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In the fields of materials science, catalysis, energy and environment, specific surface area is one of the important parameters for measuring material performance. The adsorption efficiency of activated carbon, the activity of catalysts, and the energy storage performance of electrode materials are often closely related to their surface area. The most widely used surface area measurement method currently is BET specific surface area testing. This article will provide a detailed analysis of BET testing from several aspects, including principles, sample preparation, data processing, and precautions.
When we talk about future technology, we think of smarter devices, cleaner energy, and healthier lifestyles. Behind these grand blueprints, a seemingly inconspicuous material is silently exerting its power, which is nano nickel oxide.
In the future, with the upgrading of green manufacturing and the demand for functional glass, the application of magnesium oxide will develop towards refinement: on the one hand, the mechanical and optical properties of glass will be further improved by doping with nano MgO (particle size<50 nm); On the other hand, by combining AI driven component design, a new MgO based glass system (such as MgO Li ₂ O-ZrO ₂ low melting point glass) can be developed to adapt to flexible electronics and hydrogen energy storage and transportation applications. The value of magnesium oxide in glass composition is shifting from a "performance regulator" to a "functional enabler", driving the evolution of glass materials towards higher performance and wider scenarios.
There are three main methods for preparing single-walled carbon nanotubes: arc method, laser ablation method, and chemical vapor deposition (CVD) method.
The surface modification of silicon nitride powder is mainly achieved through physical and chemical methods to improve the physical and chemical properties of silicon nitride particles.
