Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

1.7K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
1.7K
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

550
Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
550
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

151
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
151
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)01:20

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

1.0K
When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
1.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Talin1 loss activates DRG neurons to accelerate bone remodeling and fracture healing in mice.

Journal of orthopaedic translation·2026
Same author

MOF gel network crosslinked mixed matrix membranes with engineered interface for high-efficiency Helium recovery.

Nature communications·2026
Same author

High-Throughput Screening Assisted Discovery of Robust Metal-Organic Frameworks for Efficient Ambient NO<sub>2</sub> Removal.

Journal of the American Chemical Society·2026
Same author

Constructing Amine-Functionalized Hierarchically Porous Porphyrin-Based Metal-Organic Frameworks for Highly Enhanced Direct Air Capture of CO<sub>2</sub>.

ACS applied materials & interfaces·2025
Same author

Effect of Electron Beam Irradiation on the Porosity of Polysulfone Membranes Studied by Positron Annihilation Lifetime Spectroscopy.

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

Optimization of a Low Surface Energy Coating for Enhanced Water Resistance and Condensation Suppression.

Materials (Basel, Switzerland)·2024

Related Experiment Video

Updated: Jun 13, 2025

Author Spotlight: Non-Invasive Imaging of Complex Bio-Structures Using Polarization-Sensitive Two-Photon Microscopy
05:54

Author Spotlight: Non-Invasive Imaging of Complex Bio-Structures Using Polarization-Sensitive Two-Photon Microscopy

Published on: September 8, 2023

1.1K

Surface Microstructure Study on Corona Discharge-Treated Polyethylene Using Positron Annihilation Spectroscopy.

Jingjing Li1, Zhiwei Shen1, Liuyang Tie1

  • 1Guangdong Key Laboratory for Hydrogen Energy Technologies, School of Materials Science and Hydrogen Energy, Foshan University, Foshan 528000, China.

Molecules (Basel, Switzerland)
|September 14, 2024
PubMed
Summary

Corona discharge treatment alters polyethylene insulation, increasing polar groups and hydrophilicity. Positron annihilation spectroscopy reveals microstructural changes and degradation depth, aiding performance prediction for high-voltage cables.

Keywords:
S parametercorona dischargefree volumehydrophilicitypositron annihilation

More Related Videos

An Atmospheric Pressure Plasma Setup to Investigate the Reactive Species Formation
08:36

An Atmospheric Pressure Plasma Setup to Investigate the Reactive Species Formation

Published on: November 3, 2016

9.9K
Quantification of Polybutylene Adipate Terephthalate-based Micro- and Nano-plastics from Soil Using Proton Nuclear Magnetic Resonance Spectroscopy
05:05

Quantification of Polybutylene Adipate Terephthalate-based Micro- and Nano-plastics from Soil Using Proton Nuclear Magnetic Resonance Spectroscopy

Published on: June 6, 2025

39

Related Experiment Videos

Last Updated: Jun 13, 2025

Author Spotlight: Non-Invasive Imaging of Complex Bio-Structures Using Polarization-Sensitive Two-Photon Microscopy
05:54

Author Spotlight: Non-Invasive Imaging of Complex Bio-Structures Using Polarization-Sensitive Two-Photon Microscopy

Published on: September 8, 2023

1.1K
An Atmospheric Pressure Plasma Setup to Investigate the Reactive Species Formation
08:36

An Atmospheric Pressure Plasma Setup to Investigate the Reactive Species Formation

Published on: November 3, 2016

9.9K
Quantification of Polybutylene Adipate Terephthalate-based Micro- and Nano-plastics from Soil Using Proton Nuclear Magnetic Resonance Spectroscopy
05:05

Quantification of Polybutylene Adipate Terephthalate-based Micro- and Nano-plastics from Soil Using Proton Nuclear Magnetic Resonance Spectroscopy

Published on: June 6, 2025

39

Area of Science:

  • Materials Science
  • Surface Science
  • Polymer Science

Background:

  • Corona discharge treatment is crucial for modifying polymer surfaces, impacting high-voltage cable insulation performance.
  • Understanding microstructural and chemical changes is key to predicting material behavior under electrical stress.

Purpose of the Study:

  • To investigate the depth profile of microstructural and chemical changes in corona discharge-treated polyethylene (PE).
  • To correlate these changes with the performance and degradation of PE insulation materials.

Main Methods:

  • Utilized Doppler broadening of positron annihilation spectroscopy (DBPAS) and positron annihilation lifetime spectroscopy (PALS).
  • Employed attenuated total reflectance Fourier transform infrared spectra (ATR-FTIR), Raman spectra, and contact angle measurements.
  • Employed a slow positron beam for non-destructive depth profiling.

Main Results:

  • Increased corona discharge duration led to more oxygen-containing polar groups, enhancing hydrophilicity.
  • Mean free volume size decreased slightly, while the degradation layer thickness increased and diffused into the PE matrix.
  • A linear S-W plot indicated no change in defect type, with S parameter decreasing and W parameter increasing with corona duration.

Conclusions:

  • Corona discharge treatment significantly alters PE microstructure and surface chemistry, affecting hydrophobicity/hydrophilicity.
  • Positron annihilation techniques provide effective non-destructive profiling of degradation in insulation materials.
  • The findings aid in predicting the performance and longevity of high-voltage cable insulation.