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

Johnson Matthey JM840 Series Catalyst

JohnsonMattheyJM840SeriesCatalystisahigh-performanceplatinumbasedautomotivecatalystdesignedforemissioncontrolinlight-dutyvehicles.ItfeaturesadvancedwashcoattechnologyenhancedthermalstabilityandoptimizedrhodiumdispersionforrobustCOHCandNOxconversionacrossawideroperatingtemperaturewindow.SuitableforEuro6andbeyondemissionsstandardsitdeliversreliabilitydurabilityandconsistentsystemefficiencyunderreal-worlddrivingconditions.
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Features Of Johnson Matthey JM840 Series Catalyst

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

  2. Optimized platinum–palladium bimetallic formulation for enhanced CO and hydrocarbon oxidation efficiency.

  3. Low light-off temperature (T50 < 180 °C) ensuring rapid catalytic activation during cold-start conditions.

  4. Robust resistance to sulfur and phosphorus poisoning under real-world feed gas conditions.

  5. Engineered ceramic monolith substrate with high geometric surface area and low pressure drop.

Typical Applications Of Johnson Matthey JM840 Series Catalyst

  1. Automotive three-way catalytic converters for gasoline-powered light-duty vehicles.

  2. Aftertreatment systems in hybrid electric vehicle (HEV) powertrains with intermittent exhaust flow.

  3. Oxidation catalysts in marine auxiliary engines meeting IMO Tier III emission standards.

  4. Industrial stationary engine aftertreatment for natural gas and LPG-fueled generators.

  5. Refinery flare gas destruction units requiring stable low-concentration VOC oxidation.

Specifications Of Johnson Matthey JM840 Series Catalyst

Chemical TypePt–Pd–Rh trimetallic washcoat on cordierite monolith
Product FormCeramic monolith (honeycomb structure), available in standard canning configurations
AppearanceGray-black, porous ceramic substrate with uniform metallic coating
Primary ApplicationsGasoline engine exhaust aftertreatment; CO/VOC/NOx abatement
Key FeaturesLow light-off temperature, high oxygen storage capacity, sulfur tolerance
BenefitsExtended catalyst life, compliance with Euro 6d / SULEV30 standards, reduced calibration complexity
Storage ConditionsDry, ambient temperature; avoid exposure to moisture or volatile organic solvents
Handling PrecautionsWear nitrile gloves; avoid mechanical impact or dust generation during installation


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