ChemElectroChem最新文献_第6页

Borophene and Its Composite-Based Electrochemical Sensors 硼罗芬及其复合电化学传感器

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-28 DOI: 10.1002/celc.202400670

Aashutosh Dube, Shweta J. Malode, Maha Alruwaili, Abdullah N. Alodhayb, Thandavarayan Maiyalagan, Nagaraj P. Shetti

{"title":"Borophene and Its Composite-Based Electrochemical Sensors","authors":"Aashutosh Dube, Shweta J. Malode, Maha Alruwaili, Abdullah N. Alodhayb, Thandavarayan Maiyalagan, Nagaraj P. Shetti","doi":"10.1002/celc.202400670","DOIUrl":"https://doi.org/10.1002/celc.202400670","url":null,"abstract":"Borophene is found as a monolayer of boron. It emerges as a promising 2D nanomaterial with unique characteristics like anisotropic metallic nature and direction-dependent mechanical and optical properties. High electrical conductivity, surface corrugation, high chemical reactivity, and substantially high electron mobility are the unique properties of borophene that are relevant to electrochemical sensor applications. This study encapsulates advancements in borophene-based electrochemical sensors and biosensors for sensing analytes, including glucose, urea, dopamine, and arsenic toxicity in water. A succinct summary has been presented, including all significant sensor attributes, the determined limit of detection, established linear dynamic range, utilized analytical approach, and documented sensor stability. The stability concerns have been mitigated by surface passivation and encapsulation, whereas real-time applications can be advanced by collaborating with industries, developing devices, and conducting pilot tests. The article delineates the process's constraints and problems while proposing alternative techniques and remedies.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 10","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400670","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144131613","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

Understanding and Comparing the Stability of Water- versus NMP-Based Tin(IV)Sulfide Electrodes Using Post-Mortem Analysis 利用事后分析了解和比较水基与nmp基锡（IV）硫化电极的稳定性

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-28 DOI: 10.1002/celc.202400702

Jana Kupka, Yuri Surace, Damian M. Cupid, Hans Flandorfer

{"title":"Understanding and Comparing the Stability of Water- versus NMP-Based Tin(IV)Sulfide Electrodes Using Post-Mortem Analysis","authors":"Jana Kupka, Yuri Surace, Damian M. Cupid, Hans Flandorfer","doi":"10.1002/celc.202400702","DOIUrl":"https://doi.org/10.1002/celc.202400702","url":null,"abstract":"Tin (IV) sulfide (SnS2) is a promising anode material for Li-ion batteries (LIBs) due to its high practical reversible capacity of 623 mAhg−1. However, its cycling stability is relatively poor and its long-term degradation during cycling is not yet thoroughly investigated. In this work, a post-mortem analysis of SnS2 electrodes was performed at pristine state, after the 1st cycle and at 80 % state-of-health. The analysis compared water-based (Na-CMC/SBR) and NMP-based (PVDF) electrodes revealing insights into their degradation mechanisms and electrochemical performance. During the first cycle, SnS2 converts into Sn and Li2S identified by XRD, causing particle cracking and exfoliation. XPS and Raman spectroscopy identified Sn, SnFx, LiF, Li2S and carbonates species forming the solid electrolyte interphase (SEI), while in-situ dilatometry revealed up to 60 % irreversible expansion after the first cycle. These species are also found after at 80 % SOH along with an increase in fluorine species, SEI thickness and interfacial resistance. Water-based electrodes exhibited better cycling stability, with 80 wt.% SnS2 and 10 wt.% binder retaining 80 % capacity after 180+ cycles. These findings underscore the critical role of binder choice and processing in enhancing SnS2 anodes’ durability and capacity retention, paving the way for sustainable, high-performance LIB anodes.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 10","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400702","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144131563","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

Theoretical Insights into the Activation and Conversion of Electrochemical CO2 Reduction on 3d Transition Metal-Doped Cu(111) Stepped Structures 三维过渡金属掺杂Cu（111）阶梯结构中电化学CO2还原的活化和转化的理论见解

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-28 DOI: 10.1002/celc.202500095

Lihong Yin, Jinxian Feng, Weng Fai Ip, Guangfu Luo, Hui Pan

{"title":"Theoretical Insights into the Activation and Conversion of Electrochemical CO2 Reduction on 3d Transition Metal-Doped Cu(111) Stepped Structures","authors":"Lihong Yin, Jinxian Feng, Weng Fai Ip, Guangfu Luo, Hui Pan","doi":"10.1002/celc.202500095","DOIUrl":"https://doi.org/10.1002/celc.202500095","url":null,"abstract":"The activation of CO2 is essential for efficient electrochemical conversion, yet its weak physisorption on pristine Cu surfaces severely hinders catalytic performance. To overcome this limitation, we designed Cu stepped structures to create highly reactive sites for enhanced CO2 adsorption and further doped the edges with 3d transition metals (V, Cr, Mn, Fe, Co, and Ni) to improve CO2 reduction. Density functional theory calculations reveal that these dopants significantly reduce the OCO angles and elongate the CO bonds, transforming CO2 from its original linear configuration into a bent geometry at the interface. Notably, dual-V and dual-Fe doping on Cu stepped surfaces demonstrates a strong interaction with CO2, leading to a high degree of activation. The computational results demonstrate that these modifications significantly enhance CO2 activation and favor methane generation. This study provides valuable insights into the design of advanced Cu-based electrocatalysts for efficient and selective CO2 activation, offering a pathway toward sustainable CO2 utilization.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 14","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598731","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

Novel Catalyst Layer Design with In Situ Constructed Cross-Linked Porous Network Toward High-Performance Proton Exchange Membrane Water Electrolysis 基于原位构建交联多孔网络的新型催化剂层设计用于高性能质子交换膜水电解

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-26 DOI: 10.1002/celc.202500072

Ziang Wang, Zhaoping Shi, Yuqing Cheng, Ming Yang, Jinsheng Li, Zhao Jin, Meiling Xiao, Changpeng Liu, Wei Xing

{"title":"Novel Catalyst Layer Design with In Situ Constructed Cross-Linked Porous Network Toward High-Performance Proton Exchange Membrane Water Electrolysis","authors":"Ziang Wang, Zhaoping Shi, Yuqing Cheng, Ming Yang, Jinsheng Li, Zhao Jin, Meiling Xiao, Changpeng Liu, Wei Xing","doi":"10.1002/celc.202500072","DOIUrl":"https://doi.org/10.1002/celc.202500072","url":null,"abstract":"Engineering catalyst layer structure is of significant importance to improve the performance and durability of proton exchange membrane water electrolysis (PEMWE), yet rare efficient design strategies has been reported. This work develops an in situ pore-making approach to construct cross-linked porous catalyst layer, which significantly improves catalyst active site utilization compared to conventional catalyst layer (CCL). The electrochemical activity area of the porous catalyst layer membrane electrode assemblies (MEA) (52.22 cm2 mgIr−1) is 2.10 times higher than that of the CCL-MEA (24.90 cm2 mgIr−1), which indicates that more active sites are exposed during pore-making process, leading to the higher utilization efficiency of the electrocatalyst. As a result, the porous catalyst layer exhibits a high current density of 3.8 A cm−2 at 1.9 V, which is exceeding the U.S. Department of Energy 2025 target (3 A cm−2@1.9 V), and shows superior durability with no significant degradation after 1600 h of operation at a constant load of 2 A cm−2. Scanning electron microscope analysis confirms the structural integrity of the porous catalyst layer, while cracks formed in the CCL during testing. These results highlight the benefits of the porous structure in improving mass transport, stability, and overall performance in PEMWE applications.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 13","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500072","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144551292","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

Photoelectrochemical Behavior of Heterostructure Based on Doping Effect: BiVO4/BiV1−xTixO4 System 基于掺杂效应的异质结构BiVO4/BiV1−xTixO4体系的光电化学行为

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-25 DOI: 10.1002/celc.202400679

Anna A. Murashkina, Tair V. Bakiev, Aida V. Rudakova, Alexei V. Emeline, Detlef W. Bahnemann

{"title":"Photoelectrochemical Behavior of Heterostructure Based on Doping Effect: BiVO4/BiV1−xTixO4 System","authors":"Anna A. Murashkina, Tair V. Bakiev, Aida V. Rudakova, Alexei V. Emeline, Detlef W. Bahnemann","doi":"10.1002/celc.202400679","DOIUrl":"https://doi.org/10.1002/celc.202400679","url":null,"abstract":"In this study, a set of Ti-doped BiVO4 photoelectrodes with Ti content varying in the range from 0 to 10 at% is synthesized. All synthesized samples are characterized by XRD, Raman spectroscopy, XPS, UPS, and Kelvin probe methods confirming the formation of the target materials. UPS and Kelvin probe results demonstrate an alteration of the Fermi level position in Ti-doped BiVO4 depending on the dopant concentration. Consequently, heterostructured electrodes based on pristine and Ti(10 at%)-doped BiVO4 are formed providing the maximum gradient between the Fermi level position of the heterostructure's components. Photoelectrochemical studies demonstrate that Ti doping significantly affects the behavior of electrodes switching them from anodic to cathodic regime. Moreover, either anodic or cathodic behavior of heterostructured electrodes depends on the spatial layer-by-layer construction of the electrodes, that is, on the direction of the Fermi level gradient between heterostructure's components. Photoelectrochemical experiments performed with a tandem photoelectrochemical cell with two photoactive electrodes based on pristine and Ti(10 at%)-doped BiVO4 demonstrate that stable photocurrent in the system is generated only when both photoelectrodes are photoexcited that confirms that the pre-existing Fermi level gradient between the two electrodes induces the driving force for photoelectrochemical activity in the tandem cell.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 10","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400679","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144131593","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

Determination of the Chemical Oxygen Demand Using a Cu-Au Anisotropic Nanoalloy-Modified Screen-Printed Electrode: A Sustainable and Sensitive Solution 利用Cu-Au各向异性纳米合金修饰的丝网印刷电极测定化学需氧量：一种可持续和敏感的解决方案

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-25 DOI: 10.1002/celc.202400610

Federica Simonetti, Francesca Polli, Roberta Di Costanzo, Leonardo Nichele, Giulia Simonetti, Jang-Yeon Hwang, Marco Agostini, Franco Mazzei, Rosaceleste Zumpano

{"title":"Determination of the Chemical Oxygen Demand Using a Cu-Au Anisotropic Nanoalloy-Modified Screen-Printed Electrode: A Sustainable and Sensitive Solution","authors":"Federica Simonetti, Francesca Polli, Roberta Di Costanzo, Leonardo Nichele, Giulia Simonetti, Jang-Yeon Hwang, Marco Agostini, Franco Mazzei, Rosaceleste Zumpano","doi":"10.1002/celc.202400610","DOIUrl":"https://doi.org/10.1002/celc.202400610","url":null,"abstract":"This study presents a new, non-enzymatic electrochemical sensor based on gold-copper nanobrambles (Au-CuONBs) for rapid and accurate chemical oxygen demand (COD) monitoring in water. COD, an essential metric of water quality, is typically assessed using labor-intensive methods with high toxicity and limited tolerance to chloride interference. The Au-CuONBs-based sensor here proposed overcomes these limitations by offering high sensitivity, a broad linear detection range (0.1–10.3 mM glucose), and robust tolerance to chloride ions, enabling accurate measurements even in challenging water samples. Tested on real wastewater samples, the sensor delivered results closely aligned with standard COD methods, with a detection limit of 11 μM and response time of only 5 min. This portable, cost-effective sensor provides a promising solution for sustainable on-site COD analysis, enhancing water quality management and environmental monitoring.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 10","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202400610","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144131592","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

Diethylene Glycol Diethyl Ether as Electrolyte Solvent for Reversible Electrochemical Magnesium Plating 二乙二醇二乙醚作为可逆电化学镀镁的电解质溶剂

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-22 DOI: 10.1002/celc.202500046

Benjamin W. Schick, Matthias Uhl, Mohammad Al-Shakran, Joachim Bansmann, Sibylle Riedel, Zhirong Zhao-Karger, Timo Jacob

{"title":"Diethylene Glycol Diethyl Ether as Electrolyte Solvent for Reversible Electrochemical Magnesium Plating","authors":"Benjamin W. Schick, Matthias Uhl, Mohammad Al-Shakran, Joachim Bansmann, Sibylle Riedel, Zhirong Zhao-Karger, Timo Jacob","doi":"10.1002/celc.202500046","DOIUrl":"https://doi.org/10.1002/celc.202500046","url":null,"abstract":"Due to their high theoretical energy density and the abundance of magnesium, rechargeable Mg batteries are promising candidate systems for future energy storage. However, finding suitable electrolytes that are compatible with the metallic Mg electrode and enable highly reversible Mg plating is still challenging. Typical electrolytes for rechargeable magnesium batteries are based on ether solvents such as tetrahydrofuran (THF), dimethoxyethane (DME), or higher glymes. Drawbacks are the high volatilites and low flashpoints of THF and DME and their harmfulness, problematic factors for industrial applicability. One potential alternative is diethylene glycol diethyl ether (DEGDEE) which is also an ether, but has significantly higher boiling and flashpoints than THF and DME, and is from today's perspective less harmful than any of the previously mentioned solvents. To test the suitability and stability of this class of electrolytes, different Mg salts in combination with DEGDEE for their electrochemical Mg plating and stripping properties are studied. Although Mg deposition needs higher overpotentials than for their DME-based counterparts, the investigated electrolytes enable reversible Mg plating with relatively high Coulombic efficiencies, making DEGDEE a promising alternative electrolyte solvent for rechargeable Mg batteries.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 12","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500046","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256305","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

Heterogeneous Electrocatalytic CO2 Reduction by Supported Molecular Catalysts Well Dispersed on Electrode Surface 分散在电极表面的负载型分子催化剂的非均相电催化CO2还原

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-22 DOI: 10.1002/celc.202500074

Ke Ma, Shiyu Zhang, Weixuan Nie

{"title":"Heterogeneous Electrocatalytic CO2 Reduction by Supported Molecular Catalysts Well Dispersed on Electrode Surface","authors":"Ke Ma, Shiyu Zhang, Weixuan Nie","doi":"10.1002/celc.202500074","DOIUrl":"https://doi.org/10.1002/celc.202500074","url":null,"abstract":"Electrochemical CO2 reduction (CO2R) to value-added products using renewable electricity offers a promising approach toward achieving carbon neutrality. Among various electrocatalysts, molecular catalysts, particularly transition metal complexes, stand out due to the high selectivity for single specific products and desirable tunability, enabling rational optimization of catalytic performance. However, their practical application is hindered by low operating current densities and challenges in catalyst recycling. To address these limitations, immobilizing molecular catalysts on electrode surfaces has emerged as an effective strategy for integrating selective molecular catalysts into heterogeneous catalysis. This mini review focuses on a distinct category of heterogenized molecular catalysts—those molecularly dispersed and supported on substrates or electrode surfaces-which exhibit remarkable catalytic activity at the single-molecule level and the ability to drive deep CO2 reduction (beyond two electrons) under certain conditions. Recent progress in this field is comprehensively discussed, emphasizing the critical impacts of molecule-level dispersion and catalyst-support interactions on electronic properties, multi-electron transfer kinetics, and overall catalytic performance. Moreover, the overview of potential applications of supported molecular catalysts beyond electrochemical CO2R is provided at the end. This mini review aims to offer valuable insights for the future design of efficient and scalable electrocatalysts for sustainable CO2 conversion.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 13","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500074","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144551349","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

Enhanced Reversibility of Li-Rich Binary Oxide Cathodes through Synergistic Interfacial Regulation for Improved Charge Transfer Kinetics at High Depth of Charge/Discharge 通过协同界面调节提高富锂二元氧化物阴极的可逆性，以改善高深度充放电时的电荷转移动力学

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-21 DOI: 10.1002/celc.202500045

Qing Zhang, Jiaoyang Cheng, Jinxin Cao, Fang Lian

{"title":"Enhanced Reversibility of Li-Rich Binary Oxide Cathodes through Synergistic Interfacial Regulation for Improved Charge Transfer Kinetics at High Depth of Charge/Discharge","authors":"Qing Zhang, Jiaoyang Cheng, Jinxin Cao, Fang Lian","doi":"10.1002/celc.202500045","DOIUrl":"https://doi.org/10.1002/celc.202500045","url":null,"abstract":"Lithium-rich manganese-based oxides are accepted as a promising cathode material for high-energy density batteries. However, they suffer from irreversible structural transformations and detrimental interfacial reactions, especially under deep charge/discharge states, causing severe voltage fade and capacity degradation. Herein, Li-rich binary oxide Li1.16(Ni0.25Mn0.75)0.84O2 is proposed to dual-coated by superionic conductor Li1.4Al0.4Ti1.6(PO4)3 and conductive polymer polyaniline, displaying nearly two orders of magnitude promotion for lithium ion transmission coefficient (10−9.5 cm2 S−1) at the end of charge/discharge. COMSOL Multiphysics simulation indicates the synergistic interfacial coating elevates the homogeneous distribution of lithium–ions and current density, improving utilization rates of lithium–ions, mitigating irreversible structural transformation, and suppressing the dissolution of transition metal ions and side reactions between the cathode and electrolyte. Therefore, Li1.16(Ni0.25Mn0.75)0.84O2 with the significantly promoted charge transfer kinetics exhibits greatly strengthened specific capacity of 293.6 mAh g−1 at 20 mA g−1 within the range of 2.0–4.8 V, with an increased initial Coulombic efficiency of 84.42% and capacity retention of 88.94% in 150 cycles, alongside with a low voltage decay (0.23 V within 150 cycles) and a high rate capability of 160 mAh g−1 at 5 C.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 13","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500045","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144551366","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

Hydrogen Bonding and Proton Transfer Processes during the Electrochemical Reduction of Nitrosobenzene in Acetonitrile 乙腈中亚硝基苯电化学还原过程中的氢键和质子转移过程

IF 3.5 4区化学

ChemElectroChem Pub Date : 2025-04-18 DOI: 10.1002/celc.202500029

Jesús I. Palacios-Ramírez, Luis F. Hernández, Adriana Pérez-González, Annia Galano, Felipe J. González

{"title":"Hydrogen Bonding and Proton Transfer Processes during the Electrochemical Reduction of Nitrosobenzene in Acetonitrile","authors":"Jesús I. Palacios-Ramírez, Luis F. Hernández, Adriana Pérez-González, Annia Galano, Felipe J. González","doi":"10.1002/celc.202500029","DOIUrl":"https://doi.org/10.1002/celc.202500029","url":null,"abstract":"Nitrosobenzene (PhNO) is the central intermediary during the electrochemical reduction of nitrobenzene in the presence of strong and moderately strong proton donors. Its reduction affords phenylhydroxylamine (PhNHOH) as product through a global mechanism involving the exchange of two electrons and two protons. During the analysis from weak to strong proton donors (acetic to trichloroacetic acids), the hydrogen bonding association with nitrosobenzene changes the reduction pathway from stepwise to concerted. The carboxylate ions that are released during the proton transfer steps associate with the phenylhydroxylamine and make its oxidation also concerted. These processes are studied by cyclic voltammetry, and the experimental voltammograms are simulated in the framework of a full mechanism in which the reduction steps as well as those of oxidation are considered. Information about the reliability of the association complexes involved in different steps is obtained from electronic structure calculations.","PeriodicalId":142,"journal":{"name":"ChemElectroChem","volume":"12 12","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202500029","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256500","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