Hai‐Jian Yang

ORCID: 0000-0001-9644-6207
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Research Areas
  • Carbon dioxide utilization in catalysis
  • Phase Equilibria and Thermodynamics
  • Asymmetric Hydrogenation and Catalysis
  • Organometallic Complex Synthesis and Catalysis
  • Catalysis and Oxidation Reactions
  • Ionic liquids properties and applications
  • CO2 Reduction Techniques and Catalysts
  • Chemical Thermodynamics and Molecular Structure
  • Asymmetric Synthesis and Catalysis
  • X-ray Diffraction in Crystallography
  • Catalytic C–H Functionalization Methods
  • Synthetic Organic Chemistry Methods
  • Chemical Synthesis and Reactions
  • Crystallization and Solubility Studies
  • biodegradable polymer synthesis and properties
  • Advanced Photocatalysis Techniques
  • Adsorption, diffusion, and thermodynamic properties of materials
  • Catalytic Processes in Materials Science
  • Crystallography and molecular interactions
  • Catalysis for Biomass Conversion
  • Copper-based nanomaterials and applications
  • Metal-Organic Frameworks: Synthesis and Applications
  • Transition Metal Oxide Nanomaterials
  • Plant Molecular Biology Research
  • Radioactive element chemistry and processing

Chongqing Academy of Agricultural Sciences
2023-2025

Minzu University of China
2022-2024

Huanghe Science and Technology College
2023-2024

Zhejiang University
2023

South Central Minzu University
2012-2021

East China Normal University
2019-2020

State Ethnic Affairs Commission
2010-2020

Materials Science & Engineering
2019

Jiangsu University
2016

Changzhou University
2015

Nanoplates of MgO possessing the polar (111) facet as primary surface were studied adsorbents for dye pollutants removal from wastewater. The thickness MgO(111) nanoplates is (3 to 5) nm, with an average specific area (SSA) 198 m2·g−1. Congo red and reactive brilliant X3B are used model azo dyes, their adsorption at different concentrations, solution pH, salt concentration, temperatures in a batch reactor. experimental results indicate that surfaces exhibited much more favorable properties...

10.1021/je100274e article EN Journal of Chemical & Engineering Data 2010-07-16

A series of neutral salicylaldiminato Ni(II) complexes have been synthesized and characterized, a e confirmed by X-ray single-crystal analyses. These compounds show highly catalytic activities for the vinyl polymerization norbornene with MAO cocatalyst, which could be up to 2.86 × 108 g PNB/(mol Ni·h), also lead various activities, molecular weights, distributions polynorbornenes under different reaction conditions.

10.1021/om030018t article EN Organometallics 2003-07-18

Semiconductor single crystalline NiO nanosheets with well-defined hexagonal holes having the appearance of a nanometer-scale spanner are prepared via an efficient wet chemical route. The main surfaces (111) facets and sizes both sheets can be controlled. NiO(111) showed unusual activity for low temperature methanol decomposition. Supporting information this article is available on WWW under http://www.wiley-vch.de/contents/jc_2089/2008/c1389_s.pdf or from author. Please note: publisher not...

10.1002/adma.200701389 article EN Advanced Materials 2007-12-20

Herein, we report a highly diastereo- and enantioselective allylic alkylation of oxazolones with 1,3-dienes by palladium-hydride catalyst under base-free conditions. With DTBM-SEGPHOS as the chiral ligand, series enantioenriched bearing tertiary carbon centers were synthesized from substituted via exclusive 1,2-addition moderate to good diastereoselectivities high enantioselectivities. When simple 1,3-butadiene was used allyl precursor this catalytic system, 1,4-addition products obtained in...

10.1039/d0cc00265h article EN Chemical Communications 2020-01-01

Abstract Citrus fruits are one of the most important in world, and their seedless character is favored by consumers. WRKY a plant‐specific transcription factor family involved all aspects plant growth development. However, molecular mechanism fruit formation citrus role gene seed abortion still poorly understood. In this study, we identified 47 genes reticulata comprehensively characterized through structure evolutionary relationships. The expression patterns protein interaction networks...

10.1111/ppl.70048 article EN Physiologia Plantarum 2025-01-01

The novel chloro(1-naphthyl)[8-(diphenylphosphino)quinoline]nickel(II) (1), chloro(1-naphthyl)[2-methyl-8-(diphenylphosphino)quinoline]nickel(II) (2), and [2-methyl-8-(diphenylphosphino)quinoline]nickel(II) dichloride (3) complexes were synthesized in satisfactory yield fully characterized. structures of 1 3 determined by single crystal X-ray analysis, which indicated that complex exists a square planar configuration, while is dimeric pyramidal. In the presence MAO cocatalyst, 1–3 displayed...

10.1039/b203738f article EN New Journal of Chemistry 2002-09-16

Abstract Uniform bismuth nanospheres were successfully prepared from nitrate in the presence of poly( N -vinyl-2-pyrrolidone) (PVP) by solvothermal process. The product was characterized powder X-ray diffraction, scanning electron microscopy, transmission selected area and energy-dispersive X-ray. PVP plays a critical role both as reducing agent capping formation nanospheres. Shape size could be tuned changing employed PVP/bismuth salt ratio. It also found solvent had an effect on...

10.1186/1556-276x-6-66 article EN cc-by Nanoscale Research Letters 2011-01-12

Fe-based MIL-101(Fe) MOFshavea high potential to capture CO2 due their porosity, porous structure,and significant interaction with CO2, but the photogenerated electron and hole recombination phenomenon is relatively obvious. Copper tetracarboxyphenyl porphyrin (Cu-TCPP) was incorporated into as a photosensitive material forma heterostructure. This enhanced light absorption capability electron-hole pairs separation in composite catalyst. Based on above factors, current study reported...

10.1016/j.arabjc.2024.105722 article EN cc-by-nc-nd Arabian Journal of Chemistry 2024-03-08

We report a nickel/NHC-catalyzed branched-selective α-crotylation of simple ketones using 1,3-butadiene as the alkylation agent. This reaction is regioselective and operated under pH redox-neutral conditions. Water was used sole additive, which significantly accelerates transformation.

10.1021/acscatal.0c00019 article EN ACS Catalysis 2020-03-16

Halogen has a significant effect on the photocatalytic performance of bismuth chalcohalide (Bi19X3S27, X = Cl, Br), which is class unique material that holds bright future and used in hydrogen energy evolution. To systematically research influence halogen, evolution Bi19X3S27, not been identified yet, was studied this work rigorously. The Bi19Br3S27 sample prepared at 200 °C possessed optimal crystallinity rate 466.7 μmol g–1 h–1, higher than samples other temperatures. It worth mentioning...

10.1021/acs.iecr.9b05148 article EN Industrial & Engineering Chemistry Research 2019-11-20

Abstract A rhodium‐catalyzed formal [4+1]‐cycloaddition of pyridotriazoles and aryl propargyl alcohols is reported, providing an effective access to 2‐pyridyl‐substituted 2,5‐dihydrofuran derivatives in moderate high yields. Mechanistically, the proposed oxonium ylide intermediate this catalytic alkyne carbocyclization transformation verified by interception experiment for first time. magnified image

10.1002/adsc.201801497 article EN Advanced Synthesis & Catalysis 2019-01-05
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