5 grams: 60€
25 grams: 235€
100 grams:  825€
500 grams: 3900€
1000 grams: 7450€

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Molybdenum Aluminum Boride (MoAlB) MAB Phase Powder

Purity: 99+%, Size: 200 mesh

Molybdenum Aluminum Boride is a unique member of the MAB phase family, which are structural analogs to the MAX phases but utilize boron (B) instead of carbon (C) or nitrogen (N). It crystallizes in an orthorhombic structure (Cmcm space group), consisting of a Mo-B framework interleaved with double layers of Al atoms. Unlike many brittle ceramics, MoAlB is remarkably damage-tolerant and exhibits metallic-like electrical and thermal conductivity. A defining characteristic of MoAlB is its exceptional high-temperature oxidation resistance; when heated in air, it forms a dense, protective, and self-healing aluminum oxide layer that prevents further degradation, making it one of the most chemically stable borides known to materials science.

Technical Properties

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XRD

Applications

• MABene Synthesis: MoAlB serves as the essential precursor for producing 2D molybdenum borides, known as MABenes. By selectively removing the aluminum layers, researchers create 2D nanosheets that are highly sought after for their theoretical magnetism and superior performance in electrocatalytic hydrogen evolution.
• Extreme Environment Structural Components: Due to its ability to withstand oxidation at temperatures exceeding 1300°C, MoAlB is utilized in the aerospace and energy sectors for turbine blades, nozzle inserts, and heat exchanger parts that must operate in oxygen-rich, high-heat environments.
• Advanced Energy Storage (Li-ion & Hybrid Capacitors): The transition metal boride backbone provides high electronic conductivity and structural stability during ion intercalation. It is being researched as a conductive additive and active electrode material for high-rate lithium-ion batteries and hybrid electrochemical capacitors.
• Electrocatalysis and Water Splitting: MoAlB exhibits significant catalytic activity for the Hydrogen Evolution Reaction (HER). Its surface chemistry and the presence of molybdenum sites allow for efficient charge transfer, making it a lower-cost alternative to noble metal catalysts in acidic media.
• Spintronics and Flexible Electronics: Because of its unique electronic band structure and the potential for magnetic ordering in its 2D form, MoAlB derivatives are investigated for use in spintronic devices and conductive inks for flexible, high-durability electronic circuits.
• Nuclear Radiation Shielding: Boron-containing compounds are excellent neutron absorbers. The high density and structural integrity of MoAlB make it a candidate for specialized shielding applications in nuclear reactors where both thermal management and radiation protection are required.