Changchun He

ORCID: 0000-0002-4642-0575
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About
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Research Areas
  • Electrocatalysts for Energy Conversion
  • Phase Equilibria and Thermodynamics
  • Advanced battery technologies research
  • Thermodynamic properties of mixtures
  • Ionic liquids properties and applications
  • Electrochemical Analysis and Applications
  • Hydrogen Storage and Materials
  • Machine Learning in Materials Science
  • Advanced Photocatalysis Techniques
  • Advanced Nanomaterials in Catalysis
  • Catalysts for Methane Reforming
  • Chemical Thermodynamics and Molecular Structure
  • Graphene research and applications
  • Fuel Cells and Related Materials
  • 2D Materials and Applications
  • Superconductivity in MgB2 and Alloys
  • Geotechnical Engineering and Soil Stabilization
  • Electronic and Structural Properties of Oxides
  • Ammonia Synthesis and Nitrogen Reduction
  • Nuclear Materials and Properties
  • Boron and Carbon Nanomaterials Research
  • Chemical and Physical Properties in Aqueous Solutions
  • Microstructure and Mechanical Properties of Steels
  • Catalytic Processes in Materials Science
  • Nanowire Synthesis and Applications

South China University of Technology
2019-2024

Beijing Normal University
2024

Xuzhou University of Technology
2019-2024

Southern University of Science and Technology
2022

Southwest Petroleum University
2021

Harbin Institute of Technology
2021

East China University of Technology
2021

East China University of Science and Technology
2009-2014

Beijing Jiaotong University
2014

State Key Laboratory of Chemical Engineering
2010-2012

Rationally designing highly catalytic and stable nanozymes for metabolite monitoring is of great importance because their huge potential in early disease diagnosis. Herein, a novel nanozyme based on hierarchically structured CuS/ZnS with efficient peroxidase (POD)-mimic capability was developed synthesized multiple determination recognition via the plasmon-stimulated biosensor array strategy. The designed can simultaneously harvest plasmon triggered hot electron–hole pairs generate...

10.1021/acsami.3c16561 article EN ACS Applied Materials & Interfaces 2024-01-31

Developing earth-abundant transition metal (TM)-based electrocatalysts toward oxygen reduction reaction (ORR) is significant in overcoming the high cost of fuel cells. Herein, using an as-synthesized proton-conductive coordination polymer (termed TM-DHBQ) as a template, we investigate ORR performance series such TM-DHBQs via screening 3d, 4d, and 5d TMs. We find that most 3d exhibit distinguished durability under turnover conditions. The formation energies these adsorption free intermediates...

10.1021/acs.jpclett.1c02665 article EN The Journal of Physical Chemistry Letters 2021-09-16

A new thermodynamic model based on an equation of state for square-well chain fluid with variable range (SWCF-VR) is proposed to describe the properties aqueous solutions ionic liquids. In this approach electrostatic interactions are characterized via mean spherical approximation and associations between cations anions liquid considered through shield-sticky approach. The densities, osmotic coefficients, vapor pressures nine liquids (ILs) containing [Cxmim][Br] (x = 2, ..., 6), [C4mim][BF4]...

10.1021/ie102156m article EN Industrial & Engineering Chemistry Research 2011-04-28

A series of carbon nanotubes (CNTs)-supported cobalt–ceria catalysts were designed, synthesized, and tested in a fixed-bed reactor for selectively converting syngas into higher alcohols long chain hydrocarbons. In order to investigate the synergistic effect cobalt ceria, different geometric structures Co-CeO2–x adjusted designed by using confinement effects catalyst loading amounts. The selectivities production C2+ ethanol 10Co10Ce/CNTs 67.0% 38.4%, respectively, among alcohol distribution....

10.1021/acs.iecr.1c04663 article EN Industrial & Engineering Chemistry Research 2022-03-08

Abstract 2D materials have attracted considerable attention in the past decades for their unique properties, making understanding of nucleation process key to effective synthesis. Traditional explanations thin‐film growth, focusing on competition between atom interactions at interface and within layers, often fall short explaining real experimental results. Herein, a penetrated mechanism is proposed growth metal substrates, taking into account role substrate atoms. This approach leads better...

10.1002/adfm.202404885 article EN Advanced Functional Materials 2024-05-07

Thin-film transistors (TFTs) with ScInO or MgScInO semiconductors were fabricated the annealing temperature of only 150 °C. Compared TFT, TFT exhibited much better stability under negative-bias stress (NBTS) at 60 °C negative turn-on voltage (VON) shift -0.6 V initial stage (≤900 s) and then positive VON (>900 s). Firstprinciples calculations show that oxygen vacancies (V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">O</sub> ) tend to be...

10.1109/ted.2019.2911635 article EN IEEE Transactions on Electron Devices 2019-04-27

The first metallic glass of Au-Si alloy for over half a century has been discovered, but its atomic structure is still puzzling. Herein, Au8Si dodecahedrons with local five-fold symmetry are revealed as building blocks in glass, and the interconnection modes determine medium-range order. With dimensionality reduction, surface ordering attributed to motif transformation into planar Au5Si pyramids symmetry, thus self-assembly leads formation ordered Au2Si monolayer lowest energy. Furthermore,...

10.1039/d2nr02975h article EN Nanoscale 2022-01-01
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