Xian He

ORCID: 0009-0005-8289-8575
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Electrocatalysts for Energy Conversion
  • Advanced battery technologies research
  • Liquid Crystal Research Advancements
  • Gas Sensing Nanomaterials and Sensors
  • Fuel Cells and Related Materials
  • Electrochemical Analysis and Applications
  • Copper-based nanomaterials and applications
  • Photonic and Optical Devices
  • Catalytic Processes in Materials Science
  • Supercapacitor Materials and Fabrication
  • Synthesis and properties of polymers
  • Semiconductor Lasers and Optical Devices
  • Minerals Flotation and Separation Techniques
  • Photonic Crystals and Applications
  • Organic Electronics and Photovoltaics
  • Catalysis and Hydrodesulfurization Studies
  • Thermal Radiation and Cooling Technologies
  • 2D Materials and Applications
  • MXene and MAX Phase Materials
  • Ionic liquids properties and applications
  • Electromagnetic wave absorption materials
  • Petroleum Processing and Analysis
  • Transition Metal Oxide Nanomaterials
  • Surfactants and Colloidal Systems
  • ZnO doping and properties

Beijing University of Posts and Telecommunications
2019-2024

Tsinghua University
2022-2024

State Key Laboratory of New Ceramics and Fine Processing
2022-2024

University of Science and Technology Beijing
2023-2024

State Key Laboratory of Information Photonics and Optical Communications
2022-2023

Wuhan University of Technology
2022

Central South University
2011-2012

Abstract The introduction of electronegative non‐metallic heterostructures is promisingly desired to develop Ru‐based oxide catalysts, which have higher activity and robust stability for acidic oxygen evolution reaction (OER). Developing scalable synthetic strategies enlightening the mechanism understanding enhancement imperative but still challenging. Herein, a facile selenium‐assisted reduction approach reported fabricate partially reduced nano‐sized Ru with mixed‐valence Se species...

10.1002/adfm.202211102 article EN Advanced Functional Materials 2022-12-11

Direct deposition of isolated metal atoms onto substrates has been recognized as a simple route to obtain high performance supported atomically dispersed metals (SACs), however, the agglomeration driven by surface energy is difficult avoid.

10.1039/c9ta07469d article EN Journal of Materials Chemistry A 2019-01-01

The electronic structure of transition meatal oxides is in the predominant position among mostly central reactions, such as oxygen electroncatalysis, for applications energy storage. Herein, cobalt‐based catalysts are developed by taking advantage strong electronegativity halogen elements, whose activity and stability also guaranteed. A “theory–calculation–experiment” research system proposed to sort out relationship between heteroatoms layered CoO/F, CoO/Cl, CoO/Br, electrochemical...

10.1002/sstr.202100069 article EN Small Structures 2021-07-20

The increasing demand for clean energy conversion and storage has increased interest in hydrogen production via electrolytic water splitting. However, the simultaneous of oxygen this process poses a challenge extracting pure without using ionic conducting membranes. Researchers have developed various innovative designs to overcome issue, but continuous splitting separated tanks remains desirable approach. This study presents novel, roll-to-roll that enables fully decoupled evaluation...

10.1002/advs.202301872 article EN cc-by Advanced Science 2023-07-03

Polymer-dispersed liquid crystals (PDLCs) show great application potential in the areas of displays and smart windows. However, their electro-optical (E-O) properties such as contrast ratio threshold voltage still need further improvement. In this study, effects α-substituted acrylate monomers on morphology E-O PDLC composite films were systematically studied. It was found that large substituent tended to increase void size polymer matrix, while small fluorine substitution led a...

10.1021/acsami.3c13382 article EN ACS Applied Materials & Interfaces 2023-12-07

Despite the great progress in research of integrated catalytic electrodes for hydrogen evolution reaction, efficient preparation high-performance with high current density remains a challenging issue. In this work, metal (Pt)-amorphous oxide (NiO) heterostructure catalyst is successfully situ grown on nickel foam using liquid Joule-heating. Based superhydrophilic surface electrode and its superior mechanical chemical stability, exhibits excellent performance alkaline electrolytes only 100 mV...

10.1002/smtd.202300544 article EN Small Methods 2023-09-15

Combination of steric and chain crosslinking agents can sufficiently improve the electro-optical performance PDLC films.

10.1039/d3cp05683j article EN Physical Chemistry Chemical Physics 2024-01-01

The proposed film has a good light modulation capability within the solar spectrum (Δ T lum = 75.13 and Δ sol 66.41), maximum cooling power during day night reaches 97.63 W m −2 K −1 136.24 , respectively.

10.1039/d4ta04621h article EN Journal of Materials Chemistry A 2024-01-01

A series of polymer-dispersed liquid crystal (PDLC) films were prepared by using acrylate monomers containing heteroatom-terminated groups. The microscopic morphology and electro-optical properties reveal that these effectively reduce the switching voltage improve contrast ratio at same time. saturation best sample was reduced 47%, improved 74%. In addition, introduction various heteroatoms endows PDLC with a variety functionalities. Sulfur atoms increase refractive index polymer matrix...

10.1021/acsami.4c12591 article EN ACS Applied Materials & Interfaces 2024-11-02

The pivotal role of oxygen electrocatalysis in the realm energy conversion and storage is unmistakably significant. In an endeavor to diminish reliance on precious metals, development innovative catalysts exhibiting exceptional bifunctional durability heightened activity for both reduction reaction (ORR) evolution (OER) has garnered considerable scholarly interest. Employing a straightforward two-step methodology, we have successfully synthesized uniformly distributed MnCo2O4 CoMn2O4...

10.3390/app132312702 article EN cc-by Applied Sciences 2023-11-27

Abstract Oxygen reduction reaction (ORR) catalysts are critical components for the development of high‐efficiency fuel cells and metal‐air batteries. Supported PtCo alloy nanoparticles (NPs) with modified surface properties reactivity through ligand, strain and/or ensemble effects regarded as promising inexpensive low‐Pt candidates. Herein, we report an annealing‐free assembly anchored on nitrogen‐doped mesoporous carbon (PtCo@NMC) advanced ORR electrocatalysis in both alkaline acidic...

10.1002/celc.202000830 article EN ChemElectroChem 2020-07-22

Employing organo‐metal zinc acetylacetonate (Zn(acac) 2 ) as the zincic source, various oxide (ZnO) products with different morphologies have been synthesised via a typical solvothermal method in polar organic solvents. Quasi‐spherical and rod‐like structures diverse sizes are successfully fabricated methanol, ethanol, 1‐propanol, isopropanol, acetone solutions of NaOH, respectively. Moreover, their microstructures investigated by X‐ray powder diffraction electron microscopy. A possible...

10.1049/mnl.2018.5289 article EN Micro & Nano Letters 2019-07-17

A novel solid-liquid reaction route has been developed to synthesize rodlike submicron cobalt oxalate via dissolution of powders by oxalic acid. The rod diameter and length the particles were found be remarkably altered using HCl or HNO 3 as additive. With additive rice-shaped generated while with slender needlelike created an average aspect ratio up 42. Furthermore, strings Co O 4 nanobeads obtained calcination precursor in air. CoC 2 ·2H rods characterized scanning electron microscopy...

10.4028/www.scientific.net/amr.233-235.260 article EN Advanced materials research 2011-05-01
Coming Soon ...