Name the hydrides which have high potential for hydrogen storage.

Answer

To answer the question regarding the hydrides that have a high potential for hydrogen storage, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Hydrides**:
- Hydrides are compounds formed between hydrogen and other elements. They can be classified into different categories, such as ionic, covalent, and metallic hydrides.

2. **Focus on Metallic Hydrides**:
- Among the various types of hydrides, metallic hydrides are particularly noted for their ability to store hydrogen efficiently. This is due to their favorable hydrogen binding properties.

3. **Properties of Metallic Hydrides**:
- Metallic hydrides can absorb hydrogen gas and release it under specific conditions. They typically release hydrogen only at high temperatures, making them suitable for storage applications.
- Additionally, they occupy less volume compared to other forms of hydrogen storage, which is advantageous for practical applications.

4. **Examples of Metallic Hydrides**:
- Some examples of metallic hydrides that are known for their high potential in hydrogen storage include:
- **Palladium Hydride (PdH)**: Known for its ability to absorb hydrogen gas.
- **Nickel Hydride (NiH)**: Used in various applications for hydrogen storage.
- **Lanthanum Nickel Hydride (LaNi5H6)**: A well-studied hydride for hydrogen storage.
- **Magnesium Hydride (MgH2)**: Has a high hydrogen storage capacity and is being researched for practical applications.

5. **Conclusion**:
- In conclusion, metallic hydrides, such as palladium hydride, nickel hydride, lanthanum nickel hydride, and magnesium hydride, have a high potential for hydrogen storage due to their effective hydrogen binding properties and favorable volume characteristics.