Article
Chemistry, Physical
Tianzhao Hu, Zhicheng Ye, Yuzuo Wang, Xuning Gao, Zhenhua Sun, Juan Li, Shaorui Chen, Cheng Lian, Qun Xu, Feng Li
Summary: Regulators can enhance and protect water molecules, expand the electrochemical window, and enable the development of high voltage aqueous symmetric capacitors and aqueous lithium-ion batteries. This study provides a simple and effective method for developing aqueous cells and offers new insights into the research and utilization of H-bonds and intermolecular interactions in water.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Rituraj Das, Dhrubajyoti Talukdar, Plaban J. Sarma, Hemrupa Kuilya, Ranjit Thakuria, Diganta Choudhury, Sanjeev P. Mahanta
Summary: This study investigates the significance of the hydroxyl moiety position and its role in intramolecular H-bonding in determining the selective colorimetric response to fluoride in functionalized thiourea derivatives. A methodology involving metal ion coordination for stabilizing deprotonated thiourea is proposed for the colorimetric sensing of fluoride in water medium. The interaction mechanism is thoroughly studied using various techniques and further validated by DFT calculations.
DALTON TRANSACTIONS
(2021)
Article
Environmental Sciences
Sandeep Kumar, Ravinderdeep Singh Brar, J. Nagendra Babu, Amarjeet Dahiya, Sandip Saha, Avneesh Kumar
Summary: The study characterized the nano-zerovalent copper supported by pistachio shell powder, which exhibited excellent adsorption capacity for Cr(VI) under optimized conditions with a maximum removal rate of 110.9 mg/g.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Fabian M. Schuett, Sven J. Zeller, Maximilian J. Eckl, Felix M. Matzik, Maren-Kathrin Heubach, Tanja Geng, Johannes M. Hermann, Matthias Uhl, Ludwig A. Kibler, Albert K. Engstfeld, Timo Jacob
Summary: A simple method for fabricating stable 3D-printed micro-reference electrodes using polyvinylidene fluoride is proposed in this study, showing good chemical inertness in strong acids, bases, and non-aqueous solvents. Experimental results demonstrate the versatility and stability of this new class of micro-reference electrodes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Thomas Mairegger, Haobo Li, Christoph Griesser, Daniel Winkler, Jakob Filser, Nicolas G. Hoermann, Karsten Reuter, Julia Kunze-Liebhaeuser
Summary: Transition metal carbides, especially Mo2C, are efficient electrocatalysts for CO2 reduction. However, in aqueous electrolytes, only the hydrogen evolution reaction occurs due to the formation of a thin oxide layer. In this study, we investigate the CO2 reduction activity of Mo2C in a non-aqueous electrolyte and find a preference for carbon monoxide production. We also observe that the non-aqueous acetonitrile electrolyte determines the catalytic selectivity of CO2 reduction.
Article
Environmental Sciences
Heegon Kim, Seon Yong Lee, Jae-Woo Choi, Kyung-Won Jung
Summary: In this study, nitrogen-doped hydrochar derived from corncob was used as an effective adsorbent for the simultaneous removal of Cu(II) and Cr(VI) ions from industrial wastewater. NH4Cl played a crucial role in enhancing the adsorption capacity of the nitrogen-doped hydrochar. The maximum adsorption capacities of Cu(II) and Cr(VI) on the nitrogen-doped hydrochar were significantly higher than those of the pristine hydrochar. Moreover, the synergistic effect between Cu(II) and Cr(VI) in the binary-component system greatly enhanced the adsorption capacity of the nitrogen-doped hydrochar.
Article
Biochemistry & Molecular Biology
Ivayla Pantcheva, Radoslava Stamboliyska, Nikolay Petkov, Alia Tadjer, Svetlana Simova, Radostina Stoyanova, Rositza Kukeva, Petar Dorkov
Summary: This study investigated the complexation processes and properties of veterinary macrolide antibiotics tylosin and tilmicosin with copper ions using various physicochemical techniques. Experimental data revealed the formation of dinuclear and mono-species complexes, and the comparison between computed and measured parameters confirmed the main coordination unit involved in the complex formation.
Article
Electrochemistry
K. -s. Poder, J. Eskusson, E. Lust, A. Janes
Summary: The development of high efficiency energy storage systems is crucial for utilizing renewable energy and reducing greenhouse gas emissions caused by fuel combustion technologies. This study investigates the electrochemical characteristics of Zn-ion hybrid supercapacitor cells with different electrolytes, using cyclic voltammetry, constant current charge/discharge, and electrochemical impedance methods. The Ragone plots demonstrate high energy and power densities for the Zn-ion hybrid supercapacitor based on 1 M Zn(BF4)(2)/AN electrolyte (80 Wh kg(-1) and 21.2 kW kg(-1)). Some assembled ZIHSs exhibit excellent cycling and energy stability over 20000 cycles.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Crystallography
Jiehye Shin, Junghwan Do
Summary: C14H29Cu3N12NaO8S6 is a monoclinic crystal with cell parameters of a = 15.357(2) angstrom, b = 5.441(2) angstrom, c = 19.885(2) angstrom, and beta = 106.386(3)degrees. The volume is 1594.1(6) angstrom(3) and the space group is P2/n (no. 13). The crystal structure contains multiple atoms as listed in Table 2 along with their atomic coordinates and displacement parameters.
ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES
(2023)
Article
Chemistry, Multidisciplinary
Jiyuan Liu, Pengsong Li, Jiahui Bi, Yong Wang, Qinggong Zhu, Xiaofu Sun, Jianling Zhang, Zhimin Liu, Buxing Han
Summary: A homo-hetero doping strategy was used to construct an efficient Samarium (Sm) and sulfur (S) co-doping catalyst (Sm-x-CuSy) for the electrocatalytic CO2 reduction. The co-doping of Sm and S resulted in excellent CO2RR performance due to the synergistic effect of the homo-hetero structure. The presence of Sm and S not only stabilized the active sites but also created a favorable catalytic environment for formic acid generation.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Vishal Budhija, Phebe H. H. van Langevelde, Konstantin B. B. Krause, Beatrice Cula, D. G. H. Hetterscheid, Matthias Schwalbe
Summary: This study presents the synthesis, characterization, and reactivity studies of a hetero-dicopper complex, specifically its behavior towards oxygen reduction. The complex consists of a bischlorido copper(II) trishistidine-type coordination unit positioned above a copper porphyrin unit. Surprisingly, despite the close distance between the two coordination fragments secured by a rigid xanthene backbone, the dinuclear complex is not active towards oxygen reduction unlike its mononuclear analogues with a bispyridylamine copper center. However, the compound architecture of this multinuclear metal complex is interesting and could potentially contribute to the development of new catalysts for oxygen reduction reaction (ORR).
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Tran Van Cong, Nguyen Duc Hung, Lai Xuan Bach, Tran Van Hung, Nam Nguyen Dang
Summary: The study evaluates the application of plasma creation technology in an aqueous environment, highlighting the significant impact of factors like voltage, electrode distance, pH, conductivity, and ambient temperature on plasma appearance. Tungsten (W) electrode is found to generate plasma earliest under high voltage and larger electrode distance, producing more gas in the water-soluble plasma compared to iron (Fe) and copper (Cu) electrodes.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Inorganic & Nuclear
Claudina X. Cammack, Harry D. Pratt, Leo J. Small, Travis M. Anderson
Summary: In this study, an established asymmetric RFB was optimized to reduce capacity fade and improve energy efficiency. A series of substituted Fe(bpyR)(3)(BF4)(2) complexes were prepared to potentially achieve a higher voltage RFB. The unsubstituted Fe(bpy)(3)(BF4)(2) exhibited the highest stability and efficiency as a catholyte in both symmetric and asymmetric cells.
DALTON TRANSACTIONS
(2021)
Article
Geochemistry & Geophysics
Nikolay D. Trofimov, Boris R. Tagirov, Nikolay N. Akinfiev, Vladimir L. Reukov, Maximilian S. Nickolsky, Irina Yu. Nikolaeva, Maria E. Tarnopolskaya, Andrey A. Afanasyev
Summary: The important Cu reserves in porphyry deposits were formed by hydrothermal fluids containing Cl- and S-, which transported and deposited metals within the magmatic-hydrothermal ore systems. The solubility of chalcocite Cu2S in these fluids was determined at different temperatures and pressures, and the results showed that Cu-Cl complexes dominate over mixed CuHS-Cl complexes. Thermodynamic properties of CuHS(aq), Cu(HS)(2)(-), CuCl(aq), and CuCl2- were predicted using the HKF (Helgeson-Kirkham-Flowers) model equation of state. The AD (Akinfiev and Diamond) equation of state was also derived for CuCl(aq) in low-density fluids. The obtained data provide insights into the behavior of copper in ore-forming fluids.
Article
Chemistry, Applied
Chenyuan Zhu, Zhibin Zhang, Lixiang Zhong, Siwen Zhao, Guoshuai Shi, Bowen Wu, Huoliang Gu, Jing Wu, Xinyang Gao, Kaihui Liu, Liming Zhang
Summary: This article provides the copyright information of Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences in 2022, published by ELSEVIER B.V. and Science Press.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Engineering, Electrical & Electronic
R. M. Jagtap, S. K. Pardeshi, Aiman Nabi, Zakir Hussain, Sajjad Husain Mir, Masood Ahmad Rizvi
Summary: An attempt was made to synthesize biocompatible chiral Thiazolidine-4-carboxylic acid derivatives to investigate the influence of hydrogen bonding functionalities and solvent molecules on supramolecular aggregation behavior, with potential applications in gas storage, biosensing, and template catalysis. Single crystal X-ray diffraction studies were used to establish solid state aggregation behavior of the synthesized derivatives, which were further explored in accordance with literature reports. The findings suggest potential for further applications in biocompatible supramolecular assemblies.
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2021)
Article
Engineering, Electrical & Electronic
Shabnum Bashir, Syed Kazim Moosvi, Tabee Jan, Gaulthier Rydzek, Sajjad Husain Mir, Masood Ahmad Rizvi
JOURNAL OF ELECTRONIC MATERIALS
(2020)
Article
Chemistry, Physical
Amit Kumawat, Shabnam Raheem, Fasil Ali, Tanveer Ali Dar, Suman Chakrabarty, Masood Ahmad Rizvi
Summary: This study investigates the molecular mechanism of the mixed inhibition of AChE by ebselen and diphenyl diselenide (DPDSe) through systematic kinetic assays, intrinsic fluorescence tests, docking, and molecular dynamics (MD) simulations. The results show significant heterogeneity in the binding modes and allosteric hotspots for DPDSe on AChE, leading to non-competitive inhibition. Both ebselen and DPDSe bind strongly around the peripheral anionic site (PAS) and can enter the gorge through a side door, offering a promising novel entry point for AChE inhibitors.
JOURNAL OF PHYSICAL CHEMISTRY B
(2021)
Article
Chemistry, Multidisciplinary
Tabee Jan, Masood Ahmad Rizvi, Syed Kazim Moosvi, Mohd Hanief Najar, Sajjad Husain Mir, Ghulam Mustafa Peerzada
Summary: A polypyrrole-diphenyl diselenide nanocomposite was prepared for temperature sensing applications, showing enhanced thermal stability and a colossal dielectric constant. The material exhibits correlated barrier hopping conduction behavior and switching-type positive temperature coefficient behavior with a Curie temperature of 400 K.
Review
Electrochemistry
Aamir Hanif, Bilal Masood Pirzada, Rabia Farooq, Ghulam Mustafa Peerzada, Masood Ahmad Rizvi
Summary: This review critically evaluates the efficiency of various electrocatalysts for the conversion of CO2 into value-added chemicals, highlighting their advantages, limitations, and mechanisms of action. The study also proposes future directions and outlook based on a detailed review of different catalysts systems.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Richu, Zainab Amin, Shazia Muzaffar Banday, Poonam Rajput, Masood Ahmad Rizvi, Ashwani Kumar
Summary: Physical properties of 3,3-(phenylmethylene)bis(4-hydroxy-2H-chromen-2-one) in DMSO and solvent media with varying concentrations of ethanol have been studied, with derived parameters determined and interactions between solute-solute and solute-solvent discussed.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Farah Manzer Manhas, Shabnam Raheem, Jaswant Kumar, Pankaj Thakur, Masood Ahmad Rizvi
Summary: A novel transition metal-free photosensitized protocol has been developed for the synthesis of alpha-ketoamides via oxidative coupling of alkynes and amines in the presence of thiophenol under visible light irradiation and rose bengal dye. This reaction presents a benign visible light based milder synthetic methodology with broad functional-group tolerance.
Article
Chemistry, Organic
Neha Chalotra, Iftkhar Hussain Shah, Shabnam Raheem, Masood Ahmad Rizvi, Bhahwal Ali Shah
Summary: A visible-light-mediated site-selective oxidative annulation method was developed for the synthesis of functionalized naphthofurans by reacting naphthols with alkynes. The protocol utilizes an electron donor acceptor pair between phenylacetylene and thiophenol as a light-absorbing system, eliminating the need for an added photocatalyst. This method allows for the transformation of various types of naphthols and naphthoquinones into highly functionalized naphthofurans.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Iftkhar Hussain Shah, Sourav Kumar, Jaswant Kumar, Shabnam Raheem, Masood Ahmad Rizvi, Bhahwal Ali Shah
Summary: This approach utilizes N-halosuccinimides as the halogen source to introduce halogen at the alpha-position of terminal alkynes, without the need for a photocatalyst. It allows for the synthesis of a diverse range of alpha-haloketones from different aromatic bromo- and iodoalkynes.
Article
Engineering, Electrical & Electronic
Tabee Jan, Syed Kazim Moosvi, Mohd. Hanief Najar, Ghulam Mustafa Peerzada, Masood Ahmad Rizvi
Summary: The use of diphenyldiselenide (PhSe)(2) as a dopant in polythiophene (PTh) results in modulation of electrical properties, including negative temperature coefficient behavior, normal dispersion with changing frequency, and a series combination of resistive-capacitive elements. The incorporation of (PhSe)(2) leads to a parallel RC element dominated by trap filled space charge limited conduction (SCLC) with negative temperature coefficient behavior. This modulation in electrical properties is attributed to the microstructure of the nanocomposite, where the compact PTh chains are structured by (PhSe)(2) dopant through pi-pi stacking interaction.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Organic
Muneer-ul-Shafi Bhat, Majid Ahmad Ganie, Masood Ahmad Rizvi, Shabnam Raheem, Bhahwal Ali Shah
Summary: A photoredox thioformylation method using nitromethane as a formyl anion equivalent has been developed for the synthesis of (E)-1,2-difunctionalized acrylaldehyde from terminal alkynes. This strategy introduces an adaptable aldehyde function across an alkyne and provides a new route to synthesizing alpha-alkyl/aryl aldehydes.
Article
Chemistry, Organic
Majid Ahmad Ganie, Muneer-ul-Shafi Bhat, Masood Ahmad Rizvi, Shabnam Raheem, Bhahwal Ali Shah
Summary: A mild photoredox approach for the one-step synthesis of thiolated 2-aminothiazoles has been reported. Incorporating a thio group onto electron-rich heteroarenes such as aminothiazoles using conventional nucleophilic aromatic substitution presents a significant challenge due to polarity mismatch. This study demonstrates a remarkable site-selective installation of a thio group at the C-5 position of the electron-rich aminothiazole skeleton, and its successful application for the postfunctionalization of drugs and natural products.
Article
Chemistry, Organic
Majid Ahmad Ganie, Faheem Fayaz, Muneer-ul-Shafi Bhat, Masood Ahmad Rizvi, Shabnam Raheem, Bhahwal Ali Shah
Summary: A mild approach for the synthesis of N-acyl-N,O-hemiacetals has been reported, utilizing an electron donor-acceptor complex. This protocol allows for direct access to electrophilic N-acylimines at room temperature without prefunctionalization of the hydroxyl group. The in situ generated N-acylimine reacts with different nucleophiles to yield diverse scaffolds.
Article
Chemistry, Multidisciplinary
Majid Ahmad Ganie, Muneer-Ul-Shafi Bhat, Masood Ahmad Rizvi, Shabnam Raheem, Bhahwal Ali Shah
Summary: A new photoredox approach has been reported for the one-step synthesis of oxazetidines with a free -NH group, using the combined use of alkyne, thiophenol, and azide. The synthesized oxazetidine with the -NH group was found to be stable enough for various late-stage transformations.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Jaswant Kumar, Ajaz Ahmed, Sourav Kumar, Shabnam Raheem, Masood Ahmad Rizvi, Bhahwal Ali Shah
Summary: This study presents a visible light-mediated approach for the one-step synthesis of alpha-alkoxy/hydroxy diarylacetaldehydes using alcohols as nucleophiles. The method involves the oxidative coupling of alkynes with benzoquinone and alcohols at room temperature, enabling the construction of a highly functionalized quaternary center. The use of copper(I) cyanide as a catalyst increases the electrophilicity of in situ generated p-quinone methides, allowing alcohols to act as nucleophiles. This mild and simple protocol shows no discrimination between aliphatic and aromatic alkynes as coupling partners.
NEW JOURNAL OF CHEMISTRY
(2022)
