ChemElectroChem最新文献_第9页

Front Cover: Insights into the High Catalytic Activity of Li-Ion Battery Waste toward Oxygen Reduction to Hydrogen Peroxide (ChemElectroChem 15/2024) 封面：锂离子电池废料对氧气还原成过氧化氢的高催化活性的启示（ChemElectroChem 15/2024）

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-08-01 DOI: 10.1002/celc.202481501

Ph. D. Magdalena Warczak, Ph. D. Magdalena Osial, Ph. D. Weronika Urbańska, B. Eng. Natalia Sławkowska, Ph. D. Agnieszka Dąbrowska, Ph. D. Magdalena Bonarowska, Ph. D. Eng. Marcin Pisarek, Ph. D. Roman Minikayev, Prof. Michael Giersig, Prof. Marcin Opallo

引用次数: 0

Ultrathin (15 nm) Carbon Sheets with Surface Oxygen Functionalization for Efficient Pseudocapacitive Na-ion Storage 表面氧官能化的超薄（15 nm）碳片用于高效伪电容式钠离子存储

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-08-01 DOI: 10.1002/celc.202400255

Vinodkumar Etacheri, Rudi Ruben Maça, Venkata Sai Avvaru, Chulgi Nathan Hong, Abdullah Alazemi, Vilas G. Pol

{"title":"Ultrathin (15 nm) Carbon Sheets with Surface Oxygen Functionalization for Efficient Pseudocapacitive Na-ion Storage","authors":"Vinodkumar Etacheri, Rudi Ruben Maça, Venkata Sai Avvaru, Chulgi Nathan Hong, Abdullah Alazemi, Vilas G. Pol","doi":"10.1002/celc.202400255","DOIUrl":"10.1002/celc.202400255","url":null,"abstract":"Disordered carbon is the state of the art anode material for Na-ion batteries due to their increased interlayer spacing and good electronic conductivity. However, its practical application is hindered by average specific capacity, poor rate performance, low coulombic efficiency and limited cycling stability. Herein, we report the superior pseudocapacitance enhanced Na-ion storage of in situ surface functionalized carbon nanosheets. Anodes composed of ultrathin (~15 nm) carbon nanosheets demonstrated excellent reversible specific capacity (375 mAh/g at 25 mA/g), rate performance (150 mAh/g at 2 A/g), long-term cycling performance (1000 cycles at 1 A/g) and coulombic efficiency (~100 %). Considerably higher pseudocapacitance (up to ~78 %) is also identified in this case compared to amorphous carbon particles. Spectroscopic and electrochemical studies proved Na-ion intercalation in to the disordered carbon and pseudocapacitive storage driven by oxygen-containing surface functional groups. Outstanding electrochemical performance is credited to the synergy between diffusion limited intercalation and pseudocapacitive surface Na-ion storage. The demonstrated synthetic method of in situ functionalized carbon nanosheets is inexpensive and scalable. The strategy of functional group and morphology induced pseudocapacitive Na-ion storage offer new prospects to design high-performance Na-ion battery electrodes.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 17","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400255","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141886837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unraveling the Role and Impact of Alumina on the Nucleation and Reversibility of β-LiAl in Aluminum Anode Based Lithium-Ion Batteries 揭示氧化铝对铝负极锂离子电池中 β-LiAl 的成核和可逆性的作用和影响

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-07-31 DOI: 10.1002/celc.202400322

Lucas Wells, Thien An Pham, Gebrekidan Gebresilassie Eshetu, Stefan Seidlmayer, Giovanni Ceccio, Antonino Cannavo, Jiří Vacík, Adrian Mikitisin, Peter Müller-Buschbaum, Ralph Gilles, Egbert Figgemeier

{"title":"Unraveling the Role and Impact of Alumina on the Nucleation and Reversibility of β-LiAl in Aluminum Anode Based Lithium-Ion Batteries","authors":"Lucas Wells, Thien An Pham, Gebrekidan Gebresilassie Eshetu, Stefan Seidlmayer, Giovanni Ceccio, Antonino Cannavo, Jiří Vacík, Adrian Mikitisin, Peter Müller-Buschbaum, Ralph Gilles, Egbert Figgemeier","doi":"10.1002/celc.202400322","DOIUrl":"10.1002/celc.202400322","url":null,"abstract":"Aluminum, due to its high abundance, very attractive theoretical capacity, low cost, low (de−) lithiation potential, light weight, and effective suppression of dendrite growth, is considered as a promising anode candidate for lithium-ion batteries (LIBs). However, its practical application is hindered due to multiple detrimental challenges, including the formation of an amorphous surface oxide layer, pulverization, and insufficient lithium diffusion kinetics in the α-phase. These outstanding intrinsic challenges need to be addressed to facilitate the commercial production of Al-based batteries. The native passivation layer, Al2O3, plays a critical role in the nucleation and reversibility of lithiating aluminum and is thoroughly investigated in this study using high precision electrochemical micro calorimetry. The enthalpy of crystallization of β-LiAl is found to be 40.5 kJ mol−1, which is in a strong agreement with the value obtained by calculation using Nernst equation (40.04 kJ mol−1). Surface treatment of the active material by the addition of 25 nm of alumina increases the nucleation energy barrier by 83 % over the native oxide layer. After the initial nucleation, the added alumina does not negatively impact the reversibility at 0.1 C rate, suggesting the removal of alumina is not necessary for improving the cyclability of aluminum anode based lithium-ion batteries. Moreover, the coulombic efficiencies are also found to be slightly higher in the alumina treated samples compared to the untreated ones.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 17","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400322","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141881299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strain-Modulated Hydrogen Production Performance in Monolayer MoS2 Electrocatalysis Nanodevices 单层 MoS2 电催化纳米器件的应变调节制氢性能

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-07-30 DOI: 10.1002/celc.202400352

Baokang Niu, Ningyu Wang, Ruizhao Shen, Xiaobin Liao, Liqiang Mai

{"title":"Strain-Modulated Hydrogen Production Performance in Monolayer MoS2 Electrocatalysis Nanodevices","authors":"Baokang Niu, Ningyu Wang, Ruizhao Shen, Xiaobin Liao, Liqiang Mai","doi":"10.1002/celc.202400352","DOIUrl":"10.1002/celc.202400352","url":null,"abstract":"The integration of flexible micro- and nanodevices plays a pivotal role in investigating stress-enhanced performances and underlying intrinsic mechanisms for two-dimensional materials. This study presents the fabrication of single-crystal flexible devices using monolayer MoS2 and its catalytic activities for the hydrogen evolution reaction under stress conditions. A metallic conductive layer was deposited on the photoresist surface via magnetron sputtering, overcoming the challenges associated with lithography on insulating substrates using electron beam lithography (EBL). The results demonstrate optimal etch patterns with a metal modification layer thickness of 10.97 nm. Leveraging this flexible device fabrication process, a single-layer MoS2 single-nanosheet flexible micro/nano device was developed and subsequently strain-modulated (stretched along the zigzag lattice direction with the armchair lattice direction as the axis). A significant enhancement is observed in the electrocatalytic hydrogen evolution performance as the strain increases from 0 % to 0.40 %. Notably, the onset overpotential decreased from 155.6 to 95.7 mV, and the Tafel slope decreased from 175.3 to 98.6 mV dec−1. This study provides new insights into the design and performance of strain devices for two-dimensional (2D) monocrystalline/polycrystalline materials.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 16","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400352","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141871917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kinetic Insights into Na Ion Transfer at the Carbon-Based Negative Electrode/Electrolyte Interfaces for Sodium-Ion Batteries 钠离子电池碳基负电极/电解质界面 Na 离子转移的动力学启示

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-07-29 DOI: 10.1002/celc.202400275

Prof. Dr. Shota Tsujimoto, Prof. Dr. Changhee Lee, Ryoich Nunokawa, Yeji Kim, Prof. Dr. Yuto Miyahara, Prof. Dr. Kohei Miyazaki, Prof. Dr. Takeshi Abe

引用次数: 0

An Ultrasensitive Electrochemical Immunosensor for in Situ Detection of GABA in Plant Leaves 用于原位检测植物叶片中 GABA 的超灵敏电化学免疫传感器

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-07-29 DOI: 10.1002/celc.202400380

Haotong Wu, Yueyue Wang, Qian Wei, Bin Luo, Cheng Wang, Peichen Hou, Aixue Li

{"title":"An Ultrasensitive Electrochemical Immunosensor for in Situ Detection of GABA in Plant Leaves","authors":"Haotong Wu, Yueyue Wang, Qian Wei, Bin Luo, Cheng Wang, Peichen Hou, Aixue Li","doi":"10.1002/celc.202400380","DOIUrl":"10.1002/celc.202400380","url":null,"abstract":"Gamma-aminobutyric acid (GABA) is involved in the signal transduction and metabolism of various substances in plants. Its in vivo detection in plants is of great importance for understanding its physiological role. In this study, an ultrasensitive electrochemical immunosensor is developed for in vivo detecting GABA in plants based on screen printed electrode (SPE) electrode. Gold nanoparticles (Au NP) was electrodeposited on the SPE to improve the conductivity of the electrode. Nanocomposite of ferrocene-Carboxylated graphene oxide-carboxylated multi-walled carbon nanotubes (Fc-GO-MWCNT) was fabricated on the electrode to improve the electrochemical properties of the sensor, and Fc was used to generate electrochemical signals. Then polydopamine (PDA) was electropolymerized on the electrode to improve the electrochemical activity of the sensor and increase the loading amount of GABA antibody. The as-prepared immunosensor shows the widest detection range of 10 fM to 10 mM, and lowest detection limit of 1.9 fM (S/N=3) for GABA. This immunosensor was applied for in vivo detecting GABA in the cucumber leaves under salt stress. Our sensor is the first electrochemical immunosensor for in vivo detecting GABA in plant. It proposes a new strategy for the development of immunosensor for in vivo detection of biomolecules in plants.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 16","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400380","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141871918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Structural Properties and Photoelectrocatalytic Response of Mn-Doped Hematite Photoanodes Prepared via a Modified Electrodeposition Approach 通过改良电沉积方法制备的掺锰赤铁矿光阳极的结构特性和光电催化响应

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-07-29 DOI: 10.1002/celc.202400348

Dr. Pannan I. Kyesmen, Dr. Joseph Simfukwe, Dr. Peverga R. Jubu, Dr. Adedapo O. Adeola, Prof. Mmantsae Diale

{"title":"The Structural Properties and Photoelectrocatalytic Response of Mn-Doped Hematite Photoanodes Prepared via a Modified Electrodeposition Approach","authors":"Dr. Pannan I. Kyesmen, Dr. Joseph Simfukwe, Dr. Peverga R. Jubu, Dr. Adedapo O. Adeola, Prof. Mmantsae Diale","doi":"10.1002/celc.202400348","DOIUrl":"10.1002/celc.202400348","url":null,"abstract":"The concept of nanostructuring and doping of hematite (α-Fe2O3) photoanodes have been widely engaged towards improving their photoelectrocatalytic (PEC) response. Here, a FeCl3-based solution was modified with 0–10 % polyethylene glycol (PEG) 400 and used as an electrolyte for the electrodeposition of nanostructured α-Fe2O3 thin films. The electrolyte containing 10 % PEG was further used to prepare Mn-doped α-Fe2O3 films by adding 1, 3, 6, and 10 % of MnCl2.4H2O with respect to the molarity of FeCl3. The addition of 10 % PEG into the electrolyte limited particle agglomeration and yielded the best PEC response among the pristine films. The 3 % Mn-doped α-Fe2O3 photoanodes produced the highest photocurrent, yielding 2.2 and 6.1-fold photocurrent enhancement at 1.23 V and 1.5 V vs. RHE respectively, over the pristine films. The improved PEC response is linked to the reduced particle agglomeration and improved charge transport properties observed for the films. Density functional theory (DFT) calculations of the formation energies yielded negative values for the Mn-doped α-Fe2O3, which implies that the materials are thermodynamically stable after doping. This work introduces a new pathway for the electrodeposition of doped α-Fe2O3 films and underscores the roles of Mn-doping in boosting their PEC response.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 16","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400348","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141871919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review on Artificial Interphases for Lithium Metal Anodes: From a Mechanical Perspective 关于锂金属阳极人工相间的综述：从机械角度看

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-07-29 DOI: 10.1002/celc.202400278

Dr. Yueying Peng, Dr. Ryota Tamate, Dr. Kei Nishikawa

引用次数: 0

Charge Redistribution in Nise2/Mos2 n–n Heterojunction towards the Photoelectrocatalytic Degradation of Ciprofloxacin 实现环丙沙星光电催化降解的 Nise2/Mos2 n-n 异质结中的电荷再分布

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-07-25 DOI: 10.1002/celc.202400309

Dr. Tunde L. Yusuf, Olalekan C. Olatunde, Daniel Masekela, Kwena D. Modibane, Damian C. Onwudiwe, Seshibe Makgato

{"title":"Charge Redistribution in Nise2/Mos2 n–n Heterojunction towards the Photoelectrocatalytic Degradation of Ciprofloxacin","authors":"Dr. Tunde L. Yusuf, Olalekan C. Olatunde, Daniel Masekela, Kwena D. Modibane, Damian C. Onwudiwe, Seshibe Makgato","doi":"10.1002/celc.202400309","DOIUrl":"10.1002/celc.202400309","url":null,"abstract":"This study reports the photoelectrocatalytic (PEC) activity of a n–n heterojunction comprising MoS2 and NiSe2. The synthesis of the composite was achieved through a facile solvothermal method, yielding an exfoliated MoS2 layered sheet loaded with NiSe2 nanoparticles. Under visible light radiation and an external electric field, the obtained composite NiSe2/MoS2 exhibited enhanced catalytic activity for ciprofloxacin (CIP) degradation. The NiSe2/MoS2 heterojunction achieved about 78 % degradation efficiency with a first-order kinetic rate of 0.0111 min−1, compared to 38 % efficiency and a first-order kinetic rate of 0.0044 min−1 observed for MoS2. The NiSe2/MoS2 heterojunction was more advantageous due to the synergy of charge carrier induction by visible light radiation and improved charge carrier separation induced by the external electric field. The formation of n–n heterojunction at the interface of the two materials resulted in charge redistribution in the materials, with a simultaneous realignment of the band structure to achieve Fermi energy equilibration. The primary reactive species responsible for CIP degradation was identified as the photo-induced h+. Furthermore, the catalyst exhibited high stability and reusability, with no significant reduction in activity observed after five experimental cycles. This study reveals the potential of exploring the synergy between the photocatalytic and electrocatalytic processes in removing harmful pharmaceutical compounds from water.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 16","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400309","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141781802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Practical Pouch Cell Supercapacitor Electrodes by Electrophoretic Deposition of Activated Carbon on Nickel Foam 通过在镍泡沫上电泳沉积活性炭实现实用的袋式电池超级电容器电极

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-07-24 DOI: 10.1002/celc.202400244

Barun Kumar Chakrabarti, Koray Bahadır Dönmez, Zehra Çobandede, Chee Tong John Low

{"title":"Practical Pouch Cell Supercapacitor Electrodes by Electrophoretic Deposition of Activated Carbon on Nickel Foam","authors":"Barun Kumar Chakrabarti, Koray Bahadır Dönmez, Zehra Çobandede, Chee Tong John Low","doi":"10.1002/celc.202400244","DOIUrl":"10.1002/celc.202400244","url":null,"abstract":"This study highlights for the first-time the utilization of nickel foam coated with activated carbon (AC) via the electrophoretic deposition (EPD) method in the fabrication of A7 sized pouch cell supercapacitors. The scale-up of electrodes via EPD from coin to pouch cells with mass loadings (10 mg cm−2) and thicknesses (>130 μm) that match industrial standards is also reported. Research investigations include: (a) comparison of a two dimensional (2D) aluminum foil current collector's performance with three dimensional (3D) microporous nickel foam current collectors, (b) impact of EPD of AC onto small (10 cm2) and large areas (50 cm2) of nickel foam, and (c) scaling-up of coin to pouch cells along with a comparison against electrodes prepared via the standard doctor blade coating (or slurry casting) method. We demonstrate practical cell performance, including specific current loading (40 A g−1), hundred thousand of successive charge and discharge operation (150,000 cycles), power (27 kW kg−1) and energy densities (37.7 W h kg−1), capacitance (174 F g−1), capacitance retention (80 %) and coulombic efficiency (close to 100 %).","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"11 16","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400244","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141781801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0