Journal of electrochemical science and technology最新文献_第7页

Retraction Note: Prelithiation of Alpha Phase Nanosheet-Type VOPO4·2H2O Anode for Lithium-Ion Batteries 注:α相纳米片型VOPO4·2H2O锂离子电池负极的预锂化

IF 3.7 4区工程技术

Journal of electrochemical science and technology Pub Date : 2022-05-31 DOI: 10.33961/jecst.2021.00577.r1

A. Tron, J. Mun

引用次数: 0

Mass Transport Properties and Influence of Natural Convection for Voltammetry at the Agarose Hydrogel Interface 琼脂糖水凝胶界面的质量传递性质及自然对流对伏安法的影响

IF 3.7 4区工程技术

Journal of electrochemical science and technology Pub Date : 2022-05-12 DOI: 10.33961/jecst.2022.00129

Byung-Kwon Kim, Kyungsoon Park

引用次数: 4

Preparation of rGO-S-CPEs Composite Cathode and Electrochemical Performance of All-Solid-State Lithium-Sulfur Battery rGO-S-CPEs复合阴极的制备及全固态锂硫电池的电化学性能

IF 3.7 4区工程技术

Journal of electrochemical science and technology Pub Date : 2022-05-12 DOI: 10.33961/jecst.2022.00143

Fei Chen, Gang Zhang, Yiluo Zhang, Shiyu Cao, Jun Li

{"title":"Preparation of rGO-S-CPEs Composite Cathode and Electrochemical Performance of All-Solid-State Lithium-Sulfur Battery","authors":"Fei Chen, Gang Zhang, Yiluo Zhang, Shiyu Cao, Jun Li","doi":"10.33961/jecst.2022.00143","DOIUrl":"https://doi.org/10.33961/jecst.2022.00143","url":null,"abstract":"The application of polymer composite electrolyte in all-solid-state lithium-sulfur battery (ASSLSBs) can guarantee high energy density and improve the interface contact between electrolyte and electrode, which has a broader application pros-pect. However, the inherent insulation of the sulfur-cathode leads to a low electron/ion transfer rate. Carbon materials with high electronic conductivity and electrolyte materials with high ionic conductivity are usually selected to improve the elec-tron/ion conduction of the composite cathode. In this work, PEO-LiTFSI-LLZO composite polymer electrolyte (CPE) with high ionic conductivity was prepared. The ionic conductivity was 1.16×10 -4 and 7.26×10 -4 S cm -1 at 20 o C and 60 o C, respectively. Meanwhile, the composite sulfur cathode was prepared with Sulfur, reduced graphene oxide and composite polymer electrolyte slurry (S-rGO-CPEs). In addition to improving the ion conductivity in the cathode, CPEs also replaces the role of binder. The influence of different contents of CPEs in the cathode material on the performance of the constructed battery was investigated. The results show that the electrochemical performance of the all-solid-state lithium-sulfur battery is the best when the content of the composite electrolyte in the cathode is 40%. Under the condition of 0.2C and 45 o C, the charging and discharging capacity of the first cycle is 923 mAh g -1 , and the retention capacity is 653 mAh g -1 after 50 cycles.","PeriodicalId":15542,"journal":{"name":"Journal of electrochemical science and technology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2022-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43962971","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: 1

Thermally Crosslinked Polyimide Binders for Si-alloy Anodes in Li-ion Batteries 锂离子电池硅合金阳极用热交联聚酰亚胺粘合剂

IF 3.7 4区工程技术

Journal of electrochemical science and technology Pub Date : 2022-05-12 DOI: 10.33961/jecst.2021.01018

Hyeong-Seok Chang, Sanghoon Ji, Miso Rho, Byoung-Min Lee, Sung‐Soo Kim, Jae‐Hak Choi

引用次数: 2

Electrochemical Impedance Spectroscopy (EIS) Performance Analysis and Challenges in Fuel Cell Applications 电化学阻抗谱（EIS）性能分析及其在燃料电池应用中的挑战

IF 3.7 4区工程技术

Journal of electrochemical science and technology Pub Date : 2022-05-04 DOI: 10.33961/jecst.2021.01263

Bhavya Padha, S. Verma, P. Mahajan, S. Arya

引用次数: 12

Electrochemical Advanced Oxidation of Lamotrigine at Ti/DSA (Ta2O5-Ir2O5) and Stainless Steel Anodes 拉莫三嗪在Ti/DSA (Ta2O5-Ir2O5)和不锈钢阳极上的电化学高级氧化

IF 3.7 4区工程技术

Journal of electrochemical science and technology Pub Date : 2022-04-22 DOI: 10.33961/jecst.2021.01074

V. Meena, H. R. Ghatak

{"title":"Electrochemical Advanced Oxidation of Lamotrigine at Ti/DSA (Ta2O5-Ir2O5) and Stainless Steel Anodes","authors":"V. Meena, H. R. Ghatak","doi":"10.33961/jecst.2021.01074","DOIUrl":"https://doi.org/10.33961/jecst.2021.01074","url":null,"abstract":"The study presents kinetics of degradation and mineralization of an anti-epileptic drug Lamotrigine (LAM) in the aqueous matrix by electrochemical advanced oxidation process (EAOP) on Ti/DSA (Ta 2 O 5 -Ir 2 O 5 ) and Stainless Steel (SS) anodes using sodium sulphate as supporting electrolyte. On both the anodes, kinetic behaviour was pseudo-first-order for degradation as well as mineralization of LAM. On Ti/DSA anode, maximum LAM degradation of 75.42% was observed at an associated specific charge of 3.1 (Ah/litre) at a current density of 1.38 mA/cm 2 and 100 ppm Na 2 SO 4 concentration. Maximum mineralization attained was 44.83% at an associated specific charge of 3.1 (Ah/litre) at a current density of 1.38 mA/ cm 2 and 50 ppm concentration of Na 2 SO 4 with energy consumption of 2942.71 kWh/kgTOC. Under identical conditions on SS anode, a maximum of 98.92% LAM degradation was marked after a specific charge (Q) of 3.1 (Ah/litre) at a current density of 1.38 mA/cm 2 and 100 ppm concentration of Na 2 SO 4 . Maximum LAM mineralization on SS anode was 98.53%, marked at a specific charge of 3.1 (Ah/litre) at a current density of 1.38 mA/cm 2 and 75 ppm concentration of Na 2 SO 4 , with energy consumption of 1312.17 kWh/kgTOC. Higher Mineralization Current Efficiency (MCE) values were attained for EAOP on SS anode for both degradation and mineralization due to occurrence of combined electro-oxidation and elec-tro-coagulation process in comparison to EAOP on Ti/DSA anode due to occurrence of lone electro-oxidation process.","PeriodicalId":15542,"journal":{"name":"Journal of electrochemical science and technology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43004417","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: 2

Boosting Power Generation by Sediment Microbial Fuel Cell in Oil-Contaminated Sediment Amended with Gasoline/Kerosene 油质沉积物微生物燃料电池在汽油/煤油改性油质沉积物中的增强型发电

IF 3.7 4区工程技术

Journal of electrochemical science and technology Pub Date : 2022-04-22 DOI: 10.33961/jecst.2022.00045

E. Aleman-Gama, Alan J. Cornejo-Martell, S. Kamaraj, K. Juárez, S. Silva-Martínez, A. Alvarez‐Gallegos

{"title":"Boosting Power Generation by Sediment Microbial Fuel Cell in Oil-Contaminated Sediment Amended with Gasoline/Kerosene","authors":"E. Aleman-Gama, Alan J. Cornejo-Martell, S. Kamaraj, K. Juárez, S. Silva-Martínez, A. Alvarez‐Gallegos","doi":"10.33961/jecst.2022.00045","DOIUrl":"https://doi.org/10.33961/jecst.2022.00045","url":null,"abstract":"The high internal resistance (R int ) that develops across the sediment microbial fuel cells (SMFC) limits their power production (~4/10 mW m -2 ) that can be recovered from an initial oil-contaminated sediment (OCS). In the anolyte, R int is related to poor biodegradation activity, quality and quantity of contaminant content in the sediment and anode material. While on the catholyte, R int depends on the properties of the catholyte, the oxygen reduction reaction (ORR), and the cathode material. In this work, the main factors limiting the power output of the SMFC have been minimized. The power output of the SMFC was increased (47 times from its initial value, ~4 mW m -2 ) minimizing the SMFC R int (28 times from its initial value, 5000 ohms), following the main modifications. Anolyte: the initial OCS was amended with several amounts of gasoline and kerosene. The best anaerobic microbial activity of indigenous populations was better adapted (without more culture media) to 3 g of kerosene. Catholyte: ORR was catalyzed in birnessite/carbon fabric (CF)-cathode at pH 2, 0.8 M Na 2 SO 4 . At the class level, the main microbial groups (Gammaproteobacteria, Coriobacteriia, Actinobacteria, Alphaproteobacteria) with electroactive members were found at C-anode and were associated with the high-power densities obtained. Gasoline is more difficult to biodegrade than kerosene. However, in both cases, SMFC biodegradation activity and power output are increased when ORR is performed on birnessite/CF in 0.8 M Na 2 SO 4 at pH 2. The work discussed here can focus on bioremediation (in heavy OCS) or energy production in future work.","PeriodicalId":15542,"journal":{"name":"Journal of electrochemical science and technology","volume":"1 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69567095","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

Studying Thermochemical Conversion of Sm2O3 to SmCl3 using AlCl3 in LiCl-KCl Eutectic Melt 用AlCl3在LiCl-KCl共晶熔体中研究Sm2O3向SmCl3的热化学转化

IF 3.7 4区工程技术

Journal of electrochemical science and technology Pub Date : 2022-04-18 DOI: 10.33961/jecst.2021.00934

Nibedita Samanta, M. Chandra, S. Maji, P. Venkatesh, S. Annapoorani, Ashish Jain

{"title":"Studying Thermochemical Conversion of Sm2O3 to SmCl3 using AlCl3 in LiCl-KCl Eutectic Melt","authors":"Nibedita Samanta, M. Chandra, S. Maji, P. Venkatesh, S. Annapoorani, Ashish Jain","doi":"10.33961/jecst.2021.00934","DOIUrl":"https://doi.org/10.33961/jecst.2021.00934","url":null,"abstract":"In this report the thermochemical conversion of Sm 2 O 3 to SmCl 3 using AlCl 3 in LiCl-KCl melt at 773 K is discussed. The final product was a mixture of SmCl 3 , Al 2 O 3 , unreacted Sm 2 O 3 and AlCl 3 in the chloride melt. The electrochemical attri-butes of the mixture was analyzed with cyclic voltammetry (CV) and square wave voltammetry (SWV). The crystallo-graphic phases of the mixture were studied with X-ray diffraction (XRD) technique. The major chemical conversion was optimized by varying the effective parameters, such as concentrations of AlCl 3 , duration of reaction and the amount of LiCl-KCl salt. The extent of conversion and qualitative assessment of efficiency of the present protocol were evaluated with fluorescence spectroscopy, UV-Vis spectrophotometry and inductively coupled plasma atomic emission spectroscopy (ICP-AES) studies of the mixture. Thus, a critical assessment of the thermochemical conversion efficiency was accomplished by analysing the amount of SmCl 3 in LiCl-KCl melt. In the process, a conversion efficiency of 95% was achieved by dou-bling the stoichiometric requirement of AlCl 3 in 50 g of LiCl-KCl salt. The conversion reaction was found to be very fast as the reaction reached equilibrium in 15 min.","PeriodicalId":15542,"journal":{"name":"Journal of electrochemical science and technology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2022-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43829684","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: 2

The Investigation of COD Treatment and Energy Consumption of Urban Wastewater by a Continuous Electrocoagulation System 连续电絮凝系统处理城市污水COD及能耗研究

IF 3.7 4区工程技术

Journal of electrochemical science and technology Pub Date : 2022-04-14 DOI: 10.33961/jecst.2021.00647

Yeşim DEDE SAĞSÖZ, A. Yılmaz, F. Ekmekyapar Torun, B. Kocadagistan, Sinan Kul

{"title":"The Investigation of COD Treatment and Energy Consumption of Urban Wastewater by a Continuous Electrocoagulation System","authors":"Yeşim DEDE SAĞSÖZ, A. Yılmaz, F. Ekmekyapar Torun, B. Kocadagistan, Sinan Kul","doi":"10.33961/jecst.2021.00647","DOIUrl":"https://doi.org/10.33961/jecst.2021.00647","url":null,"abstract":"In this study, electrochemical treatment of urban wastewater with electrical conductivity of 1000 µS cm -1 and chemical oxygen demand of 250 mg L -1 was investigated using the variables of initial pH value, current density and flow rate. Electrocoagulation was used, in which aluminum and stainless steel were selected, as the electrochemical treatment process. The electrocoagulation process was operated in continuous mode. The data obtained in experimental studies show that the best COD removal efficiency occurred in experiments where the initial pH value was 6. The increase in current density from 5 A to 15 A decreased the removal efficiency from 79 to 67%. The increase in flow rate under constant current density also reduced the efficiency of removal as expected. In experiments in which current density and flow rate were examined together, the increase in flow rate allowed the application of higher current densities. This situation led to considerable reductions in energy consumption values, even if the COD removal efficiency did not significantly increase. The high COD removal obtained with the use of high flow rate and high current density indicates that the electrocoagulation process can be used for high flow rate municipal wastewater treatment.","PeriodicalId":15542,"journal":{"name":"Journal of electrochemical science and technology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2022-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42103054","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: 1

Electrochemical Performance of LiMn2O4 Cathodes in Zn-Containing Aqueous Electrolytes LiMn2O4阴极在含锌水溶液中的电化学性能

IF 3.7 4区工程技术

Journal of electrochemical science and technology Pub Date : 2022-04-14 DOI: 10.33961/jecst.2021.00689

M. A. Kamenskii, S. Eliseeva, A. Volkov, V. Kondratiev

{"title":"Electrochemical Performance of LiMn2O4 Cathodes in Zn-Containing Aqueous Electrolytes","authors":"M. A. Kamenskii, S. Eliseeva, A. Volkov, V. Kondratiev","doi":"10.33961/jecst.2021.00689","DOIUrl":"https://doi.org/10.33961/jecst.2021.00689","url":null,"abstract":"Electrochemical properties of LiMn 2 O 4 cathode were investigated in three types of Zn-containing electrolytes: lithium-zinc sulfate electrolyte (1 M ZnSO 4 / 2 M Li 2 SO 4 ), zinc sulfate electrolyte (2 M ZnSO 4 ) and lithium-zinc-manganese sulfate electrolyte (1 M ZnSO 4 / 2 M Li 2 SO 4 / 0.1 M MnSO 4 ). Cyclic voltammetry measurements demonstrated that LiMn 2 O 4 is electrochemically inactive in pure ZnSO 4 electrolyte after initial oxidation. The effect of manganese (II) additive in the zinc-manganese sulfate electrolyte on the electrochemical performance was analyzed. The initial capacity of LiMn 2 O 4 is higher in presence of MnSO 4 (140 mAh g -1 in 1 M ZnSO 4 / 2 M Li 2 SO 4 / 0.1 M MnSO 4 and 120 mAh g -1 in 1 M ZnSO 4 / 2 M Li 2 SO 4 ). The capacity increase can be explained by the electrodeposition of MnO x layer on the electrode surface. Structural characterization of postmortem electrodes with use of XRD and EDX analysis confirmed that partially formed in pure ZnSO 4 electrolyte Zn-containing phase leads to fast capacity fading which is probably related to blocked electroactive sites.","PeriodicalId":15542,"journal":{"name":"Journal of electrochemical science and technology","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2022-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43204663","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