A5100766437- Tribology and Wear Analysis
- Lubricants and Their Additives
- Diamond and Carbon-based Materials Research
- Graphene research and applications
- Radical Photochemical Reactions
- Catalytic C–H Functionalization Methods
- Metal and Thin Film Mechanics
- Clay minerals and soil interactions
- GNSS positioning and interference
- Catalysis and Hydrodesulfurization Studies
- Inertial Sensor and Navigation
- 2D Materials and Applications
- Catalytic Processes in Materials Science
- Geophysics and Gravity Measurements
- Mechanical Behavior of Composites
- Nanomaterials for catalytic reactions
- Supercapacitor Materials and Fabrication
- Polymer Nanocomposites and Properties
- Layered Double Hydroxides Synthesis and Applications
- Atmospheric chemistry and aerosols
- Sulfur-Based Synthesis Techniques
- Mesoporous Materials and Catalysis
- Radio Wave Propagation Studies
- Boron and Carbon Nanomaterials Research
- Dendrimers and Hyperbranched Polymers
Technical Institute of Physics and Chemistry
2017-2025
Chinese Academy of Sciences
2018-2025
University of Chinese Academy of Sciences
2017-2025
Jiangsu University of Science and Technology
2020-2025
Yangzhou University
2014-2024
Zhejiang Meteorological Bureau
2023-2024
Southwest Jiaotong University
2016-2024
State Key Laboratory of Transducer Technology
2023
Changchun University of Technology
2023
Beijing Municipal Ecological and Environmental Monitoring Center
2023
Transition-metal-catalyzed C–N bond-forming reactions have emerged as fundamental and powerful tools to construct arylamines, a common structure found in drug agents, natural products, fine chemicals. Reported herein is an alternative access heteroarylamine via radical–radical cross-coupling pathway, powered by visible light catalysis without any aid of external oxidant reductant. Only irradiation photocatalyst, such metal-free does the cascade single-electron transfer event for amines...
As one of the most ubiquitous bulk reagents available, intrinsic chemical inertness tetrahydrofuran (THF) makes direct and site-selective C(sp3 )-H bond activation difficult, especially under redox neutral condition. Here, we demonstrate that semiconductor quantum dots (QDs) can activate α-C-H THF via forming QDs/THF conjugates. Under visible light irradiation, resultant alkoxyalkyl radical directly engages in cross-coupling with α-amino from amino C-H bonds or addition alkene...
Cross-coupling acylation by direct aldehyde activation is ideal to construct a useful carbonyl motif. However, the strong C–H bond energy, short radical lifetime, and mismatched polarity render this reaction huge challenge. Herein, semiconductor quantum dots (QDs) interface demonstrated overcome obstacles lying on way acylating alkene or alkylarene, directly activating formyl into an acyl radical. Further stabilization of obtained species QD ensured their effective cross-coupling with...
Cu(II) salts can activate C–H bonds of aromatic amines or imines to construct C–C in air without external photosensitizer.
In this paper, the PVA/HNTs composite nanofibers with well-enhanced mechanical properties were successfully prepared by electrospinning technique. The structure and of characterized TEM, XRD, FT-IR, DSC. results indicated that highly oriented dispersed HNTs wrapped in polymer matrix achieved inducing function during processing. depended on content investigated, which showed 72.4% increase tensile strength at optimal filling content. Copyright © 2016 John Wiley & Sons, Ltd.
The challenges of graphene as a high-performance additive applied in lubricant are its dispersibility and transparency. Herein, oleic diethanolamide borate (ODAB)-grafted oxide nanosheets (GO) with good oil were successfully achieved. structure analysis the as-prepared ODAB-grafted GO (MGO) verified that molecular ODAB has bonded active groups surface, determined by characterizations. In addition, tribological properties MGO evaluated friction-testing machine, morphologies worn surfaces...
A unified strategy for the synthesis of 2-vinyl heterocycles is reported. With visible light irradiation, simple and cheap CuCl able to functionalize a terminal alkyne, giving Cu(I)-acetylide in situ. Unlike case noble metals or organic dye photocatalysts, this critical not only activates C-H bond alkynes but also serves as photocatalyst achieve varieties good excellent yields, even large scale late-stage functionalization natural product.
Abstract The activation of the α‐C−H bond ketones typically requires an amine and a directing group to guide reaction selectivity in amine‐catalysis carbonyl chemistry. For ketone, groups are also required control selectivity. Reported herein is first α‐alkylation cyclic absence catalyst group. 1 H NMR, XPS, EPR studies DFT calculations indicate that α‐carbon radical intermediate formed through direct selective inert chelating on surface colloidal quantum dots (QDs). Such interaction...