US 12421127 B1Patent grantUnited States

Iron-Oxide Nanocomposite for Energy Storage

Official patent title

Method of manufacturing a nanocomposite

Arabic title: طريقة لتصنيع مركب نانوي

Invention

Invention

Problem

Graphitic-carbon-nitride and metal-oxide composites can agglomerate, have limited surface area, or require processing that is difficult to scale reproducibly.

Why it matters

A controlled porous composite could support electrode and functional-material research, provided device-specific electrochemical performance and manufacturing economics are demonstrated.

Approach

The method first forms and calcines an Fe2O3/MgAl2O4 oxide solid from magnesium, aluminum, and iron salts, then grinds it with urea and heats it again to introduce graphitic C3N4. The result has defined phase ratios and pore characteristics.

Who may benefit

Potential beneficiaries include electrode-material researchers, supercapacitor laboratories, mixed-oxide producers, carbon-nitride specialists, and nanomaterial process-development teams.

Potential value

The two-stage thermal route separates spinel-oxide formation from carbon-nitride introduction and yields a structurally characterized porous three-component nanocomposite.

Background

Background

Energy-storage electrodes benefit from accessible surface area, conductivity, chemical stability, and well-dispersed electroactive phases. Graphitic carbon nitride can be combined with metal oxides, but conventional syntheses may cause agglomeration, poor dispersion, or low porosity. The publication addresses manufacturing of a g-C3N4/Fe2O3/MgAl2O4 composite through sequential solution processing, calcination, grinding, and urea treatment. It describes phase and pore characterization, not a complete supercapacitor. The supplied evidence contains no capacitance, energy density, power density, resistance, or cycling results.

Technology overview

Technology overview

Magnesium, aluminum, and ferric salts are combined in an aqueous solvent containing menthol or dextrose. After at least 99.5 wt.% solvent removal, the solid is ground and calcined at 600–800 °C for 2–4 hours. The oxide is then ground with urea and heated at 550–650 °C for 15 minutes to 1.5 hours, producing g-C3N4, Fe2O3, and MgAl2O4. XRD, TEM, SAED, HRTEM, and nitrogen sorption characterize phase and porosity.

Potential applications

Potential applications

  1. Candidate electrode material for supercapacitor research.
  2. Porous mixed-oxide and carbon-nitride materials studies.
  3. Phase-controlled nanocomposite manufacturing research.
  4. Functional-material screening for electrochemical applications.

Evidence-supported advantages

Evidence-supported advantages

  1. The process uses sequential oxide formation and carbon-nitride introduction.
  2. Ball milling and hot pressing are not required in claimed embodiments.
  3. Composition, phase spacings, surface area, and pore characteristics are specified.
  4. Multiple microscopy, diffraction, and sorption methods are described.

Development stage

Development stage

Laboratory synthesis and structural and pore characterization are described; electrode fabrication, complete device testing, scale-up, and independent application validation are not established.

Commercial opportunity

Commercial opportunity

The route may interest specialty electrode-material producers. Commercial evaluation requires reproducible yield and phase purity, urea and furnace economics, powder safety, scale-up, electrode fabrication, electrolyte compatibility, and independent full-cell capacitance, energy, power, resistance, self-discharge, and cycle-life benchmarking. Energy-storage performance is not established by this record.

Patent classifications

Patent classifications

WIPO IPC

  • C01F5/38Compounds of beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium or rare-earth metals
  • B82Y30/00Specific uses or applications of nanostructures; measurement or analysis of nanostructures; manufacture or treatment of nanostructures

CPC

  • B82Y30/00Specific uses or applications of nanostructures; measurement or analysis of nanostructures; manufacture or treatment of nanostructures
  • C01F7/441Compounds of beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium or rare-earth metals
  • C01F5/38Compounds of beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium or rare-earth metals
  • C01B21/0605Non-metallic elements; compounds thereof
  • C01G49/0018Compounds containing metals not covered by subclasses C01D or C01F
  • C01P2002/72Indexing scheme for structural and physical aspects of solid inorganic compounds
  • C01P2002/01Indexing scheme for structural and physical aspects of solid inorganic compounds
  • C01P2004/04Indexing scheme for structural and physical aspects of solid inorganic compounds
  • C01P2004/64Indexing scheme for structural and physical aspects of solid inorganic compounds

Inventors

Inventors

  • First inventorMohamed Khairy Abdel Fattah Omran
  • InventorBabiker Yagoub Elhadi Abdulkhair

Keywords

Keywords

  • graphitic carbon nitride
  • iron oxide
  • magnesium aluminate
  • nanocomposite
  • supercapacitor
  • calcination
  • porous material
  • electrode research

Patent document and drawings

Patent document and drawings

The patent publication is mapped to this record. Patent drawings remain within that publication; no separately cleared public media package has been supplied.