Review
Chemistry, Multidisciplinary
Lili Liu, Haipeng Guo, Lijun Fu, Shulei Chou, Simon Thiele, Yuping Wu, Jiazhao Wang
Summary: Research has found that lithium-air batteries operating in ambient air face challenges such as H2O and CO2, which need to be overcome by improving oxygen-selective membranes, catalysts, and electrolyte alternatives. Furthermore, separator modification and lithium anode protection are important steps in addressing these issues. Challenges and directions for the future development of Li-air batteries are also discussed.
Article
Engineering, Environmental
Lin Qiao, Lirong Gao, Di Huang, Yang Liu, Chi Xu, Da Li, Minghui Zheng
Summary: In this study, a comprehensive analysis method was used to study complex harmful compounds in ambient air. Active compounds with biological effects were identified, providing new insights into pollutant priority control and clinical therapeutic strategies.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Jie Liang, Longcheng Zhang, Xun He, Yan Wang, Yongsong Luo, Dongdong Zheng, Shengjun Sun, Zhengwei Cai, Jing Zhang, Ke Ma, Yinyuan Zheng, Xuping Sun, Chengwu Tang
Summary: By introducing chlorine-cycle as a redox mediator, this study developed a simple approach to expand conversion sites from a limited electrode surface to the entire electrolyte, achieving efficient, economical, and environmentally friendly nitrate synthesis. The nitrate formation rates reach 115.45 mg cm(-2) h(-1) in a three-electrode system and 790.1 mg cm(-2) h(-1) in a two-electrode system, both significantly higher than the rates of state-of-the-art nitrogen electrooxidation, confirming the remarkable effectiveness of this strategy in producing nitrate homogeneously and electrochemically. Importantly, almost no side product nitrite is generated in this work. In addition, the structure changes of electrodes are investigated using (quasi)-in situ techniques.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Organic
Zhi-Xian Wu, Xue-Tao Xu, Yu-Xin Luan
Summary: N-Hydroxy benzimidazoles (NHBIs) have been proven to be efficient hydrogen atom abstractors (HAAs), but their potential in catalysis has been underexplored. In this study, we investigated their catalytic performance in various hydrogen atom transfer reactions. Specifically, we demonstrated a copper/NHBI co-catalyzed synthesis of 2-phosphonopyrroles through cascade [3 + 2] annulation-aromatization. NHBI played a crucial role in both the annulation step and the subsequent aromatization. Additionally, NHBI-catalyzed annulation with an imine and C-H oxidation reactions were also achieved. Notably, NHBIs bearing a docking group that can recognize substrates were explored as bifunctional HAT catalysts for the first time.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Lisi Xie, Xue-Peng Zhang, Bin Zhao, Ping Li, Jing Qi, Xinai Guo, Bin Wang, Haitao Lei, Wei Zhang, Ulf-Peter Apfel, Rui Cao
Summary: An enzyme-inspired Fe porphyrin 1 has been found to be an efficient catalyst for both ORR and OER, outperforming its imidazole-free analogue 2. Experimental results suggest that 1 can prevent the formation of less effective trans HO-Fe-V=O, thereby improving the efficiency of O-O bond formation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Electrochemistry
Xiangyu Wen, Xingbao Zhu, Yuanguo Wu, Yu Wang, Zining Man, Zhe Lv, Xi Wang
Summary: In this study, an oxygen selective membrane was fabricated using an electrostatic spinning method to prevent moisture permeation. The lithium-air battery showed significant improvement in cycling time under the protection of the oxygen selective membrane, and the membrane performance was accurately characterized using electrochemical methods.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Zongying Han, Hao Yu, Changlun Li, Shixue Zhou
Summary: A method for synthesizing oxygen-rich activated carbon without inert gas has been developed in this study, which involves simple mixing and high temperature treatment under ambient atmosphere. The activated carbon produced through this method exhibits high specific surface area and hydrogen storage density, and is potentially applicable to various precursors, offering a low-cost synthesis pathway for functional carbon materials.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Ji Hyeon Kim, Hongryeol Yun, Dong Won Kang, Jinwoo Shin, Minjung Kang, Nem Singh, Ji-Eun Jeong, Chang Seop Hong, Jong Seung Kim
Summary: The study introduces a novel method for the selective detoxification of mustard gas simulants using porous organic polymer catalysts through photo- and sono-catalysis under ambient conditions. The method efficiently converts toxic substances into non-toxic ones in atmospheric conditions.
Review
Environmental Sciences
Shweta Yadav, Sachchida N. Tripathi, Maheswar Rupakheti
Summary: This review provides an overview of particulate matter (PM) pollution in India and the current status of source apportionment (SA) studies. The findings reveal that only a small number of studies have accurately analyzed the contributions from different sources of PM. The majority of studies focus on the Delhi National Capital Region (NCR) and the Indo-Gangetic plain, with PM10 and PM2.5 being the most studied size fractions. The review also discusses the steps and techniques involved in SA and proposes recommendations for future research on robust SA studies.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Economics
Chon-Kit Ao, Yilin Dong, Pei-Fen Kuo
Summary: This study, based on a nationally representative longitudinal survey in China, demonstrates that exposure to both indoor and ambient air pollution has adverse effects on mental health, especially increasing the likelihood of depressive symptoms in the elderly population. Furthermore, the study shows that the impact of air pollution is more pronounced in less educated individuals and females.
CHINA ECONOMIC REVIEW
(2021)
Article
Chemistry, Physical
Wanwan Wang, Yu Wang, Chia-Hsin Wang, Yaw-Wen Yang, Yi-Chun Lu
Summary: Direct probing of metal-oxygen chemistry at the solid/liquid interface is crucial for understanding the reaction mechanism of metal-air batteries. This study, using APXPS, demonstrates in situ probing of potassium oxygen reduction/evolution reaction in ionic liquid-based air batteries, revealing new reaction pathways and root causes of irreversible cell chemistry. The formation and oxidation of K2O2 trigger irreversible cell chemistry, contributing to capacity decay in K-O-2 batteries, and impurities in air such as H2O and CO2 reduce chemical reversibility of ORR and OER.
ENERGY STORAGE MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Gozde Yalcin-Ozkat, Ronak H. Ersan, Mahmut Ulger, Seda T. Ulger, Serdar Burmaoglu, Ilkay Yildiz, Oztekin Algul
Summary: The increase in drug-resistant strains of Mycobacterium tuberculosis has driven researchers to seek new drug targets. In this study, the antitubercular activity of benzimidazole derivatives was experimentally determined, and molecular docking studies revealed their interaction with the DprE1 enzyme.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Chemistry, Organic
Jose P. L. Roque, Mario T. S. Rosado, Rui Fausto, Igor Reva
Summary: Monomers of benzimidazole trapped in an argon matrix were characterized as 1H-tautomers and their photochemistry was investigated. Photoproducts including 4H and 6H-tautomers and isocyano-containing compounds were identified. Mechanistic analysis revealed two reaction pathways involving cleavage of NH bond or five membered ring, leading to the formation of radicals and subsequent recombination with detached H atoms.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Review
Chemistry, Medicinal
C. G. Arya, Ramesh Gondru, Yupeng Li, Janardhan Banothu
Summary: This study summarizes the improvement of pharmacokinetic and pharmacodynamic properties of coumarin and benzimidazole compounds through molecular hybridization, and highlights the biological properties and functions of different classes of their hybrids. These hybrids exhibit diverse biological activities, including anticancer, antiviral, antimicrobial effects.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2022)
Article
Computer Science, Artificial Intelligence
D. Narasimhan, M. Vanitha
Summary: Air pollution is a significant global concern, causing harm to the environment and human health, leading to various diseases and climate issues. It is crucial to take necessary measures to address air pollution effectively.
Article
Chemistry, Organic
Dilek Isik Tasgin, Irem Bayraktar
Summary: We present a synthetic method for pyrrolizine-3-one derivatives and investigate their photophysical properties. These compounds are prepared through a series of reactions involving substituted pyrroles in one-pot, two-step oxidation, and intramolecular cyclization processes. The photophysical properties of the synthesized compounds are studied using UV-Vis and fluorescence spectroscopy in various solvents. The introduction of pyrrolyl substituents has a significant impact on Stokes shifts and quantum yield values.
SYNTHETIC COMMUNICATIONS
(2024)
Article
Chemistry, Organic
Satish Kumar Burra, Vaikunta Rao Lakinani, Raghunadh Akula, Chiranjeevi Yankkanti
Summary: A novel and green strategy for the construction of biologically relevant substituted indolyl-4H-chromenes scaffolds is reported, using L-proline as a catalyst and water as a promoter solvent. This catalytic system offers wider applicability, shorter reaction times, and high yields, making it an ideal condition for green chemistry.
SYNTHETIC COMMUNICATIONS
(2024)
Review
Chemistry, Organic
Abouelhaoul El Alami, Amine El Maraghi, Fatima Youssoufi, Assiya Atif, Hamid Sdassi
Summary: Nitrobenzimidazoles have become increasingly important in the design of new compounds in medicinal, therapeutic and chemical fields. This review provides an overview of the synthesis strategies and biological activities of nitrobenzimidazole derivatives.
SYNTHETIC COMMUNICATIONS
(2024)
Article
Chemistry, Organic
Nilesh Raghunath Khedkar, Alex Joseph, Milind Sindkhedkar
Summary: In this study, a new library of 3-(2-(pyrimidin-5-yl)thiazol-4-yl)-1,2,4-oxadiazole compounds was designed and synthesized as potential anticancer agents using in silico fragment-based drug design. The compounds were tested for their anticancer activity in vitro, and one compound exhibited excellent activity against multiple cancer cell lines.
SYNTHETIC COMMUNICATIONS
(2024)
Article
Chemistry, Organic
Terungwa H. Iorkula, Bryce A. Tolman, Scott R. Burt, Matt A. Peterson
Summary: A new method for synthesizing C-6 substituted products has been discovered in this study, which utilizes lower doses of fluoride and CsF as a catalyst, with high reaction yields and cost-effectiveness under suitable conditions.
SYNTHETIC COMMUNICATIONS
(2024)
Review
Chemistry, Organic
Ranjana Aggarwal, Swati Sharma
Summary: This review article mainly focuses on the synthesis of 3(5)-trifluoromethylpyrazoles via condensation reaction of trifluoromethyl-beta-diketones with hydrazines. It emphasizes the importance of fluorine-containing compounds and pyrazoles in the field of biology. The literature reported condensation reactions of trifluoromethyl-beta-diketones with hydrazines are covered.
SYNTHETIC COMMUNICATIONS
(2024)
Article
Chemistry, Organic
F. M. Alshareef, Sami A. Al-Harbi, Esam S. Allehyani, Omeima Abdullah, Magdy A. Ibrahim
Summary: This study aimed to construct a novel category of linear annulated chromeno[3',2':5,6]pyrido[2,3-d][1,3]thiazolo[3,2-a]pyrimidines. The chemical reactivity of the synthesized compounds was investigated, and they showed significant antimicrobial activity against various strains.
SYNTHETIC COMMUNICATIONS
(2024)
Article
Chemistry, Organic
Preethi Dhanapal, S. L. Manju
Summary: Thiazole based Schiff base scaffolds have become an integral part of drug development in recent years, playing a versatile role as building blocks for lead drug molecules. This study presents a facile one pot synthetic method for producing novel 4-aryl thiazoles with high yield, shorter reaction time, and milder conditions, without the need for catalysts or purification techniques.
SYNTHETIC COMMUNICATIONS
(2024)