A5080410732- Catalysis and Hydrodesulfurization Studies
- Catalytic Processes in Materials Science
- Industrial Gas Emission Control
- Porphyrin and Phthalocyanine Chemistry
- Petroleum Processing and Analysis
- Chemical Synthesis and Reactions
- Advanced Photocatalysis Techniques
- Supramolecular Self-Assembly in Materials
- Hydrocarbon exploration and reservoir analysis
- Membrane Separation Technologies
- Oxidative Organic Chemistry Reactions
- Zeolite Catalysis and Synthesis
- Polydiacetylene-based materials and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Enhanced Oil Recovery Techniques
- Photochromic and Fluorescence Chemistry
- Nanomaterials for catalytic reactions
- Electrocatalysts for Energy Conversion
- Catalysis for Biomass Conversion
- Membrane Separation and Gas Transport
- Surface Modification and Superhydrophobicity
- Advanced Chemical Physics Studies
- Asymmetric Hydrogenation and Catalysis
- Analytical Chemistry and Chromatography
- Industrial Technology and Control Systems
China University of Petroleum, East China
2015-2024
China University of Petroleum, Beijing
2002-2020
Qingdao Center of Resource Chemistry and New Materials
2015-2020
State Council of the People's Republic of China
2017
State Key Laboratory of Heavy Oil
2016
Sinopec (China)
2011
Binzhou University
2009-2011
University of Manchester
2008-2010
Qingdao University of Science and Technology
2008
East Tennessee State University
2000-2006
The interplay between hydrogen bonding, hydrophobic interaction and the molecular geometry of amino acid side-chains is crucial to development nanostructures short peptide amphiphiles. An important step towards developing their practical use understand how different tune bonding this process leads control size shape nanostructures. In study, we have designed synthesized three sets amphiphilic peptides (I(3)K, LI(2)K L(3)K; L(3)K, L(4)K L(5)K; I(3)K, I(4)K I(5)K) investigated I L affected...
Peptide amphiphiles readily self-assemble into a variety of nanostructures, but how molecular architectures affect the size and shape nanoaggregates formed is not well understood. From combined TEM AFM study series cationic peptide surfactants AmK (m = 3, 6, 9), we show that structural transitions (sheets, fibers/worm-like micelles, short rods) can be induced by increasing length hydrophobic region. The trend interpreted using packing theory developed to describe surfactant transitions,...
Background Biocatalytic processes often require a full recycling of biocatalysts to optimize economic benefits and minimize waste disposal. Immobilization onto particulate carriers has been widely explored as an option meet these requirements. However, surface properties affect the amount immobilized, their bioactivity stability, hampering wide applications. The aim this work is explore how immobilization lipases magnetite nanoparticles affects biocatalytic performance under carefully...
The performance of adsorption desulfurization and stability MOF-5@AC were improved, when MOF-5 was covered on the surface AC.
Porous liquids are porous materials that have exhibited unique properties in various fields. Herein, we developed a method to synthesize the type I via liquefaction of cyclodextrins by chemical modification. The cyclodextrin were characterized Fourier-transform infrared (FTIR) spectroscopy, NMR, matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS), circular dichroism (CD), and UV–vis spectroscopy. measured ionic conductivity γ-cyclodextrin liquid was...
The role of proteins in biomineralization has been examined this work by studying the effect ovalbumin on stabilization metastable CaCO3 phases. In absence ovalbumin, mixing Na2CO3 with CaCl2 an aqueous solution led to formation phases that swiftly transformed into stable calcite crystals within 4 h under experimental conditions. However, was found favor and spherical vaterites, concentration dependent. presence 2 g/L for example, vaterite microspheres diameters ranging from 0.9 3.0 μm,...
Asphaltenes have a tendency toward aggregation, leading to series of problems (e.g., coking) in the field refining or other oil utilization and making development disaggregation method an urgent need. We employed functional group methylation experiments combined with molecular dynamics simulations quantum chemical calculations reveal mechanism asphaltenes based on alteration method. Here, experimental results show that intersheet distances asphaltene aggregate increase after reaction,...
Dynamic processes of molecular self-assembly from two surfactant-like peptides A6K and A9K have been investigated by combining AFM TEM measurements with SANS measurements. Aggregated peptide stacks were formed during the first hour solution preparation, followed their assembly into short nanofibrillar segments in subsequent few hours to 24 period. The alignment nanofibers mature long ones then occurred, final lengths extended several microns but diameters remaining fixed at 5–8 nm. Even...
Although one dimensional (1D) Pt nanostructures with well-defined sizes and shapes have fascinating physiochemical properties, their preparation remains a great challenge. Here we report an easy novel synthesis of 1D controllable morphologies, through the combination designer self-assembling I3K phage-displayed P7A peptides. The nanofibrils formed via self-assembly acted as template. precursors ((PtCl4)2− (PtCl6)2−) were immobilized by electrostatic interaction on positively charged template...
A series of organically–inorganically functionalized MCM-41 compounds have been prepared with 3-aminopropyltrimethoxysilane (APTMS) as the organic component and CuO and/or Cu(NO3)2 inorganic component. The textural properties were characterized by powder X-ray diffraction (XRD), nitrogen adsorption–desorption, transmission electron microscopy (TEM). results indicate that hexagonally ordered structure remained intact after functionalization. presence grafted organosilanes was confirmed...
An interfacially active cobalt complex, dodecylbenzenesulfonate, was synthesized. Elemental analysis, atomic absorption spectroscopy, Fourier transform infrared spectroscopy (FT-IR), thermogravimetric and surface/interfacial tension determination were performed to investigate the properties of catalyst. Results showed that synthesized catalyst interfacial behavior, decreasing surface between heavy oil liquid phase below 30 1.5 mN/m, respectively. The not thermally degraded at a temperature...
As a major constituent of egg white matrix, ovalbumin has long been perceived to be implicated in the formation avian eggshells, particular, mammillary layer. However, very little is known about detailed mechanism by which this protein mediates shell calcification. By combined studies AFM, SEM, and TEM, we have investigated influence on CaCO(3) precipitation under vitro mineralization conditions. We observed that was multifold. This modified morphology calcite crystals through distinct...