V. Seznec, Premkumar Senguttuvan, D. Larcher, J. Tarascon
{"title":"Electrochemical Reactivity of KSi and NaSi Zintl Phases with Lithium","authors":"V. Seznec, Premkumar Senguttuvan, D. Larcher, J. Tarascon","doi":"10.1149/2.0021510EEL","DOIUrl":"https://doi.org/10.1149/2.0021510EEL","url":null,"abstract":"","PeriodicalId":11470,"journal":{"name":"ECS Electrochemistry Letters","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1149/2.0021510EEL","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64308590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhiqiang Li, Xing Lu, Bo-qiong Li, L. Bai, Qi Wang
were masked by epoxy resin and the exposed end was ground with sand paper and polished up to 1 μm with diamond paste. Electrochemical measurement was carried out in a traditional three-electrode cell in PARSTAT 2273 electrochemical workstation. The working electrode, assistant electrode and reference electrode were the alloy, Pt electrode and saturated KCl calomel electrode, respectively. The applied potential is relative to the saturated KCl calomel electrode potential (SCE). 0.9 M KOH aqueous solution was utilized to estimate the active surface area of electrochemical catalysts. Electrochemical oxidation of formaldehyde was carried out by cyclic voltammetry in the electrolyte containing 0.9 M KOH and 0.3 M HCHO with scanning rate of 20 mV/s. The surface morphology of nanoporous silver was characterized by Zeiss Supra 55 fieldemission gun scanning electron microscope (FESEM).
用环氧树脂遮盖，露出的一端用砂纸研磨，并用金刚石膏打磨至1 μm。电化学测量在PARSTAT 2273电化学工作站的传统三电极电池中进行。工作电极、辅助电极和参比电极分别为合金电极、铂电极和饱和氯化钾甘汞电极。施加电位与饱和KCl甘汞电极电位(SCE)有关。利用0.9 M KOH水溶液估算了电化学催化剂的活性表面积。在含0.9 M KOH和0.3 M HCHO的电解液中，采用循环伏安法对甲醛进行了电化学氧化，扫描速率为20 mV/s。采用蔡司Supra 55场发射枪扫描电镜(FESEM)对纳米多孔银的表面形貌进行了表征。
{"title":"Research on Electrochemical Oxidation of Formaldehyde on the Nanoporous Silver Electrode in Alkaline Solution","authors":"Zhiqiang Li, Xing Lu, Bo-qiong Li, L. Bai, Qi Wang","doi":"10.1149/2.0091506EEL","DOIUrl":"https://doi.org/10.1149/2.0091506EEL","url":null,"abstract":"were masked by epoxy resin and the exposed end was ground with sand paper and polished up to 1 μm with diamond paste. Electrochemical measurement was carried out in a traditional three-electrode cell in PARSTAT 2273 electrochemical workstation. The working electrode, assistant electrode and reference electrode were the alloy, Pt electrode and saturated KCl calomel electrode, respectively. The applied potential is relative to the saturated KCl calomel electrode potential (SCE). 0.9 M KOH aqueous solution was utilized to estimate the active surface area of electrochemical catalysts. Electrochemical oxidation of formaldehyde was carried out by cyclic voltammetry in the electrolyte containing 0.9 M KOH and 0.3 M HCHO with scanning rate of 20 mV/s. The surface morphology of nanoporous silver was characterized by Zeiss Supra 55 fieldemission gun scanning electron microscope (FESEM).","PeriodicalId":11470,"journal":{"name":"ECS Electrochemistry Letters","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1149/2.0091506EEL","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64336592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
There is a need to reduce the reliance on finite energy resources such as fossil fuels used in energy production. Burning of fossil fuels produces green house gases such as CO2 which may be directly linked to global warming and severe weather conditions. Furthermore, fossil fuels are costly. 1 Alternative energy, such as solar and wind, can be unstable for everyday use. Advanced storage technologies such as redox flow batteries (RFB) are being investigated as solutions because the electrolyte can be charged and stored for later usage during which the battery is discharged. This allows the battery to be very versatile in small-scale and large-scale operations because it allows for consistent energy distribution and management across the entire day. RFB presents a potentially cheap and nontoxic option of using more renewable energy resources. In addition, it offers megawatt storage capacity depending on the electrolyte used. 1
{"title":"Influence of Mixed Electrolyte on the Performance of Iron-Ion/Hydrogen Redox Flow Battery","authors":"V. Watson, De Nguyen, Edward E. Effiong, E. Kalu","doi":"10.1149/2.0091507EEL","DOIUrl":"https://doi.org/10.1149/2.0091507EEL","url":null,"abstract":"There is a need to reduce the reliance on finite energy resources such as fossil fuels used in energy production. Burning of fossil fuels produces green house gases such as CO2 which may be directly linked to global warming and severe weather conditions. Furthermore, fossil fuels are costly. 1 Alternative energy, such as solar and wind, can be unstable for everyday use. Advanced storage technologies such as redox flow batteries (RFB) are being investigated as solutions because the electrolyte can be charged and stored for later usage during which the battery is discharged. This allows the battery to be very versatile in small-scale and large-scale operations because it allows for consistent energy distribution and management across the entire day. RFB presents a potentially cheap and nontoxic option of using more renewable energy resources. In addition, it offers megawatt storage capacity depending on the electrolyte used. 1","PeriodicalId":11470,"journal":{"name":"ECS Electrochemistry Letters","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1149/2.0091507EEL","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64336699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Watanabe, Y. Kumazaki, Zenji Yatabe, Taketomo Sato
We investigated the structural features of gallium-nitride-porous structures formed using the photo-assisted electrochemical process in the back-side illumination (BSI) mode. The pore diameter and depth were strongly affected by the direction of illumination, where higher controllability was achieved compared with front-side illumination. The spectroscopic measurements revealed that illumination with photon energy below the bulk bandgap plays an important role in pore formation. We propose a formation model by considering the Franz-Keldysh effect that can consistently explain the obtained experimental data in which anodic etching occurs only at the pore tips under the high electric field induced in the depletion region.
{"title":"Formation of GaN-Porous Structures Using Photo-Assisted Electrochemical Process in Back-Side Illumination Mode","authors":"A. Watanabe, Y. Kumazaki, Zenji Yatabe, Taketomo Sato","doi":"10.1149/2.0031505EEL","DOIUrl":"https://doi.org/10.1149/2.0031505EEL","url":null,"abstract":"We investigated the structural features of gallium-nitride-porous structures formed using the photo-assisted electrochemical process in the back-side illumination (BSI) mode. The pore diameter and depth were strongly affected by the direction of illumination, where higher controllability was achieved compared with front-side illumination. The spectroscopic measurements revealed that illumination with photon energy below the bulk bandgap plays an important role in pore formation. We propose a formation model by considering the Franz-Keldysh effect that can consistently explain the obtained experimental data in which anodic etching occurs only at the pore tips under the high electric field induced in the depletion region.","PeriodicalId":11470,"journal":{"name":"ECS Electrochemistry Letters","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1149/2.0031505EEL","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64312506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ming Zhao, Wang Xueliang, Song Hui, Jian-guo Li, G. He, Y. Gui, W. Feng
{"title":"Fabrication of a Superhydrophobic Phosphate/Fatty-Acid Salt Compound Coating on Magnesium Alloy","authors":"Ming Zhao, Wang Xueliang, Song Hui, Jian-guo Li, G. He, Y. Gui, W. Feng","doi":"10.1149/2.0051505EEL","DOIUrl":"https://doi.org/10.1149/2.0051505EEL","url":null,"abstract":"","PeriodicalId":11470,"journal":{"name":"ECS Electrochemistry Letters","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1149/2.0051505EEL","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64320186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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