Kai Li

ORCID: 0000-0002-5869-1006
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Advanced Photocatalysis Techniques
  • Organic Light-Emitting Diodes Research
  • Luminescence and Fluorescent Materials
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Organic Electronics and Photovoltaics
  • Gas Sensing Nanomaterials and Sensors
  • CO2 Reduction Techniques and Catalysts
  • Perovskite Materials and Applications
  • Catalytic Cross-Coupling Reactions
  • Electrocatalysts for Energy Conversion
  • Catalytic Processes in Materials Science
  • TiO2 Photocatalysis and Solar Cells
  • N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
  • Nanocluster Synthesis and Applications
  • Covalent Organic Framework Applications
  • Advanced Nanomaterials in Catalysis
  • Lanthanide and Transition Metal Complexes
  • Copper-based nanomaterials and applications
  • Ga2O3 and related materials
  • Advanced battery technologies research
  • Conducting polymers and applications
  • Molecular Sensors and Ion Detection
  • Quantum Dots Synthesis And Properties
  • Analytical Chemistry and Sensors

Shandong University
2022-2025

South China University of Technology
2025

Zhengzhou University
2019-2025

Shenzhen University
2019-2024

Xidian University
2024

Changchun Institute of Applied Chemistry
2015-2024

Chinese Academy of Sciences
2015-2024

Sichuan University
2023-2024

Jiangsu University
2018-2024

Materials Science & Engineering
2019-2024

A simple one-step calcination route was used to prepare Ti3+ self-doped TiO2/g-C3N4 heterojunctions by mixture of H2Ti3O7 and melamine. X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution (HRTEM), photoelectron spectroscopy (XPS), spin resonance (ESR) spectroscopy, UV–Vis diffuse reflectance (UV–vis DRS) technologies were characterize the structure, crystallinity, morphology, chemical state as-prepared samples. The absorption prepared shifted a longer wavelength...

10.1021/am508505n article EN ACS Applied Materials & Interfaces 2015-04-13

Photocatalytic hydrogen evolution from pure water is successfully realized by using interstitial P-doped CdS with rich S vacancies (CdS-P) as the photocatalyst in absence of any electron sacrificial agents. Through P doping, impurity level located near Fermi and becomes an effective trap CdS-P, which can change dynamic properties photogenerated electrons thus prolong their lifetimes. The long-lived are able to reach surface active sites initiate efficient photocatalytic redox reaction....

10.1002/adma.201705941 article EN Advanced Materials 2017-12-27

The structural effects of ligands on the emission properties Pt(<sc>ii</sc>) complexes and promising applications luminescent in various areas are discussed.

10.1039/c5sc03766b article EN cc-by-nc Chemical Science 2016-01-01

To improve the utilization of visible light and reduce photogenerated electron/hole recombination, Ti3+ self-doped TiO2/oxygen-doped graphitic carbon nitride (Ti3+-TiO2/O-g-C3N4) heterojunctions were prepared via hydrothermal treatment a mixture g-C3N4 titanium oxohydride sol obtained from reaction TiH2 with H2O2. In this way, exfoliated O-g-C3N4 Ti3+-TiO2 nanoparticles obtained. Simultaneously, strong bonding was formed between during process. Charge transfer recombination processes...

10.1021/acsami.6b16191 article EN ACS Applied Materials & Interfaces 2017-03-07

Abstract Intramolecular through‐space charge‐transfer (TSCT) excited states have been exploited for developing thermally activated delayed fluorescence (TADF) emitters, but the tuning of state dynamics by conformational engineering remains sparse. Designed here is a series TSCT emitters with precisely controlled alignment donor and acceptor segments. With increasing intramolecular π–π interactions, radiative decay rate lowest singlet (S 1 ) progressively increased together suppression...

10.1002/anie.202013051 article EN Angewandte Chemie International Edition 2020-11-11

Abstract 2D amorphous transition metal oxides (a‐TMOs) heterojunctions that have the synergistic effects of interface (efficiently promoting separation electron−hole pairs) and nature (abundant defects dangling bonds) attracted substantial interest as compelling photocatalysts for solar energy conversion. Strategies to facilely construct a‐TMOs‐based 2D/2D is still a big challenge due difficulty preparing individual counterparts. A generalized synthesis strategy based on supramolecular...

10.1002/adfm.202009230 article EN Advanced Functional Materials 2020-12-27

Abstract Diboron‐based multi‐resonance (MR) molecules featuring para ‐B‐π‐B configuration represent a highly promising class of emitters for red and near‐infrared organic light‐emitting diodes (OLEDs). The emission spectra the diboron‐based MR can be fine‐tuned by modulating carbazole/phenol resonant partners. However, beyond spectral tuning, comprehensive understanding intricate relationship between molecular structure, overall properties remains elusive. In this work, through meticulous...

10.1002/adfm.202316323 article EN Advanced Functional Materials 2024-03-10

It's a flat world: Charge-neutral pincer-type cyclometalated platinum(II) aryl acetylides can be assembled into quasi-two-dimensional nanosheets through bilateral intermolecular noncovalent interactions (see picture). These further self-organized layered materials on substrate and exhibit NIR phosphorescence light-modulated conductivity. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents peer-reviewed, but not copy-edited or typeset....

10.1002/anie.200905678 article EN Angewandte Chemie International Edition 2009-11-20

The synthesis, structures and photophysical properties of the charge-neutral Pt(II) complexes (1–6) their Pd(II) (7) Ni(II) (8) congeners supported by tetradentate dianionic bis[phenolate-(N-heterocyclic carbene)] ligands are described. X-ray crystal two solvatomorphs 2, which has p-F substituents on ligand, have been determined. all were examined. In THF solutions, 1–4 display deep blue phosphorescence (λmax = ∼440–460 nm, Φe 3–18% τ 0.5–3.5 μs). solutions at room temperature, 5–8 show...

10.1039/c3sc21822h article EN Chemical Science 2013-01-01

Direct Z-scheme NiTiO3/g-C3N4 heterojunctions were successfully assembled by using simple calcination method and the photoelectrochemical photocatalytic performance investigated light emitting diode (LED). The photoanode composed heterojunction with about 50 wt % NiTiO3 content exhibits best activity photoconversion efficiency up to 0.066%, which is 4.4 3.13 times larger than or g-C3N4. remarkably enhanced of can be due efficiently photogenerated electron-hole separation a mechanism.

10.1021/acsami.7b12386 article EN ACS Applied Materials & Interfaces 2017-11-07

Robust charge-neutral Pt(II) complexes containing dianionic tetradentate bis(N-heterocyclic carbene) ligands exhibit intense blue phosphorescence in fluid solutions and polymer films, have been vacuum-deposited as a phosphorescent dopant organic blue-light-emitting diodes.

10.1039/c1cc12943k article EN Chemical Communications 2011-01-01

Abstract Materials exhibiting excitation wavelength‐dependent photoluminescence (Ex‐De PL) in the visible region have potential applications bioimaging, optoelectronics and anti‐counterfeiting. Two multifunctional, chiral [Au(NHC) 2 ][Au(CN) ] (NHC=(4R,5R)/(4S,5S)‐1,3‐dimethyl‐4,5‐diphenyl‐4,5‐dihydro‐imidazolin‐2‐ylidene) complex double salts display Ex‐De circularly polarized luminescence (CPL) doped polymer films ground powder. Emission maxima can be dynamically tuned from 440 to 530 nm...

10.1002/anie.202000792 article EN Angewandte Chemie International Edition 2020-01-28

The “spontaneous oxidation-reduction reaction” strategy is used to inlay ultrafine Ru nanoparticles (∼1.5–2.0 nm) into a Ni(OH)<sub>2</sub> nanoarray on Ni foam for efficient H<sub>2</sub> evolution in 1.0 M KOH.

10.1039/c9ta02451d article EN Journal of Materials Chemistry A 2019-01-01

The increase of carbon dioxide (CO2) in the atmosphere has resulted a global greenhouse effect and extreme weather. Photocatalytic conversion CO2 into valuable chemicals driven by solar energy is conceivable for solving above problem. Metal–organic frameworks (MOFs) as class organic–inorganic hybrid materials have considerable prospect reduction reaction (CO2RR) photocatalysis. Nevertheless, most MOFs CO2RR still limited photocatalytic performance well selectivity caused having single metal...

10.1021/acscatal.1c04415 article EN ACS Catalysis 2021-12-13

Abstract Multiresonance (MR)‐induced thermally activated delayed fluorescence (TADF) emitters based on B‐ and N‐embedded polycyclic aromatics are desirable for ultrahigh‐definition organic light‐emitting diodes (OLEDs) due to their high photoluminescence quantum yield (PLQY) narrow bandwidth. But the reverse intersystem crossing (RISC) rates of MR‐TADF usually small, resulting in severe device efficiency roll‐off at brightness. To solve this issue, a sensitizer emitter has been required....

10.1002/adma.202208378 article EN Advanced Materials 2022-11-22
Coming Soon ...