A5004472905- Chemical Looping and Thermochemical Processes
- Catalytic Processes in Materials Science
- Semiconductor materials and devices
- Catalysis and Oxidation Reactions
- Integrated Circuits and Semiconductor Failure Analysis
- Electrocatalysts for Energy Conversion
- Electronic and Structural Properties of Oxides
- Advancements in Semiconductor Devices and Circuit Design
- Catalysts for Methane Reforming
- Surfactants and Colloidal Systems
- Advanced battery technologies research
- Synthesis and properties of polymers
- Field-Flow Fractionation Techniques
- biodegradable polymer synthesis and properties
- Catalysis and Hydrodesulfurization Studies
- Semiconductor materials and interfaces
- Electrostatics and Colloid Interactions
- Advanced Photocatalysis Techniques
- Microbial Metabolites in Food Biotechnology
- Pigment Synthesis and Properties
- Epoxy Resin Curing Processes
- Stroke Rehabilitation and Recovery
- Industrial Gas Emission Control
- Phase Equilibria and Thermodynamics
- Carbon Dioxide Capture Technologies
Chinese Academy of Sciences
2017-2025
University of Chinese Academy of Sciences
2017-2025
Technical Institute of Physics and Chemistry
2025
Seoul National University of Education
2024
State Key Laboratory of Polymer Physics and Chemistry
2018-2023
Changchun Institute of Applied Chemistry
2018-2023
Suzhou Institute of Nano-tech and Nano-bionics
2023
University of Science and Technology of China
2018-2023
Max Planck Institute for Chemical Physics of Solids
2021-2022
Chang'an University
2022
Developing economic and applicable catalysts with elegant chlorine resistance organic byproduct inhibition capability is of great significance for chlorinated volatile compounds (Cl-VOCs) eco-friendly purification. Here, ternary CexSr1-xTiO3 tunable surface acidity oxygen species mobility were creatively fabricated using the hollow tubular-structured fruit hair Platanus (FHP; a widespread greenery waste) as scaffolding biotemplate. It shown that vacancy (Ov) triggered by presence Ce can...
Oxygen carriers with active sites have attained wide attention for chemical looping reforming of CH4 recently thanks to their capacity improve activation and oxygen reactivity. However, supported metals sintered significantly during multiple cycles, which entailed high metal loading (generally >5 wt %) realize great performance promotion caused coke formation. Herein, merely 0.1 % Ni addition into CeO2 could achieve remarkable enhancement drying methane conversion CO selectivity almost 100%...
It is of great significance to improve the syngas selectivity Fe-based oxygen carriers (OCs), because their sufficient lattice oxygen, low cost, and environmental compatibility in chemical looping partial oxidation CH4. In this work, it was found that addition Y could remarkably increase CO Fe2O3/Al2O3 98% with a CH4 conversion ∼90%. X-ray diffraction (XRD) transmission electron microscopy (TEM) characterizations combined Mössbauer spectroscopy illustrated incorporation led Fe species...
Suppressing coke deposition over reduced oxygen carriers, the key to breaking competing effects between supply and methane-to-syngas selectivity, is an important but challenging task for chemical looping partial oxidation technology. We report that A-site engineering of La1–xSrxFe0.8Al0.2O3 oxides significantly adjusts capacity, which nearly triples from 1.0 mmol/g (x = 0.1) 2.7 0.5) with CO selectivity maintaining above 94%. Characterization results show doping Sr at La-site induces dynamic...
Abstract Prohibiting deep oxidation remains a challenging task in oxidative dehydrogenation of light alkane since the targeted alkene is more reactive than parent substrate. Here we tailor dual active sites to isolate and instead homogeneously responsible for these two steps leading consecutive alkene. The introduction HY zeolite with acid sites, three-dimensional pore structure supercages gives rise Ni 2+ Lewis (LAS) NiO nanoclusters confined framework wherein catalytic ethane occurs on LAS...
Chemical looping partial oxidation of methane using a sole CO 2 oxidant (CL‐POM‐CO ) is an emerging technology for synthesis gas generation and utilization, which highly dependent on oxygen carrier (OC). In this work, Fe‐substituted La‐hexaaluminate as the OC was found to exhibit good reactivity stability during 50 periodic CH 4 /CO redox cycles due formation magnetoplumbite structure with introduction La. Deeper reduction did not destroy via charge compensation mechanism, increased further...
Low-carbon building materials are urgently needed due to the tremendous carbon emissions and energy consumption associated with traditional concrete materials. However, limited mechanical performance usually restricts practical applications of current low-carbon materials, massive adhesive utilization can cause their high embodied CO2. Here, tough sustainable bioinspired fabricated by binding sand grains glass fibers a small amount natural-based (below 3.2 wt.%) at low-temperature...
The crystalline structure and interfacial reactions in HfO2 films grown on InP (001) substrates was investigated as a function of film thickness. High resolution transmission electron microscopy x-ray diffraction measurements were used to investigate changes the films. As thickness increased, crystal transformed from monoclinic tetragonal, layer between substrate disappeared. photoelectron spectroscopy also applied confirm existence an chemical reaction HfO2/InP. An self-cleaning effect...
Fe2O3/Al2O3 oxygen carriers (OCs) are considered to be promising due their high reactivity in chemical looping combustion (CLC). However, iron species and supports suffered from severe sintering, leading the deactivation of this OC during multiple redox reaction. In work, a series silica modified alumina were used as Fe2O3 found that with addition 5% Si (Si-5) exhibited highest performance for CLC CH4 60 cycles. was discovered incorporated into Al rich coordination environment formed Si–O–Al...
Transition metal chalcogenides such as CoS2 have been reported competitive catalysts for oxygen evolution reaction. It has well confirmed that surface modification is inevitable in a process, with the formation of different re-constructed oxide layers. However, which species should be responsible optimized catalytic efficiencies and detailed interface structure between modified layer precatalyst remain controversial. Here, topological single crystal well-defined exposed used model catalyst,...
Transition metal phosphide alloying is an effective approach for optimizing the electronic structure and improving intrinsic performance of hydrogen evolution reaction (HER). However, obtaining 3d transition phosphides alloyed with noble metals still a challenge owing to their difference in electronegativity, influence modulated by on HER also remains unclear. In this study, we successfully incorporated Ru into Fe2P single crystal via Bridgeman method used it as model catalyst, which...
We investigated the chemical states and nature of defect below conduction band edge HfO2 films grown on GaAs (100) substrates using high-resolution x-ray photoelectron spectroscopy (HRXPS), absorption (XAS), density functional theory calculations. O K1-edge spectra HfO2/GaAs film revealed two distinct states, located at 1.6 ± 0.2 eV 3.0 in HfO2. The combined XAS HRXPS results as a function post-deposition annealing temperature indicated that changes were correlated with extent interfacial...
The effects of the postnitridation annealing treatment atomic-layer-deposited HfO2/InP (001) were investigated as a function temperature in an NH3 ambient. levels interfacial oxides In(PO3)3 and InPO4 gradually increased through re-oxidation process by diffusion oxygen impurities with increasing temperature. Especially, well-ordered hexagonal InN structure (101) single direction was formed at interface due to chemical reactions between In2O3 vapor after rapid thermal 600°C. In P into HfO2...
During the phase-change process of Ge <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> Sb Te xmlns:xlink="http://www.w3.org/1999/xlink">5</sub> in PRAM (Phase--hange Random Access Memory), dynamics are strongly dependent on quenching speed, i.e. cooling speed melted phase--change material. Here we report relation between programming pulse and phases memory detail. The existence critical is identified, which determines amorphous...