Iron Cyanides TRIZ Cases

A binder-free carbon nanotube network disperses nanoscale active particles to sustain high energy density and capacity at ultra-fast charging.

Controlled formic acid decomposition and staged nucleation produce Prussian White with low vacancies, tunable particle size, and high tap density.

Alkali-metal doping and pH control help Prussian-blue cathodes resist moisture uptake and preserve cycling and rate performance after storage.

Controlled Prussian white particle size and surface area reduce moisture-driven Na-loss and capacity fading in sodium-ion cathodes.

Simultaneous cyanide and metal-salt injection under inert, pH-controlled co-precipitation yields uniform Prussian Blue cathode particles.

Boron doping in a Prussian blue cathode improves structural stability and cycle life while avoiding borohydride-related hydrogen risks.

A carbon-coated, water-free Prussian white cathode improves conductivity, thermal stability, and sodium-ion battery cycle life.

Two-stage manganese sulfate precipitation controls Prussian white particle size to balance compaction density, rate capability, and production efficiency.

Cyanide-bridged Fe(III)-Co(II)/Ni(II) networks raise molecular magnet Curie temperature above 253 K while preserving ferromagnetic ordering.

A surface-to-core A-element gradient in prussian blue improves water resistance, storage stability, and cycle life without sacrificing capacity.

Nonionic surfactants, vacuum drying, and sodium alkoxide soaking cut crystal water in Prussian blue cathodes to improve capacity and ion transport.

Combining sodium and potassium ions raises iron hexacyanide solubility beyond single-salt limits, increasing aqueous energy storage density.

Combining sodium and potassium iron hexacyanides raises stable aqueous concentration beyond single-salt limits, boosting flow battery energy density.

Visible-light-activated Prussian blue coagulates sub-20 μm microplastics with easy residue recovery and lower water toxicity.

Salt exchange with nitrogen-organic cations creates hexacyanoferrates with tunable redox potential and organic-solvent solubility.

Antimony composite coatings on aluminum collectors prevent corrosion and enhance cycling stability in sodium-ion batteries.

Combining redox active phenothiazines depresses melting points to boost solubility, bypassing time-consuming synthesis of new compounds.

Chelating agents react with transition metal cyanide coordination compounds to reduce surface reactivity and enhance air stability.

Acid-containing chelating agents react with transition metal cyanide coordination compounds to form stable complexes.

Synthesizing metal cyanometallates with high A-ion concentrations increases available interstitial positions for alkali ions.

Prussian blue electrodes in desalination cells intercalate ions while reducing calcium carbonate buildup, enhancing system stability.

Polyethylene glycol solvent extends sodium nitroprusside shelf life beyond two years by scavenging free radicals and sequestering oxidized iron.

Segmented aging reactors grow metal cyanometallate particles for non-aqueous sodium-ion batteries, overcoming aqueous electrolyte energy density limits.

A polyamide resin composition uses a metal cyanide salt to enhance thermal aging resistance and gas barrier properties.

Dehydration annealing removes zeolitic water from Prussian blue analogue electrodes to enable stable cycling.

Polymerizing iron, lithium, and phosphate ions with hydroxy acid and polyol yields carbon-supported LiFePO4 particles.

Metal plating on the anode eliminates slow sodiation kinetics and dissolution, enabling higher voltage operation and increased energy density.