Within a hydrogen fuel cell, which outcome prematurely halts electricity production?

💡 Explanation

Platinum catalyst surface poisoning occurs because even trace amounts of adsorbed carbon monoxide strongly inhibit hydrogen oxidation reaction, thus the cell voltage collapses rapidly rather than maintaining an optimal reaction condition because poisoning blocks catalytic sites.

• Which phenomenon leads to decreased hydrogen production efficiency in a Haber-Bosch reactor operating at higher temperatures?
• Which phenomenon decreases when a fluid's temperature increases, according to the Arrhenius equation?
• Which inefficiency arises when an irreversible refrigeration cycle cools materials?
• Which outcome occurs when cooling molten steel too rapidly?
• Which mechanism reduces steel rebar strength during rapid heating?
• Which consequence results when nonane undergoes incomplete combustion?