Related Experiment Video
Updated: May 16, 2025

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
Published on: May 23, 2018
A two-dimensional amorphous VOPO4/graphene heterostructure for high-voltage aqueous Zn-ion batteries
Jinxing Jiang1, Yihong Huang2, Zhigang Fan3
1Key Laboratory of Advanced Optoelectronic Functional Materials of Gansu Province, Key Laboratory for New Molecule Materials Design and Function of Gansu Universities, School of Chemical Engineering and Technology, Tianshui Normal University, Tianshui 741001, China.
Abstract:
A novel two-dimensional (2D) amorphous VOPO4/graphene (A-VOP/G) heterostructure, which features rapid ion diffusion pathways, numerous active sites, high conductivity, and superior stability, serves as a high-voltage cathode for zinc-ion batteries (ZIBs). The A-VOP/G cathode achieves a high-voltage platform (1.50 V) and is stable over 2000 cycles at 5 A g-1.
Related Concept Videos
Valence Bond Theory
Ionic Crystal Structures
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Molecular and Ionic Solids
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
Van der Waals Equation
First, the attractive forces between molecules, which are stronger at higher densities and reduce the pressure, are considered by adding to the pressure a term equal to the square of the molar density multiplied by a positive coefficient a. Second, the...

