ChemElectroChem最新文献_第10页

Direct Synthesis of Pd2+-Rich Palladene Aerogels as Bifunctional Electrocatalysts for Formic Acid Oxidation Reaction and Oxygen Reduction Reaction 直接合成富含 Pd2+ 的帕拉丁气凝胶作为甲酸氧化反应和氧还原反应的双功能电催化剂

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-08-05 DOI: 10.1002/celc.202400060

Cui Wang, Dr. Wei Wei, Dr. Maximilian Georgi, Dr. René Hübner, Christine Steinbach, Yannik Bräuniger, Dr. Simona Schwarz, Prof. Stefan Kaskel, Prof. Alexander Eychmüller

引用次数: 0

Investigation Towards the Asymmetric CBS-Catalysed Reduction of Aryl Methyl Ketones with Electrochemically in Situ Generated BH3 利用电化学原位生成的 BH3 进行 CBS 催化的芳基甲基酮不对称还原研究

IF 3.5 4区化学

ChemElectroChem Pub Date : 2024-08-01 DOI: 10.1002/celc.202400319

Marvin L. Abraham, Prof. Dr. Gerhard Hilt

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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}

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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