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

Types of Reversible Electrodes01:24

Types of Reversible Electrodes

For electrode reversibility to be maintained, all the reactants and products involved in the half-reaction must be present at the electrode. There are several types of reversible electrodes (half-cells).In metal-metal-ion electrodes, a metal balances electrochemically with a solution of its own ions. Examples are Cu2+|Cu and Zn2+|Zn. Metals that react with the solvent, like group 1 and most group 2 metals, which react with water, and zinc, which reacts with aqueous acidic solutions, cannot be...

You might also read

Related Articles

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

Sort by
Same author

Selective electrochemical oxidative coupling of methane mediated by Sr<sub>2</sub>Fe<sub>1.5</sub>Mo<sub>0.5</sub>O<sub>6-δ</sub> and its chemical stability.

Communications chemistry·2023
Same author

Artificial neural network prediction of self-diffusion in pure compounds over multiple phase regimes.

Physical chemistry chemical physics : PCCP·2021
Same author

Machine learning prediction of self-diffusion in Lennard-Jones fluids.

The Journal of chemical physics·2020
Same author

Nitrogen electroreduction and hydrogen evolution on cubic molybdenum carbide: a density functional study.

Physical chemistry chemical physics : PCCP·2018
Same author

Applicability of density functional theory in reproducing accurate vibrational spectra of surface bound species.

Journal of computational chemistry·2014
Same author

Electro-reduction of nitrogen on molybdenum nitride: structure, energetics, and vibrational spectra from DFT.

Physical chemistry chemical physics : PCCP·2014

Related Experiment Video

Updated: Jun 8, 2026

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
09:02

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Published on: April 27, 2018

Titanium dioxide-supported non-precious metal oxygen reduction electrocatalyst.

Gang Wu1, Mark A Nelson, Nathan H Mack

  • 1Materials Physics & Applications Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. wugang@lanl.gov

Chemical Communications (Cambridge, England)
|September 18, 2010
PubMed
Summary

Researchers developed a novel non-precious metal oxygen reduction catalyst using heat-treated polyaniline on TiO(2) with iron. This new catalyst shows improved performance, narrowing the gap with platinum catalysts in electrochemical testing.

More Related Videos

A Continuous-flow Photocatalytic Reactor for the Precisely Controlled Deposition of Metallic Nanoparticles
11:49

A Continuous-flow Photocatalytic Reactor for the Precisely Controlled Deposition of Metallic Nanoparticles

Published on: April 10, 2019

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
10:15

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

Published on: November 7, 2025

Related Experiment Videos

Last Updated: Jun 8, 2026

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
09:02

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Published on: April 27, 2018

A Continuous-flow Photocatalytic Reactor for the Precisely Controlled Deposition of Metallic Nanoparticles
11:49

A Continuous-flow Photocatalytic Reactor for the Precisely Controlled Deposition of Metallic Nanoparticles

Published on: April 10, 2019

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
10:15

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

Published on: November 7, 2025

Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Developing efficient and cost-effective oxygen reduction reaction (ORR) catalysts is crucial for electrochemical energy technologies.
  • Non-precious metal catalysts are highly sought after as alternatives to platinum-based catalysts due to cost and scarcity concerns.
  • Polyaniline and titanium dioxide (TiO(2)) are known materials with potential catalytic applications.

Purpose of the Study:

  • To synthesize and characterize a novel non-precious metal ORR catalyst.
  • To evaluate the catalytic performance of the new material, particularly its efficiency and durability.
  • To compare the performance of the developed catalyst with existing carbon black-supported catalysts and platinum/carbon (Pt/C).

Main Methods:

  • In situ polymerization of polyaniline onto TiO(2) particles in the presence of iron (Fe) species.
  • Heat treatment of the synthesized polyaniline/TiO(2)/Fe composite.
  • Electrochemical characterization using rotating disk electrode (RDE) testing to assess ORR activity.
  • Performance evaluation at various catalyst loadings.

Main Results:

  • A new non-precious metal ORR catalyst was successfully synthesized via heat treatment of polyaniline polymerized onto TiO(2) in the presence of Fe species.
  • The TiO(2)-based catalyst demonstrated improved performance compared to a similar catalyst supported on carbon black.
  • At high catalyst loading, the performance gap between the non-precious metal catalyst and commercial Pt/C was reduced to approximately 20 mV in RDE testing.

Conclusions:

  • The developed non-precious metal catalyst utilizing TiO(2) support shows significant promise for ORR applications.
  • The integration of polyaniline, TiO(2), and Fe species offers an effective strategy for enhancing catalyst performance.
  • This advancement contributes to the development of more economical and efficient electrocatalysts for energy conversion devices.