What is the anode in a hydrogen fuel cell?
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What is the anode in a hydrogen fuel cell?
They produce electricity and heat as long as fuel is supplied. A fuel cell consists of two electrodes—a negative electrode (or anode) and a positive electrode (or cathode)—sandwiched around an electrolyte. A fuel, such as hydrogen, is fed to the anode, and air is fed to the cathode.
What reaction happens on the anode of a hydrogen fuel cell?
1.2 Fuel Cell Background. The fuel cell reaction of interest for most PFSA-based PEM systems is the hydrogen–oxygen reaction. On the anode side, hydrogen is oxidized to form two protons and two electrons. The protons conduct through the PFSA membrane, while the electrons travel outside the cell to drive a load.
Which is produced during h2 O2 fuel cell?
Operation of a Hydrogen Fuel Cell In a fuel cell, an oxidizing agent (or oxygen) is made to flow through a fuel (hydrogen). Hydrogen and oxygen combine to form water and generate heat.
What does the anode of a fuel cell collect?
The anode (negative electrode) receives the hydrogen and the cathode (positive electrode) collects the oxygen. Fuel cell technology is twice as efficient as combustion in turning carbon fuel to energy. Such a wealth of fuel would provide an almost unlimited pool of clean energy at relatively low cost.
What is fuel cell H2 O2 fuel cell?
In a fuel cell, hydrogen and oxygen are combined to generate electricity, heat, and water. The protons pass through the porous electrolyte membrane, while the electrons are forced through a circuit, generating an electric current and excess heat.
Which of the following is used as an electrolyte in an H2 O2 fuel cell?
Explanation: The general design of the H2-O2 fuel cell consists of porous carbon electrodes containing suitable catalysts (generally finely divided platinum and palladium) incorporated in them. Concentrated KOH or NaOH solution is placed between the electrodes to act as the electrolyte.
What is the net reaction in H2 O2 fuel cell?
2H2(g)+O2(g)→2H2O(l)
What happens to hydrogen molecules in a hydrogen oxygen fuel cell?
In a fuel cell, hydrogen and oxygen are combined to generate electricity, heat, and water. A typical fuel cell works by passing hydrogen through the anode of a fuel cell and oxygen through the cathode. At the anode site, a catalyst splits the hydrogen molecules into electrons and protons.
Which of the following reaction occurs at cathode in H2 O2 fuel cell?
| Name | IUPAC Official Name | |
|---|---|---|
| A | Unnilunium | i |
| B | Unniltrium | ii |
| C | Unnilhexium | iii |
| D | Unununnium | iv |
How does hydrogen become oxygen?
Electrolysis is the process of using electricity to split water into hydrogen and oxygen. This reaction takes place in a unit called an electrolyzer.
What is the electrolyte in a hydrogen fuel cell?
Alkali fuel cells operate on compressed hydrogen and oxygen. They generally use a solution of potassium hydroxide (chemically, KOH) in water as their electrolyte.
What are H2 anode and cathodes?
Oxygen is at cathode and hydrogen is at the anode. Potassium hydroxide solution electrolyte is used in. H2−O2. fuel cell.