High Purity Porous Alumina: Properties, Applications & Top Supplier 2026
Release time:
2026-09-05
Developed by the R&D team of Jinghuang Nanomaterials with 12+ years of production experience, this guide combines 2026 latest industry data to explain all key information about porous alumina. It covers specification selection, application scenarios, quality comparison and common questions, helping you pick the right product for your project.
📋 Overview
This guide is designed for researchers, procurement managers and engineers who need accurate, up-to-date information about porous alumina, with practical insights from real production and application testing.
What Is Porous Alumina?
Porous Alumina is nanostructured aluminum oxide with controlled interconnected pore networks. It features adjustable pore size, high specific surface area and excellent thermal and chemical stability, making it a critical material for many advanced industrial and research applications. In practice, we produce porous alumina with pore sizes ranging from 2nm to over 100nm to meet diverse customer requirements.
Q: How is porous alumina different from regular alumina?
A: Unlike dense regular alumina which has almost no internal voids, porous alumina has a highly developed pore structure that delivers a 10-100x higher specific surface area. Actual testing from our production line shows high-quality porous alumina can reach a maximum surface area of 300 m²/g, ideal for adsorption and catalysis.
How To Select The Right Porous Alumina
Based on years of customer application cases, follow these simple steps to narrow down your porous alumina specification:
- Define your required pore size category: micro-pores (<2nm) for gas separation, meso-pores (2-50nm) for catalysis, macro-pores (>50nm) for filtration.
- Confirm purity requirement: 99.9% to 99.99% purity for electronic and research applications, 99% for general industrial use.
- Choose your required format: powder, pellet, or membrane to match your equipment setup.
- Request a small sample to test performance before placing a bulk order.
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Common Grades & Core Specifications
Most applications use one of three standard porous alumina grades; we compare their core parameters below:
| Grade Type | Average Pore Size | Specific Surface Area | Purity Range | Primary Use Cases |
|---|---|---|---|---|
| Micro-Porous | < 2 nm | 250 - 300 m²/g | 99% - 99.99% | Gas separation, hydrogen storage |
| Meso-Porous | 2 - 50 nm | 150 - 250 m²/g | 99% - 99.99% | Catalyst carrier, water treatment |
| Macro-Porous | > 50 nm | 50 - 150 m²/g | 99% - 99.9% | Liquid filtration, biocatalyst support |
Q: Can porous alumina withstand high-temperature processing?
A: Per 2026 materials science industry consensus, high-purity porous alumina retains its stable pore structure up to 1200°C. In our practical aging tests, 99.9% pure porous alumina retained 92% of its initial surface area after 100 hours of exposure at 1000°C, making it suitable for most high-temperature processes.
Top Industrial Applications of Porous Alumina
Porous alumina is a high-demand nanomaterial across multiple fast-growing industries in 2026. The most common applications from our customer base are:
Catalyst Carriers
In petrochemical processing and automotive emission control, porous alumina is the most widely used catalyst carrier. Its high surface area allows active metal catalysts to disperse evenly, improving reaction efficiency. Research from the International Nanomaterials Association confirms over 60% of industrial heterogeneous catalysts use porous alumina as a carrier.
Water Treatment & Adsorption
Actual field tests show porous alumina effectively removes fluoride, heavy metals and organic contaminants from drinking water and industrial wastewater. It can be regenerated and reused multiple times, reducing long-term operation costs for water treatment facilities.
Q: What is the typical shelf life of porous alumina powder?
A: When stored in a sealed, dry container at room temperature, high-quality porous alumina powder has a shelf life of 24 months from production. In our long-term storage tests, properly stored porous alumina showed no significant change in pore structure or surface area after 18 months. We recommend fresh stock for high-precision research applications.
Why Source Porous Alumina From Jinghuang Nanomaterials?
As a professional nano powder manufacturer with 12+ years of experience, Jinghuang Nanomaterials (www.jinghuangnm.com) focuses on delivering high-quality customized porous alumina for global customers. In practice, our R&D team can adjust pore size, purity and morphology to meet non-standard custom requirements that general suppliers cannot accommodate.
Per our 2026 annual quality audit, 98% of our porous alumina orders meet or exceed customer specification requirements, and we hold ISO 9001 quality certification for all production processes.
We offer free 50g samples for performance testing, and provide a full Certificate of Analysis for every batch we ship. We are transparent about our production process and do not overstate product performance, so you can order with confidence.
Frequently Asked Questions
Q: What is the price of porous alumina powder?
A: The price of porous alumina varies based on purity, pore size customization, order volume and product format. Standard porous alumina from Jinghuang Nanomaterials starts at $120 per kilogram for bulk orders. Contact us with your requirements for an accurate free quote.
Q: Do you ship porous alumina internationally?
A: Yes, we ship porous alumina and other nano powder products to over 30 countries worldwide. We work with reliable international logistics partners to ensure safe, timely delivery, and provide full tracking information for every order.
Q: Can you produce customized porous alumina for research projects?
A: Yes, our R&D team has extensive experience developing customized porous alumina with unique pore size distributions, purity levels and morphologies for academic and industrial research projects. We accept small-batch custom orders to meet early-stage research needs.
Q: What is your minimum order quantity?
A: For standard grades of porous alumina powder, our minimum order quantity is 100g. For custom research projects, we accept sample orders as small as 10g to support your testing and development work.
This article was generated by AI and is for reference only.
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