A5047240429- Graphene research and applications
- Supercapacitor Materials and Fabrication
- Semiconductor materials and devices
- 2D Materials and Applications
- Catalytic Processes in Materials Science
- Advancements in Battery Materials
- Advancements in Semiconductor Devices and Circuit Design
- Laser-Ablation Synthesis of Nanoparticles
- Risk and Portfolio Optimization
- Environmental remediation with nanomaterials
- Carbon Nanotubes in Composites
- Nanomaterials for catalytic reactions
- Fuzzy Systems and Optimization
- Ga2O3 and related materials
- Carbon dioxide utilization in catalysis
- Graphene and Nanomaterials Applications
- Metamaterials and Metasurfaces Applications
- Fullerene Chemistry and Applications
- Stochastic processes and financial applications
University of Hong Kong
2017-2019
Hong Kong University of Science and Technology
2017-2019
Lanzhou University
2015
Lanzhou City University
2015
Chinese Academy of Sciences
2009
Abstract Impurities produced during the synthesis process of a material pose detrimental impacts upon intrinsic properties and device performances as-obtained product. This effect is especially pronounced in graphene, where surface contamination has long been critical, unresolved issue, given graphene’s two-dimensionality. Here we report origins which primarily rooted chemical vapour deposition production at elevated temperatures, rather than transfer storage. In turn, demonstrate design Cu...
Contamination commonly observed on the graphene surface is detrimental to its excellent properties and strongly hinders application. It still a great challenge produce large-area clean film in low-cost manner. Herein, we demonstrate facile scalable chemical vapor deposition approach synthesize meter-sized samples of superclean with an average cleanness 99 %, relying weak oxidizing ability CO2 etch away intrinsic contamination, i.e., amorphous carbon. Remarkably, elimination carbon enables...
Chemical vapor deposition (CVD) enables the large-scale growth of high-quality graphene film and exhibits considerable potential for industrial production graphene. However, CVD-grown contains surface contamination, which in turn hinders its applications, example, electrical optoelectronic devices graphene-membrane-based applications. To solve this issue, we demonstrated a modified gas-phase reaction to achieve contamination-free film, i.e., superclean graphene, using metal-containing...
Visualization of the chemical structures two-dimensional (2D) materials and their interfaces at virtually atomic scale is an imperative step toward devising highly efficient ultrathin optoelectronic devices. Herein, we demonstrate a universal method featuring time-of-flight secondary ion mass spectrometry (ToF-SIMS), coupled with structure simplicity 2D materials, as versatile tool to reveal vertical layers various including graphene, hexagonal boron nitride (h-BN), transition metal...
A Pd–MCM-48 catalyst with an ultrahigh surface area was used to catalyse the hydro-dechlorination of 4-chlorophenol.
Over the past a few years, high-quality graphene preparation has been evolved from low-yield micromechanical exfoliation in including wide range of production methods, particular by chemical vapor deposition (CVD). Here, we review state-of-the-art on synthesis using CVD method and strategies to control grain size, number layers morphology, mainly focusing growth that uses Cu as substrate. We highlight success research field provide methods were used for such controlled synthesis.
Abstract Contamination commonly observed on the graphene surface is detrimental to its excellent properties and strongly hinders application. It still a great challenge produce large‐area clean film in low‐cost manner. Herein, we demonstrate facile scalable chemical vapor deposition approach synthesize meter‐sized samples of superclean with an average cleanness 99 %, relying weak oxidizing ability CO 2 etch away intrinsic contamination, i.e., amorphous carbon. Remarkably, elimination carbon...
Usually, expected return and risk are two fundamental factors which investors consider. In some cases, may consider other such as liquidity. The turnover rates of securities can be used to measure their Considering trapezoidal possibility distribution the on securities, we propose an optimization model for portfolio selection. A numerical example is given illustrate behavior proposed selection model.
Graphen. In ihrer Zuschrift auf S. 14588 beschreiben H. Peng, Z. Liu et al. die großformatige Synthese von hochreinem Graphen durch chemische Dampfabscheidung und selektive Ätzung amorphen Kohlenstoffverunreinigungen mit CO2.