Chuandong Tian, Jiaxin Zheng, Pengfei Sun, Liang Jiang, Linmao Qian

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Chemical composition variation of the Ni–W alloy as a function of parameters used in the electrodeposition process Ni-W合金化学成分随电沉积工艺参数的变化规律

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Journal of Applied Electrochemistry Pub Date : 2023-10-17 DOI: 10.1007/s10800-023-01992-y

Cicero Romerio Pereira da Silva, Josiane Dantas Costa, Arthur Filgueira de Almeida, Renato Alexandre Costa de Santana, Ana Regina Nascimento Campos, José Jailson Nicácio Alves, Tiago Felipe de Abreu Santos

引用次数: 1

Investigation of sodium and germanium bi-substituted trimeric strontium silicate (Sr3-3xNa3xSi3-3yGe3yO9-δ; 0 < x < 0.20, y = 0.1) as solid electrolyte 钠锗双取代三聚硅酸锶(Sr3-3xNa3xSi3-3yGe3yO9-δ)的研究0 & lt;x & lt;0.20, y = 0.1)为固体电解质

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Journal of Applied Electrochemistry Pub Date : 2023-10-17 DOI: 10.1007/s10800-023-01994-w

Hera Tarique, Raza Shahid, Pragati Singh, Anjani K. Singh, Raghvendra Pandey, Prabhakar Singh

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Butylated hydroxyanisole nanomolar detection using a molecularly imprinted electrochemical sensor in food samples 应用分子印迹电化学传感器检测食品样品中的丁基羟基异构体纳米摩尔

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Journal of Applied Electrochemistry Pub Date : 2023-10-14 DOI: 10.1007/s10800-023-01996-8

Safaa Hashım Mohammed Albayatı, Pervin Soylu

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Reliable and inexpensive dissolved oxygen sensing materials 可靠和廉价的溶解氧传感材料

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Journal of Applied Electrochemistry Pub Date : 2023-10-13 DOI: 10.1007/s10800-023-02001-y

Alexander Gießel, Nandor Ziebart, Felix Lenk, Thomas Walther

{"title":"Reliable and inexpensive dissolved oxygen sensing materials","authors":"Alexander Gießel, Nandor Ziebart, Felix Lenk, Thomas Walther","doi":"10.1007/s10800-023-02001-y","DOIUrl":"https://doi.org/10.1007/s10800-023-02001-y","url":null,"abstract":"Abstract Bare, non-pretreated platinum wires and screen-printed platinum electrodes were used as both working and counter electrodes in the measurement of dissolved oxygen using a chronoamperometric method. The oxygen reduction current response in the diffusion state was used for a linear determination of air saturation. We evaluated the two different materials in general for their sensing performance such as conditioning time, accuracy, resolution and stability over 13 h of continuous mid-term measurement. A good performance was found for the wire electrodes in terms of accuracy with a current slope of 1.0–1.6 µA (% as)-1 and a resolution of 10–15 nA (Lowest Level of Detection = 0.1% as), but with an unstable current response result over the course of the measurement. The screen-printed electrodes have a resolution of 10–18 nA (Lowest Level of Detection = 0.6–0.8% as) and an accuracy of 620–660 nA (% as)-1 but they showed promising reproducibility and stability. Both materials require several hours of conditioning in the chronoamperometric method before a stable current response is achieved. For biotechnological applications, the platinum screen printed electrodes were evaluated in typical parameter settings (pH 4.0 and 7.4, salinity 0.1 to 10x phosphate buffered saline and temperature 12 to 42 °C) and showed correlations between the response time and stability and the temperature. No correlations were found between salinity, pH and the current response. In this paper, we present inexpensive electrode materials and a simple to implement chronoamperometric method for reliable direct measurement of dissolved oxygen in aqueous media. Graphical abstract","PeriodicalId":14887,"journal":{"name":"Journal of Applied Electrochemistry","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135859086","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}

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Simultaneous determination of Pb(II) and Cd(II) by electrochemical method using ZnO/ErGO-modified electrode ZnO/ ergo修饰电极电化学法同时测定Pb(II)和Cd(II

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Journal of Applied Electrochemistry Pub Date : 2023-10-11 DOI: 10.1007/s10800-023-02005-8

Nguyen Dinh Luyen, Ha Thuy Trang, Pham Yen Khang, Nguyen Mau Thanh, Ho Xuan Anh Vu, Nguyen Hai Phong, Dinh Quang Khieu

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Nickel and/or platinum modified crystalline silicon–carbon composites and their electrochemical behaviour towards the hydrogen evolution reaction 镍和/或铂改性结晶硅碳复合材料及其析氢反应的电化学行为

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Journal of Applied Electrochemistry Pub Date : 2023-10-05 DOI: 10.1007/s10800-023-01988-8

Merna N. Elsodany, M. A. Abdel Rahim, Nasser H. Shalaby, M. A. Sultan

{"title":"Nickel and/or platinum modified crystalline silicon–carbon composites and their electrochemical behaviour towards the hydrogen evolution reaction","authors":"Merna N. Elsodany, M. A. Abdel Rahim, Nasser H. Shalaby, M. A. Sultan","doi":"10.1007/s10800-023-01988-8","DOIUrl":"https://doi.org/10.1007/s10800-023-01988-8","url":null,"abstract":"Abstract Generation of hydrogen is very important, as it is one of the most desired alternatives to fossil fuels. Moreover, designing of cheap and stable electrocatalysts is the task for the efficient generation of hydrogen with reasonable activity. Materials hybridization can be considered a tool for engineering different material properties. Composites of modified silicon such as C–Si, Ni/(C–Si), Pt/(C–Si), and Pt–Ni/(C–Si) were prepared (in weight percent) and studied as electrocatalysts for the hydrogen evolution reaction (HER) in 0.5 M H 2 SO 4 solution. The surface morphologies and chemical compositions of the composites were confirmed using transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive X-ray analysis (EDX), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), X-ray fluorescence analysis (XRF), elemental mapping, and BET surface analysis. The electrochemical measurements of linear sweep voltammetry (LSV), Tafel plots, chronoamperometry, and electrochemical impedance spectroscopy (EIS) were used to study the behaviour of the prepared electrodes toward the hydrogen evolution process. Among the various prepared composites, [7%Pt–3%Ni]/[C–Si (1:1)] composite shows the best catalytic activity with the highest HER rate (940.95 µA cm −2 s −1 ), the lowest overpotential [0.358 V vs. (Ag/AgCl) ≈ 0.161 V vs. (RHE)] at 10 mA cm −2 , and the lowest charge transfer resistance (2.657 Ω) compared to other prepared electrodes. In addition, it gives the highest values of 4.219 × 10 −3 s −1 turn over frequency (TOF) and 642 mA g −1 mass activity. It shows good stability towards the hydrogen evolution reaction as the current density reaches about 34.28 mA cm −2 after 5 h. Graphical abstract","PeriodicalId":14887,"journal":{"name":"Journal of Applied Electrochemistry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135482330","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}

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Light and oxygen caused degradation of carbon nanotubes supported platinum catalyst in storage 光和氧对碳纳米管负载铂催化剂在贮存过程中的降解作用

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Journal of Applied Electrochemistry Pub Date : 2023-10-05 DOI: 10.1007/s10800-023-01973-1

Xiang Li, Lingling Li, Yun Wu, Gengyu Cao

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