Catalyst Protection TRIZ Cases

See how an oily fiber-scattering inhibitor on inorganic fibers suppresses thermal decomposition

A Si-containing inorganic film retains ionic liquid in the catalyst layer, sustaining low-humidity output and limiting catalyst coarsening.

Wet-gel titanium doping and controlled sol-gel processing create pentahedral Ti silica catalysts for selective propylene oxide production.

A fluorocarbon overlayer protects a Pd/Mg-Sc hydrogen-chromic film from water corrosion while preserving fast reversible optical switching.

Melting and resolidifying wax in a metal powder coating improves alloy coverage uniformity on nickel, cobalt, copper, or iron bodies.

A thin ALD overcoat protects platinum nanoparticles from high-temperature sintering while preserving alkane conversion and alkene selectivity.

High-porosity fluorided silica-coated alumina supports boost metallocene adsorption and catalytic activity, cutting catalyst usage in olefin polymerization.

Phenothiazine free radicals protect the metal center from self-polymerization, improving cyclic carbonate catalyst activity, stability, and selectivity.

Silica coating strengthens acid function in reforming catalysts while limiting high-temperature metal aggregation and activity loss.

During storage, thermoplastic encapsulation separates the platinum-group catalyst from silicone components, enabling repeatable release and one-part snap cure.

Pyrolyzed waste plastics form porous catalyst carriers that support heavy-hydrocarbon conversion while reducing disposal impact.

Microcapsule hydrosilylation catalyst particles prevent premature curing and maintain catalytic activity at temperatures exceeding 200°C.

Optimized mesoporous volume and low macroporosity balance reagent diffusion with mechanical strength.

Deaerated liquid hydrocarbon preserves reduced Fischer-Tropsch catalyst activity by blocking air contact, eliminating oxidation risks.

A mesoporous shell layer encapsulates cobalt active components on a silica carrier to prevent aggregation and shedding during synthesis.

Porous inorganic material covers carbon nanotubes to prevent metal elution and aggregation during sintering.

Seeded sulfidation of metal oxide precursors creates layered metal sulfides with controlled curvature and high defect density.

Controlled precipitation creates a bimodal pore structure that resolves the trade-off between porosity and mechanical strength in hydrotreating catalysts.

A substrate monolith integrates a particulate metal oxide zone to trap volatilized platinum group metals before they reach the SCR catalyst.

Copper promoter controls nickel crystal size during deposition, resolving contradictions between high loading and filterability.

Nests water-sensitive catalysts inside hydrophobic polymer droplets to prevent hydrolysis and ensure uniform distribution during polymerization.

Atomic layer deposition forms a calcined protective shell with channels that stabilize base metal catalysts against leaching and sintering.

A hybrid Fe-Co catalyst on nitrogen-doped carbon narrows the performance gap with platinum while reducing loading to 0.06 mg/cm2.

A homogeneous catalyst composition using a titanium compound and polyglycol oligomer selectively hydrogenates conjugated diene polymers.

A honeycomb structural body features irregularities on its outer peripheral face to mechanically interlock with sealing material.

Oxidized ruthenium species on platinum nanoparticles increase methanol oxidation activity while reducing the quantity of expensive precious metals required.

Bimodal pore distribution in calcined alumina supports enhances reagent diffusion to active nickel sites while maintaining mechanical strength.

Carbon coatings on metal catalyst particles prevent cation migration onto acidic sites, maintaining stability during dimethyl ether production.

Coating palladium particles with an O=X compound suppresses decomposition during direct hydrogen peroxide production, improving efficiency.

Sequential dewaxing and temperature-controlled oxidation remove hydrocarbons from spent cobalt catalysts, preventing thermal runaway during regeneration.

A hydrocarbon resin slurry coats fine nickel powder to prevent contamination from incompatible protective materials while ensuring homogeneous coverage.

Gas-phase activation prevents re-oxidation and fines generation during iron catalyst processing.

Controlled water content prevents hygroscopicity, ensuring reliable catalytic activity after long-term storage.

Tableting a precipitated Cu-Al catalyst increases mechanical stability without reducing pore volume or risking contamination from organic pore formers.

Phosphoric acid treatment on titanium oxide blocks arsenic and potassium poisoning, allowing high-silica zeolite to maintain NOx reduction at 350 °C.

Diamine and carboxylic acid compounds stabilize silver ions in solution, preventing premature precipitation caused by light sensitivity during chemical plating.

Porous refractory oxide overcoat captures phosphorus and zinc poisons before they reach precious metal washcoats.

Superficial coating on catalyst grains reduces dust emission while maintaining reactor efficiency and preventing downstream blockages.

Non-contact liquid ejection prints details on fiber mats, preventing inner outer side mistakes without altering dimensions.

Sol-gel coating creates random bumps and dents to maintain porosity under high temperature and humidity.

A photocatalyst laminate uses core-shell nanoparticles to shield substrates from UV degradation while maintaining surface hydrophilicity.

Introducing 0.3 wt% cobalt to a nickel-silica-alumina catalyst boosts activity by 40% while maintaining performance in feeds exceeding 100 ppm sulfur.

Uniform face coating on monolithic substrates prevents back pressure buildup by reducing soot deposits at cell entrances, extending operational life.