A5100332955- Graphene research and applications
- 2D Materials and Applications
- Advancements in Battery Materials
- Graphene and Nanomaterials Applications
- Electrocatalysts for Energy Conversion
- Supercapacitor Materials and Fabrication
- Carbon and Quantum Dots Applications
- Power Systems and Renewable Energy
- Metalloenzymes and iron-sulfur proteins
- Nanomaterials for catalytic reactions
- Ammonia Synthesis and Nitrogen Reduction
- Mineralogy and Gemology Studies
- Power Systems and Technologies
- Air Quality Monitoring and Forecasting
- Conducting polymers and applications
- Smart Grid and Power Systems
- Perovskite Materials and Applications
- Polyoxometalates: Synthesis and Applications
- Magnetism in coordination complexes
- Atmospheric and Environmental Gas Dynamics
- Quantum and electron transport phenomena
- Air Quality and Health Impacts
- High-pressure geophysics and materials
- Metal Extraction and Bioleaching
- Geomechanics and Mining Engineering
Fuzhou University
2022
Sinosteel (China)
2020-2021
Shanghai Jiao Tong University
2021
Jiangsu University
2021
Nanjing University
1988-2020
Collaborative Innovation Center of Advanced Microstructures
2016-2019
Dalian University of Technology
2012
Abstract Doping of low-dimensional graphitic materials, including graphene, graphene quantum dots and single-wall carbon nanotubes with nitrogen, sulfur or boron can significantly change their properties. We report that simple fluorination followed by annealing in a dopant source superdope materials high level N, S B. The superdoping results the following doping levels: (i) for 29.82, 17.55 10.79 at% N-, S- B-doping, respectively; (ii) dots, 36.38 N-doping; (iii) nanotubes, 7.79 10.66 N-...
Abstract Graphene quantum dots with the high edge-to-area ratio have possibly substantial spin polarized edge states, which theoretically can generate fascinating magnetic properties. The magnetism of well-defined graphene is relevant both fundamental physics and potential applications in spintronics. In this article, we report intrinsic dots. Our average diameter ca. 2.04 nm show purely Curie-like paramagnetism local moment 1.2 μ B at 2 K. It proposed that may mainly origin from residual...
Graphdiyne (GDY), a two-dimensional artificial-synthesis carbon material, has aroused tremendous interest because of its unique physical properties. The very high activity affords the possibility to chemically dope GDY with metal atoms or lightweight elements such as hydrogen and halogen so on. Chemical doping been confirmed be an effective method lead various derivatives useful Thus, this review is intended provide overview electronic, optical, magnetic properties pristine reported from...
Phosphorus (P)-doping in vacancies of graphene sheets can significantly change graphene's physical and chemical properties. Generally, a high level for P-doping is difficult due to the low concentration vacancy but needed synthesize with perfect Herein, we synthesized P-superdoped very P content 6.40 at. % by thermal annealing fluorographite (FGi) vapor. Moreover, show that be adjusted wide range from 2.86 changing mass ratio red phosphorus FGi. The magnetic results (i) effectively create...
Monolayer graphene oxide quantum dots (GOQDs) were obtained by oxidative cutting. The magnetic properties of GOQDs studied. results show that most are nonmagnetic, and only few weakly paramagnetic. ratio with the average diameter 4.13, 3.3, 1.67 nm is 1/14, 1/15, 1/70, respectively. It proposed edge states magnetism suppressed defects and/or correlation induced spins cancellation between fragments boundary, hydroxyl groups on basal plane major source GOQDs.
Graphene oxide nanoribbons (GONRs) annealed at the low temperature of 400 °C (aGONRs-400) are developed as an excellent room-temperature (RT) ferromagnet. The saturated magnetization (Ms) aGONRs-400 is high, up to 0.39 emu/g room temperature, and RT ferromagnetism (FM) exhibits ambient stability with Ms preserved for over half a year. preferential distribution magnetic phenolic hydroxyl toward edges, which contributes long-range ferromagnetic couplings, was confirmed by X-ray photoemission...
Abstract Creation of high-density localized spins in the basal plane graphene sheet by introduction sp 3 -type defects is considered to be a potential route for realization high-magnetization graphene. Theoretical and experimental studies confirmed that hydroxyl can an effective candidate inducing robust magnetic moment. However, artificial generation groups creating on very scarce. Here we demonstrate high-content generated oxide (GO) ring opening epoxy groups. We show 10.74 at.% groups,...
Abstract The sizeable direct bandgap, high mobility, and long spin lifetimes at room temperature offer black phosphorus (BP) potential applications in spin‐based semiconductor devices. Toward these applications, a critical step is creating magnetic response BP, which arousing much interest. It reported here that ambient degradation of immediate inevitable greatly changes the semiconducting properties, creates moments, any degree leads to notable paramagnetism. Its Landau factor g measured...
Both outdoor and indoor ozone concentrations have negative health effects on human. This paper proposes an artificial neural network to estimate the a mass balance model tool concentrations. The prediction of concentration levels is great significance for people's health. estimation models are validated by measured data selected from monitoring stations field measurements in room Nanjing, respectively. accuracy evaluated. built this can generally some extent, while single zone useful...
Through direct electrochemical potentiostatic-potentiodynamic reduction of the starting materials graphene oxide (GO) and Fast Red Al Salt, anthraquinone functionalized nanocomposite was developed as a highly efficient electrocatalyst for oxygen reaction (ORR) in alkaline conditions. Scanning electron microscopy, Transmission X-ray diffraction, Raman photoelectron spectroscopy characterizations revealed that most oxygen- containing functional groups on GO were removed after electroreduction....
An efficient oxygen reduction reaction (ORR) can be achieved by accelerating the movement of electrons, ions, reactants, and products. Here, we prepared core–shell nanohybrids with Fe0.8Zn0.2 nanoparticles wrapped in mesoporous nitrogen-doped carbon layers (Fe0.8Zn0.2@MNC). Due to partial volatilization, sample has high porosity conductivity, which provides fast-moving channels for The coupling effect trace zinc iron metal is beneficial improve catalyst activity. results showed that...
Practice has proved that the high-quality growth of a regional economy is closely related to optimization and upgrading economic structure.Since reform opening up, Zhejiang's economy, which characterized by industrial clusters professional markets, developed rapidly, at same time, it continuously optimized industry promoted rapid development economy.This paper analyzes structure Zhejiang Province, explores problems proposes certain solutions.
In order to solve the problems of low utilization efficiency and unclear transaction mechanism distributed energy storage in active distribution network (ADN), this paper proposes unified management shared operators (SESO), taking into account SESO benefits ADN benefits, establishes multi-objective optimization model Stackelberg game. First, gam framework is introduced, then a mathematical established which leader has greatest economic follower smallest operating cost carbon emissions. It...
Methyl ethyl carbonate (EMC) is the primary raw material for electrolyte of lithium-ion batteries. It mainly prepared by transesterification reaction dimethyl (DMC) and EtOH. However, homogeneous alkaline catalysts such as sodium alcohol commonly used in industry are easy to deactivate challenging separate recover. Therefore, ionic liquid decorated zeolitic imidazolate frameworks (IL@ZIFs) heterogeneous were using a simple method with DBU an inducer. In synthetic route IL@ZIFs, ligand ZIFs...
Insufficient reduction capability and scanty active substance limit the application of LaFeO3(LFO) in field photoelectrochemical (PEC) water splitting. This work demonstrates a judicious combination LFO/Nafion composite to improve PEC performance by unique dip-coating method on FTO. The photocurrent density LFO electrode coated with two layers Nafion increased -23.9μA cm-2at 0.47 V versus RHE, which is 4.1 times that pristine LFO. Based experimental data theoretical analysis, improvement...
EPR study on UV-irradiated single crystal of (NH3iPr)6 [Mo8 O28(CHO)2]·2H2O was carried out at room temperature. Three sets lines were observed. Spectra I and II are attributed respectively to paramagnetic Mo (V) centre (A) (B). Line III may be assigned an unstable-paramagnetic centre. Using the least-squares-fitting method calculate Hamiltonian parameters, we got accurate principal values g, hyperfine AMO ligand AH tensors, as well as-the direction cosines their axes with respect...