Multi-Oxide Catalyst for Hydrogen Generation
Official patent title
Method of producing hydrogen gas
Arabic title: طريقة لإنتاج غاز الهيدروجين
Invention
Invention
Problem
Borohydrides can store hydrogen chemically, but their uncatalyzed hydrogen-release rates can be slow, while noble-metal catalysts are costly and scarce and high-pressure hydrogen storage creates additional constraints.
Why it matters
A transition-metal composite could support on-demand hydrogen research, but catalyst reuse, copper and manganese release, gas purity, reaction heat, borohydride logistics, residue regeneration, process safety, and economics require independent verification.
Approach
The method reacts a borohydride with water in the presence of MnO2, MgO, and CuO nanoparticles dispersed on g-C3N4 nanosheets to generate hydrogen.
Who may benefit
Potential beneficiaries include hydrogen researchers, chemical-hydride reactor developers, catalyst manufacturers, portable-energy laboratories, and materials teams studying multioxide/carbon-nitride interfaces.
Potential value
The disclosure combines a four-component catalyst composition, separate component-synthesis routes, integration conditions, and a stated hydrogen-generation-rate range at a defined temperature.
Background
Background
Hydrogen is an energy carrier, but compression, liquefaction, transport, and leakage risks complicate its use. Sodium borohydride offers a stable chemical storage route and can release hydrogen through reaction with water. That reaction can be sluggish without a catalyst, while noble metals face cost and abundance constraints. Transition-metal oxides supported on high-area materials are therefore investigated as alternatives. The publication combines manganese, magnesium, and copper oxides on graphitic carbon nitride for catalytic borohydride hydrolysis.
Technology overview
Technology overview
Claim 1 uses a MnO2/MgO/CuO/g-C3N4 catalyst containing 5 to 15 wt. % MgO, 5 to 15 wt. % MnO2, 15 to 25 wt. % CuO, and 55 to 65 wt. % g-C3N4. The oxide nanoparticles are disposed on the nanosheets. Dependent claims define particle and sheet dimensions, ultrasonic mixing followed by heating at 250 to 450° C., separate oxide and C3N4 preparation routes, sodium borohydride as the source, and a hydrogen-generation rate of 850 to 1150 mL min−1 g−1 at 40° C.
Potential applications
Potential applications
- Potential on-demand hydrogen generation from borohydride solutions.
- Catalyst development for chemical-hydride reactors.
- Laboratory evaluation of portable hydrogen-supply concepts.
- Research on MnO2/MgO/CuO interfaces supported by g-C3N4.
Evidence-supported advantages
Evidence-supported advantages
- Uses transition-metal oxides rather than a noble-metal catalyst.
- Defines each component within explicit weight-percentage ranges.
- Provides separate synthesis and integration steps for all components.
- States a hydrogen-generation-rate range at 40° C.
Development stage
Development stage
The patent publication describes catalyst preparation and states a hydrogen-generation-rate range; commercialization was not established, and the reported performance and development stage were not independently verified.
Commercial opportunity
Commercial opportunity
The catalyst could support licensing or joint chemical-hydride reactor development. Commercial evaluation should verify rate reproducibility, catalyst lifetime and recovery, copper and manganese release, hydrogen purity, heat and pressure control, sodium-metaborate management, borohydride regeneration, safe reagent handling, scale-up yield, and delivered-hydrogen cost.
Patent classifications
Patent classifications
WIPO IPC
- B01J23/72Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J23/02Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
CPC
- B01J23/02Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J23/72Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J23/34Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J27/24Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J35/45Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J37/04Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J37/08Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J37/343Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- C01B3/065Non-metallic elements; compounds thereof
- Y02E60/36Reduction of greenhouse gas [GHG] emissions related to energy generation, transmission or distribution
Inventors
Inventors
- First inventorMohamed Nady Abd El-Hameed Ibrahim
- InventorLaila Saad Saied Alqarni
Keywords
Keywords
- hydrogen generation
- borohydride
- MnO2
- MgO
- CuO
- g-C3N4
- hydrolysis
- nanocomposite catalyst
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.