Hydrogen Fuel Cell (PEM)

2H₂ + O₂ → 2H₂O

Ikhtisar

In a proton exchange membrane (PEM) fuel cell, hydrogen is oxidized at the anode and oxygen is reduced at the cathode, separated by a Nafion membrane. Protons pass through the membrane while electrons flow through an external circuit, producing electricity, water, and heat. Efficiency is 40–60%, roughly double that of combustion engines.

Peserta

Peran	Zat	Koefisien	Keadaan
Produk	Water H₂O	2	(l)

Contoh Sehari-hari

Toyota Mirai and Hyundai Nexo are hydrogen fuel cell cars that emit only water vapor from their tailpipes.

Pentingnya dalam Industri

Fuel cells power buses, forklifts, data center backup, and submarines. Global fuel cell revenue exceeds $5 billion and is growing rapidly.

Sifat

Jenis: Electrochemical
Dapat Dibalik: Ya
Energi: Eksoterm
ΔH: -572,0 kJ/mol
Katalis: Platinum on carbon

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Frequently Asked Questions

What is the equation for Hydrogen Fuel Cell (PEM)?

The balanced equation is: 2H₂ + O₂ → 2H₂O.

What type of reaction is Hydrogen Fuel Cell (PEM)?

Hydrogen Fuel Cell (PEM) is a electrochemical reaction. It is reversible under certain conditions.

Is Hydrogen Fuel Cell (PEM) exothermic or endothermic?

Hydrogen Fuel Cell (PEM) is exothermic (releases energy). The enthalpy change (ΔH) is -572.0 kJ/mol.

What conditions are needed for Hydrogen Fuel Cell (PEM)?

This reaction requires a catalyst (Platinum on carbon).