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<h3>Safety</h3>
<a href=https://carsinspections.com/transmission/how-to-diagnose-a-car-transmission-problem/>https://carsinspections.com/transmission/how-to-diagnose-a-car-transmission-problem/</a>
<li><b>Metal hydrides:</b> These materials can absorb and release hydrogen, offering a safer and more compact storage solution, but they can be heavy and expensive.</li>
<li><b>Photoelectrochemical (PEC) water splitting:</b> As mentioned earlier, PEC water splitting uses sunlight to directly split water molecules. This is a potentially renewable and sustainable hydrogen production method.</li>
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