Heterogenous Catalyst Chemical Elements TRIZ Cases

Removing titanium dioxide and zirconium dioxide prevents unwanted branched oligomers while maintaining structural stability.

An oxide support stabilizes the perovskite-oxide active phase, resolving structural degradation during repeated reduction-oxidation cycles.

Earth-abundant perovskite oxides catalyze both oxygen and hydrogen evolution reactions, eliminating expensive precious metal requirements.

Segmented catalyst packets decouple dispensing from time to maintain uniformity during high-speed charging.

Metal oxide supports react with alkali metal promoters to form stable oxides, preventing evaporation and maintaining carbon efficiency.

A catalyst support material combines anatase titania with low molecular weight silica and molybdenum oxide to form a stable composite mixture.

A mesoporous oxide catalyst with tantalum and niobium improves 1,3-butadiene production from ethanol feedstock.

Zinc oxide supported on alumina or silica replaces expensive platinum systems, lowering process costs while maintaining high olefin selectivity.

A copper-free iron spinel catalyst enables carbon dioxide hydrogenation through carburization activation.

Incorporating ammonium zirconium carbonate into titania extrudates improves crush strength and mechanical stability for Fischer-Tropsch synthesis applications.

A carbon-supported iron-copper-sulfur catalyst enhances nitrogen reduction activity at the cathode during electrochemical ammonia synthesis.

InA(ZnO)m layered oxides separate charge carriers spatially to reduce recombination losses while achieving efficient hydrogen evolution rates.

A nickel-phosphate catalyst enables stable oligomerization of light hydrocarbons at temperatures exceeding 500°C.

Polymodal particle size distribution resolves the trade-off between catalytic activity and washcoat adhesion in selective catalytic reduction systems.

Doping tantalum oxide with magnesium or calcium suppresses by-product formation and extends catalyst service life during ethanol-to-butadiene production.

Selective extraction recovers polyoxometalate catalysts during formic acid separation, reducing production costs by preventing catalyst loss.

Composite oxide catalysts stabilize performance and reduce deep oxidation products during oxidative coupling of methane.

A process for preparing Fischer-Tropsch catalysts using an organic compound additive and controlled calcination to enhance active phase dispersion.

A trimetallic NiMoW catalyst on alumina reduces sulfur to 10 ppm under moderate pressure, avoiding high-energy conditions.

Egg-shell palladium catalyst resists arsenic and water poisoning in pyrolysis gasoline, extending operational life.

Zirconium iron catalyst promotes carbide formation to extend carbon chain growth, increasing C5+ hydrocarbon yield at high flow rates.

Sequential precipitation of bismuth molybdate cores improves acrylonitrile yields while minimizing hydrogen cyanide byproduct formation.

Controlling hydrocarbon concentration prevents reactor blockage during butadiene production, ensuring stable operation.