High-Frequency Metal-Oxide Dielectric Material
Official patent title
Nanocomposite material for energy storage devices
Arabic title: مادة مركبة نانوية لأجهزة تخزين الطاقة
Invention
Invention
Problem
Energy-storage and high-frequency electrical materials need improved conductivity and dielectric behavior, while some oxide synthesis routes remain complex or energy intensive.
Why it matters
A multi-oxide nanocomposite with controlled conductivity and dielectric response could support material screening for capacitors, semiconductors, and energy-storage components.
Approach
The method forms a MoO3@Al2O3–MgO nanocomposite from molybdate, aluminum nitrate, magnesium acetate, sucrose, water, and nitric acid through carbonization, grinding, and high-temperature calcination. The material is pressed into a tablet for frequency-dependent electrical characterization.
Who may benefit
Potential beneficiaries include advanced-ceramics producers, energy-storage researchers, dielectric-material laboratories, semiconductor developers, and electrical-component manufacturers.
Potential value
The disclosure combines three metal-oxide components in a defined synthesis and reports high-frequency AC conductivity, dielectric constant, and dielectric-loss ranges.
Background
Background
Renewable power sources such as solar and wind are intermittent, increasing demand for storage technologies including supercapacitors, batteries, and fuel cells. Nanomaterials can offer tunable surface, transport, and dielectric properties relevant to these devices. Magnesium aluminate has thermal, mechanical, chemical, and electrical stability, while doping or composite formation can modify its response. The publication combines magnesium and aluminum oxides with molybdenum oxide to produce a material evaluated primarily through frequency-dependent conductivity and dielectric measurements.
Technology overview
Technology overview
Ammonium molybdate, aluminum nitrate, magnesium acetate, and sucrose are combined with water and nitric acid. Heating at 150–220 °C forms a carbonized product, which is ground and calcined at 700–800 °C. The powder is pressed into a tablet and coated with silver paste for measurement. The publication reports AC conductivity, dielectric constant, dielectric loss, and impedance behavior across frequency, including values at 6 MHz.
Potential applications
Potential applications
- Candidate dielectric material for high-frequency electrical components.
- Nanocomposite screening for capacitor and energy-storage research.
- Metal-oxide ceramic tablets for impedance and conductivity studies.
- Semiconductor-material research requiring frequency-dependent electrical response.
Evidence-supported advantages
Evidence-supported advantages
- The synthesis defines precursor concentrations, heating, grinding, and calcination conditions.
- Molybdenum, aluminum, and magnesium oxides are integrated in one material.
- AC conductivity, dielectric constant, dielectric loss, and impedance are characterized.
- The claims define a tablet geometry and silver-paste measurement configuration.
Development stage
Development stage
Laboratory synthesis and frequency-dependent electrical characterization are described; complete energy-storage device performance was not reported, and the development stage was not independently verified beyond those reported studies.
Commercial opportunity
Commercial opportunity
The material may interest dielectric, ceramic, and energy-storage partners. Development should verify scalable phase control, calcination energy, pellet and coating reproducibility, humidity and temperature stability, device integration, capacitance, equivalent-series resistance, energy and power density, cycling life, safety, and comparative manufacturing cost.
Patent classifications
Patent classifications
WIPO IPC
- C01G39/00Compounds containing metals not covered by subclasses C01D or C01F
CPC
- C01G39/006Compounds containing metals not covered by subclasses C01D or C01F
- C01P2004/64Indexing scheme for structural and physical aspects of solid inorganic compounds
- C01P2006/80Indexing scheme for structural and physical aspects of solid inorganic compounds
- C01P2006/40Indexing scheme for structural and physical aspects of solid inorganic compounds
Inventors
Inventors
- First inventorBabiker Yagoub Elhadi Abdulkhair
- InventorMohamed Khairy Abdel Fattah Omran
Keywords
Keywords
- nanocomposite
- molybdenum oxide
- magnesium aluminate
- AC conductivity
- dielectric constant
- dielectric loss
- energy storage
- impedance
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.