Article
Chemistry, Multidisciplinary
Huafeng Li, Mengnan Yang, Zelong Yuan, Yahao Sun, Pengtao Ma, Jingyang Niu, Jingping Wang
Summary: A novel Ru2W12-cluster bridged polyoxometalate was constructed by assembling two Ru-III cations and six lacunary Keggin fragments. It represents the largest cluster among all the Ru-containing polyoxometalates and exhibits intriguing structural features and excellent catalytic properties in the oxidation of anilines.
CHINESE CHEMICAL LETTERS
(2022)
Article
Biochemistry & Molecular Biology
Jie Zhao, Bingquan Wang, Rui Wang, Ivan V. Kozhevnikov, Korchak Vladimir
Summary: Amphiphilic hybrid catalysts were prepared by modifying [SMo12O40](2-) with tetrabutylammonium bromide (TBAB), 1-butyl-3-methylimidazole bromide (BMIMBr), and octadecyl trimethyl ammonium bromide (ODAB). The catalysts were characterized by various techniques and showed favorable activity for removing sulfur compounds at room temperature in model oil and actual diesel. Different catalysts exhibited varying levels of removal effect, with [TBA](2)SMo12O40 catalyst showing the best performance.
Article
Multidisciplinary Sciences
Narges Zarei, Mohammad Ali Zolfigol, Morteza Torabi, Meysam Yarie
Summary: A new heterogeneous catalytic system was designed and synthesized by modifying urea functionalized magnetic nanoparticles with choline chloride [Fe3O4@SiO2@urea-riched ligand/Ch-Cl]. The synthesized Fe3O4@SiO2@urea-riched ligand/Ch-Cl was characterized using various techniques including FT-IR spectroscopy, FESEM, TEM, EDS-Mapping, TGA/DTG and VSM techniques. It was found that the catalytic usage of Fe3O4@SiO2@urea-riched ligand/Ch-Cl showed satisfactory results in the synthesis of hybrid pyridines with sulfonate and/or indole moieties, demonstrating advantages such as short reaction times, convenience of operation and relatively good yields of obtained products. Furthermore, the catalytic behavior of several formal homogeneous DESs was investigated and a proposed cooperative vinylogous anomeric-based oxidation pathway was suggested as a rational mechanism for the synthesis of new hybrid pyridines.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Physical
Chengchun Zhao, Ya Xie, Da Shi, Han Yu
Summary: Selective oxidation of alkylarene is a straightforward and attractive method for synthesizing aromatic aldehydes, ketones, and aromatic acid derivatives. We synthesized a Cr(III) catalyst, (NH4)(3)[CrMo6O18(OH)(6)], which exhibits reasonable activity for the selective oxidation of alkylarenes under mild conditions. The catalyst, supported by a central chromium mononucleus and a cyclic inorganic ligand composed of six (MoO6)-O-VI octahedra, overcomes the disadvantages of expensive and non-recyclable organic ligands. It is efficient, environmentally friendly, and can be recycled at least six times with high activity. Moreover, a wide range of substituted alkylarenes are compatible, providing the corresponding carbonyl compounds in moderate-to-high yields.
Article
Chemistry, Multidisciplinary
Chifeng Li, Kazuya Yamaguchi, Kosuke Suzuki
Summary: The selective synthesis of a tetranuclear vanadium-containing phosphomolybdate was achieved by using a pyridine-protected template, addressing the issue of randomly distributed isomers and undesirable impurities generated during the traditional one-pot synthesis in aqueous media.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Anjali Patel, Jay Pat, Soyeb Pathan
Summary: In this study, a sustainable green catalyst was proposed for the aqueous phase conversion of levulinic acid to gamma-valerolactone. The catalyst showed a high conversion rate of 95% and could be reused up to three cycles without loss of activity.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Peng Jin, Huijuan Wei, Limin Zhou, Donghui Wei, Yiqiang Wen, Bin Zhao, Xiangyu Wang, Baojun Li
Summary: The study employed [Ni (OH)6W6O18]4- as an effective oxidation catalyst for green synthesis of adipic acid using aqueous H2O2, achieving high yields without the need for organic solvents or phase-transfer catalysts. Through spectroscopy characterization and density functional theory calculation, the detailed catalytic mechanism for this green synthesis method was proposed.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Physical
Qiushi Yin, Zihao Xu, Tianquan Lian, Djamaladdin G. Musaev, Craig L. Hill, Yurii V. Geletii
Summary: This paper examines the application of Tafel-like analysis in the oxidation of water, as well as experimental and theoretical research on two homogeneous catalysts, Ru4POM and Co4POM.
Article
Chemistry, Inorganic & Nuclear
Xianqiang Huang, Sen Liu, Zhen Zhou, Haizhen Zhang, Zongyin Gao, Guodong Shen, Huaiwei Wang, Zhi Wang, Qingxia Yao, Di Sun
Summary: This study developed a bottom-up strategy to construct robust metal-organic frameworks for visible-light-driven oxidation of sulfides.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Organic
Yinrong Wu, Lu Li, Kangmei Wen, Jie Deng, Jiewen Chen, Jie Shi, Ting Wu, Jianxin Pang, Xiaodong Tang
Summary: A copper-catalyzed C-3 functionalization of imidazo[1,2-a]pyridines with 3-indoleacetic acids has been developed, providing a series of compounds with potent antiproliferative activity in cancer cell lines under simple reaction conditions.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Di Zhu, Jun-qi Hai, Le-yao Wang, Xiang-li Long
Summary: Currently, benzaldehyde is mainly produced through liquid-phase chlorination of toluene followed by hydrolysis, causing environmental pollution and application limitations. In this study, a new approach was proposed to oxidize toluene to benzaldehyde using a polyoxometalate catalyst in acetic acid. By optimizing the composition and preparation conditions of the catalyst, promising experimental results were obtained.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Hai-Lou Li, Chen Lian, Guo-Yu Yang
Summary: A new ring-shaped poly(POM) compound with the highest number of titanium centers to date has been synthesized under hydrothermal conditions. This compound exhibits two types of novel chiral segments and two new linking modes, which are of great significance in the synthesis of poly(POM). Furthermore, it acts as a catalyst for various oxidation reactions.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Chemistry, Organic
Guanzhong Luo, Yu Han, Ruohan Zhang, Dongmiao Ding, Longyang Dian
Summary: This research reports a photo-induced Co-catalyzed aerobic N-N coupling of diarylamines, leading to the formation of corresponding tetraarylhydrazines. The N-N coupling reaction can be achieved under mild conditions in the presence of Co(OAc)(2)·4H(2)O and BPhen with the irradiation of light (390-395 nm).
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Keiju Wachi, Tomohiro Yabe, Takaaki Suzuki, Kentaro Yonesato, Kosuke Suzuki, Kazuya Yamaguchi
Summary: This study successfully formed thermally stable FeOx subnanoclusters on SiO2 using a diiron-introduced polyoxometalate as a precursor, which selectively converted methane into formaldehyde and carbon monoxide. The catalyst maintained stable catalytic activity even under high temperature conditions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Analytical
Xiqian Sun, Qing Lan, Jing Geng, Mengli Yu, Yecheng Li, Xiaohong Li, Li Chen
Summary: By assembling TiO2 nanoparticles decorated with polyoxometalate (POM) and organic dye molecules, we have achieved accelerated room-temperature sensing of NO2 gas under visible light illumination. This method improves the sensitivity and response/recovery time of the gas sensors, while maintaining high selectivity and relatively low detection concentration.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Multidisciplinary
Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang
Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu
Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti
Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin
Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu
Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin
Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli
Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov
Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Showket Ahmad Bhat, Mohd Ikram
Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro
Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Zhihua Liu, Jinzhe Li, Jianguo Zhou
Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang
Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout
Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su
Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Saikat Khamarui, Sirshendu Ghosh
Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.
NEW JOURNAL OF CHEMISTRY
(2024)