Pub Date : 2023-11-03DOI: 10.1007/s10800-023-02003-w
S. Irazoque, A. López-Suárez, C. K. Zagal-Padilla, S. A. Gamboa
Abstract In this study, the electro-oxidation reaction of ethanol over Pd–Cu supported on Cu porphyrin (TPPCu) was investigated. The catalyst was synthesized using the microwave-assisted polyol method and physicochemically characterized by XRD, XPS, SEM, EDS, TEM, EDAX, UV–Vis, FTIR, and RBS. A Cu-enriched catalyst with Cu 3 Pd, Pd,Cu, and TPPCu phases was identified using XRD and XPS. However, according to the RBS results, the catalytic surface was enriched with Pd, indicating that the interaction between TPPCu and Pd–Cu allowed the presence of Pd on the surface, thus enhancing the catalytic response of the material. This synthesis prevented the deprotonation of porphyrin on the electrocatalyst, as confirmed by XPS analysis. Electrochemical studies based on cyclic voltammetry and electrochemical impedance spectroscopy were used to investigate the response of the catalyst to variations in the scan rate and increasing ethanol concentration. The electrochemical response of PdCu/TPPCu improved with an increasing number of cycles, indicating improved mass transport, thus improving its electrochemical response and tolerance to CO contamination. This catalyst exhibited a high electroactive surface area of 49.4 m 2 /g, which could be related to the presence of TPPCu as a support. The behavior of the catalyst on the anode of a fuel cell fed with ethanol, bioethanol, and bioethanol residues was evaluated. Graphical Abstract
{"title":"Synthesis of Pd-Cu/TPPCu electrocatalyst for direct ethanol fuel cell applications","authors":"S. Irazoque, A. López-Suárez, C. K. Zagal-Padilla, S. A. Gamboa","doi":"10.1007/s10800-023-02003-w","DOIUrl":"https://doi.org/10.1007/s10800-023-02003-w","url":null,"abstract":"Abstract In this study, the electro-oxidation reaction of ethanol over Pd–Cu supported on Cu porphyrin (TPPCu) was investigated. The catalyst was synthesized using the microwave-assisted polyol method and physicochemically characterized by XRD, XPS, SEM, EDS, TEM, EDAX, UV–Vis, FTIR, and RBS. A Cu-enriched catalyst with Cu 3 Pd, Pd,Cu, and TPPCu phases was identified using XRD and XPS. However, according to the RBS results, the catalytic surface was enriched with Pd, indicating that the interaction between TPPCu and Pd–Cu allowed the presence of Pd on the surface, thus enhancing the catalytic response of the material. This synthesis prevented the deprotonation of porphyrin on the electrocatalyst, as confirmed by XPS analysis. Electrochemical studies based on cyclic voltammetry and electrochemical impedance spectroscopy were used to investigate the response of the catalyst to variations in the scan rate and increasing ethanol concentration. The electrochemical response of PdCu/TPPCu improved with an increasing number of cycles, indicating improved mass transport, thus improving its electrochemical response and tolerance to CO contamination. This catalyst exhibited a high electroactive surface area of 49.4 m 2 /g, which could be related to the presence of TPPCu as a support. The behavior of the catalyst on the anode of a fuel cell fed with ethanol, bioethanol, and bioethanol residues was evaluated. Graphical Abstract","PeriodicalId":14887,"journal":{"name":"Journal of Applied Electrochemistry","volume":"36 14","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135819898","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}
Pub Date : 2023-11-03DOI: 10.1007/s10800-023-01995-9
Amandeep Kaur, Rakesh Kumar, Ganga Ram Chaudhary, Nirmal Prabhakar
{"title":"Electrochemical determination of 25-hydroxyvitamin D3 using conductive porous template based on gold-modified metal organic framework@mesoporous silica particles","authors":"Amandeep Kaur, Rakesh Kumar, Ganga Ram Chaudhary, Nirmal Prabhakar","doi":"10.1007/s10800-023-01995-9","DOIUrl":"https://doi.org/10.1007/s10800-023-01995-9","url":null,"abstract":"","PeriodicalId":14887,"journal":{"name":"Journal of Applied Electrochemistry","volume":"36 14","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135819895","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}
Pub Date : 2023-11-02DOI: 10.1007/s10800-023-02016-5
Jeffrey Joseph John Jeya Kamaraj, Lawrence Daniel Stephen Tamil, Senthil Pandian Muthu, Ramasamy Perumalsamy
{"title":"Synergistic design of Mo-intercalated NiSe2: a binary transition metal chalcogenide for highly efficient bifunctional seawater electrolysis","authors":"Jeffrey Joseph John Jeya Kamaraj, Lawrence Daniel Stephen Tamil, Senthil Pandian Muthu, Ramasamy Perumalsamy","doi":"10.1007/s10800-023-02016-5","DOIUrl":"https://doi.org/10.1007/s10800-023-02016-5","url":null,"abstract":"","PeriodicalId":14887,"journal":{"name":"Journal of Applied Electrochemistry","volume":"32 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135934160","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}
Pub Date : 2023-11-02DOI: 10.1007/s10800-023-02006-7
K. P. Li, Z. Z. Liu, C. Wang, Y. Q. Zhang, X. B. Yang, B. Zhou, Z. X. Xie, Z. Q. Duan, Y. M. Hu
{"title":"Iron alloying improved electrocatalytic activity of Cu2Cu1−xFexSnS4 counter electrodes in dye-sensitized solar cells","authors":"K. P. Li, Z. Z. Liu, C. Wang, Y. Q. Zhang, X. B. Yang, B. Zhou, Z. X. Xie, Z. Q. Duan, Y. M. Hu","doi":"10.1007/s10800-023-02006-7","DOIUrl":"https://doi.org/10.1007/s10800-023-02006-7","url":null,"abstract":"","PeriodicalId":14887,"journal":{"name":"Journal of Applied Electrochemistry","volume":"3 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135973463","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}
Pub Date : 2023-11-02DOI: 10.1007/s10800-023-02002-x
M. A. Beltrán-Ortega, M. T. Oropeza-Guzmán, J. C. Calva-Yáñez
{"title":"Aiming to a smart agriculture through the electrochemical impedance of a chitosan-molybdate membrane as a function of available phosphate species","authors":"M. A. Beltrán-Ortega, M. T. Oropeza-Guzmán, J. C. Calva-Yáñez","doi":"10.1007/s10800-023-02002-x","DOIUrl":"https://doi.org/10.1007/s10800-023-02002-x","url":null,"abstract":"","PeriodicalId":14887,"journal":{"name":"Journal of Applied Electrochemistry","volume":"24 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135933997","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}
Pub Date : 2023-10-31DOI: 10.1007/s10800-023-02011-w
Harikrishna Kancharla, G. K. Mandal, Nisheeth Kr. Prasad, K. Vishwanath, B. Bhushan, Kirtiratan Godbole, S. S. Singh, K. Mondal
{"title":"Effect of inter-critical annealing atmosphere on microstructure and subsequent corrosion behavior of hot-dip galvanized Mn containing high-strength steel","authors":"Harikrishna Kancharla, G. K. Mandal, Nisheeth Kr. Prasad, K. Vishwanath, B. Bhushan, Kirtiratan Godbole, S. S. Singh, K. Mondal","doi":"10.1007/s10800-023-02011-w","DOIUrl":"https://doi.org/10.1007/s10800-023-02011-w","url":null,"abstract":"","PeriodicalId":14887,"journal":{"name":"Journal of Applied Electrochemistry","volume":"6 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135869725","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}
Pub Date : 2023-10-31DOI: 10.1007/s10800-023-02000-z
Yang-tao Xu, Yin Peng, Jing-min Dai, Hai-yang Du, Liang Pei
{"title":"The effect of lanthanum chloride on the electrocrystallization behavior of cobalt and grain refinement in deposition layers","authors":"Yang-tao Xu, Yin Peng, Jing-min Dai, Hai-yang Du, Liang Pei","doi":"10.1007/s10800-023-02000-z","DOIUrl":"https://doi.org/10.1007/s10800-023-02000-z","url":null,"abstract":"","PeriodicalId":14887,"journal":{"name":"Journal of Applied Electrochemistry","volume":"2009 34","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135813158","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}
Pub Date : 2023-10-27DOI: 10.1007/s10800-023-01998-6
Sumitra Nongthombam, Bibhu P. Swain
{"title":"Hydrothermal synthesis of rGO-TiO2 nanocomposites for electrochemical performance","authors":"Sumitra Nongthombam, Bibhu P. Swain","doi":"10.1007/s10800-023-01998-6","DOIUrl":"https://doi.org/10.1007/s10800-023-01998-6","url":null,"abstract":"","PeriodicalId":14887,"journal":{"name":"Journal of Applied Electrochemistry","volume":"13 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136317829","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}
Pub Date : 2023-10-26DOI: 10.1007/s10800-023-01984-y
Xu Yang-tao, Du Hai-yang, Pei Liang, Dai Jin-ming, Peng Yin
{"title":"Effect of cerium chloride on electric crystallization behavior and grain refinement of electrodeposited copper","authors":"Xu Yang-tao, Du Hai-yang, Pei Liang, Dai Jin-ming, Peng Yin","doi":"10.1007/s10800-023-01984-y","DOIUrl":"https://doi.org/10.1007/s10800-023-01984-y","url":null,"abstract":"","PeriodicalId":14887,"journal":{"name":"Journal of Applied Electrochemistry","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136376392","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}
Pub Date : 2023-10-21DOI: 10.1007/s10800-023-01993-x
V. Čákyová, R. Gorejová, R. Macko, O. Petruš, T. Sopčák, M. Kupková, F. Kaľavský, R. Oriňaková
Abstract Iron-based degradable biomaterials have attracted much attention as next-generation bone implants due to their excellent mechanical properties and good biocompatibility. Many studies are now focusing on the preparation and detailed study of porous versus non-porous degradable materials. Porous degradable biomaterials have many advantages over the non-porous ones owing to their structure, which allows easier bone tissue ingrowth. The aim of this work was to prepare Fe-based biodegradable porous materials in a cost-effective way via powder metallurgy technique using urea space holders. Five different samples with increasing space holder weight ratio (up to 20 wt%) were prepared. Surface morphology and sample structure were studied using the optical microscopy, Raman spectroscopy, and scanning electron microscopy (SEM) with energy-dispersive X-ray analysis (EDX). Electrochemical corrosion rate analysis confirmed that the samples corroded faster with increasing number of pores. With an increasing amount of urea, the number of pores increased proportionally, which can potentially be used to tune the corrosion rate. However, mechanical integrity of the samples was not maintained when more than 10 wt% of space holder was used. Graphical abstract
{"title":"Biodegradable iron-based foams prepared by the space holder technique using urea","authors":"V. Čákyová, R. Gorejová, R. Macko, O. Petruš, T. Sopčák, M. Kupková, F. Kaľavský, R. Oriňaková","doi":"10.1007/s10800-023-01993-x","DOIUrl":"https://doi.org/10.1007/s10800-023-01993-x","url":null,"abstract":"Abstract Iron-based degradable biomaterials have attracted much attention as next-generation bone implants due to their excellent mechanical properties and good biocompatibility. Many studies are now focusing on the preparation and detailed study of porous versus non-porous degradable materials. Porous degradable biomaterials have many advantages over the non-porous ones owing to their structure, which allows easier bone tissue ingrowth. The aim of this work was to prepare Fe-based biodegradable porous materials in a cost-effective way via powder metallurgy technique using urea space holders. Five different samples with increasing space holder weight ratio (up to 20 wt%) were prepared. Surface morphology and sample structure were studied using the optical microscopy, Raman spectroscopy, and scanning electron microscopy (SEM) with energy-dispersive X-ray analysis (EDX). Electrochemical corrosion rate analysis confirmed that the samples corroded faster with increasing number of pores. With an increasing amount of urea, the number of pores increased proportionally, which can potentially be used to tune the corrosion rate. However, mechanical integrity of the samples was not maintained when more than 10 wt% of space holder was used. Graphical abstract","PeriodicalId":14887,"journal":{"name":"Journal of Applied Electrochemistry","volume":"63 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135511706","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：