A5071154593- Catalytic Processes in Materials Science
- Catalysis and Hydrodesulfurization Studies
- Zeolite Catalysis and Synthesis
- Advanced Photocatalysis Techniques
- Advancements in Battery Materials
- Catalysis and Oxidation Reactions
- Electrocatalysts for Energy Conversion
- Carbon and Quantum Dots Applications
- Electrochemical Analysis and Applications
- Quantum Dots Synthesis And Properties
- Advanced biosensing and bioanalysis techniques
- Advanced Battery Materials and Technologies
- Ferroelectric and Piezoelectric Materials
- Advanced Battery Technologies Research
- Mesoporous Materials and Catalysis
- Nanocluster Synthesis and Applications
- Ammonia Synthesis and Nitrogen Reduction
- TiO2 Photocatalysis and Solar Cells
- Hydrogen Storage and Materials
- Fuel Cells and Related Materials
- Nanomaterials for catalytic reactions
- Graphene research and applications
- Advanced battery technologies research
- Organometallic Complex Synthesis and Catalysis
- Catalysis for Biomass Conversion
China University of Petroleum, Beijing
2015-2024
State Key Laboratory of Heavy Oil
2014-2023
Lomonosov Moscow State University
2021
Shanxi Zhendong Pharmaceutical (China)
2020
Air Products (Germany)
2016
Communication University of China
2016
Shanghai Normal University
2015
Sichuan University
2013
Energy Research Institute
2012
The University of Texas at Austin
2009-2012
Sulfur-doped carbon dots were synthesized by a one-step hydrothermal method and exhibited high fluorescence quantum yield (67%) exceptional emission behavior.
Quantum dots, derived from two-dimensional (2D) materials, have shown promising applications in bioimaging, photocatalysis, biosensors and white light emission devices (W-LEDs).
Abstract The environmental problems of global warming and fossil fuel depletion are increasingly severe, the demand for energy conversion storage is increasing. Ecological issues such as stringent, increasing needs. rapid development clean energy, solar wind hydrogen expected to be key solve problem. Several excellent literature works have highlighted quantum dots in supercapacitors, lithium-sulfur batteries, photocatalytic production. Here, we outline latest achievements their composites...
Abstract Designing high‐performance and low‐cost electrocatalysts for oxygen evolution reaction (OER) is critical the conversion storage of sustainable energy technologies. Inspired by biomineralization process, we utilized phosphorylation sites collagen molecules to combine with cobalt‐based mononuclear precursors at molecular level built a three‐dimensional (3D) porous hierarchical material through bottom‐up biomimetic self‐assembly strategy obtain single‐atom catalysts confined on...
The unique economical design of sulfur and nitrogen co-doped carbon dots with high photoluminescence quantum yield superior performance for environmental Hg<sup>2+</sup>detection.
ZnO nanowires, CuO and α-Fe2O3 nanotubes as well their corresponding arrays have been successfully synthesized via a low cost, generalizable, simplistic template method. Diameters of one-dimensional (1-D) metal oxide nanostructures (∼60−260 nm), measuring micrometers in length, can be reliably reproducibly controlled by the pore channel dimensions. Associated vertically aligned attached to surfaces number geometrically significant substrates, such curved plastic glass rod motifs. The...
Collisions of several kinds metal or oxide single nanoparticles (NPs) with a less catalytic electrode surface have been observed through amplification the current by electrocatalysis. Two general types response, staircase blip (or spike) are seen particle collisions. The responses were caused random individual events as function time rather than usual continuous an ensemble large number events. treatment stochastic electrochemistry like NP collisions is different from model for...
Abstract Iron‐based heterogeneous catalysts, which were generally prepared by pyrolysis of iron complexes on supports at elevated temperature, found to be capable catalyzing the transfer hydrogenation furfural (FF) furfuryl alcohol (FFA). The effects metal precursor, nitrogen and support catalytic performance examined thoroughly, a comprehensive study reaction parameters was also performed. highest selectivity FFA reached 83.0 % with FF conversion 91.6 under optimal condition. Catalyst...
Abstract Recent experiments on the observation of collisions single nanoparticles (NPs) with an electrode through amplification current by electrocatalysis are described. Systems in which particles adhere to upon collision produce a step and staircase response, while those only interact for short time spike or blip, little change steady state current. Examples both behaviors, e. g., Pt NPs Au hydrazine oxidation (staircase response) IrO x water (blip shown. Controlling nature surface is...
We report on the M\"ossbauer spectra and magnetization properties of single-crystalline ${({\text{BiFeO}}_{3})}_{x}\text{\ensuremath{-}}{({\text{BaTiO}}_{3})}_{1\ensuremath{-}x}$ solid solution nanostructures in form nanocubes, measuring approximately 150 to 200 nm a side, prepared by molten salt solid-state reaction method compositional range wherein $0.5\ensuremath{\le}x\ensuremath{\le}1$. Powder x-ray diffraction (XRD) monochromatic synchrotron XRD studies indicate products high purity,...
Single nanoparticle (NP) collisions were successfully observed by a potentiometric measurement. The open circuit potential (OCP) of measuring Au ultramicroelectrode (UME) changes when Pt NPs collide with the UME in hydrazine solution. OCP change is related to redox processes, concentration particles, particle size, and electrode size. Compared amperometric technique, this approach has several advantages: higher sensitivity, simpler apparatus, fewer problems NP decomposition, contamination.
After growing a thin layer of oxide (PtOx) by anodization Pt electrode, it changed from catalytically active for electrochemical NaBH4 oxidation into an inactive electrode. When held at potential where the film was maintained, collisions individual 14 nm diameter Au nanoparticles (NPs) that catalyzed were successfully observed as discrete current pulses (spikes or blips) each NP interaction with modified electrode via amplification oxidation. The response is affected concentration and...
One-dimensional (1-D) metal (Ag, Au, and Pt) nanowires their corresponding arrays have been synthesized using an ambient, surfactantless synthesis technique. The potential applicability of such crystalline, highly purified 1-D samples for practical uses was specifically demonstrated in manifestation as electrocatalysts oxygen reduction reaction (ORR). Specifically, Pt nanostructures possessed a higher ORR activity compared with that nanoparticles alone. Ag Au also evinced reasonable alkaline...
In the present work, highly efficient and stable Au/CeO2–TiO2 photocatalysts were prepared by a microwave-assisted solution approach. The composites with optimal molar ratio of Au/Ce/Ti 0.004:0.1:1 delivered remarkably high NO conversion rate 85% in continuous flow reactor system under simulated solar light irradiation, which far exceeded 48% over pure TiO2. tiny Au nanocrystals (∼1.1 nm) well stabilized CeO2 via strong metal–support bonding even it was subjected to calcinations at 550 °C...
We investigate the principle of open circuit potential (OCP) change upon a particle collision event based on mixed theory and confirmed by mimic experiment in which we studied changes OCP when two different electrodes (Pt Au) are brought into contact solution that contains some irreversible redox couples. A micrometer-sized Au ultramicroelectrode, connected parallel to Pt micro- or nanoelectrode, showed clearly measurable whose magnitude matches well with predicted simplified for pair...
Realistic models of graphene oxide membranes were developed and validated to interpret the exceptional water permeation in association with X-ray photoelectron spectroscopy, thermogravimetric differential scanning calorimetry analysis, dynamic vapor sorption measurements. With respect GO oxidization level, surface distributions functionalized domains analyzed line TEM observations, 3 types interlayer slit pores identified. The hydrophilicity degrees as-defined strongly influence their H2O...
Development of energy storage materials with high density to fulfill the demand next generation batteries is a blistering topic under immense debate. The Li–O2 battery attracting much more attention for its enhanced theoretical compared traditional Li-ion battery. Porous oxygen-breathing catalysts, especially biomass-derived materials, could offer plenty oxygen diffusion paths and Li2O2 formation space, which beneficial In this work, simple method used prepare phosphorus doped...