A5100441676- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Nanomaterials for catalytic reactions
- Catalysis and Hydrodesulfurization Studies
- Electrocatalysts for Energy Conversion
- Advanced Photocatalysis Techniques
- Industrial Gas Emission Control
- Catalysts for Methane Reforming
- Hydraulic Fracturing and Reservoir Analysis
- Hydrocarbon exploration and reservoir analysis
- Environmental remediation with nanomaterials
- Ammonia Synthesis and Nitrogen Reduction
- Adhesion, Friction, and Surface Interactions
- Copper-based nanomaterials and applications
- Supercapacitor Materials and Fabrication
- Chromium effects and bioremediation
- Adsorption and biosorption for pollutant removal
- Metal-Organic Frameworks: Synthesis and Applications
- Zeolite Catalysis and Synthesis
- Wastewater Treatment and Nitrogen Removal
- Oxidative Organic Chemistry Reactions
- ZnO doping and properties
- NMR spectroscopy and applications
- Evaluation Methods in Various Fields
- Plasma Applications and Diagnostics
Guizhou University
2023-2025
Institute of Rock and Soil Mechanics
2024
Changsha University of Science and Technology
2015-2024
Chinese Academy of Sciences
2024
Shenyang Institute of Automation
2024
Kunming University of Science and Technology
2021-2024
Education Department of Hunan Province
2018-2023
Changsha University
2023
Henan Normal University
2023
Beijing University of Chemical Technology
2016-2023
Chromium speciation in naturally contaminated soils appears more complex than spiked studies have shown. This study characterized Cr (oxidation states; availability; molecular geometry) intended to highlight the genesis of immobile Cr(VI) species long-term tannery waste-contaminated soils. In a series samples obtained from Shuitou China, chemical extraction methods showed that Cr(III) was dominant(>96.7% total Cr), with concentration up 144 mg kg-1. Of present, represents >90%....
Although the rational synthesis of catalysts with strong oxide-support interactions to modulate geometric and electronic structures achieve unusual catalytic performance is challenging in heterogeneous catalysis, it significant demand for efficient sustainable transformation chemicals. Here, we report a ceria-supported two-dimensional manganese oxide catalyst metal interactions, which help produce well-dispersed amorphous MnOx layers on CeO2 matrix (MnOx/CeO2). This readily reacts molecular...
Well-dispersed Ni and Sm<sub>2</sub>O<sub>3</sub> nanoparticles embedded in an ordered mesoporous Al<sub>2</sub>O<sub>3</sub> material simultaneously exhibit high catalytic activity stability for the CO methanation reaction.
Characterizing pore structure is one of the most fundamental tasks in reservoir characterization; it closely related to calculation/interpretation other critical parameters, such as permeability and capillary pressure. High-pressure mercury injection (HPMI), a low-pressure nitrogen gas adsorption (LP-N2GA), specific surface area (SSA) analysis, nuclear magnetic resonance (NMR), fractal theory were used study characteristics irreducible water saturation tight samples from Chang 7 formation...
The discovery of novel protoporphyrinogen IX oxidase (PPO) inhibitors has become a key focus in herbicide development. To explore new PPO inhibitors, series N-phenylphthalimide derivatives with ether moieties were designed and successfully synthesized. Among these, compound B18 (Ki = 10.3 nM) exhibited strong inhibitory effect on NtPPO, outperforming flumiclorac-pentyl 46.3 flumioxazin 52.0 nM). It is noted that compounds A3, B18, B19, B20 showed broad-spectrum herbicidal activity against...
We report a novel method of synthesizing uniform Pd nanoparticle catalysts with tunable particle size on activated carbon (AC) supports. is deposited AC supports by atomic layer deposition (ALD) using hexafluoroacetylacetonate and HCOH as the precursors. The ALD surface reaction becomes saturated long precursor exposures. loading roughly linear to number cycle. increased cycles leads growth in density size. Modifying chemical state support provides an alternative controlling nanoparticles....
A novel ternary Mn<sub>0.1</sub>Co<sub>0.9</sub>Cr<sub>2</sub>O<sub>4</sub> catalyst was identified from a range of chromium-based spinel-type oxides for the SCR NO<italic>x</italic> in coking flue gas. The reaction mainly occurs between adsorbed NH<sub>3</sub> and nitrates, following Langmuir–Hinshelwood mechanism.
Abstract The development of noble‐metal‐free heterogeneous catalysts is promising for selective oxidation aromatic alcohols; however, the relatively low conversion non‐noble metal under solvent‐free atmospheric conditions hinders their industrial application. Now, a holey lamellar high entropy oxide (HEO) Co 0.2 Ni Cu Mg Zn O material with mesoporous structure prepared by an anchoring and merging process. HEO has ultra‐high catalytic activity aerobic benzyl alcohol. Up to 98 % can be...
Fine constructing the chemical environment of central metal is vital in developing efficient single-atom catalysts (SACs). Herein, atomically dispersed Cu on N-doped carbon modulated by introducing CuP moiety to CuNC SAC. Through fine-tuning with another heteroatom P, SAC shows superior performance ethylene oxychlorination. The site activity Cu-NPC four times higher than P-free Cu-NC catalyst and 25 Ce-promoted CuCl2 /Al2 O3 long-term test (>200 h). selectivity dichloride can be...
We investigated the contact behaviors of a nanoscopic stiff thin film bonded to compliant substrate and derived an analytical solution for determining elastic modulus films. Microscopic deformations gold polydopamine films (<200 nm) coated on polydimethylsiloxane elastomers were measured by indenting soft tip analyzed in framework classical plate theory Johnson-Kendall-Roberts (JKR) mechanics. The analysis this mechanics focused bending stretching resistance is fundamentally different from...
It has been shown experimentally that Pd50Cu50 nanoalloy achieves the maximum activity for CO oxidation (COox) and oxygen reduction reaction (ORR) on composition-tuned PdCu bimetallic catalysts, but origin of this catalytic synergy remains unclear. In work, results our density functional theory (DFT) calculations show weakest adsorption strength O2 in terms most pronounced charge transfer between Pd Cu is responsible observed highest catalyst both COox ORR over a series nanoalloys. For COox,...
Mn-doped CeO2 flower-like microstructures have been synthesized by a facile one-step composite-hydroxide-mediated method. The structure, morphology, optical and the surface properties of Mn doped investigated X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), UV-Vis absorption spectroscopy photoelectron (XPS). XRD results confirmed successful incorporation into lattice through formation face-centered cubic solid solution. photocatalytic activities catalysts were...
Achievement of a higher NOx conversion ratio in selective catalytic reduction (SCR) at low temperature is challenging. In this work, pure activated carbon fibres (ACFs) were modified with different ratios H2O (g), NaOH, CO2 and HNO3, respectively (named as ACF). The chemical physical properties ACFs identified by Brunauer-Emmett-Teller, X-ray diffraction, Fourier transform infrared spectroscopy photoelectron methods. ACF was improved from 56.1% to 82.4% 80°C after modification 30% (mass...
The supported transition metal oxides, chlorides, carbides, and so forth (MXn), represent an important type of catalyst for redox processes. MXn–support interaction, analogous to metal-support plays a critical role in reactions. Herein, we illustrated the nature monolayer CuCl2–γ-Al2O3 its catalytic consequence induced by support facets ethylene oxychlorination. Kinetic theoretical studies, combined with operando spectroscopy demonstrated effects interaction between CuCl2 various exposed...