Tube-shaped g-C3N4 for enhanced piezocatalytic H2 evolution
Junying Nie1, Jianzhong Guo1, Shuying Liang1
1Zhejiang Key Laboratory of Green and Low-Carbon Utilization Technology of Agricultural and Forestry Biomass, College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou 311300, P. R. China. shali@zafu.edu.cn.
Chemical Communications (Cambridge, England)
|March 25, 2026
Summary
Researchers developed tube-shaped graphitic carbon nitride (g-C3N4) for enhanced piezocatalytic hydrogen production. This novel catalyst shows a significant 2.7-fold increase in hydrogen evolution rate compared to 2D g-C3N4.
Area of Science:
- Materials Science
- Catalysis
- Nanotechnology
Background:
- Graphitic carbon nitride (g-C3N4) is a promising material for photocatalytic and piezocatalytic applications.
- Developing efficient nanostructures of g-C3N4 is crucial for enhancing catalytic performance.
- Ultrasonic stimulation offers a sustainable energy input for driving catalytic reactions.
Purpose of the Study:
- To synthesize tube-shaped graphitic carbon nitride (g-C3N4) with enhanced piezocatalytic activity.
- To investigate the effect of tubular morphology on piezoelectric polarization and charge separation.
- To evaluate the hydrogen evolution rate of the synthesized g-C3N4 catalyst under ultrasonic stimulation.
Main Methods:
- Synthesis of tube-shaped g-C3N4 using a combined hydrothermal and thermal polymerization strategy.
- Utilizing melamine and urea as co-precursors.
- Characterization of the synthesized material and evaluation of its piezocatalytic performance for H2 evolution under ultrasonic irradiation.
Main Results:
- Successfully synthesized tube-shaped g-C3N4.
- The tubular morphology led to enhanced piezoelectric polarization and improved charge separation.
- Achieved a high piezocatalytic H2 evolution rate of 2014.7 µmol g-1 h-1.
- Demonstrated a 2.7-fold enhancement in H2 evolution rate compared to 2D g-C3N4 nanosheets.
Conclusions:
- Tube-shaped g-C3N4 synthesized via a combined hydrothermal and thermal polymerization strategy exhibits superior piezocatalytic activity.
- The enhanced performance is attributed to morphology-enhanced piezoelectric polarization and improved charge separation.
- This tubular g-C3N4 represents a promising catalyst for efficient and sustainable hydrogen production.
More Related Videos
Related Concept Videos
02:50Catalysis
32.1K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
32.1K
01:17Ziegler–Natta Chain-Growth Polymerization: Overview
4.2K
Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta...
4.2K
01:22Heterogeneous Catalysis
108
Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...
108