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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:
Molecular Weight:
224.81
UNSPSC Code:
12352311
NACRES:
NA.23

Quality Level

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

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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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
Lingfeng Gao et al.
ACS nano, 15(1), 954-965 (2021-01-23)
Although the physicochemical properties of niobium carbide (Nb2C) have been widely investigated, their exploration in the field of photoelectronics is still at the infancy stage with many potential applications that remain to be exploited. Hence, it is demonstrated here that
Recent advances in niobium MXenes: Synthesis, properties, and emerging applications
Rasheed, P. Abdul et. al
Matter, 5(2), 546-572 (2022)
Xiangyi Ren et al.
ACS nano, 13(6), 6438-6454 (2019-06-11)
Ionizing radiation (IR) has been extensively used in industry and radiotherapy, but IR exposure from nuclear or radiological accidents often causes serious health effects in an exposed individual, and its application in radiotherapy inevitably brings undesirable damage to normal tissues.

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