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925195

Sigma-Aldrich

Niobium Aluminum Carbide MAX phase

NB2ALC

Synonym(s):

MAX phase 211, Nb2AlC MAX, Niobium aluminium carbide

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About This Item

Empirical Formula (Hill Notation):
Nb2AlC
CAS Number:
60687-94-7
Molecular Weight:
224.81
UNSPSC Code:
12352311

Quality Level

100

form

powder

color

black

solubility

insoluble

storage temp.

2-8°C

Application

Nb2AlC MAX phase is the precursor to revolutionary Nb2CTx MXene applications.
  • Technical Prowess: Electrical Conductivity: Nb2AlC serves as the precursor for Nb2CTx MXene, showcasing remarkable electrical conductivity of 3.5 × 10^4 S/cm.
  • Thermal Conductivity: A thermal conductivity of 37.8 W/m·K ensures efficient heat dissipation, crucial for various engineering applications.
  • Hardness: With a Vickers hardness of approximately 14.3 GPa, Nb2AlC promises durability and resistance to wear.
  • Temperature Stability: Operating at temperatures exceeding 1000°C, Nb2AlC finds applications in high-temperature environments like thermal barriers and heat exchangers.
Nb2CTx MXene derived from Nb2AlC finds diverse applications:
  • Energy Storage: Offers high cycling rates (10C) for Li-ion and rechargeable non-lithium-ion (Na+, K+, Mg2+, Ca2+, and Al3+) batteries and supercapacitors.
  • Biomedical Sensing: Enables advanced biomedical sensing including drug delivery and selective analyte detection.
  • Photothermal Catalysis: Utilizes photothermal conversion for CO2 conversion and cancer cell ablation.
In groundbreaking research, Nb2CTx exhibits:
  • Superconducting behavior with an onset transition temperature of 12.5 K.
  • Remarkable specific capacity and cycling stability, ideal for LIBs and Na+ ion batteries.
  • Multimodal functions in biomedical implants, including antibacterial properties and tissue regeneration.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Kent J Griffith et al.
Journal of the American Chemical Society, 142(44), 18924-18935 (2020-10-24)
MXenes, derived from layered MAX phases, are a class of two-dimensional materials with emerging applications in energy storage, electronics, catalysis, and other fields due to their high surface areas, metallic conductivity, biocompatibility, and attractive optoelectronic properties. MXene properties are heavily
Yiduo Wang et al.
ACS nano, 14(8), 10492-10502 (2020-07-21)
Exploring the nonlinear photonics of emerging promising two-dimensional (2D) materials like MXenes will boost the development of broad-band optoelectronic and photonic applications. In this paper, the broad-band nonlinear optical response and the excited-carrier dynamics of an emerging MXene, Nb2C, are

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