Related Experiment Video
Updated: Jan 28, 2026

Sediment Core Sectioning and Extraction of Pore Waters under Anoxic Conditions
Published on: March 7, 2016
Self-supported Co3O4@Zn-CoNi2S4/NF core-shell nanoarrays as an efficient bifunctional electrode for overall water
Xuan Zhao1, Yu Dong1, Zhijie Wang1
1School of Science, Shenyang Ligong University Shenyang 110159 P. R. China naikunsun@163.com tyl.tongyongli@163.com.
Abstract:
It is a crucial matter to develop bifunctional transition metal catalysts for water electrolysis. In this study, we fabricate a Co3O4@Zn-CoNi2S4 core-shell heterostructure supported on nickel foam (Co3O4@Zn-CoNi2S4/NF). The compound structure can generate more active centers and exhibit some unique characteristics. Moreover, the doping of Zn further enhances the catalytic performance. It can optimize the lattice structure of the Co3O4@CoNi2S4/NF heterostructure and reduce the reaction energy barrier effectively, which can meet the relatively strict requirements of high-performance electrocatalysts. This material can be used as an efficient bifunctional electrocatalyst. In 1 M KOH electrolyte, the material shows excellent electrocatalytic performance for OER and HER. It possesses a low overpotential of 190 mV at 10 mA cm-2 for OER and 120 mV at 10 mA cm-2 for HER. Also, it maintains long-term stability. The Co3O4@Zn-CoNi2S4/NF electrolytic cell acts as a two-electrode system for overall water splitting. It needs a battery voltage of 1.45 V to drive the current density to 10 mA cm-2. This research has proved that combining metal doping with heterogeneous interface design is a feasible strategy for developing high-performance bifunctional electrocatalysts.
More Related Videos
13:09Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
Published on: January 6, 2016
10:15Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
Published on: November 7, 2025
Related Concept Videos
Standard Electrode Potentials
The Nucleosome Core Particle
The paradox
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...
The Nucleosome Core Particle
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their primary aim is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. On the other hand, they must allow polymerase enzymes to access histone-bound DNA during...
Self-Help Support Groups
Accessibility and Cost-Effectiveness
One of the primary strengths of self-help...
¹H NMR: Complex Splitting
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied...
Water and Mineral Acquisition