Article
Agricultural Engineering
Hengyu Shen, Yangtao Zhou, Guodong Wen, Lei Xu, Qiuyan Ding, Yanan Guan, Zhenyuan Yang, Yanzhao Sun, Xin Gao, Jinsong Zhang, Xiaolei Fan, Yilai Jiao
Summary: This study developed a highly active and stable composite catalyst of polyoxometalates (POMs) supported on zeolite for the synthesis of ethyl lactate. The stability of the zeolitic support and the support heteropolyacid were found to be equally important for obtaining a stable catalyst.
BIOMASS & BIOENERGY
(2022)
Article
Materials Science, Multidisciplinary
Erfan Omid Najafabadi, Fatemeh Razi Astaraei, Meysam Tayebi, Zohreh Masoumi, Omran Moradlou, Mohamad Mohsen Momeni, Hyeon-Gook Kim, Fazele Karimian Bahnamiri, Masoud Khalili, Byeong-Kyu Lee
Summary: To address the issues of high charge recombination rate and low photoactivity of bismuth vanadate (BiVO4), this study proposes embedding cobalt polyoxometalate (POM) within the network of polypyrrole (PPy) coated on BiVO4 to promote charge injection and separation. Experimental results show that the simultaneous incorporation of PPy and POM significantly enhances the current, hole extraction efficiency, and charge separation of BiVO4.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Environmental
Pengtao Fang, Shuqian Xia, Xingmei Lu
Summary: The development of catalysts with high thermal stability, high catalytic activity, and high cycling performance is crucial in PET alcoholysis research. In this study, the researchers achieved rapid and complete degradation of PET by utilizing the high specific surface area and numerous pores formed by PET swelling at high temperatures. The polyoxometalate (POM) catalysts not only provided a multi-active site microenvironment but also allowed for the recycling of the catalyst over 30 times.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Pengtao Fang, Xingmei Lu, Qing Zhou, Dongxia Yan, Jiayu Xin, Junli Xu, Chunyan Shi, Yongquan Zhou, Shuqian Xia
Summary: Controlled degradation of macromolecules, specifically PET, is challenging but important for their subsequent utilization. A strategy for simultaneous degradation of the inner and outer layers of PET was proposed, achieving controlled degradation. Additionally, a stable Dawson type Polyoxometalates (POMs) catalyst was synthesized and successfully applied in PET alcoholysis, producing desired oligomer products.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Huisi Zhao, Chuanqi Zhao, Zhengwei Liu, Jiadai Yi, Xuemeng Liu, Jinsong Ren, Xiaogang Qu
Summary: Due to their reversible multi-electron redox transformations, polyoxometalates (POMs) have been utilized to modulate the electronic environment of metal nanoparticles for catalysis. Additionally, POMs possess unique electronic structures and acid-responsive self-assembly ability. Leveraging these properties, we have developed copper-doped molybdenum-based POM nanoclusters (Cu-POM NCs) as a highly efficient bioorthogonal catalyst, demonstrating selective antibiofilm therapy responsive to pathologically acidic conditions and H2S.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Siyuan Zou, Hongxia Wang, Songnan Li, Bin Lu, Jingxiang Zhao, Qinghai Cai
Summary: The study focused on the catalytic performance of iron and vanadate modified phosphotungstate for methanol oxidation, optimizing key reaction parameters. The results showed high activity and selectivity of the composite for methanol oxidation.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Chaima Brahmi, Mahmoud Benltifa, Mariem Ghali, Frederic Dumur, Corine Simonnet-Jegat, Monnier Valerie, Fabrice Morlet-Savary, Latifa Bousselmi, Jacques Lalevee
Summary: The study focused on the degradation of four pharmaceutical compounds classified as emerging pollutants, with the finding that Ciprofloxacin and Oxytetracycline could be completely removed from water through simple photolysis, while Ibuprofen required a photocatalyst for complete mineralization. The presence of a POM/polymer composite inhibited the degradation of Erythromycin, leading to the formation of more toxic intermediates than the original drug.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Haihui Yu, Bing Wei, Junping Wang, Haiqi Zhao, Sai Zeng, Chaobo Xue, Jiayu Zhu, Yanlin Zhang, Peng Xu
Summary: A novel type of photocatalyst SiW12/alpha-Fe2O3 was successfully synthesized, showing excellent photocatalytic performance and stability in the degradation of methylene blue (MB). The SiW12/3%alpha-Fe2O3 nanohybrid exhibited the best photocatalytic performance and is a potential efficient photocatalyst. The study systematically investigated the possible photocatalytic mechanism and the influence of chloride ions on the photocatalytic performance of the composites.
NEW JOURNAL OF CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Marta I. S. Verissimo, Dmitry V. Evtuguin, M. Teresa S. R. Gomes
Summary: Polyoxometalates (POMs) are versatile metal oxide complexes whose chemical and physical properties can be controlled by chemical modifications and counterions. POMs can be combined with various materials to enhance conductivity, catalytic activity, and surface area, making them valuable for sensor applications. This review provides an overview of POM structures and their functional features in sensors, and summarizes their applications in detecting analytes in different matrices.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Yesleen Gupta, Zakiullah Zaidi, Sakshi Mehta, Pranay R. Chandewar, Nikhil Kumar, Avijit K. Paul, Debaprasad Shee, Abhishake Mondal, Laxmi Gayatri Sorokhaibam, Abhishek Banerjee
Summary: A coordination polymer based on the sulphate-capped pentamolybdate unit has been synthesized and characterized. The compound exhibits nanoporous nature and shows excellent performance as a catalyst for oxidative desulphurization.
DALTON TRANSACTIONS
(2022)
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
Biochemistry & Molecular Biology
Yinghui Hu, Diping Huang, Jing Yan, Zhiliang Miao, Lize Yu, Ningjing Cai, Quanhai Fang, Qiuyu Zhang, Yi Yan
Summary: In this study, the [V6O13](2-) cluster was successfully immobilized onto the polymeric framework, forming a polyoxometalate-containing polyphosphazene. This structure not only supports the porous structure of the polymer framework but also improves the catalytic oxidation property. The immobilized polyoxometalate cluster exhibited high catalytic activity and good recyclability and stability.
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
Polymer Science
Jing Yan, Jianghao Yao, Yinghui Hu, Diping Huang, Dongdong Yao, Fangzhou Wu, Qiuyu Zhang, Yi Yan
Summary: By introducing functioned inorganic polyoxometalate clusters into a triblock copolymer system, the building block and function of metallopolymer system can be enriched. The multiple interactions between the POMs clusters and the triblock copolymers improve the selective oxidation activity of the catalyst and enable the recycling of the catalyst.
Review
Chemistry, Multidisciplinary
Chaoren Shen, Xiao-Feng Wu
CHEMISTRY-A EUROPEAN JOURNAL
(2017)
Editorial Material
Materials Science, Multidisciplinary
Haihong Wu, Chaoren Shen, Chungu Xia, Lin He
SCIENCE CHINA-MATERIALS
(2017)
Article
Chemistry, Physical
Xuehua Zhang, Xinxin Tian, Chaoren Shen, Chungu Xia, Lin He
Article
Chemistry, Physical
Yanwei Cao, Chaoren Shen, Jie Min, Lin He, Xinxin Tian
MOLECULAR CATALYSIS
(2020)
Article
Chemistry, Organic
Xinyi Ren, Chaoren Shen, Guangzhu Wang, Zhanglin Shi, Xinxin Tian, Kaiwu Dong
Summary: A method for reductive cyanation of tertiary alkyl bromides was developed, providing good to excellent yields of various alpha-cyano ketones, esters, and carboxamides containing a nitrile-bearing all-carbon quaternary center under mild reaction conditions. The corresponding reaction mechanism involving in situ generated organozinc reagent and reactivity distinction was elucidated by density functional theory computation.
Article
Chemistry, Organic
Xinyi Ren, Lin Tang, Chaoren Shen, Huimin Li, Peng Wang, Kaiwu Dong
Summary: A palladium-catalyzed asymmetric hydroesterification-cyclization method was developed for efficient preparation of enantioenriched gamma-lactams, with good selectivities and a broad substrate scope. The correlation between multiple selectivities and N-substitutes of the amide linker in the substrate was demonstrated through crystallographic evidence and control experiments.
Article
Chemistry, Multidisciplinary
Xinyi Ren, Zhen Wang, Chaoren Shen, Xinxin Tian, Lin Tang, Xiaolei Ji, Kaiwu Dong
Summary: A highly efficient method for asymmetric carbonylation reactions has been developed in this study, allowing for the synthesis of chiral molecules with high optical purity from beta-carbonyl functionalized alkenes. This method features mild reaction conditions and a broad substrate scope, and has the potential for further applications in catalytic asymmetric carbonylation reactions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Qiongyao Chen, Chaoren Shen, Gangli Zhu, Xuehua Zhang, Chun-Lin Lv, Bo Zeng, Sen Wang, Junfen Li, Weibin Fan, Lin He
Summary: This study reveals the role of LiCl in regulating the CO2 hydrogenation pathway with Shvo's complex, demonstrating their collaboration can selectively produce CO from CO2 and efficiently promote this conversion reaction.
Article
Chemistry, Organic
Zhengshuai Xu, Chaoren Shen, Hongru Zhang, Peng Wang, Kaiwu Dong
Summary: This research achieved the construction of chiral aza-quaternary carbon centers via C-N bond formation, providing chiral dihydroquinolinone derivatives with moderate to high yield and improved enantiomeric ratio. The use of a syringe pump to add o-iodoaniline was crucial in reducing side reactions and improving chemoselectivity. By utilizing the chirality induction of an assembled aza-quaternary stereogenic center, molecules with vicinal chiral quaternary carbon centers or multiple chiral centers can be rapidly prepared.
ORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
Zhengshuai Xu, Yitian Tang, Chaoren Shen, Hongru Zhang, Yuxin Gan, Xiaolei Ji, Xinxin Tian, Kaiwu Dong
CHEMICAL COMMUNICATIONS
(2020)
Article
Chemistry, Multidisciplinary
Xuehua Zhang, Chaoren Shen, Chungu Xia, Xinxin Tian, Lin He
Article
Chemistry, Multidisciplinary
Chaoren Shen, Cornel Fink, Gabor Laurenczy, Paul J. Dyson, Xiao-Feng Wu
CHEMICAL COMMUNICATIONS
(2017)
Article
Chemistry, Multidisciplinary
Chaoren Shen, Zhihong Wei, Haijun Jiao, Xiao-Feng Wu
CHEMISTRY-A EUROPEAN JOURNAL
(2017)
Article
Chemistry, Applied
Chaoren Shen, Anke Spannenberg, Matthias Auer, Xiao-Feng Wu
ADVANCED SYNTHESIS & CATALYSIS
(2017)