{"title":"Accurate Estimation of PEMFC State of Health using Modified Hybrid Artificial Neural Network Models","authors":"Hichem Kahia, A. Saadi, Abderrahmane Herbadji, Djamel Herbadji, Haitham Mohamed Ramadhan","doi":"10.14447/jnmes.v26i1.a05","DOIUrl":"https://doi.org/10.14447/jnmes.v26i1.a05","url":null,"abstract":"","PeriodicalId":16447,"journal":{"name":"Journal of New Materials For Electrochemical Systems","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47234129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-26DOI: 10.14447/jnmes.v26i1.a01
Sainadh Singh Kshatri, N. Sireesha, D. Rao, Ranjith Kumar Gatla, T. K. Kumar, P. C. Babu, Swaminathan Saravanan, N. Bhoopal, D. Kumar
{"title":"Reliability Assessment of Hybrid Silicon-Silicon Carbide IGBT Implemented on an Inverter for Photo Voltaic Applications","authors":"Sainadh Singh Kshatri, N. Sireesha, D. Rao, Ranjith Kumar Gatla, T. K. Kumar, P. C. Babu, Swaminathan Saravanan, N. Bhoopal, D. Kumar","doi":"10.14447/jnmes.v26i1.a01","DOIUrl":"https://doi.org/10.14447/jnmes.v26i1.a01","url":null,"abstract":"","PeriodicalId":16447,"journal":{"name":"Journal of New Materials For Electrochemical Systems","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48577959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.14447/jnmes.v25i4.a10
M. Debbab, N. Ghellai, O. Ikumapayi, N. Gabouze, G. Lorenzini, C. Yaddadene, M. Berouaken, Y. Menni
In this work, electrodeposition was used to produce thin zinc oxide layers on n-type silicon substrates. It has been investigated how annealing at 400∘C affects the deposit's morphological and structural characteristics. SEM, X-ray diffraction, and contact angle measurements have all been used to study the morphology and structure of nonannealed and annealed ZnO. Three intense peaks were visible in the XRD patterns of non-annealed ZnO thin films along the (100), (002) and (101) planes, however these peaks' intensities were different in the XRD patterns of annealed ZnO layers. Furthermore, the 2θ diffraction angle shift can be seen in the XRD patterns of annealed and unannealed ZnO layers. The contact angle measurements showed that the nonannealed ZnO layers are hydrophobic; however, at a temperature of 400∘C for annealing, the ZnO layer surface becomes hydrophilic. Finally, SEM data validate the XRD and contact angle findings by showing how ZnO structure changes from a sand rose shape to a granular structure. Additionally, the ZnO/n− Si micro-capacitor device has been developed and impedance spectroscopy (EIS) has been used to evaluate it. Finally, a microcapacitor made of ZnO and n−Si showed a high specific capacitance of 128mF/g.
{"title":"Behavior Study of Annealing Temperature on Microstructure and Wettability of Electrodeposited ZnO Thin Films for Microcapacitor Application","authors":"M. Debbab, N. Ghellai, O. Ikumapayi, N. Gabouze, G. Lorenzini, C. Yaddadene, M. Berouaken, Y. Menni","doi":"10.14447/jnmes.v25i4.a10","DOIUrl":"https://doi.org/10.14447/jnmes.v25i4.a10","url":null,"abstract":"In this work, electrodeposition was used to produce thin zinc oxide layers on n-type silicon substrates. It has been investigated how annealing at 400∘C affects the deposit's morphological and structural characteristics. SEM, X-ray diffraction, and contact angle measurements have all been used to study the morphology and structure of nonannealed and annealed ZnO. Three intense peaks were visible in the XRD patterns of non-annealed ZnO thin films along the (100), (002) and (101) planes, however these peaks' intensities were different in the XRD patterns of annealed ZnO layers. Furthermore, the 2θ diffraction angle shift can be seen in the XRD patterns of annealed and unannealed ZnO layers. The contact angle measurements showed that the nonannealed ZnO layers are hydrophobic; however, at a temperature of 400∘C for annealing, the ZnO layer surface becomes hydrophilic. Finally, SEM data validate the XRD and contact angle findings by showing how ZnO structure changes from a sand rose shape to a granular structure. Additionally, the ZnO/n− Si micro-capacitor device has been developed and impedance spectroscopy (EIS) has been used to evaluate it. Finally, a microcapacitor made of ZnO and n−Si showed a high specific capacitance of 128mF/g.","PeriodicalId":16447,"journal":{"name":"Journal of New Materials For Electrochemical Systems","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41520634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.14447/jnmes.v25i4.a04
I. El-Hallag, M. Ghanem, E. El-Mossalamy, Ahmed R. Tartour
The electrochemical quantification of catechol (CC) was performed via cyclic voltammetry (CV), convolution-deconvolution voltammetry, and differential pulse voltammetry (DPV) at nanostructured mesoporous platinum film electrochemically deposited from a hexagonal liquid crystalline template of C16EO8 surfactant in 1.0 M HClO4.The cyclic voltammograms of catechol produced one oxidative peak in the forward sweep of potential coupled with a reductive peak on the reverse sweep potential. The effect of catechol concentration was examined using the various electrochemical methods mentioned before. The modified platinum electrode exhibits good sensitivity for the determination of catechol compound in 1.0 M HClO4. The best performance was found for i-t curve method developed from cyclic voltammetry of CC. It manifests a linear peak current response over the concentration range of 3 to 50 μM, with a detection limit of 2.11 μM and a quantification limit of 7.04 μM confirming the accuracy and sensitivity of this fast and simple method.
邻苯二酚（CC）的电化学定量是通过循环伏安法（CV）、卷积反褶积伏安法等进行的，以及在1.0 M HClO4中由C16O8表面活性剂的六方液晶模板电化学沉积的纳米结构介孔铂膜上的微分脉冲伏安法（DPV）。邻苯二酚的循环伏安图在电位的正向扫描中产生一个氧化峰，在电位的反向扫描中产生还原峰。采用前面提到的各种电化学方法检测了邻苯二酚浓度的影响。修饰铂电极对1.0M盐酸中邻苯二酚类化合物的测定具有良好的灵敏度。由CC循环伏安法开发的i-t曲线法性能最好。它在3至50μM的浓度范围内表现出线性峰值电流响应，检测限为2.11μM，定量限为7.04μM，证实了该快速简便方法的准确性和灵敏度。
{"title":"Quantitative Determination of Catechol via Cyclic Voltammetry, Convolution-Deconvolution Voltammetry, and Differential Pulse Voltammetry at a Mesoporous Nanostructured Platinum Electrode","authors":"I. El-Hallag, M. Ghanem, E. El-Mossalamy, Ahmed R. Tartour","doi":"10.14447/jnmes.v25i4.a04","DOIUrl":"https://doi.org/10.14447/jnmes.v25i4.a04","url":null,"abstract":"The electrochemical quantification of catechol (CC) was performed via cyclic voltammetry (CV), convolution-deconvolution voltammetry, and differential pulse voltammetry (DPV) at nanostructured mesoporous platinum film electrochemically deposited from a hexagonal liquid crystalline template of C16EO8 surfactant in 1.0 M HClO4.The cyclic voltammograms of catechol produced one oxidative peak in the forward sweep of potential coupled with a reductive peak on the reverse sweep potential. The effect of catechol concentration was examined using the various electrochemical methods mentioned before. The modified platinum electrode exhibits good sensitivity for the determination of catechol compound in 1.0 M HClO4. The best performance was found for i-t curve method developed from cyclic voltammetry of CC. It manifests a linear peak current response over the concentration range of 3 to 50 μM, with a detection limit of 2.11 μM and a quantification limit of 7.04 μM confirming the accuracy and sensitivity of this fast and simple method.","PeriodicalId":16447,"journal":{"name":"Journal of New Materials For Electrochemical Systems","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44363210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.14447/jnmes.v25i4.a09
Seiny Roger N’Dri, M. Coulibaly, N. A. Yao, Drissa Bamba, Guessan Elogne Zoro
This study is on the optimisation of the interface of the p-silicin/indigo camine for electrochemical sensors applications. In this study carried out in cyclic voltammetry, the p-type silicon paste electrode is in contact with the indigo carmine solution at pH=10. The nature of the current in the silicon / aqueous alkaline solution of indigo carmine junction was determined. The cyclic voltammogram is correlated by an affine straight-line, which allows the determination of the capacitance of the junction at a frequency of 50 Hz. Curve C-2=f(E) obtained is not linear. It is of Gaussian form. This form reflects that the ionization of the deep levels of the semiconductor began before the depopulation of the valence band. This study allows to determine the surface potential (Vs=-0,4V) and the flat band potential (VBP=-1,50V). The fermi potential is equal to 1, 50 These results are indications that this interface could not be used as an electrochemical sensor under these conditions.
{"title":"Study of the Differential Capacitance of Space Charge at the Interface of the p-Silicon Paste Electrode /Carmin Indigo Electrolyte for Electrochemical Sensor Applications","authors":"Seiny Roger N’Dri, M. Coulibaly, N. A. Yao, Drissa Bamba, Guessan Elogne Zoro","doi":"10.14447/jnmes.v25i4.a09","DOIUrl":"https://doi.org/10.14447/jnmes.v25i4.a09","url":null,"abstract":"This study is on the optimisation of the interface of the p-silicin/indigo camine for electrochemical sensors applications. In this study carried out in cyclic voltammetry, the p-type silicon paste electrode is in contact with the indigo carmine solution at pH=10. The nature of the current in the silicon / aqueous alkaline solution of indigo carmine junction was determined. The cyclic voltammogram is correlated by an affine straight-line, which allows the determination of the capacitance of the junction at a frequency of 50 Hz. Curve C-2=f(E) obtained is not linear. It is of Gaussian form. This form reflects that the ionization of the deep levels of the semiconductor began before the depopulation of the valence band. This study allows to determine the surface potential (Vs=-0,4V) and the flat band potential (VBP=-1,50V). The fermi potential is equal to 1, 50 These results are indications that this interface could not be used as an electrochemical sensor under these conditions.","PeriodicalId":16447,"journal":{"name":"Journal of New Materials For Electrochemical Systems","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48056496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.14447/jnmes.v25i4.a11
Bo Dong, Yurong Li, Xinyue Li, Zhiting Chen, Yi Ge, Rui Zhang
Compared with a microbial fuel cell (MFC) of single flora, the MFC of mixed flora provide much better denitrification and electricity generation performance. Therefore, in-depth analysis of the kinetic features such as the structures of various types of microflora in MFCs is of important theoretical and practical significance. There is little existing research on the electricity generation and pollutant removal process of cathode microorganisms and the functions of microbial flora. To this end, this paper constructs an MFC anaerobic-aerobic coupled denitrification system and studies its performance enhancement method. First, the basic principle of MFC biological denitrification was expounded, the kinetics was introduced into the analysis of the reaction between the MFC microorganisms and pollutants, and the migration and transformation occurring in the reaction process and the mechanism of transformation speed changes were revealed. Then, the analysis and calculation methods for the electrochemical parameters and microbial diversity index in MFC were explained in detail, and the experimental results and analysis conclusions were given.
{"title":"Construction of an MFC Anaerobic-Aerobic Coupled Denitrification System and Its Performance Enhancement Method","authors":"Bo Dong, Yurong Li, Xinyue Li, Zhiting Chen, Yi Ge, Rui Zhang","doi":"10.14447/jnmes.v25i4.a11","DOIUrl":"https://doi.org/10.14447/jnmes.v25i4.a11","url":null,"abstract":"Compared with a microbial fuel cell (MFC) of single flora, the MFC of mixed flora provide much better denitrification and electricity generation performance. Therefore, in-depth analysis of the kinetic features such as the structures of various types of microflora in MFCs is of important theoretical and practical significance. There is little existing research on the electricity generation and pollutant removal process of cathode microorganisms and the functions of microbial flora. To this end, this paper constructs an MFC anaerobic-aerobic coupled denitrification system and studies its performance enhancement method. First, the basic principle of MFC biological denitrification was expounded, the kinetics was introduced into the analysis of the reaction between the MFC microorganisms and pollutants, and the migration and transformation occurring in the reaction process and the mechanism of transformation speed changes were revealed. Then, the analysis and calculation methods for the electrochemical parameters and microbial diversity index in MFC were explained in detail, and the experimental results and analysis conclusions were given.","PeriodicalId":16447,"journal":{"name":"Journal of New Materials For Electrochemical Systems","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41563253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.14447/jnmes.v25i4.a05
A. Usman, A. Aris, B. A. Labaran, M. Darwish, A. H. Jagaba
In this study, ZnO/TiO2 was synthesized using the sol-gel method. The effect of calcination temperature was investigated on the morphology, crystal size, and influence on the photoreduction of selenite from the aqueous phase. The ZnO/TiO2 was calcined at 150 C, 350 C, and 500 C for 2 hours. The samples were characterized using SEM/EDX, XRD, and FT-IR for morphology/elemental composition, crystal structure/size, and functional group. The crystallite sizes were found to be 21.61 nm, 22.22 nm, and 24.80 nm for the temperatures, respectively. The composite morphology was found to be agglomerated granular particles that increase in agglomeration as the temperature increases. EDS results give the composition of Ti, Zn, and O2 in all samples, indicating the presence of ZnO and TiO2. XRD spectra were used to confirm the hexagonal and tetrahedral phase structure of the ZnO and TiO2. Photocatalysis experiment was conducted at pH 4 and 1 mg/L ZnO/TiO2 with 20 ppm initial concentration for 22 hrs under UV- irradiation. The catalyst calcined at 150 C showed 100% photoreduction of selenite to total selenium, while samples calcined at 350 C and 500 C showed 79% and 17%, respectively.
{"title":"Effect of Calcination Temperature on the Morphology, Crystallinity, and Photocatalytic Activity of ZnO/TiO2 in Selenite Photoreduction from Aqueous Phase","authors":"A. Usman, A. Aris, B. A. Labaran, M. Darwish, A. H. Jagaba","doi":"10.14447/jnmes.v25i4.a05","DOIUrl":"https://doi.org/10.14447/jnmes.v25i4.a05","url":null,"abstract":"In this study, ZnO/TiO2 was synthesized using the sol-gel method. The effect of calcination temperature was investigated on the morphology, crystal size, and influence on the photoreduction of selenite from the aqueous phase. The ZnO/TiO2 was calcined at 150 C, 350 C, and 500 C for 2 hours. The samples were characterized using SEM/EDX, XRD, and FT-IR for morphology/elemental composition, crystal structure/size, and functional group. The crystallite sizes were found to be 21.61 nm, 22.22 nm, and 24.80 nm for the temperatures, respectively. The composite morphology was found to be agglomerated granular particles that increase in agglomeration as the temperature increases. EDS results give the composition of Ti, Zn, and O2 in all samples, indicating the presence of ZnO and TiO2. XRD spectra were used to confirm the hexagonal and tetrahedral phase structure of the ZnO and TiO2. Photocatalysis experiment was conducted at pH 4 and 1 mg/L ZnO/TiO2 with 20 ppm initial concentration for 22 hrs under UV- irradiation. The catalyst calcined at 150 C showed 100% photoreduction of selenite to total selenium, while samples calcined at 350 C and 500 C showed 79% and 17%, respectively.","PeriodicalId":16447,"journal":{"name":"Journal of New Materials For Electrochemical Systems","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42284874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.14447/jnmes.v25i4.a03
Areej Alzahrani, S. Hassan, M. H. Nazir, A. Zafar, S. Zaidi
Water oxidation could be helpful to have a generation of useful oxidant known as hydrogen peroxide (H2O2) via electrochemical route. A defined structured of molybdenum oxide based electrode was synthesised by a thermal compression treatment over PV-15 composite coating. The coating was then employed for electrochemical water splitting at constant potential electrolysis while the quantities of peroxide of hydrogen produced was measured in an advanced type of cell assembly. The overall findings showed that the confined values of applied potential for H2O2 production are anodic constant potentials of +0.3 V, +0.4 V and +0.5 V vs. Hg/HgO and synthesised peroxide of hydrogen up to 13 ppm in an advanced type of cell assembly.
{"title":"Water Oxidation for Anodic Generation of Hydrogen Peroxide by Using Transition Metal Oxide Based Catalyst","authors":"Areej Alzahrani, S. Hassan, M. H. Nazir, A. Zafar, S. Zaidi","doi":"10.14447/jnmes.v25i4.a03","DOIUrl":"https://doi.org/10.14447/jnmes.v25i4.a03","url":null,"abstract":"Water oxidation could be helpful to have a generation of useful oxidant known as hydrogen peroxide (H2O2) via electrochemical route. A defined structured of molybdenum oxide based electrode was synthesised by a thermal compression treatment over PV-15 composite coating. The coating was then employed for electrochemical water splitting at constant potential electrolysis while the quantities of peroxide of hydrogen produced was measured in an advanced type of cell assembly. The overall findings showed that the confined values of applied potential for H2O2 production are anodic constant potentials of +0.3 V, +0.4 V and +0.5 V vs. Hg/HgO and synthesised peroxide of hydrogen up to 13 ppm in an advanced type of cell assembly.","PeriodicalId":16447,"journal":{"name":"Journal of New Materials For Electrochemical Systems","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46432347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.14447/jnmes.v25i4.a02
A. Abahussain, S. Zaidi, M. H. Nazir, M. Raza, S. Hassan
Research is being carried out worldwide for possible treatment of cancer. Graphene has been studied as a drug carrier for various cancer-related drugs [1-2]. In the present work, we apply theoretical models to study the electrons interactions, thermodynamic properties, and solvent interaction of the drug-carrier configuration. The stability of graphene means that it can be a nanocarrier in the biological system. The simulations result shows that graphene provides a stable base, where gemcitabine is a highly dissolvable and reactive drug. The adsorption of gemcitabine on the graphene was physical. The drug carrier configuration formed a highly impactful drug-carrier design.
{"title":"A DFT Study of Graphene as a Drug Carrier for Gemcitabine Anticancer Drug","authors":"A. Abahussain, S. Zaidi, M. H. Nazir, M. Raza, S. Hassan","doi":"10.14447/jnmes.v25i4.a02","DOIUrl":"https://doi.org/10.14447/jnmes.v25i4.a02","url":null,"abstract":"Research is being carried out worldwide for possible treatment of cancer. Graphene has been studied as a drug carrier for various cancer-related drugs [1-2]. In the present work, we apply theoretical models to study the electrons interactions, thermodynamic properties, and solvent interaction of the drug-carrier configuration. The stability of graphene means that it can be a nanocarrier in the biological system. The simulations result shows that graphene provides a stable base, where gemcitabine is a highly dissolvable and reactive drug. The adsorption of gemcitabine on the graphene was physical. The drug carrier configuration formed a highly impactful drug-carrier design.","PeriodicalId":16447,"journal":{"name":"Journal of New Materials For Electrochemical Systems","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46556356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-31DOI: 10.14447/jnmes.v25i4.a07
R. Hameed, A. Essa, A. Nassar, M. Badr, Bader I Huwaimel, S. Al-Mhyawi, F. Alshammary, Anas Abu Seni, M. Abdallah
Lioresal is a muscle relaxer and an antispasmodic agent, known as Lioresal. The active ingredient is β-(Aminomethyl)-p-chlorohydrocinnamic acid, a racemic mixture of the R,(-) and S, (+) isomers. It affects directly the spinal cord with adverse effects including drowsiness, dizziness, weakness, fatigue, headache, trouble sleeping, nausea and vomiting, urinary retention, or constipation. Therefore, the accumulation of expired or unused Lioresal in our home is so dangerous and harmful for our children. The present work introduces an idea for using expired Lioresal as a corrosion inhibitor for steel in 1.0 M H2SO4. The effect of both concentration and temperature were studied. The inhibition efficiency was found to increase with concentration and decreased with rising temperature. Chemical, electrochemical, and analytical techniques, namely, gravimetric, thermometric, gasometric, acidimetric, AAS, and potentiodynamic polarization were used to evaluate the inhibition action of the expired Lioresal drugs. The inhibition performance is due to the adsorption and adhesion of drugs constituent molecules on the steel surface. The adsorption was found to obey Langmuir isotherm. The surface area available for the anodic dissolution of iron and cathodic hydrogen evolution process diminishes without changing the reaction mechanism. The values of Ecorr. readings slowly decrease to negative values, showing that these inhibitors are mixed-type inhibitors mainly cathodic inhibitors. The data obtained from different techniques are in good agreement with each other. Electrochemical and analytical Techniques are efficient and accurate in the determination of the corrosion rate and inhibition performance of expired drugs in an aqueous medium.
缬草醛是一种肌肉松弛剂和抗痉挛剂，被称为缬草醛。有效成分是β-(氨基甲基)-对氯氢肉桂酸，是R，(-)和S，(+)异构体的外消旋混合物。它直接影响脊髓，产生不良反应，包括嗜睡、头晕、虚弱、疲劳、头痛、失眠、恶心和呕吐、尿潴留或便秘。因此，在我们的家中积累过期或未使用的乳香对我们的孩子来说是非常危险和有害的。本文介绍了在1.0 M H2SO4中使用过期硫脲作为钢的缓蚀剂的想法。研究了浓度和温度的影响。缓蚀效果随浓度的增加而增加，随温度的升高而降低。采用化学、电化学和分析技术，即重量法、温度法、气相法、酸度法、原子吸收光谱法和动电位极化法评价过期药物的抑制作用。缓蚀性能是由于药物成分分子在钢表面的吸附和粘附。吸附过程服从Langmuir等温线。在不改变反应机理的情况下，可用于铁的阳极溶解和阴极析氢过程的表面积减小。Ecorr的值。读数慢慢下降到负值，表明这些抑制剂是混合型抑制剂，主要是阴极抑制剂。不同技术所得数据吻合较好。电化学和分析技术在测定过期药物在水介质中的腐蚀速率和缓蚀性能方面是有效和准确的。
{"title":"Chemical and Electrochemical Studies on Expired Lioresal Drugs as Corrosion Inhibitors for Carbon Steel in Sulfuric Acid","authors":"R. Hameed, A. Essa, A. Nassar, M. Badr, Bader I Huwaimel, S. Al-Mhyawi, F. Alshammary, Anas Abu Seni, M. Abdallah","doi":"10.14447/jnmes.v25i4.a07","DOIUrl":"https://doi.org/10.14447/jnmes.v25i4.a07","url":null,"abstract":"Lioresal is a muscle relaxer and an antispasmodic agent, known as Lioresal. The active ingredient is β-(Aminomethyl)-p-chlorohydrocinnamic acid, a racemic mixture of the R,(-) and S, (+) isomers. It affects directly the spinal cord with adverse effects including drowsiness, dizziness, weakness, fatigue, headache, trouble sleeping, nausea and vomiting, urinary retention, or constipation. Therefore, the accumulation of expired or unused Lioresal in our home is so dangerous and harmful for our children. The present work introduces an idea for using expired Lioresal as a corrosion inhibitor for steel in 1.0 M H2SO4. The effect of both concentration and temperature were studied. The inhibition efficiency was found to increase with concentration and decreased with rising temperature. Chemical, electrochemical, and analytical techniques, namely, gravimetric, thermometric, gasometric, acidimetric, AAS, and potentiodynamic polarization were used to evaluate the inhibition action of the expired Lioresal drugs. The inhibition performance is due to the adsorption and adhesion of drugs constituent molecules on the steel surface. The adsorption was found to obey Langmuir isotherm. The surface area available for the anodic dissolution of iron and cathodic hydrogen evolution process diminishes without changing the reaction mechanism. The values of Ecorr. readings slowly decrease to negative values, showing that these inhibitors are mixed-type inhibitors mainly cathodic inhibitors. The data obtained from different techniques are in good agreement with each other. Electrochemical and analytical Techniques are efficient and accurate in the determination of the corrosion rate and inhibition performance of expired drugs in an aqueous medium.","PeriodicalId":16447,"journal":{"name":"Journal of New Materials For Electrochemical Systems","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46473057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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