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Image courtesy of Simon Quellen Field via Scitoys.com
DCLEssential Points to Remember
- Creating a hydrogen fuel cell in your kitchen requires simple tools like a popsicle stick, a 9-volt battery with a clip, transparent tape, a glass of water, a volt meter, and platinum-coated nickel wire.
- The process involves cutting and winding the wire, attaching it to the battery clip, immersing the electrodes in water that is affixed to a popsicle stick, and linking everything to a volt meter to measure the electrical output.
- When the battery is briefly connected, it initiates electrolysis, breaking down water into hydrogen and oxygen. Disconnecting the battery and allowing the gases to recombine on the platinum catalyst generates electricity, providing a simple example of how a hydrogen fuel cell operates.
The hydrogen fuel cell stands as one of the most exciting advancements in renewable energy. This technology is capable of producing electricity without pollution, with water being the sole byproduct. Hydrogen fuel cells have already made their way into futuristic public buses, a Boeing airplane, and luxury concept cars.
What about creating one right in your kitchen?
Scitoys offers a fantastic guide on how to construct a functional hydrogen fuel cell using everyday items you likely have at home. The best part? It only takes about 10 minutes, making it an ideal project to engage kids who may have a short attention span while introducing them to the exciting world of renewable energy—perfect for an upcoming science fair.
Additionally, it's a great DIY example of how the fuel cell functions, for those curious about the process. Who wouldn’t want a hydrogen fuel cell placed next to their fridge for some scientific fun?
Steps to Create a Hydrogen Fuel Cell
Materials You'll Need:
Courtesy of Scitoys
- A popsicle stick or any small piece of wood or plastic will work.
- A 9-volt battery clip.
- A 9-volt battery.
- Transparent sticky tape.
- A glass of water.
- A volt meter.
- One foot of platinum-coated nickel wire, or alternatively, pure platinum wire.
Alright, platinum-coated nickel wire might not be something you typically find around the house. However, you can easily order it online for around 15 dollars.
1. Cut and Wind the Wire
Alright. Let's begin. Courtesy of SciToys:
The first step is to cut the platinum-coated wire into two six-inch segments and wind each piece into a small coiled spring, which will serve as the electrodes in our fuel cell. I wrapped mine around the test lead of my volt meter, but a nail, ice pick, or coat hanger works just as well for forming the coils.
2. Prepare the Battery
Now for some delicate handwork...
Next, we cut the leads of the battery clip in half and strip the insulation off the cut ends. Then, we twist the bare wires onto the ends of the platinum-coated electrodes, as demonstrated in the photo. The battery clip will connect to the electrodes, and two additional wires will be attached to the electrodes, which will later be used to link to the volt meter.
3. The Popsicle Stick and Electrodes
Securely tape the electrodes to the popsicle stick. Then, attach the popsicle stick to the glass of water, positioning the electrodes so they are submerged for almost their entire length. Ensure the twisted wire connections stay above the water, leaving only the platinum-coated electrodes in the water.
4. Connect the Volt Meter
Connect the red wire to the positive terminal of the volt meter and the black wire to the negative (or 'common') terminal. At this point, the volt meter should read 0 volts, although a small voltage (like 0.01 volts) may be visible.
5. Voilà, a Hydrogen Fuel Cell
Congrats, you've just created the future in your kitchen, and it took you less time than an episode of The Office. Now, let's put it to use:
To make the fuel cell work, we need hydrogen bubbles to stick to one electrode and oxygen bubbles to stick to the other. It's actually quite simple to achieve this.
We briefly touch the 9-volt battery to the battery clip (there’s no need to clip it on, just a quick connection will do).
When the battery is connected to the clip, it splits the water at the electrodes into hydrogen and oxygen—this is known as electrolysis. You’ll notice the bubbles forming at the electrodes while the battery is attached.
Once we remove the battery, the volt meter should show zero volts again, unless we’re using platinum-coated wire, in which case it will continue to register a voltage, even without the battery connected.
The platinum serves as a catalyst, enabling the hydrogen and oxygen to come back together.
The process of hydrolysis reverses. Instead of using electricity to break the water apart, hydrogen and oxygen unite to form water again, generating electricity in the process.
For a deeper dive into how the battery functions, head over to SciToys. And enjoy having the future of renewable energy right in your kitchen.
