Organic-Compounds/Hydrides/Coordination-Complexes Catalysts TRIZ Cases

Using a ketone as an electron donor decouples molecular weight control from catalyst deactivation, maintaining high productivity.

Metallocporphyrin complexes enable triplet-triplet annihilation upconversion to initiate polymerization with visible light.

Binuclear chromium catalyst suppresses wax formation to achieve high selectivity for 1-hexene and 1-octene production.

A mixed metallocene catalyst composition combines two distinct catalysts to produce polyolefins with wide molecular weight distribution.

Tertiary amine and organometallic catalyst accelerate silylated polymer crosslinking while maintaining storage stability.

Large cobalt crystallites in high porosity supports convert carbon monoxide to liquid hydrocarbons while suppressing methane selectivity.

A quaternary ammonium salt catalyst stabilizes asymmetric cyclopropanation reactions under basic conditions.

Phosphine-ligated transition metals convert nitrogen to ammonia under ambient conditions, bypassing the high energy consumption of Haber-Bosch.

Switching to direct condensation with protic ionic salts eliminates harmful by-products and reduces solvent use in polyether production.

Monodentate ligands coordinate stereogenic metal centers to resolve racemization bottlenecks in enantioselective metathesis.

Solid-state reaction of nickel and tungsten compounds creates a non-amorphous bulk catalyst that matches trimetallic activity while simplifying production.

Alkyl-substituted cyclopentadienyl ligands reduce melt elasticity in high molecular weight polyethylene, improving film tear strength and surface finish.

A transition metal dimer complex catalyzes carbon-carbon and carbon-heteroatom coupling reactions with high stability.

Replacing halogen precursors with oxalate compounds eliminates corrosion and allows ammonia decomposition at 450-650 °C.

Mixed equivalent weight ionomers in fuel cell ink reduce mud cracking, enabling rapid drying without increasing manufacturing costs.

A metal complex with heterocyclic ligands supported on conductive carbon enhances oxygen reduction capability.

Adding a Lewis base to the mixing section reduces rag layer formation and accelerates phase settling, restoring continuous operation.

A palladium catalyst with SPhos ligands enables light-assisted decarboxylative cross-coupling of heteroaromatic rings.

A protonated dimeric ionic liquid serves as a secondary ionomer in fuel cell catalyst layers to boost proton conductivity.

Solid catalyst components with 9-(alkoxymethyl)-9H-fluorene donors boost olefin polymerization activity.

Supported hybrid metallocene catalyst produces high-density polyethylene with long chain branched structures.

Bifluoride catalysts enable mild polymerization of fluoro-silyl monomers, eliminating purification steps required by basic catalysts.

Silane compound with silyl hydride bond hydrogenates conjugated diene polymers using an organic metal catalyst system, eliminating decalcification steps.

Chain transfer agent controls molecular weight and chain shape in carbon dioxide copolymerization.

Organic phosphine oxide modifies palladium surface properties to maintain catalytic activity while silver enhances selectivity against runaway reactions.

N2-phosphinyl guanidine chromium complexes overcome low selectivity in conventional systems to produce high yields of C6 and C8 olefins.

A chromium catalyst system with branched alkylene linkers enhances catalytic activity and selectivity for alpha-olefins.

Amine bases dissolve organomonophosphites to extract chlorine impurities, preventing hydrolysis and reducing purification time.

Synthesizing high-purity lithium difluorophosphate crystals via controlled reaction and purification steps.

A single-stage alkaline oxidative pretreatment process uses a metal-ligand catalyst with dual oxidants to break down lignocellulosic biomass.

Lewis acid catalyzes carbonyl-ene reaction on vinylidene terminated polyolefins to form hydroxyl functionalized polymers.

Sulfonated triorganophosphine ligands prevent alkyl-aryl exchange and reactor fouling while enhancing rhodium recovery.

Metalated MOF catalysts convert lignin into water-soluble polyacids, avoiding high-energy depolymerization.

A spherical magnesium halide adduct forms a catalyst component with uniformly distributed active sites.

N2-phosphinyl amidine chromium salt complex improves ethylene oligomerization efficiency and selectivity for alpha olefin production.

Phenylene bridge replaces silicon to resolve low activity and poor copolymerization, achieving densities below 0.910 g/cc.

Adjusting C8 internal olefin concentration in vaporizer tails stream reduces rhodium loss during continuous liquid recycle hydroformylation.

Ion exchange and precipitation treat effluent streams to recover at least 80 mole percent of metal ions, reducing residuals below 50 ppm.

Primary alcohol ligands modify double metal cyanide catalysts to boost turnover frequencies and numbers for cost-effective epoxide polymerization.

A zinc ligand complex catalyzes condensation reactions in silicon-containing base polymers.

Ortho-substituted P-N-P ligands direct chromium catalysts to produce terminal hexenes and octenes, reducing internal olefin contamination.

Using n-pentane solvent limits Tebbe complex solubility to 0.5 mmol/g, enabling high purity precipitation that prevents product yellowing.

An alumina-modified silica catalyst improves aromatic saturation while suppressing cracking activity during hydrocarbon processing.

Solvent-free solid-state synthesis produces MOF-based non-PGM electrocatalysts, reducing material costs while maintaining catalytic activity for fuel cells.

Composite metal sulfide catalysts reduce sulfur and nitrogen content in heavy oils while lowering molecular weight to improve API gravity.

Chelating polymers synthesized within carrier pores enhance metal dispersion, resolving activity loss from strong metal-support interactions.

Demethylating methionine methyl esters with hydrogen sulfide anion recovers methane thiol for reuse, reducing hazardous chemical handling.