Method of producing porous metal oxide films using template assisted electrostatic spray deposition

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This patent describes a novel method for producing porous metal oxide films on a substrate using template-assisted electrostatic spray deposition (ESD). The method allows for precise control over the film's pore size, distribution, and connectivity by incorporating different organic templates into the spray solution. The process can create mesoporous, macroporous, or hierarchically structured films with high surface area and well-defined pore morphology, suitable for a wide variety of technical applications.

Use CasesContent extracted from patent full text and abstract with AI.

• Catalysts for chemical reactions, benefiting from high surface area
• Electrode materials for batteries and supercapacitors due to improved ion transport
• Gas or chemical sensors with enhanced sensitivity and response because of high porosity
• Separation membranes for filtration or purification
• Photoelectrodes for solar energy or photocatalysis
• Biomedical surfaces for drug delivery or cellular interfaces
• Functional coatings for optics, electronics, or anti-corrosive surfaces

BenefitsContent extracted from patent full text and abstract with AI.

• Ability to produce films with tailored pore size (mesoporous and macroporous) and hierarchical structures
• Improved control over film morphology compared to traditional methods like dip-coating or spin-coating
• Compatible with a range of metal oxides and substrate materials
• Scalable technique suitable for large or micro-structured substrates
• Produces coatings with very high porosity (>80%), enhancing surface-dependent properties
• Potential for concurrent deposition and thermal treatment, improving process efficiency
• Versatility in tuning electrical, chemical, and transport properties through pore engineering

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The present invention relates to a method of producing porous metal oxide films on a substrate using template assisted electrostatic spray deposition (ESD). Thereby it is possible to produce both mesoporous and macroporous films which have a predefined pore morphology. In addition hierarchically structured meso- and macroporous films can be produced. The present invention also concerns the produced porous films and their use in catalysis, power storage, sensing and compound separation.