Related Experiment Video
Updated: Feb 13, 2026
15:04
Picometer-Precision Atomic Position Tracking through Electron Microscopy
Published on: July 3, 2021
8.4K
Graphdiyne Containing Atomically Precise N Atoms for Efficient Anchoring of Lithium Ion
Ze Yang1, Xiangyan Shen1,2, Ning Wang1
1Qingdao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , Qingdao 266101 , PR China.
ACS Applied Materials & Interfaces
|March 17, 2018
Summary
Novel nitrogen-doped carbon films, pyridine-graphdiyne (PY-GDY) and pyrimidine-graphdiyne (PM-GDY), show promise for lithium-ion batteries (LIBs). These materials offer high capacity and stability, making them excellent anode materials.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Developing advanced carbon materials for energy storage is crucial.
- Nitrogen doping is a key strategy to enhance carbon material performance.
- Existing anode materials for lithium-ion batteries face limitations in capacity and stability.
Purpose of the Study:
- To report a novel nitrogen-doping strategy for carbon materials.
- To synthesize large-area, self-supported porous nanocarbon networks: pyrimidine-graphdiyne (PM-GDY) and pyridine-graphdiyne (PY-GDY) films.
- To investigate the potential of these nitrogen-doped materials as anode materials for lithium-ion batteries (LIBs).
Main Methods:
- Facile chemical synthesis route for preparing uniform, continuous, flexible, and transparent nanocarbon films.
- Quantitative nitrogen doping, specifically pyridine-like nitrogen (N) atoms.
- Theoretical predictions using computational methods to assess suitability for lithium-ion storage.
- Electrochemical performance testing, including capacity, rate capability, and cycling stability.
Main Results:
- Successful preparation of large-area, uniform, and flexible PY-GDY and PM-GDY films.
- Films are quantitatively doped with pyridine-like nitrogen atoms.
- Theoretical predictions confirmed that pyridinic nitrogen enhances lithium-ion binding.
- PY-GDY and PM-GDY exhibited excellent electrochemical performance as LIB anode materials.
- High capacities of 1168 mA h g⁻¹ (PY-GDY) and 1165 mA h g⁻¹ (PM-GDY) at 100 mA g⁻¹.
- Exceptional cycling stability with 1500 cycles (PY-GDY) and 4000 cycles (PM-GDY) at 5000 mA g⁻¹.
Conclusions:
- The developed nitrogen-doping strategy yields high-performance carbon materials for energy storage.
- PY-GDY and PM-GDY are promising, stable, and high-capacity anode materials for next-generation lithium-ion batteries.
- The pyridine-like nitrogen doping significantly contributes to the enhanced electrochemical properties.
Related Concept Videos
01:33Atomic Structure
211.5K
Overview
211.5K
03:21The Energies of Atomic Orbitals
30.3K
In an atom, the negatively charged electrons are attracted to the positively charged nucleus. In a multielectron atom, electron-electron repulsions are also observed. The attractive and repulsive forces are dependent on the distance between the particles, as well as the sign and magnitude of the charges on the individual particles. When the charges on the particles are opposite, they attract each other. If both particles have the same charge, they repel each other.
30.3K
01:52Atomic Mass
70.5K
Atoms — and the protons, neutrons, and electrons that compose them — are extremely small. For example, a carbon atom weighs less than 2 × 10−23 g. When describing the properties of tiny objects such as atoms, we use appropriately small units of measure, such as the atomic mass unit (amu). The amu was originally defined based on hydrogen, the lightest element, then later in terms of oxygen. Since 1961, it has been defined with regard to the most abundant isotope of carbon, atoms of which...
70.5K
02:44Atomic Orbitals
45.2K
An atomic orbital represents the three-dimensional regions in an atom where an electron has the highest probability to reside. The radial distribution function indicates the total probability of finding an electron within the thin shell at a distance r from the nucleus. The atomic orbitals have distinct shapes which are determined by l, the angular momentum quantum number. The orbitals are often drawn with a boundary surface, enclosing densest regions of the cloud.
45.2K
03:24Hybridization of Atomic Orbitals I
67.8K
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
67.8K
03:08Atomic Radii and Effective Nuclear Charge
62.3K
The elements in groups of the periodic table exhibit similar chemical behavior. This similarity occurs because the members of a group have the same number and distribution of electrons in their valence shells.
62.3K