Three- and Four-Component M-Site Systems | Nominal Purity ≥99% | 200, 400, and 600 Mesh Options | Standard Packaging: 1 g, 5 g, and 50 g
This series includes 211-, 312-, and 413-type multi-component MAX phases with M-site combinations such as Ti/V/Nb/Ta, Ti/Nb/Ta, V/Mo/Nb, Ti/V/Zr/Nb, Ti/V/Nb, Ti/V/Ta, Ti/V/Cr/Mo, and Ti/V/Nb/Mo. These materials are suitable for studies of configurational entropy, elemental solid solutions, lattice distortion, M-site occupancy, sintering, high-temperature performance, functional coatings, and layered derivative materials.
Medium-entropy MAX phases are multi-component materials formed by introducing three or four transition-metal elements into the M-site sublattice of a conventional layered MAX phase. Combining multiple M-site elements creates additional possibilities for controlling lattice parameters, local distortion, elemental occupancy, interlayer bonding, and phase stability.
This series includes 211-, 312-, and 413-type structures. The 211 type is generally represented as M2AlC, the 312 type as M3AlC2, and the 413 type as M4AlC3. Catalog formulas indicate nominal composition only. Actual elemental ratios, solid-solution uniformity, primary-phase content, and secondary phases should be confirmed using batch-specific XRD, elemental-analysis, and microscopic-characterization data.
| Parameter | Series Information |
|---|---|
| Product Series | Medium-Entropy MAX Phase Research-Grade Powders |
| Structural Types | 211-, 312-, and 413-Type Layered Carbides |
| M-Site Composition | Nominal equal-ratio mixture of three or four transition-metal elements |
| A-Site Element | Al |
| X-Site Element | C |
| Product Form | Powder |
| Product Grade | Research Grade |
| Nominal Purity | ≥99% |
| Available Mesh Sizes | 200, 400, and 600 mesh, depending on the product model |
| Standard Packaging | 1 g, 5 g, and 50 g |
| Primary Elements | Ti, V, Cr, Zr, Nb, Mo, Ta, Al, and C |
| Characterization Data | Batch-specific XRD, SEM, EDS, and particle-size data may be available upon request |
| Customization Services | Special mesh sizes, packaging, bulk quantities, and characterization requirements are available upon request |
| Inventory and Lead Time | Please inquire before ordering |
| Product Model | Structural Type | M-Site Elements | Nominal M-Site Ratio | A-Site Element | X-Site Element | Available Mesh Sizes | Composition Feature | Recommended Research Areas |
|---|---|---|---|---|---|---|---|---|
| (Ti1/4V1/4Nb1/4Ta1/4)2AlC | 211-Type | Ti, V, Nb, and Ta | 1:1:1:1 | Al | C | 200, 400, and 600 mesh | Four-component equal-ratio M-site system | Configurational entropy, elemental solid solutions, lattice distortion, high-temperature stability, and sintering |
| (Ti1/3Nb1/3Ta1/3)2AlC | 211-Type | Ti, Nb, and Ta | 1:1:1 | Al | C | 200, 400, and 600 mesh | Three-component equal-ratio M-site system | Elemental occupancy, lattice parameters, mechanical behavior, high-temperature properties, and oxidation resistance |
| (V1/3Mo1/3Nb1/3)2AlC | 211-Type | V, Mo, and Nb | 1:1:1 | Al | C | 200, 400, and 600 mesh | V/Mo/Nb three-component M-site system | Electronic structure, electrical conduction, elemental synergy, and layered derivative materials |
| (Ti1/4V1/4Zr1/4Nb1/4)2AlC | 211-Type | Ti, V, Zr, and Nb | 1:1:1:1 | Al | C | 200, 400, and 600 mesh | Zr-containing four-component M-site system | Atomic-size effects, local lattice distortion, thermal stability, and composite materials |
| (Ti1/3V1/3Nb1/3)2AlC | 211-Type | Ti, V, and Nb | 1:1:1 | Al | C | 200, 400, and 600 mesh | Ti/V/Nb three-component M-site system | Solid-solution behavior, electrical and electrochemical properties, structural stability, and interfaces |
| (Ti1/3V1/3Ta1/3)2AlC | 211-Type | Ti, V, and Ta | 1:1:1 | Al | C | 200, 400, and 600 mesh | Ti/V/Ta three-component M-site system | Heavy-element effects, lattice distortion, high-temperature performance, mechanical behavior, and oxidation resistance |
| (Ti1/4V1/4Cr1/4Mo1/4)3AlC2 | 312-Type | Ti, V, Cr, and Mo | 1:1:1:1 | Al | C | 200, 400, and 600 mesh | Cr/Mo-containing four-component 312-type system | Magnetic properties, electronic structure, interlayer bonding, oxidation behavior, and functional performance |
| TiVCrMoAlC3 | 413-Type Catalog Composition | Ti, V, Cr, and Mo | Nominally equal ratio | Al | C | 200 and 400 mesh | Four-component M-site 413-type catalog system | Thicker M–C layers, magnetic properties, electronic structure, high-temperature stability, and layered derivatives |
| TiVNbMoAlC3 | 413-Type Catalog Composition | Ti, V, Nb, and Mo | Nominally equal ratio | Al | C | 200 and 400 mesh | Four-component M-site 413-type catalog system | Multi-component solid solutions, electrical conduction, structural stability, sintering, and composite materials |
Multiple transition metals share the M site, providing additional variables for structural and property regulation.
Includes 211-, 312-, and 413-type materials for comparing different M–C layer thicknesses.
Includes combinations of Ti, V, Cr, Zr, Nb, Mo, and Ta.
Suitable for research on configurational entropy, lattice distortion, solid-solution stability, and elemental synergy.
Available in 200, 400, and 600 mesh grades for sintering, dispersion, coatings, and fine mixing.
Batch-specific XRD, SEM, EDS, and particle-size data may be available upon request.
| Application Area | Application Description |
|---|---|
| Fundamental Medium-Entropy MAX Research | Crystal structure, phase composition, lattice parameters, and configurational-entropy effects |
| Multi-Component Solid-Solution Research | Solid-solution behavior, segregation, and spatial distribution of different M-site elements |
| Lattice-Distortion Research | Effects of different atomic sizes and chemical characteristics on the local lattice |
| M-Site Occupancy Research | Arrangement and occupancy characteristics of multiple transition metals in the M-site sublattice |
| Powder Sintering | Pressureless sintering, hot pressing, spark-plasma sintering, and densification experiments |
| High-Temperature Performance | Thermal stability, oxidation behavior, thermal expansion, and high-temperature mechanical properties |
| Functional Coatings | Wear-resistant, conductive, high-temperature-resistant, and oxidation-resistant coating formulations |
| Electrical and Magnetic Research | Electronic structure, electrical conduction, magnetic response, and temperature-dependent transport |
| Layered Derivative Materials | A-layer reactions, structural evolution, and multi-component two-dimensional materials |
| Computational Materials Research | Structural prediction, first-principles calculations, and comparison with experimental results |
| Specification | Key Characteristics | Recommended Uses |
|---|---|---|
| 200 Mesh | Relatively coarse particles with good flowability | Solid-state reactions, pellet pressing, sintering, and routine composite preparation |
| 400 Mesh | Finer powder with a relatively larger contact area | Slurries, coatings, dispersion, interfacial reactions, and fine mixing |
| 600 Mesh | Higher fineness suitable for more uniform powder mixing | Fine coating, thin-layer preparation, and highly uniform formulations |
| 1 g | Suitable for small-quantity model screening | Preliminary characterization, material selection, formulation validation, and small-scale trials |
| 5 g | Suitable for routine trials and process screening | Sintering, composite preparation, coatings, and multiple performance tests |
| 50 g | Suitable for continuous experiments and staged R&D | Batch mixing, sintering, and medium-quantity research experiments |
| Procedure | Instructions |
|---|---|
| Model Selection | Select the product according to the structural type, M-site combination, mesh size, and research objective |
| Batch Verification | Before use, verify the product label, chemical formula, mesh size, and batch-specific characterization data |
| Opening and Sampling | Use clean, dry sampling tools and avoid moisture, oil contamination, and cross-contamination |
| Pretreatment | For moisture-sensitive experiments, low-temperature vacuum drying or inert-atmosphere drying may be used |
| Powder Mixing | Use mechanical stirring, low-energy ball milling, or another suitable method according to the formulation |
| Dispersion | For slurry experiments, optimize the solvent, dispersant, stirring, and ultrasonication conditions |
| Pellet Forming | Pellet pressing may be performed before sintering; adjust pressure according to the equipment and powder condition |
| Heat Treatment | Determine sintering temperature, atmosphere, heating rate, and holding time through preliminary trials |
| Structural Conversion | When selective reactions are involved, conduct small-scale condition screening and control the reaction process |
| Result Characterization | Use XRD, SEM, EDS, TEM, and relevant performance tests to confirm the final material condition |
| Research Requirement | Recommended Model or Specification |
|---|---|
| Ti/V/Nb/Ta Four-Component 211-Type Research | (Ti1/4V1/4Nb1/4Ta1/4)2AlC |
| Ti/Nb/Ta Three-Component 211-Type Research | (Ti1/3Nb1/3Ta1/3)2AlC |
| V/Mo/Nb Three-Component 211-Type Research | (V1/3Mo1/3Nb1/3)2AlC |
| Zr-Containing Four-Component 211-Type Research | (Ti1/4V1/4Zr1/4Nb1/4)2AlC |
| Ti/V/Nb Three-Component 211-Type Research | (Ti1/3V1/3Nb1/3)2AlC |
| Ti/V/Ta Three-Component 211-Type Research | (Ti1/3V1/3Ta1/3)2AlC |
| Four-Component 312-Type and Cr/Mo-Containing Research | (Ti1/4V1/4Cr1/4Mo1/4)3AlC2 |
| Four-Component 413-Type and Cr-Containing Research | TiVCrMoAlC3 |
| Four-Component 413-Type and Nb-Containing Research | TiVNbMoAlC3 |
| Pellet Pressing, Sintering, and Solid-State Reactions | Prioritize 200 mesh |
| Slurries, Coatings, and Fine Dispersion | Prioritize 400 or 600 mesh |
| Characterization Method | Primary Purpose |
|---|---|
| XRD | Confirm the primary MAX phase, structural type, lattice parameters, and possible secondary phases |
| XRD Refinement | Analyze lattice parameters, phase ratios, and structural changes caused by multi-component solid solutions |
| SEM | Observe particle morphology, layered features, surface condition, and agglomeration |
| TEM / STEM | Observe local lattice, defects, interlayer structures, and distribution of different M-site elements |
| EDS Mapping | Analyze spatial distribution and uniformity of multiple M-site elements |
| Quantitative Elemental Analysis | Verify the actual ratio of each M-site element and the overall stoichiometry |
| XPS | Analyze surface chemical states and bonding information among multiple elements |
| Particle-Size Analysis | Determine D10, D50, D90, and the complete particle-size distribution |
| Thermal Analysis | Study thermal stability, oxidation processes, and mass changes with temperature |
| Electrical, Magnetic, and Mechanical Testing | Study electrical conduction, magnetic response, hardness, indentation, and high-temperature mechanical properties |
| Item | Recommendation |
|---|---|
| Storage Environment | Store sealed in a cool, dry place away from direct light |
| Storage After Opening | Reseal promptly after sampling and avoid prolonged exposure to air and moisture |
| Long-Term Storage | Vacuum or inert-gas protection may be used when required |
| Personal Protection | Wear laboratory gloves, a dust mask or suitable respirator, protective clothing, and safety goggles |
| Dust Control | Avoid generating airborne dust and operate in a fume hood or under local dust extraction |
| Cross-Contamination | Use dedicated or thoroughly cleaned sampling, grinding, and mixing tools for different product models |
| Waste Disposal | Dispose of the material according to laboratory requirements for inorganic powders and metal-containing waste |
| Intended Use | For scientific research and industrial R&D only; not intended for food, medical, or human-use applications |
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Research-Grade Powder ' Purity ≥99% ' 200, 400, and 600 Mesh Available ' 1 g, 5 g, and 50 g Options
| Product Model | Mesh Size | 1 g | 5 g | 50 g |
|---|---|---|---|---|
| (Ti1/4V1/4Nb1/4Ta1/4)2AlC | 200 Mesh | $53 | $241 | $2,046 |
| 400 Mesh | $56 | $247 | $2,100 | |
| 600 Mesh | $60 | $253 | $2,153 | |
| (Ti1/3Nb1/3Ta1/3)2AlC | 200 Mesh | $53 | $241 | $2,046 |
| 400 Mesh | $56 | $247 | $2,100 | |
| 600 Mesh | $60 | $253 | $2,153 | |
| (V1/3Mo1/3Nb1/3)2AlC | 200 Mesh | $53 | $241 | $2,046 |
| 400 Mesh | $56 | $247 | $2,100 | |
| 600 Mesh | $60 | $253 | $2,153 | |
| (Ti1/4V1/4Zr1/4Nb1/4)2AlC | 200 Mesh | $53 | $241 | $2,046 |
| 400 Mesh | $56 | $247 | $2,100 | |
| 600 Mesh | $60 | $253 | $2,153 | |
| (Ti1/3V1/3Nb1/3)2AlC | 200 Mesh | $53 | $241 | $2,046 |
| 400 Mesh | $56 | $247 | $2,100 | |
| 600 Mesh | $60 | $253 | $2,153 | |
| (Ti1/3V1/3Ta1/3)2AlC | 200 Mesh | $53 | $241 | $2,046 |
| 400 Mesh | $56 | $247 | $2,100 | |
| 600 Mesh | $60 | $253 | $2,153 | |
| (Ti1/4V1/4Cr1/4Mo1/4)3AlC2 | 200 Mesh | $53 | $241 | $2,046 |
| 400 Mesh | $56 | $247 | $2,100 | |
| 600 Mesh | $60 | $253 | $2,153 | |
| TiVCrMoAlC3 | 200 Mesh | $70 | $194 | $1,648 |
| 400 Mesh | $74 | $193 | $1,642 | |
| TiVNbMoAlC3 | 200 Mesh | $70 | $194 | $1,648 |
| 400 Mesh | $74 | $193 | $1,642 |
Partial references citing our materials (from Google Scholar)
Carbon Dioxide Reduction
1. ACS Nano Strain Relaxation in Metal Alloy Catalysts Steers the Product Selectivity of Electrocatalytic CO2 Reduction
The bipolar membrane (Fumasep FBM) in this paper was purchased from SCI Materials Hub, which was used in rechargeable Zn-CO2 battery tests. The authors reported a strain relaxation strategy to determine lattice strains in bimetal MNi alloys (M = Pd, Ag, and Au) and realized an outstanding CO2-to-CO Faradaic efficiency of 96.6% with outstanding activity and durability toward a Zn-CO2 battery.
2. Front. Chem. Boosting Electrochemical Carbon Dioxide Reduction on Atomically Dispersed Nickel Catalyst
In this paper, Vulcan XC-72R was purchased from SCI Materials Hub. Vulcan XC 72R carbon is the most common catalyst support used in the anode and cathode electrodes of Polymer Electrolyte Membrane Fuel Cells (PEMFC), Direct Methanol Fuel Cells (DMFC), Alkaline Fuel Cells (AFC), Microbial Fuel Cells (MFC), Phosphoric Acid Fuel Cells (PAFC), and many more!
3. Adv. Mater. Partially Nitrided Ni Nanoclusters Achieve Energy-Efficient Electrocatalytic CO2 Reduction to CO at Ultralow Overpotential
An AEM membrane (Sustainion X37-50 Grade RT, purchased from SCI Materials Hub) was activated in 1 M KOH for 24 h, washed with ultra-purity water prior to use.
4. Adv. Funct. Mater. Nanoconfined Molecular Catalysts in Integrated Gas Diffusion Electrodes for High-Current-Density CO2 Electroreduction
In this paper (Supporting Information), an anion exchanged membrane (Fumasep FAB-PK-130 obtained from SCI Materials Hub (www.scimaterials.cn)) was used to separate the catholyte and anolyte chambers.
SCI Materials Hub: we also recommend our Fumasep FAB-PK-75 for the use in a flow cell.
5. Appl. Catal. B Efficient utilization of nickel single atoms for CO2 electroreduction by constructing 3D interconnected nitrogen-doped carbon tube network
In this paper, the Nafion 117 membrane was obtained from SCI Materials Hub.
In this paper, Proton exchange membrane (Nafion 117), Nafion D520, and Toray 060 carbon paper were purchased from SCI Materials Hub.
7. National Science Review Confinement of ionomer for electrocatalytic CO2 reduction reaction via efficient mass transfer pathways
An anion exchange membrane (PiperION-A15-HCO3) was obtained from SCI Materials Hub.
8. Catalysis Communications Facilitating CO2 electroreduction to C2H4 through facile regulating {100} & {111} grain boundary of Cu2O
Carbon paper (TGPH060), membrane solution (Nafion D520), and ionic membrane (Nafion N117) were obtained from Wuhu Eryi Material Technology Co., Ltd (a company under SCI Materials Hub).
Batteries
1. J. Mater. Chem. A Blocking polysulfides with a Janus Fe3C/N-CNF@RGO electrode via physiochemical confinement and catalytic conversion for high-performance lithium–sulfur batteries
Graphene oxide (GO) in this paper was obtained from SCI Materials Hub. The authors introduced a Janus Fe3C/N-CNF@RGO electrode consisting of 1D Fe3C decorated N-doped carbon nanofibers (Fe3C/N-CNFs) side and 2D reduced graphene oxide (RGO) side as the free-standing carrier of Li2S6 catholyte to improve the overall electrochemical performance of Li-S batteries.
This paper used more than 10 kinds of materials from SCI Materials Hub and the authors gave detailed properity comparsion.
The commercial IEMs of Fumasep FAB-PK-130 and Nafion N117 were obtained from SCI Materials Hub.
Gas diffusion layers of GDL340 (CeTech) and SGL39BC (Sigracet) and Nafion dispersion (Nafion D520) were obtained from SCI Materials Hub.
Zn foil (100 mm thickness) and Zn powder were obtained from the SCI Materials Hub.
Commercial 20% Pt/C, 40% Pt/C and IrO2 catalysts were also obtained from SCI Materials Hub.
3. Journal of Energy Chemistry Vanadium oxide nanospheres encapsulated in N-doped carbon nanofibers with morphology and defect dual-engineering toward advanced aqueous zinc-ion batteries
In this paper, carbon cloth (W0S1011) was obtained from SCI Materials Hub. The flexible carbon cloth matrix guaranteed the stabilization of the electrode and improved the conductivity of the cathode.
4. Energy Storage Materials Defect-abundant commercializable 3D carbon papers for fabricating composite Li anode with high loading and long life
The 3D carbon paper (TGPH060 raw paper) were purchased from SCI Materials Hub.
5. Nanomaterials A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS2 Cathode Catalysts
Nafion D520 (5 wt%), and carbon paper (GDL340) were received from SCI-Materials-Hub.
Carbon cloth (W0S1011) and other electrochemical consumables required for air cathode were provided by SCI Materials Hub.
Oxygen Reduction Reaction
1. J. Chem. Eng. Superior Efficiency Hydrogen Peroxide Production in Acidic Media through Epoxy Group Adjacent to Co-O/C Active Centers on Carbon Black
In this paper, Vulcan XC 72 carbon black, ion membrane (Nafion N115, 127 μL), Nafion solution (D520, 5 wt%), and carbon paper (AvCarb GDS 2230 and Spectracarb 2050A-1050) were purchased from SCI Materials Hub.
2. Journal of Colloid and Interface Science Gaining insight into the impact of electronic property and interface electrostatic field on ORR kinetics in alloy engineering via theoretical prognostication and experimental validation
The 20 wt% Pt3M (M = Cr, Co, Cu, Pd, Sn, and Ir) were purchased from SCI Materials Hub. This work places emphasis on the kinetics of the ORR concerning Pt3M (M = Cr, Co, Cu, Pd, Sn, and Ir) catalysts, and integrates theoretical prognostication and experimental validation to illuminate the fundamental principles of alloy engineering.
Water Electrolysis
1. International Journal of Hydrogen Energy Gold as an efficient hydrogen isotope separation catalyst in proton exchange membrane water electrolysis
The cathodic catalysts of Pt/C (20 wt%, 2–3 nm) and Au/C (20 wt%, 4–5 nm) were purchased from SCI Materials Hub.
2. Small Science Silver Compositing Boosts Water Electrolysis Activity and Durability of RuO2 in a Proton-Exchange-Membrane Water Electrolyzer
Two fiber felts (0.35 mm thickness, SCI Materials Hub) were used as the porous transport layers at both the cathode and the anode.
3. Advanced Functional Materials Hierarchical Crystalline/Amorphous Heterostructure MoNi/NiMoOx for Electrochemical Hydrogen Evolution with Industry-Level Activity and Stability
Anion-exchange membrane (FAA-3-PK-130) was obtained from SCI Materials Hub website.
Fuel Cells
1. Polymer Sub-two-micron ultrathin proton exchange membrane with reinforced mechanical strength
Gas diffusion electrode (60% Pt/C, Carbon paper) was purchased from SCI Materials Hub.
Characterization
1. Chemical Engineering Journal Electrochemical reconstitution of Prussian blue analogue for coupling furfural electro-oxidation with photo-assisted hydrogen evolution reaction
An Au nanoparticle film was deposited on the total reflecting plane of a single reflection ATR crystal (SCI Materials Hub, Wuhu, China) via sputter coater.
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