An Zhao

ORCID: 0000-0002-0243-7084
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About
Contact & Profiles
Research Areas
  • Catalytic C–H Functionalization Methods
  • Chemical Synthesis and Reactions
  • Oxidative Organic Chemistry Reactions
  • Synthesis and Catalytic Reactions
  • Sulfur-Based Synthesis Techniques
  • Asymmetric Hydrogenation and Catalysis
  • Advanced Sensor and Energy Harvesting Materials
  • Carbon dioxide utilization in catalysis
  • Luminescence and Fluorescent Materials
  • Radical Photochemical Reactions
  • Cardiac and Coronary Surgery Techniques
  • Machine Fault Diagnosis Techniques
  • Superconducting and THz Device Technology
  • Muscle activation and electromyography studies
  • Cultural Heritage Materials Analysis
  • Electrocatalysts for Energy Conversion
  • Synthesis and Properties of Aromatic Compounds
  • Induction Heating and Inverter Technology
  • Photochemistry and Electron Transfer Studies
  • Electric Motor Design and Analysis
  • Radio Frequency Integrated Circuit Design
  • Building materials and conservation
  • Modular Robots and Swarm Intelligence
  • Fuel Cells and Related Materials
  • Advanced Materials and Mechanics

Cultural Relics Institute Hebei Province
2024

Shanghai Pulmonary Hospital
2023

Tongji University
2023

Taiyuan University of Technology
2023

State Key Laboratory of Supramolecular Structure and Materials
2022

Jilin University
2022

Lanzhou University
2020

University of Illinois Urbana-Champaign
2016

Hunan University
2013-2016

Changsha University
2015

Capabilities for assembly of three-dimensional (3D) micro/nanostructures in advanced materials have important implications across a broad range application areas, reaching nearly every class microsystem technology. Approaches that rely on the controlled, compressive buckling 2D precursors are promising because their demonstrated compatibility with most sophisticated planar technologies, where include inorganic semiconductors, polymers, metals, and various heterogeneous combinations, spanning...

10.1126/sciadv.1601014 article EN cc-by-nc Science Advances 2016-09-02

A transition-metal-free direct α-C-H amination of ketones has been developed using commercially available ammonium iodide as the catalyst and sodium percarbonate co-oxidant. wide range ketone ((hetero)aromatic or nonaromatic ketones) amine (primary/secondary amines, anilines, amides) substrates undergo cross-coupling to generate synthetically useful α-amino ketones. The mechanistic studies indicated that a radical pathway might be involved in reaction process. utility method is highlighted...

10.1021/jo5015855 article EN The Journal of Organic Chemistry 2014-08-25

A copper-catalyzed aerobic decarboxylative sulfonylation of alkenyl carboxylic acids with sodium sulfinates is developed. This study offers a new and expedient strategy for stereoselective synthesis (E)-alkenyl sulfones that are widely present in biologically active natural products therapeutic agents. Moreover, the transformation proposed to proceed via radical process exhibits broad substrate scope good functional group tolerance.

10.1021/jo5010845 article EN The Journal of Organic Chemistry 2014-07-15

The first Fe-facilitated decarboxylative cross-coupling reaction between α-oxocarboxylic acids and acrylic in aqueous solution has been developed. This transformation is characterized by its wide substrate scope good functional group compatibility utilizing inexpensive easily accessible reagents, thus providing an efficient expeditious approach to important class of α,β-unsaturated carbonyls frequently found bioactive compounds. synthetic potential the coupled products also demonstrated...

10.1021/acs.joc.5b00267 article EN The Journal of Organic Chemistry 2015-03-10

Rechargeable alkaline zinc air batteries (ZABs) are promising candidates for energy storage and conversion. However, the uncontrolled growth of dendrites in environments seriously affects their cycling stability and...

10.1039/d5ta01247c article EN Journal of Materials Chemistry A 2025-01-01

The copper-catalyzed conversion of the CO bond ketones to a CN is described using ammonium salts as nitrogen source in presence molecular oxygen.

10.1039/c5cc02578h article EN Chemical Communications 2015-01-01

Unbalanced data with very few samples for special abnormal conditions frequently occur in actual production processes, which can make accurate monitoring of the process state challenging.This paper proposes a multi-modal few-shot learning method (MMFSL) within fault diagnosis framework unbalanced modelling industrial bearings.MMFSL handle two modes and therefore contains generation channels.The first channel deals time series second images.The generated are then evaluated using MMFSL...

10.1109/tim.2023.3289549 article EN IEEE Transactions on Instrumentation and Measurement 2023-01-01

A copper-catalyzed O-methylation of carboxylic acids using dimethyl sulfoxide (DMSO) as the methyl source is disclosed. This transformation exhibits a broad substrate scope and excellent functional group tolerance. Mechanistic studies indicate that radical generated from in reaction process.

10.1055/s-0035-1560967 article EN Synthesis 2015-11-19

ABSTRACT In this paper, 23 multi‐aryl imidazole derivatives were synthesized and identified by nuclear magnetic resonance, ultraviolet‐visible elemental analysis. At the same time, their maximum absorption (λ ab max ), fluorescence emission em ) quantum yields (Ф f measured. The relationships between optical behaviors structures for these compounds assessed. results show that λ are red‐shifted Ф increased introduction of electron‐withdrawing substituents increase in planarity molecules. also...

10.1002/bio.2580 article EN Luminescence 2013-10-14

Polyoxometalates (POMs) exhibit excellent properties in many aspects; addition to their unique geometry and electronic structures, POMs have shown outstanding catalysis, as well magnetic redox properties. In contrast, a new type of polyacid system, aspects titanium oxide clusters (TOCs) still remain unexplored. By introducing fluorine‐substituted salicylic acid ligand into the TOCs we synthesized [Ti 7 (µ 3 ‐O) 4 (LF) ( i PrO) 12 ] · 2(CH CN) 1 ; LF = 3‐fluorosalicylic acid) with an...

10.1002/ejic.202000715 article EN European Journal of Inorganic Chemistry 2020-11-09

10.1109/cieec60922.2024.10583369 article EN 2022 IEEE 5th International Electrical and Energy Conference (CIEEC) 2024-05-10

Abstract As the royal Taoist buildings of Ming dynasty (1368–1644 CE), Huilongguan temple site Wudang Mountain represents highest level art and architecture that era. Thanks at least in part to quality durability building mortar materials, are still well preserved after 500 years erosion by wind rain. The present study conducted muti‐analytical techniques explore characterization eight mortars from site. results indicate material formulae these construction phases I–IV were all sticky rice...

10.1111/arcm.13033 article EN Archaeometry 2024-10-10

Abstract A wide range of aryl/alkylacetic acid methyl esters is environmentally friendly prepared using DMSO as convenient donor and solvent hydrogen peroxide oxidant.

10.1002/chin.201624055 article EN ChemInform 2016-05-01
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