Nanomaterials for Clean Energy: Hydrogen Production & Carbon Capture

Global Energy Challenges

• ⚠️ Global warming is a critical issue driven by rising CO2 concentrations from fossil fuels, leading to increased temperatures and environmental disasters.
• 🌊 Excessive CO2 absorption by oceans causes acidification, negatively impacting marine life.
• 📈 Current and projected energy demands are immense, requiring sustainable solutions beyond traditional fossil fuels.

Hydrogen as a Clean Energy Solution

• 💡 Hydrogen is a promising clean fuel due to its zero CO2 emissions upon combustion, high energy density, and potential for production from abundant seawater.
• ❌ Existing hydrogen production methods, like those from natural gas, are CO2-intensive, while water electrolysis for green hydrogen is costly due to high purity water and expensive catalysts.
• 💧 The scarcity of high-purity water and the significant energy required for desalination pose major obstacles to widespread water electrolysis for hydrogen.

Advanced Nanomaterials for Sustainable Energy

• 🔬 Researchers are developing novel catalysts to efficiently split seawater into hydrogen using solar energy, addressing the limitations of current technologies.
• 🛠️ An integrated approach combines photocatalysis, fuel cells, energy storage, and carbon capture/conversion to create a comprehensive clean energy system.
• 🌱 Graphitic carbon nitride, an organic semiconducting nanomaterial, is being engineered to improve its properties, such as introducing nanoporosity and tuning electronic conductivity, for enhanced seawater splitting efficiency.