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

Urea Cycle01:23

Urea Cycle

50.0K
The urea cycle describes how liver cells convert ammonia to urea. Ammonia is a toxic waste product of protein catabolism. Land animals must convert ammonia into the less toxic urea which can be safely eliminated by the kidneys through urine. Marine animals excrete ammonia directly, and the surrounding water dilutes the ammonia to safe levels.
50.0K
Electro-mechanical Systems01:19

Electro-mechanical Systems

1.6K
Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
1.6K
Oxidation Numbers03:14

Oxidation Numbers

42.2K
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules.
42.2K
Pyruvate Oxidation01:15

Pyruvate Oxidation

168.5K
After glycolysis, the charged pyruvate molecules enter the mitochondria via active transport and undergo three enzymatic reactions. These reactions ensure that pyruvate can enter the next metabolic pathway so that energy stored in the pyruvate molecules can be harnessed by the cells.
First, the enzyme pyruvate dehydrogenase removes the carboxyl group from pyruvate and releases it as carbon dioxide. The stripped molecule is then oxidized and releases electrons, which are then picked up by NAD+...
168.5K
Lumber Defects01:23

Lumber Defects

489
Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability.
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
489
Oxidation-Reduction Reactions03:11

Oxidation-Reduction Reactions

75.2K
Oxidation–Reduction Reactions
75.2K

You might also read

Related Articles

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

Sort by
Same author

Photoelectrochemical aptasensor based on biomass-derived carbon/BiOI nanoflowers for in-situ monitoring of abscisic acid.

Mikrochimica acta·2026
Same author

Corrigendum to "Genistein alleviates skin inflammation in atopic dermatitis by inhibiting mast cell degranulation through toll-like receptor" [Phytomedicine. 2026 May 15;157:158308. Epub ahead of print. PMID: 42184496].

Phytomedicine : international journal of phytotherapy and phytopharmacology·2026
Same author

Plasma ECRG4 as a novel diagnostic marker for Alzheimer's disease associated with oligodendrocyte dysfunction.

American journal of translational research·2026
Same author

Genistein alleviates skin inflammation in atopic dermatitis by inhibiting mast cell degranulation through toll-like receptor.

Phytomedicine : international journal of phytotherapy and phytopharmacology·2026
Same author

Accumulation-Mode Organic Photoelectrochemical Transistor for Giant Panda Papillomavirus Sensing.

Analytical chemistry·2026
Same author

Fragment of esophageal cancer-related gene-4 induces lysosome-dependent cell death via cathepsin secretion in astrocytes.

Tissue & cell·2026

Related Experiment Video

Updated: Jan 22, 2026

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles
08:43

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

Published on: October 27, 2018

18.8K

Defective NiFe2 O4 Nanoparticles for Efficient Urea Electro-oxidation.

Fengchi Wu1,2, Gang Ou1,2, Ye Wang3

  • 1International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen, 518060, China.

Chemistry, an Asian Journal
|July 9, 2019
PubMed
Summary

Defective nickel-iron oxide (NiFe2O4) nanoparticles show enhanced performance for urea electro-oxidation, a crucial process for removing urea pollutants from wastewater. This defect engineering strategy offers potential for broader environmental applications.

Keywords:
defect engineeringheterogeneous catalysisoxidationspinelurea

More Related Videos

Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
07:24

Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle

Published on: September 22, 2015

14.8K
Author Spotlight: Exploring the Antibacterial Effects of Zinc Oxide Nanoparticles in Overcoming Antibiotic Resistance
06:42

Author Spotlight: Exploring the Antibacterial Effects of Zinc Oxide Nanoparticles in Overcoming Antibiotic Resistance

Published on: September 27, 2024

2.7K

Related Experiment Videos

Last Updated: Jan 22, 2026

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles
08:43

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles

Published on: October 27, 2018

18.8K
Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
07:24

Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle

Published on: September 22, 2015

14.8K
Author Spotlight: Exploring the Antibacterial Effects of Zinc Oxide Nanoparticles in Overcoming Antibiotic Resistance
06:42

Author Spotlight: Exploring the Antibacterial Effects of Zinc Oxide Nanoparticles in Overcoming Antibiotic Resistance

Published on: September 27, 2024

2.7K

Area of Science:

  • Materials Science
  • Environmental Science
  • Electrochemistry

Background:

  • Urea is a significant organic pollutant in sewage, necessitating effective removal methods for environmental protection.
  • Electrocatalytic oxidation of urea is a promising technology for wastewater treatment and energy conversion.

Purpose of the Study:

  • To investigate the impact of surface defects on the electrocatalytic performance of NiFe2O4 nanoparticles for urea oxidation.
  • To develop a facile method for creating tunable surface defects in NiFe2O4 nanoparticles.

Main Methods:

  • Synthesis of NiFe2O4 nanoparticles using a facile and versatile lithium reduction method to introduce surface defects.
  • Electrochemical characterization of pristine and defective NiFe2O4 nanoparticles for urea electro-oxidation.

Main Results:

  • Defective NFO-5Li nanoparticles exhibited significantly improved urea electro-oxidation performance compared to pristine NFO nanoparticles.
  • NFO-5Li showed a lower overpotential (1.361 V vs. 1.398 V) and Tafel slope (31.4 mV dec⁻¹ vs. 37.3 mV dec⁻¹) at 10 mA cm⁻².
  • The defective nanoparticles demonstrated outstanding electrocatalytic stability.

Conclusions:

  • Surface defect engineering is an effective strategy to enhance the urea electro-oxidation activity of NiFe2O4 nanoparticles.
  • The developed defective NFO nanoparticles show great potential for applications in environmental remediation and beyond.
  • The facile lithium reduction method provides a versatile route for defect engineering in nanomaterials.