Which consequence results when catalytic hydrogenation experiences oxygen contamination?

💡 Explanation

Catalyst poisoning occurs because oxygen strongly adsorbs to the catalyst's surface, blocking hydrogen binding sites, inhibiting the hydrogenation reaction; therefore, catalytic activity plummets rather than improves, and it's global not specific.

• Which mechanism dictates hydrogen atom's wave function shape?
• Which field effect causes diminished gate control in gallium-nitride HEMTs?
• Which outcome results when extremely high density stars cause acute spacetime curvature?
• Which outcome reduces data readout accuracy when using a Coherent anti-Stokes Raman Scattering (CARS) microscope?
• Which outcome occurs when fuel mixture lacks confinement during inertial fusion?
• Which mechanism limits gate oxide thickness reduction in MOSFET transistors when targeting higher operating speeds?