Related Experiment Video
Updated: Jul 29, 2025

Tuning Oxide Properties by Oxygen Vacancy Control During Growth and Annealing
Published on: June 9, 2023
Oxygen-vacancy-rich Co3O4@Fe-B-O heterostructure for efficient oxygen evolution reaction in alkaline and neutral
Lu Tian1, Dazhong Zhong1, Tao Zhao1
1College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, PR China; Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan 030024, Shanxi, PR China.
Abstract:
Developing highly efficient OER catalysts is essential for producing hydrogen from water electrolysis to compensate for conventional fossil fuel shortages. Here, the oxygen-vacancy-rich heterostructure grown on the Ni foam (NF) (Co3O4@Fe-B-O/NF) is fabricated. The synergistic effect between Co3O4 and Fe-B-O has been proven effectively modulate the electronic structure and produce highly active interface sites, ultimately leading to enhanced electrocatalytic activity. Co3O4@Fe-B-O/NFrequiresan overpotential of 237 mV to drive 20 mA cm-2 in 1 M KOH, and 384 mV to drive 10 mA cm-2 in 0.1 M PBS, superior to most catalysts currently used. Moreover, Co3O4@Fe-B-O/NF as an oxygen evolution reaction (OER) electrode shows great potential in overall water splitting and CO2 reduction reaction (CO2RR). This work may provide effective ideas for designing efficient oxide catalysts.
More Related Videos
10:21Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
08:40Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Related Concept Videos
Oxygenic Photosynthesis
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate
Oxidative Cleavage of Alkenes: Ozonolysis
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
Voltaic/Galvanic Cells
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Redox Equilibria: Overview