Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Johnson Matthey JM8 Series Catalyst

Johnson Matthey JM8 Series Catalyst is a high-performance automotive three-way catalyst featuring advanced ceria-zirconia oxygen storage and optimized Pd/Rh formulation for superior conversion efficiency, thermal durability, and cold-start emissions control in gasoline engines.
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  • hifull hb 620
  • hifull hb 630
  • hifull hb 620

Features Of Johnson Matthey JM8 Series Catalyst

  1. High thermal stability enabling reliable performance in exothermic reaction environments.

  2. Optimized platinum–palladium bimetallic formulation for enhanced low-temperature activity.

  3. Controlled pore structure providing improved mass transfer and reduced diffusion limitations.

  4. Robust mechanical strength ensuring long service life under industrial cycling conditions.

  5. Low sulfur sensitivity, maintaining activity in feedstocks with trace sulfur impurities.

Typical Applications Of Johnson Matthey JM8 Series Catalyst

  1. Hydrogen purification via selective CO oxidation (CO-PROX) in PEM fuel cell systems.

  2. Ammonia synthesis gas cleanup to remove residual CO and CO₂ prior to methanation.

  3. Hydrogen-rich stream polishing in refinery hydrogen networks.

  4. On-site hydrogen generation units requiring high-purity H₂ output.

  5. Chemical intermediate production where precise CO conversion control is critical.

Specifications Of Johnson Matthey JM8 Series Catalyst

Chemical TypePt–Pd on high-surface-area alumina support
Product FormExtruded cylindrical pellets (3 mm diameter × 3–5 mm length)
AppearanceGray-black free-flowing granules
Primary ApplicationsSelective CO oxidation, hydrogen stream purification
Key FeaturesLow-temperature activity, sulfur tolerance, thermal resilience
BenefitsExtended catalyst life, reduced regeneration frequency, consistent purity output
Storage RequirementStore in sealed containers under inert atmosphere at ambient temperature
Handling PrecautionAvoid exposure to air during unpacking; use nitrogen purge for loading


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