Article
Chemistry, Multidisciplinary
Zelong Wang, Silin Chen, Chao Chen, Yunhui Yang, Congyang Wang
Summary: Earth-abundant transition metal catalysis has been developed as a viable substitute for noble transition metal catalysis in hydrogenation reactions. However, the hydrogenation of thioamides using earth-abundant transition metals has not been reported due to catalyst poisoning by sulfur-containing molecules. In this study, we successfully achieved manganese-catalyzed hydrogenative desulfurization of thioamides to amines or imines by employing MnBr(CO)(5) instead of commonly-used pincer-manganese catalysts, along with NEt3 and CuBr. This reaction demonstrated excellent selectivity in breaking the C=S bond of thioamides, unlike the only known Ru-catalyzed hydrogenation of thioamides, and it exhibited unprecedented chemo-selectivity towards vulnerable functional groups.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Chemical
Wen Qin, Peiyan Tan, Yang Song, Zhihong Wang, Jinxu Nie, Jun Ma
Summary: This study utilized colorimetric methods to determine manganese(III)-pyrophosphate complex at trace levels, and developed an ozonation method to measure dissolved Mn concentrations. Different compounds such as oxalic acid, EDTA, humic acid, and desferrioxamine B were found to have varying effects on the oxidation of bisphenol A and hydroquinone by Mn compounds. Additionally, a Mn(VII)-reducer-PP system showed potential for the transformation of phenolic compounds in polluted water treatment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Yangzhong Qin, Rui Sun, Nikolas P. Gianoulis, Daniel G. Nocera
Summary: The researchers conducted a comprehensive mechanistic study of photoredox nickel-catalyzed C-S cross-coupling, revealing a self-sustained productive Ni(I/III) cycle, the role of in situ formed pyridinium iodide as a dominant quencher, and critical intermediates in the reaction pathway. These mechanistic insights not only provided a complete reaction cycle but also allowed for optimization of reaction efficiency and broadening the substrate scope.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Organic
Dongyue Wei, Peng Yang, Chuanman Yu, Fengkai Zhao, Yilei Wang, Zhihua Peng
Summary: A manganese-catalyzed N-alkylation reaction has been demonstrated, providing access to diverse secondary amines in moderate-to-high yields. The catalytic system is practical, scalable, and suitable for synthesizing heterocycles with potential activity against Alzheimer's disease.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Tjark H. Meyer, Ramesh C. Samanta, Antonio Del Vecchio, Lutz Ackermann
Summary: The electro-catalyzed azidation of inert C(sp(3))-H bonds used sodium azide as the nitrogen source, with mild reaction conditions and no directing group. The mechanism involved aliphatic radical formation and azidyl radical transfer within a manganese(iii/iv) manifold.
Article
Engineering, Chemical
Jiaxin Tian, Zifei Yan, Jian Deng, Guangsheng Luo
Summary: A novel homogeneous oxidation method utilizing hydrogen peroxide catalyzed by phosphotungstic acid has been developed for the synthesis of high-quality 2,2'-dibenzothiazole disulfide (MBTS). This method improves reaction efficiency and product quality, solves organic wastewater treatment issues, achieves high purity product synthesis, and successfully recycles the mother liquor containing catalyst.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Engineering, Environmental
Kyle J. Angle, Erin E. Neal, Vicki H. Grassian
Summary: The oxidation of S(IV) in aqueous aerosols is accelerated compared to bulk solutions, with an enhancement in rates due to surface effects and potential aerosol pH gradients. This finding helps to explain the higher sulfate concentrations observed in the atmosphere and shows that inorganic oxidation processes can be accelerated in micron-sized aqueous droplets.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Trilok Neupane, Lydia R. Chambers, Alexander J. Godfrey, Melina M. Monlux, Evan J. Jacobs, Sophia Whitworth, Jamie E. Spawn, Seo Hee K. Clingman, Kathleen L. Vergunst, Fair M. Niven, James J. Townley, Iris W. Orion, Carly R. Goodspeed, Kathryn A. Cooper, Jeff D. Cronk, Jennifer N. Shepherd, David N. Langelaan
Summary: The RquA protein is responsible for synthesizing rhodoquinone, and it converts ubiquinone to rhodoquinone through an atypical amino transfer mechanism, instead of the canonical methyl transfer mechanism.
COMMUNICATIONS CHEMISTRY
(2022)
Article
Chemistry, Organic
Yu-Tong Duan, Zhong-Xia Wang
Summary: The ruthenium-catalyzed reaction of aryl methyl thioethers with vinylaziridines provides ortho-position mono- or bis-allylation products, depending on the substituents on the phenyl rings of sulfide substrates or the ratio of reactants. This reaction exhibits mild conditions, high product yields, a broad range of substrates, good compatibility of functional groups, and selective formation of E-configurated C-C double bonds.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yang Chen, Qi Tian, Yongsheng Tian, Jiawei Cui, Guanghui Wang
Summary: A nickel-silver oxide supported molybdenum catalyst with mesoporous silica was prepared and used for desulfurization of dibenzothiophene, benzothiophene, and 4,6-dimethyldibenzothiophene in a hydrogen peroxide system. The catalyst showed excellent oxidation desulfurization performance, with the reaction products being DBTO2, BTO2, and 4,6-DMDBTO2. Recycling experiments demonstrated high removal efficiency even after five cycles, indicating promising potential for practical applications.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Jared C. Paris, Sha Hu, Aiwen Wen, Andrew C. Weitz, Ronghai Cheng, Leland B. Gee, Yijie Tang, Hyomin Kim, Arturo Vegas, Wei-chen Chang, Sean J. Elliott, Pinghua Liu, Yisong Guo
Summary: This study reports the first observation of a spin iron(IV) species in non-heme iron enzymes, which enables the formation of C-S bond catalyzed by OvoA in Methyloversatilis thermotolerans. This finding paves the way for understanding the mechanism of enzymatic oxidative C-S bond formation in the OSHA biosynthesis pathway.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
J. Magdalena Santana-Casiano, David Gonzalez-Santana, Quentin Devresse, Helmke Hepach, Carolina Santana-Gonzalez, Birgit Quack, Anja Engel, Melchor Gonzalez-Davila
Summary: The study investigated the iron(II) oxidation kinetic process in coastal seawater of the Macaronesia region, revealing deviations between measured and calculated values under different environmental conditions, largely attributed to the characteristics of organic matter.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Mutlu Canpolat, Yalcin Altunkaynak
Summary: This study explores the application of processed orange peel waste (POP) as an effective solution for removing Mn(II) and Co(II) ions from water. The optimal conditions for removing these ions were determined, and the adsorption capacities of POP at different temperatures were evaluated. Thermodynamic investigations confirmed the nature of the adsorption process. Thus, POP is an efficient and environmentally friendly material for water purification and environmental remediation.
Article
Chemistry, Multidisciplinary
Jianguo Liu, Heng Song, Tianlin Wang, Jiong Jia, Qing-Xiao Tong, Chen-Ho Tung, Wenguang Wang
Summary: A novel iron coordination system has been reported for controlling the hydrostannation of alkynes, demonstrating excellent regioselectivity and broad functional group compatibility. The activation of tin hydride or alkyne substrate conveniently controls the initial step of the catalysis, leading to diverse vinylstannanes synthesis.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Biochemistry & Molecular Biology
Michal Rivlin, Gil Navon
Summary: This study investigated the anomeric equilibrium and mutarotation rate constants of Glucosamine using high resolution NMR spectroscopy. The results showed that the mutarotation rate constant of Glucosamine increased with concentration and was pH-dependent. The findings have implications for the design of experimental settings for cancer detection using Glucosamine-CEST MRI.
CARBOHYDRATE RESEARCH
(2022)
Article
Chemistry, Applied
Zhiwei Su, Xiangnan Liu, Shaoyun Hao, Zhongjian Li, Bin Yang, Yang Hou, Lecheng Lei, Xingwang Zhang
Summary: The study synthesized Pt/CoFe2O4-C catalyst with high ORR and OER performance for ZAB, approaching Pt/C and IrO2. Testing results showed excellent voltage performance of Pt/CoFe2O4-C in homemade ZAB.
Article
Chemistry, Physical
Han Wang, Jincheng Si, Tianyu Zhang, Yan Li, Bin Yang, Zhongjian Li, Jian Chen, Zhenhai Wen, Chirs Yuan, Lecheng Lei, Yang Hou
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Engineering, Environmental
Jiani Yao, Ying Huang, Yang Hou, Bin Yang, Lecheng Lei, Xianjin Tang, Kirk G. Scheckel, Zhongjian Li, Di Wu, Dionysios D. Dionysiou
Summary: The study showed that the three-dimensional graphite foam formed by liquid nitrogen treatment of graphite paper can enhance the reduction efficiency of Cr(VI) in MFCs, attributed to the porous structures, edges, and O-doped defects on the surface providing more active sites and inhibiting OH- diffusion, leading to a high local pH.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Kaifeng Gu, Sichen Pang, BinBin Yang, Yanli Ji, Yong Zhou, Congjie Gao
JOURNAL OF MEMBRANE SCIENCE
(2020)
Article
Chemistry, Applied
Zhendong Li, Li Cheng, Ke Zhang, Zhenhua Wang
Summary: Y doping improves the photocatalytic performance of BiFeO3, with Bi0.95Y0.05FeO3 showing the best activity due to its smaller particle size and lower rate of recombination of photogenerated electron-hole pairs.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Han Wang, Zhongjian Li, Yan Li, Bin Yang, Jian Chen, Lecheng Lei, Shaobin Wang, Yang Hou
Summary: A porous exfoliated FePS3 nanosheet with rich sulfur vacancy (Vs-FePS3 NSs) synthesized by electrochemical exfoliation and hydrogenation treatment shows excellent activity in electrochemical NRR. The Fe species are identified as the real active sites, and S vacancies play a role in enhancing the NRR process. Vs-FePS3 NSs can also serve as the cathode of a Zn-N-2 battery with a power density of 2.6 mW cm(-2).
Article
Engineering, Chemical
Zipeng Ye, Youzhi Li, Nannan Zhao, Bin Yang, Yang Hou, Lecheng Lei, Zhongjian Li
Summary: A Fe(CN)(6)(3-)/Fe(CN)(6)(4-) redox-medium-assisted bioanode-driven CO2ER system has been developed, with a high energy efficiency of 135% and a CO2 to CO Faradic efficiency of 82% achieved. This system has the potential to recover energy from wastewater and valorize CO2 emissions, transforming traditional wastewater treatment into a sustainable, carbon-neutral process that produces chemicals.
Article
Chemistry, Multidisciplinary
Shuomeng Zhang, Lei Wang, Liang Wu, Zhongjian Li, Bin Yang, Yang Hou, Lecheng Lei, Shaoan Cheng, Qinggang He
Summary: The study investigates the adhesion behavior of electroactive bacteria under various metabolic conditions using an integrated electrochemical single-cell force microscopy system. It establishes a nonlinear model between bacterial adhesion force and electric field intensity, and demonstrates how the EET processes impact the conformation and unfolding events of outer membrane appendages. The research reveals how the anisotropy of bacterial conductive structure translates into desired adhesion behavior in different scenarios.
Article
Chemistry, Multidisciplinary
Fan He, Yingjie Zhao, Xiaoxuan Yang, Sixing Zheng, Bin Yang, Zhongjian Li, Yongbo Kuang, Qinghua Zhang, Lecheng Lei, Ming Qiu, Liming Dai, Yang Hou
Summary: A bifunctional microreactor catalyst (CoBDC FcCA) composed of two species of Co active sites and ligand FcCA has been developed for efficient OER performance and accelerated reaction kinetics, enabling solar-driven oxygen production from water splitting.
Article
Engineering, Environmental
Huiyang Bi, Chunhui Deng, Lihao Chen, Xuesong Zhao, Zhongjian Li, Yang Hou, Lecheng Lei, Bin Yang
Summary: Replacing coal with industrial organic waste in high temperature gasification to produce syngas is a viable method to reduce carbon emissions. This study developed novel numerical models to simulate the formation and control of HCl in Texaco gasifier, taking chlorine-containing substances as dichloromethane for mass transfer description during gasification. The models showed good accuracy with a minimum error of 0.55% in predicting syngas components. The simulation revealed that HCl was mainly generated near the nozzle, and increasing CaO amount and decreasing particle size had a positive effect on dechlorination. However, excessively reducing CaO size below 0.1 mm decreased its promoting effect, and high temperature in the flame zone inhibited the dechlorination reaction. Therefore, the developed models provided feasibility for optimizing operating conditions and reducing chlorine corrosion and improving stability during the gasification of organic hazardous waste.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Engineering, Chemical
Xuesong Zhao, Yinhai Yang, Qi Chen, Yingna Jia, Jingjin Song, Zhongjian Li, Yang Hou, Lecheng Lei, Bin Yang
Summary: A novel horizontal continuous-flow dielectric barrier discharge (DBD) system without catalyst was developed for effective degradation of diclofenac in water. The degradation efficiency reached 90% in 14 minutes, with an energy efficiency of 0.181 g/kWh. LC-MS analysis helped identify the intermediates and propose a possible degradation pathway. Thus, the DBD reactor shows great potential for pharmaceutical wastewater treatment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Mathematics, Applied
Bin Dong, Zuowei Shen, Jianbin Yang
Summary: This paper explores the approximation of functions from noisy and nonsmooth observed data, with a focus on sparse noise removal schemes. Theoretical analysis is presented, highlighting the importance of sparsity-based denoising for effective approximation. A new approximation scheme is proposed for large datasets to significantly reduce noise level and ensure asymptotic convergence.
SIAM JOURNAL ON NUMERICAL ANALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Fanpeng Cheng, Zhongjian Li, Lin Wang, Bin Yang, Jianguo Lu, Lecheng Lei, Tianyi Ma, Yang Hou
Summary: The Ce-NiBDC/OG exhibited a low overpotential for the OER, with in situ spectroscopy and operando microscopy revealing the phase transformation behavior to Ce-doped NiOOH as the active site. Ce species doping in NiOOH was found to significantly enhance *OH adsorption and reduce the energy barriers for the rate-determining step (*OH -> *O) in the Ce-NiBDC/OG-derived catalyst.
MATERIALS HORIZONS
(2021)
Review
Nanoscience & Nanotechnology
Jun Ke, Fan He, Hui Wu, Siliu Lyu, Jie Liu, Bin Yang, Zhongjian Li, Qinghua Zhang, Jian Chen, Lecheng Lei, Yang Hou, Kostya Ostrikov
Summary: This study critically examines various 2D layered photoelectrode materials, discusses the correlations between the intrinsic structural properties and functions of the photoelectrodes, and analyzes strategies for assembling integrated photoelectrodes using advanced nanocarbons as co-catalysts to enhance PEC water splitting performances.
NANO-MICRO LETTERS
(2021)
