International Journal of Electrochemical Science最新文献

Recycling of photovoltaic silicon and graphite waste to prepare three-dimensional silicon/artificial graphite/carbon anodes for lithium-ion battery 回收光伏硅和石墨废料制备锂离子电池用三维硅/人造石墨/碳阳极

IF 1.3 4区化学

International Journal of Electrochemical Science Pub Date : 2025-05-16 DOI: 10.1016/j.ijoes.2025.101062

Siyuan Du , Lu Ding , Shuangyu Liu , Feng Qian , Honglie Shen , Hui Cui , Chuandong Zhou , Honggang Zhang , Baoju Yang , Dongwen Shan , Juan Hong

{"title":"Recycling of photovoltaic silicon and graphite waste to prepare three-dimensional silicon/artificial graphite/carbon anodes for lithium-ion battery","authors":"Siyuan Du , Lu Ding , Shuangyu Liu , Feng Qian , Honglie Shen , Hui Cui , Chuandong Zhou , Honggang Zhang , Baoju Yang , Dongwen Shan , Juan Hong","doi":"10.1016/j.ijoes.2025.101062","DOIUrl":"10.1016/j.ijoes.2025.101062","url":null,"abstract":"<div><div>The production of silicon (Si) wafers generates substantial amounts of micron-sized, high-purity Si waste, resulting in environmental pollution and resource loss. Similarly, the manufacturing of artificial graphite (AG) components results in the generation of significant amounts of unused AG waste. This research focuses on the development of a carbon (C) coated Si/AG composite material with long cycle stability by recycling Si and AG waste. Initially, purified Si waste is combined with anhydrous ethanol and processed in a sand mill to create a Si-containing nanoslurry. Next, carbon nanotubes, polyvinylpyrrolidone, and AG waste are incorporated into the SM-nano Si, mixed, and then spray-dried. The final step involves high-temperature annealing in a hydrogen-argon atmosphere to develop a three-dimensional interpenetrating Si/AG/C structure. When used as the anode material in lithium-ion batteries, the coin cell maintains a capacity of 639 mAh g⁻¹ after 500 cycles at a current density of 500 mA g⁻¹ , achieving a capacity retention rate of 88 %. Following additional electrostatic modification, the capacity rises to 691.7 mAh g⁻¹ . This study highlights the potential of recycling Si and AG waste to produce high-performance Si/C anode materials, significantly contributing to the sustainable reuse of discarded resources.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101062"},"PeriodicalIF":1.3,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of pH on corrosion mechanism of two austenitic stainless steels in artificial sweat pH对两种奥氏体不锈钢在人工汗液中腐蚀机理的影响

IF 1.3 4区化学

International Journal of Electrochemical Science Pub Date : 2025-05-15 DOI: 10.1016/j.ijoes.2025.101065

Tingting Liu, Binbin Wang

{"title":"Effect of pH on corrosion mechanism of two austenitic stainless steels in artificial sweat","authors":"Tingting Liu, Binbin Wang","doi":"10.1016/j.ijoes.2025.101065","DOIUrl":"10.1016/j.ijoes.2025.101065","url":null,"abstract":"<div><div>The sweat is highly corrosive, and its pH fluctuates in the range of 4–7.5 with different physiological conditions. In order to study the effect of sweat pH change on the corrosion behavior of two austenitic stainless steels (304 and 316 L), the failure mechanism was studied by electrochemical experiments and immersion corrosion. Metallographic study results show that the grain size of the two austenitic stainless steels is similar (∼ 16 μm), but the inclusion content (carbides and sulfides) in 304 stainless steel is higher than that in 316 L stainless steel. The results showed that the corrosion current (<em>I</em><sub><em>corr</em></sub>) of 304 and 316 L increased significantly with the decrease of sweat pH from 7.5 to 4.5, and <em>I</em><sub><em>corr</em></sub> increased by 10.2 times and 8.9 times, respectively. The results of electrochemical impedance spectroscopy show that the decrease of pH will lead to the decrease of the thickness of the passivation film on the surface of the sample, and the roughness of the passivation film increases and the uniformity decreases. Further, the results of 30-day immersion test showed that the corrosion mechanism of the samples in sweat was mainly pitting corrosion. With the decrease of pH, the loss of Cr, Ni, and Mo on the surface of the samples increased, indicating that low pH could promote the migration and loss of Cr, Ni and Mo, resulting in an increase in the degree of corrosion of the samples. The above research results can provide guidance for the design of anti-sweat corrosion materials.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101065"},"PeriodicalIF":1.3,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facile synthesis of spinel LiMn2O4 cathode material from nanoscale Mn3O4 for lithium-ion batteries 纳米Mn3O4快速合成锂离子电池用尖晶石LiMn2O4正极材料

IF 1.3 4区化学

International Journal of Electrochemical Science Pub Date : 2025-05-14 DOI: 10.1016/j.ijoes.2025.101071

Bizhi Cao, Wei Chen, Haisheng Fang

{"title":"Facile synthesis of spinel LiMn2O4 cathode material from nanoscale Mn3O4 for lithium-ion batteries","authors":"Bizhi Cao, Wei Chen, Haisheng Fang","doi":"10.1016/j.ijoes.2025.101071","DOIUrl":"10.1016/j.ijoes.2025.101071","url":null,"abstract":"<div><div>Mn<sub>3</sub>O<sub>4</sub> nanoparticles synthesized form the room-temperature solid-state reactions between hydrated manganese salts and alkalis were explored as the starting material for preparing spinel LiMn<sub>2</sub>O<sub>4</sub>. Sintering temperature and lithium excess were tuned to obtain LiMn<sub>2</sub>O<sub>4</sub> with optimal electrochemical performance and their effects were investigated. The results show that pure and highly crystalline LiMn<sub>2</sub>O<sub>4</sub> was obtained, and the electrochemical performance is strongly affected by Mn valence, point defect and order of crystal structure as well as the particle size, which are highly dependent on sintering temperature and lithium excess. The LiMn<sub>2</sub>O<sub>4</sub> with well crystalline order and competitive electrochemical performance can be readily synthesized at a moderate sintering temperature of 750 °C without excess lithium, which delivered an initial discharge capacity of 129.3 mAh/g at 0.2 C with the initial coulombic efficiency of 93.43 % and kept a capacity retention of 90.9 % after 100 cycles. Thus, nanoscale Mn<sub>3</sub>O<sub>4</sub> is proved to be a promising starting material for the preparation of high quality LiMn<sub>2</sub>O<sub>4</sub>.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101071"},"PeriodicalIF":1.3,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrosion performance of SiC ceramic/epoxy composite coatings on carbonsteel in simulated deep-sea and atmospheric conditions 碳化硅陶瓷/环氧复合涂层在模拟深海和大气条件下对碳钢的腐蚀性能

IF 1.3 4区化学

International Journal of Electrochemical Science Pub Date : 2025-05-13 DOI: 10.1016/j.ijoes.2025.101067

Xiaoping Guo , Yungen He , Chao Yao , Shuan Liu

引用次数: 0

Front Matter1:Full Title Page 封面1：完整的标题页

IF 1.3 4区化学

International Journal of Electrochemical Science Pub Date : 2025-05-13 DOI: 10.1016/S1452-3981(25)00132-4

引用次数: 0

Electrocatalytic conversion of aromatic esters to ortho-aromatic ester amides using hydrophobic Cu-PTFE electrodes 疏水Cu-PTFE电极电催化芳香族酯转化为邻芳香族酯酰胺

IF 1.3 4区化学

International Journal of Electrochemical Science Pub Date : 2025-05-13 DOI: 10.1016/j.ijoes.2025.101069

Min Liu , Wenjun Chen , Zhizhong Su , Ziyang Huang

{"title":"Electrocatalytic conversion of aromatic esters to ortho-aromatic ester amides using hydrophobic Cu-PTFE electrodes","authors":"Min Liu , Wenjun Chen , Zhizhong Su , Ziyang Huang","doi":"10.1016/j.ijoes.2025.101069","DOIUrl":"10.1016/j.ijoes.2025.101069","url":null,"abstract":"<div><div>The hydrophobic Cu-PTFE electrodes were prepared using a composite plating method, with Cu as the substrate and PTFE nanoparticles suspended in the plating solution. The electrode properties, including phase composition, functional group changes, surface morphology, wettability, redox behavior, and electrochemical corrosion resistance, were characterized by different analytical ways, including XRD, FT-IR spectroscopy, scanning electron microscopy, contact angle measurements, and electrochemical tests. The results showed that based on the hydrophobicity of the Cu-PTFE electrode, the electrocatalytic reduction of 2-acetamidoaromatic esters with aromatic esters as substrates was carried out in up to 70 % yield using CH<sub>3</sub>CN as solvent and reactant. In electrocatalytic reduction, CH<sub>3</sub>CN can coordinate with oxygen, thereby stabilizing the ionic state of the reactants and lowering the reaction energy barrier. The high polarity solvent environment of CH<sub>3</sub>CN can stabilize charged intermediates and promote nucleophilic attacks, and similar to Beckmann rearrangement reaction was realized to the coupling of adjacent C-N bonds and reduces the occurrence of side reactions. In addition, the use of hydrophobic electrodes as catalysts not only improves reaction efficiency but also conforms to the principles of green chemistry in its electron transfer process.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101069"},"PeriodicalIF":1.3,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Investigation of the performance of carbon fiber-reinforced CoNi coatings electrodeposited on brass substrates

IF 1.3 4区化学

International Journal of Electrochemical Science Pub Date : 2025-05-08 DOI: 10.1016/j.ijoes.2025.101053

Juan Xue, Linjia Zhang

{"title":"Investigation of the performance of carbon fiber-reinforced CoNi coatings electrodeposited on brass substrates","authors":"Juan Xue, Linjia Zhang","doi":"10.1016/j.ijoes.2025.101053","DOIUrl":"10.1016/j.ijoes.2025.101053","url":null,"abstract":"<div><div>Carbon fiber is added to the CoNi plating solution to prepare the carbon fiber-reinforced CoNi coating. The influence of carbon fiber on the surface morphology, chemical composition, corrosion resistance, wear resistance and magnetic performance of the CoNi electrodeposited coating is investigated. Carbon fibers have good electrical conductivity and act as additional nucleation sites during electrodeposition, leading to an enhanced of CoNi deposition rate. The carbon fiber-reinforced CoNi coating shows smaller and finer nodular structures and is composed of 61.4 % cobalt, 25.5 % nickel and 13.1 % carbon. The addition of carbon fiber to the plating solution increases the cobalt content while decreasing the amount of nickel in the CoNi coating. Compared with the CoNi coating, the carbon fiber-reinforced CoNi coating exhibits better corrosion resistance with the most positive corrosion potential (-0.511 V) and the lowest corrosion current density (9.07 μA/cm<sup>2</sup>). The presence of carbon fiber hinders grain growth, leading to a finer, more compact grain structure, which results in higher wear resistance. Moreover, according to the magnetic hysteresis loop of the CoNi coating, the saturation magnetization of CoNi is about 83.2 emu/g while the saturation magnetization of carbon fiber-reinforced CoNi coating is approximtely 92.5 emu/g. The coercivity of the carbon fiber-reinforced CoNi coating is 468.9 Oe, which is twice as large as that of the CoNi coating.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101053"},"PeriodicalIF":1.3,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of hot rolling and heat treatment on the microstructure, mechanical and corrosion properties of Al-xCu-0.5Mg-0.7Si alloy 热轧和热处理对Al-xCu-0.5Mg-0.7Si合金组织、力学性能和腐蚀性能的影响

IF 1.3 4区化学

International Journal of Electrochemical Science Pub Date : 2025-05-04 DOI: 10.1016/j.ijoes.2025.101054

Kunning Niu , Ruikai Bao , Yu Su , Yiheng Wang , XiaoCheng Liu , Yilong Dai

{"title":"Effects of hot rolling and heat treatment on the microstructure, mechanical and corrosion properties of Al-xCu-0.5Mg-0.7Si alloy","authors":"Kunning Niu , Ruikai Bao , Yu Su , Yiheng Wang , XiaoCheng Liu , Yilong Dai","doi":"10.1016/j.ijoes.2025.101054","DOIUrl":"10.1016/j.ijoes.2025.101054","url":null,"abstract":"<div><div>This study systematically investigates the synergistic effects of microalloying, hot rolling processing, and heat treatment on the microstructural evolution, mechanical properties, and corrosion behavior of Al-<em>x</em>Cu-0.5Mg-0.7Si (<em>x</em> = 0.5, 1.5, 2.5 wt%) alloys. The results demonstrate that copper content significantly affects the precipitation behavior and phase distribution of the alloys. Increasing the copper content from 0.5 to 2.5 wt% results in a marked increase in the volume fraction of the second phase, which enhances mechanical strength but compromises corrosion resistance. Hot rolling not only refines the grain structure but also promotes directional alignment of the second phases, leading to a 22.9 % improvement in tensile strength. Subsequent T6 heat treatment induces the formation of fine, uniformly distributed Al<sub>2</sub>Cu strengthening phases, further enhancing the mechanical properties of the alloy. Notably, the optimized Al-2.5Cu-0.5Mg-0.7Si alloy, after combined hot rolling and T6 treatment, exhibits exceptional mechanical performance with a yield strength of 293.3 MPa, ultimate tensile strength of 366 MPa, Vickers hardness of 522.3 HV, and elongation of 24.4 %. Additionally, its electrochemical corrosion rate is as low as 0.043 mm/y.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101054"},"PeriodicalIF":1.3,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Factors affecting pore length during anodizing of aluminum in phosphoric acid electrolytes 影响磷酸电解液中铝阳极氧化孔长的因素

IF 1.3 4区化学

International Journal of Electrochemical Science Pub Date : 2025-05-02 DOI: 10.1016/j.ijoes.2025.101048

Poqian Zhai , Pengze Li , Bowen Li , Lin Liu , Chengyuan Li , Liyang Qin , Juanjuan Ma , Xufei Zhu

{"title":"Factors affecting pore length during anodizing of aluminum in phosphoric acid electrolytes","authors":"Poqian Zhai , Pengze Li , Bowen Li , Lin Liu , Chengyuan Li , Liyang Qin , Juanjuan Ma , Xufei Zhu","doi":"10.1016/j.ijoes.2025.101048","DOIUrl":"10.1016/j.ijoes.2025.101048","url":null,"abstract":"<div><div>This paper focuses on the factors influencing the growth of the main pore of porous anodic aluminum (PAA) and verifies whether the field-assisted dissolution rate is equal to the oxide growth rate. Constant-current anodization and constant-voltage anodization of aluminum were carried out in three different electrolytes (with different concentrations of polyethylene glycol). The lengths of the main pores of PAA in the three electrolytes were compared. It was found that the growth rate of the PAA main pore (∼93 nm/min) was much larger than the chemical dissolution rate of the electrolyte (less than ∼15.6 nm/min), which first proved that the length of the PAA main pore was independent of the field-assisted dissolution. Meanwhile, it was found that the PAA main pore was almost linearly correlated with the magnitude of the anodizing current and electric charge. Finally, the three stages of the current-time curves were clarified in the light of the theories of the electronic current, the oxygen bubble mold and viscous flow model.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 7","pages":"Article 101048"},"PeriodicalIF":1.3,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent advancements in the catalytic electro-fenton process for sustainable and effective degradation of hazardous organic compounds in wastewater 催化电fenton法可持续有效降解废水中有害有机化合物的研究进展

IF 1.3 4区化学

International Journal of Electrochemical Science Pub Date : 2025-05-02 DOI: 10.1016/j.ijoes.2025.101049

Ikenna Chibuzor Emeji , Bilal Patel

{"title":"Recent advancements in the catalytic electro-fenton process for sustainable and effective degradation of hazardous organic compounds in wastewater","authors":"Ikenna Chibuzor Emeji , Bilal Patel","doi":"10.1016/j.ijoes.2025.101049","DOIUrl":"10.1016/j.ijoes.2025.101049","url":null,"abstract":"<div><div>Recalcitrant organic pollutants (ROPs), including persistent perfluorinated chemicals (PFCs) and polycyclic aromatic hydrocarbons (PAHs) from industrial activity, are widespread in wastewater and pose a significant environmental threat. Conventional treatment methods, such as activated sludge digestion, often struggle to degrade these stubborn contaminants due to their complex chemical structures and resistance to biological breakdown. This review examines advancements in electro-Fenton processes (EFP), a promising technology that utilizes iron-based catalysts (e.g., Fe²⁺/Fe³⁺ ions) and external electricity to enhance ROP degradation. Additionally, other Fenton-based processes—including the photo-Fenton process (pFP), sono-Fenton process (sFP), and photo-electro-Fenton process (peFP)—have demonstrated higher mineralization rates, as well as reduced operational costs and toxicity in treated wastewater. The total operating cost (expressed as cost per kilogram of COD removed) was assessed, including energy requirements (kWh per kilogram of COD removed), as well as the regeneration and reusability of the Fenton catalyst. Furthermore, novel kinetics based on the widely recognized EFP reaction mechanism were explored, providing clarity on the effects of critical operational parameters—such as pH, current density, dissolved oxygen concentration, and initial ferrous ion concentration—on hydroxyl radical (•OH) generation, pollutant interactions, and overall degradation efficiency. By critically analyzing existing research and highlighting promising optimization strategies, this work aims to reinforce EFP's position as a robust and sustainable solution for wastewater decontamination, paving the way for cleaner and healthier water bodies.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 8","pages":"Article 101049"},"PeriodicalIF":1.3,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0