A5072063902- Carbon Nanotubes in Composites
- Graphene research and applications
- Advancements in Battery Materials
- Advanced biosensing and bioanalysis techniques
- Gold and Silver Nanoparticles Synthesis and Applications
- Carbon and Quantum Dots Applications
- Graphene and Nanomaterials Applications
- Supercapacitor Materials and Fabrication
- Nanopore and Nanochannel Transport Studies
- Fullerene Chemistry and Applications
- Molecular Junctions and Nanostructures
- Quantum Dots Synthesis And Properties
- Electrochemical sensors and biosensors
- Advanced Nanomaterials in Catalysis
- Mechanical and Optical Resonators
- Conducting polymers and applications
- Spectroscopy Techniques in Biomedical and Chemical Research
- Electrocatalysts for Energy Conversion
- Nanomaterials for catalytic reactions
- Catalytic Processes in Materials Science
- Advanced Battery Materials and Technologies
- Analytical Chemistry and Chromatography
- Ionic liquids properties and applications
- Layered Double Hydroxides Synthesis and Applications
- Water Treatment and Disinfection
Southwest University
2018-2023
Fuzhou University
2023
State Key Laboratory of Rare Earth Materials Chemistry and Application
2012-2021
Peking University
2012-2021
Beijing National Laboratory for Molecular Sciences
2011-2021
Shanghai University of Engineering Science
2019
State Key Laboratory of Pollution Control and Resource Reuse
2015
Tongji University
2015
Chongqing Medical University
2015
Huazhong University of Science and Technology
2015
The growth of zigzag single-walled carbon nanotubes (SWNTs) is most challenging among all types SWNTs, with the highest reported selectivity ∼7%. Here we realized dominant (16,0) tubes at abundance near ∼80% by using intermetallic W6Co7 catalysts containing plenty (1 1 6) planes together optimizing conditions. These may act as structure templates for SWNTs due to geometrical match between open end tube and atomic arrangements in W6Co7. Using designed solid state template suitable kinetic...
Compared with carbon nanotubes and graphene, graphene oxide (GO) exhibits excellent water solubility biocompatibility in addition to the characteristic G band Raman spectra. Therefore GO might be able act as a flexible probe image cells or tissues through mapping. However, weak intensity of restricts such applications GO. Here we decorated Au nanoparticles found that aqueous dispersions were remarkably enhanced by surface enhancement effect. Therefore, rapid imaging for Hela 229 was realized...
Graphene oxide (GO), as a typical two-dimensional material, possesses range of oxygen-containing groups and shows surfactant and/or polyelectrolyte-like characteristics. Herein, GO sheets with narrow size distribution were prepared by an ultracentrifugation-based process the aggregation behaviour in pure water electrolyte aqueous solution studied using laser light scattering (LLS). When adding common electrolytes, such NaCl MgCl2, into dispersions, occurs irreversible coagulation eventually...
Semiconducting single-walled carbon nanotubes (s-SWNTs) with diameters of 1.0–1.5 nm (with similar bandgap to crystalline silicon) are highly desired for nanoelectronics. Up date, the highest reported content s-SWNTs as-grown is ∼97%, which still far below daunting requirements high-end applications. Herein, we report a feasible and green pathway use H2O vapor modulate structure intermetallic W6Co7 nanocrystals. By using resultant nanocatalysts high percentage (1 0 10) planes as structural...
ConspectusSingle-walled carbon nanotubes (SWNTs) have shown great potential in various applications attributed to their unique structure-dependent properties. Therefore, the controlled preparation of chemically and structurally pristine SWNTs is a crucial issue for advanced (e.g., nanoelectronics) has been challenge two decades.Epitaxial growth from well-defined seeds be promising strategy control structure SWNTs. Segments nanotubes, including short pipes cutting preformed caps opening...
The growth of semiconducting single-walled carbon nanotubes (s-SWNTs) on flat substrates is essential for the application SWNTs in electronic and optoelectronic devices. We developed a flexible strategy to selectively grow s-SWNTs silicon using ceria-supported iron or cobalt catalysts. Ceria, which stores active oxygen, plays crucial role selective process by inhibiting formation metallic via oxidation. so-produced ultralong s-SWNT arrays are immediately ready building field effect transistors.
We have found that fluorescein possesses high visible-light-induced oxidase mimetic activity and could transform colorless 3,3',5,5'-tetramethylbenzidine (TMB) into blue oxidized TMB (oxTMB) without unstable destructive H2 O2 under visible-light illumination. Instead, uses oxygen as a mild green electron acceptor, its can be easily controlled by the switching "on/off" of visible light. In addition, catalytic mechanism was elucidated in detail and, main reactive species h+ O2.- accounted for...
Sequence-dependent interactions between DNA and single-wall carbon nanotubes (SWCNTs) are shown to provide resolution for the atomic-structure-based sorting of DNA-wrapped SWCNTs. Previous studies have demonstrated that aqueous two-phase (ATP) systems very effective SWCNTs (DNA-SWCNTs). However, most separations been carried out with a polyethylene glycol (PEG)/polyacrylamide (PAM) ATP system, which shows severe interfacial trapping many DNA-SWCNT dispersions, resulting in significant...
An <italic>ω</italic><sub>RBM</sub>–<italic>d</italic><sub>t</sub> relation specifically suitable for random SWNTs on SiO<sub>2</sub>/Si substrates grown by various catalysts.
A new high-performance ternary LDH supercapacitor with excellent electrochemical performance is fabricated by using cation modulation and sodium dodecyl sulfonate intercalation.
Fluorescence and Raman bimodal imaging multifrequency of Hela cells are carried out with the help two kinds graphene oxide-based hybrids. As a multifunctional platform, oxide acts as not only probe, but also substrate for fluorescent probes to load on.
Abstract The chiral structure of single‐walled carbon nanotubes (SWNTs) and the edge graphene nanoribbons (GNRs) play an important role in determining their electronic phonon structures. Spectroscopic methods, which require simple sample preparation cause minimal damage, are most commonly utilized techniques for structures SWNTs graphene. In this review current status various spectroscopic methods presented detail, including resonance Raman, photoluminescence (PL), Rayleigh scattering...
Graphene oxides (GO) can be considered as polyelectrolytes with surfactant-like characteristics. On one hand, due to the electrical repulsion between negatively charged ionized edges, GO exhibits great water solubility; on other its hydrophobic central plane retains potential of strong π-π interaction conjugated sp(2) network structures. Therefore, it is expected that serve an excellent dispersing agent for dispersion various carbon-based nanomaterials in aqueous phase. Here we report a...
To explore poly(phenylacetylene) (PPA) derivatives as the dispersing agent of single-walled carbon nanotubes (SWNTs), we synthesized a new series side chain PPAs (denoted PPA-m, m = 2, 1, 0). The chains PPA-m bear soluble 3,4,5-tris(octyloxy)phenyl moiety at end, and biphenyl (m 2), phenyl 1), or no ring 0) in middle linked to PPA main-chain through an ether linkage. All three PPA-ms can efficiently disperse SWNTs organic solvents forming stable SWNTs/PPA-m composites. composites were...
In this work, we report an accurate and convenient method that can be used to assign the chirality of all metallic single-walled carbon nanotubes (M-SWNTs). This is designed based on electronic Raman scattering (ERS) features, which are resonantly enhanced at corresponding excitonic transition energies (Mii+ Mii–). Using method, able accurately determine property Mii with resolution a vibrational spectroscopy (∼0.3 meV), significantly higher than spectroscopies (∼3 meV). We use splitting...