Article
Chemistry, Multidisciplinary
Disni Gunasekera, Jyoti P. Mahajan, Yanick Wanzi, Sachini Rodrigo, Wei Liu, Ting Tan, Long Luo
Summary: Here, a unique electrosynthetic method is reported, which selectively oxidizes tertiary amines to generate alpha-amino radical intermediates instead of iminium cations, providing arylation products. An electrochemical descriptor obtained from cyclic voltammetry studies predicts the optimal alternating current (AC) frequency for various amine substrates, avoiding time-consuming trial-and-error methods for optimizing reaction conditions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Inorganic & Nuclear
Minghui Chen, Chen Wang, Fei Chen, Hongjie Li, Yunpeng Wang, Haitao Ma
Summary: In this study, a highly sensitive and precise electrochemical biosensor for glucose detection was developed by coupling the synergetic catalysis of Cu-Zn-Ni oxide films. The electrode exhibited an impressive linear response in the concentration range of 0.1-1.0mM glucose, with a sensitivity of 3775.11 mu A.mM(-1). It also demonstrated remarkable stability and anti-interference properties, making it suitable for non-enzymatic glucose sensing applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Yonghyeon Kim, Young Wook Lee, Seunghoon Lee, Jintaek Gong, Hee-Seung Lee, Sang Woo Han
Summary: This study reported a new strategy for the synthesis of Pd-Pt-Ag ternary alloy HNSs through a self-templating approach. By simultaneously reducing multiple metal precursors in the presence of CTAC, the morphology of HNSs can be controlled, with the size and hollowness of HNSs adjustable.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Jianwei Zhang, Biswanath Das, Oscar Verho, Jan-E Backvall
Summary: Here we describe an electrochemical oxidative palladium-catalyzed carbonylation-carbocyclization reaction for the synthesis of gamma-lactones and spirolactones, exhibiting excellent chemoselectivity. Interestingly, electrocatalysis was found to enhance the reaction rate of the tandem process, leading to a more efficient reaction compared to chemical redox conditions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Noemi Salardon, Guillermo Otarola, Clara Manas, Estibaliz Merino, Belen Batanero
Summary: This study describes the efficient metal-free electrosynthesis of 2,4-dinitrophenyl iodide starting from 2,4-dinitrophenylhydrazine. Surprisingly, this method minimizes the formation of anodic multilayered film under the applied experimental conditions. The sustainable iodide-mediated oxidative dehydrazination enables the coupling reaction of electrogenerated iodine with aryl radicals from electron-deficient arylhydrazines using electricity as the driving force and an inexpensive halogen source.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Zhenjie Yang, Chenyang Hu, Fengchao Cui, Xuan Pang, Yuezhou Huang, Yanchuan Zhou, Xuesi Chen
Summary: Switchable catalysis has been developed and applied in the one-pot selective copolymerization from complex mixtures, leading to the synthesis of multi-block copolymers with structural diversity and functionality.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Yujie Miao, Qiuping Huang, Dan Wen, Dongling Xie, Bo Huang, Dunmin Lin, Chenggang Xu, Wen Zeng, Fengyu Xie
Summary: Designing and developing earth-abundant electrocatalysts with high catalytic activity in alkaline media for the oxygen evolution reaction (OER) is crucial for sustainable energy development. In this study, MIL-53(Fe-Ni)/NF-2200Gs was synthesized under an external magnetic field, exhibiting exceptional catalytic activity with an overpotential of only 174 mV to achieve a geometrical catalytic current density of 10 mA cm(-2) in 1.0 M KOH, surpassing RuO2 and most Fe, Ni-based electrocatalysts.
Article
Chemistry, Organic
Bin Wu, Qixin Duan, Fengyuan Chen, Yingying Xu, Qi Zhang, Xiuzhi Xu, Jin Lin
Summary: An operationally simple electrochemical approach using low-cost and environmentally friendly FeCl3 as electrocatalysts has been developed for the synthesis of quinazolinones. By using readily available o-aminobenzamides and alcohols, the Fe/acid electrocatalytic system can produce quinazolinones in moderate to good yields through an indirect anodic oxidation/cyclization/dehydrogenation cascade under mild conditions. This method provides a practical and environmentally benign route for the preparation of quinazolinone derivatives.
Article
Electrochemistry
Wen Zhang, Manshu Zhao, Xinhua Wang, Shuguang Wang, Mingming Gao
Summary: This study investigates the behavior of graphite supported TiO2 in anodic oxidation. It is found that the TiO2/C anode generates H2O2 as an intermediate, which then indirectly decomposes to produce center dot OH. At higher potentials, the direct decomposition of H2O is the main source of OH generation, but it is inhibited by high concentrations of H2O2. The relationship between oxygen defects and center dot OH generation is experimentally established, and the mechanisms of OH generation are correlated with oxygen vacancies and Ti-OH structures.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Applied
Yeong-Jiunn Jang, Guan-Yu Chen, Yun-Lian Jhan, Pei-Ting Lo, Wei-Yu Hsu, Ke Wang, Ya-Ting Hsu, Chia-Lin Lee, Yu-Liang Yang, Yang-Chang Wu
Summary: A one-pot synthesis of substituted isocoumarin, flavone, and isoquinolinedione derivatives has been developed using a switchable C-arylation/lactonization or SNAr reaction. This base-mediated protocol proceeds under transition-metal-free conditions and selectively affords various heteroarenes in good yields. The synthetic utility of this method is demonstrated in the synthesis of potential anti-HIV and anti-coronavirus derivatives and COX-2 inhibitors. Detailed experimental and computational studies provide a comprehensive understanding of the reaction mechanism.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Review
Chemistry, Physical
Sam Mathew, Dominik Renn, Magnus Rueping
Summary: Amine transaminases play a crucial role in the synthesis of chiral amines, which are essential building blocks in pharmaceuticals and fine chemicals. Advances in enzyme discovery, process engineering, and protein engineering have significantly enhanced the use of transaminases in organic synthesis. Enzymatic cascade engineering has emerged as an efficient and environmentally friendly approach for chiral amine synthesis, allowing the generation of valuable products from inexpensive starting materials. This review focuses on the utilization of amine transaminases in enzymatic and chemoenzymatic cascades for chiral amine synthesis.
Article
Chemistry, Organic
Daichi Yamane, Haruna Tanaka, Akihiro Hirata, Yumiko Tamura, Daichi Takahashi, Yusuke Takahashi, Tohru Nagamitsu, Masaki Ohtawa
Summary: A highly efficient one-pot gamma-lactonization of homopropargyl alcohols has been developed via an alkyne deprotonation/boronation/oxidation sequence. The oxidation of alkynyl boronate leads to the formation of ketene intermediate, which then reacts with the adjacent hydroxy group to produce the gamma-lactone. Optimization of conditions and exploration of substrate scope and synthetic applications have been conducted for this efficient one-pot lactonization reaction.
Article
Environmental Sciences
Rui Fu, Peng-Shuang Zhang, Yuan-Xing Jiang, Lin Sun, Xu-Hui Sun
Summary: Electrochemical Advanced Oxidation Process (EAOP) is widely used for degrading refractory pollutants in wastewater due to its strong oxidation capacity, high degradation efficiency, simple operation, and mild reaction. Anodic oxidation (AO) is the most commonly used electrochemical process, which can occur through direct oxidation or indirect oxidation. The mechanism of AO process is influenced by factors such as electrode type, electrocatalyst material, wastewater composition, pH, applied current, and voltage levels. This paper reviews the current research progress on the AO process mechanism, discusses different mechanisms caused by influencing factors, and explores strategies to distinguish direct oxidation and indirect oxidation mechanisms. Suggestions for further studying the mechanism of electrochemical advanced oxidation are also provided.
Article
Chemistry, Multidisciplinary
Florian Sommer, C. Oliver Kappe, David Cantillo
Summary: This study presents a reagent and catalyst free electrochemical strategy for the preparation of C19 steroids, enabling several one-pot, multistep procedures for the synthesis of androgen steroids. Moreover, simultaneous anodic C17 side chain cleavage and cathodic catalytic hydrogenation of a steroid has been demonstrated, providing a convenient and highly atom economic procedure for the synthesis of saturated androgens.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Engineering, Environmental
Wen Zhang, Mingming Gao, Fei Miao, Xiaoyan Wu, Shuguang Wang, Xinhua Wang
Summary: A novel PERB system using TiO2/C as a heterogeneous electrocatalyst was fabricated for underground water remediation, successfully degrading TTC with high stability and efficiency.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Khac Minh Huy Nguyen, Martine Largeron
CHEMISTRY-A EUROPEAN JOURNAL
(2015)
Article
Chemistry, Multidisciplinary
Martine Largeron, Maurice-Bernard Fleury
CHEMISTRY-A EUROPEAN JOURNAL
(2015)
Article
Plant Sciences
Kevin Cottet, Anne Neudoerffer, Marina Kritsanida, Sylvie Michel, Marie-Christine Lallemand, Martine Largeron
JOURNAL OF NATURAL PRODUCTS
(2015)
Article
Chemistry, Organic
Khac Minh Huy Nguyen, Leslie Schwendimann, Pierre Gressens, Martine Largeron
ORGANIC & BIOMOLECULAR CHEMISTRY
(2015)
Article
Chemistry, Organic
Khac Minh Huy Nguyen, Martine Largeron
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2016)
Review
Chemistry, Organic
Martine Largeron
ORGANIC & BIOMOLECULAR CHEMISTRY
(2017)
Review
Chemistry, Organic
Martine Largeron, Khac Minh Huy Nguyen
SYNTHESIS-STUTTGART
(2018)
Article
Chemistry, Multidisciplinary
Martine Largeron, Maurice-Bernard Fleury
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2012)
Article
Chemistry, Medicinal
Anne Neudoerffer, Melanie Mueller, Claire-Marie Martinez, Annis Mechan, Una McCann, George A. Ricaurte, Martine Largeron
CHEMICAL RESEARCH IN TOXICOLOGY
(2011)
Review
Chemistry, Organic
Martine Largeron
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2013)
Article
Chemistry, Organic
Claire-Marie Martinez, Anne Neudoerffer, Martine Largeron
ORGANIC & BIOMOLECULAR CHEMISTRY
(2012)
Editorial Material
Multidisciplinary Sciences
Martine Largeron, Maurice-Bernard Fleury
Article
Chemistry, Multidisciplinary
Martine Largeron
PURE AND APPLIED CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Martine Largeron, Patrick Deschamps, Karim Hammad, Maurice-Bernard Fleury
Article
Chemistry, Multidisciplinary
Martine Largeron, Maurice-Bernard Fleury
CHEMISTRY-A EUROPEAN JOURNAL
(2017)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)