Electrodes that store more and keep their charge.
MXenePower places sub-50 nm manganese oxide nanowires between MXene layers. The nanowires stop the sheets restacking and add surface area, giving a stronger supercapacitor electrode.
Two good materials, two bottlenecks
MXenes and metal oxides each show promise, but alone they underperform.
MXene restacking
MXene sheets fold back together and lose accessible surface.
Poor conductivity
Metal oxides like MnO2 conduct electricity poorly.
Lost capacity
Both issues limit how much charge an electrode can hold.
Nanowires between the sheets
Controlling nanowire thickness lets them fit inside MXene layers, solving both problems at once.
More charge per gram
- MXene alone: 527.8 F/g
- MnO2 alone: 337.5 F/g
- Best of both
Strong at practical current
- Hybrid supercapacitor use
- High surface area
- Stable structure
Holds up over cycles
- Little fade
- Stops restacking
- Long working life
How MXenePower works
From raw materials to a working electrode.
- 1
Prepare MXene
Two-dimensional MXene sheets are produced.
2D MXene - 2
Grow nanowires
Ultrathin MnO2 nanowires under 50 nm thick are synthesised.
MnO2< 50 nm - 3
Intercalate
Nanowires are placed between MXene layers to keep them apart.
Composite - 4
Test
Capacitance, capacity and cycling are measured.
Electrochemistry1000 cycles
What the research showed
Electrochemical results from the published study.
| Material | Specific capacitance |
|---|---|
| MnO2/MXene composite | 611.5 F/g |
| MXene | 527.8 F/g |
| MnO2 nanowires | 337.5 F/g |
Source: Mahmood et al., Energy & Fuels 35(4), 3469-3478 (2021). doi:10.1021/acs.energyfuels.0c03939
Who MXenePower is for
For makers of devices that need power quickly and often.
Energy storage makers
- Higher-capacitance electrodes
- Long cycle life
- Hybrid device ready
Electronics and EVs
- Fast charge and discharge
- Backup and peak power
- Stable over use
Renewable integrators
- Smooth solar and wind output
- Durable storage
- Scalable materials
Where the evidence stands
MXenePower has laboratory electrode data.
Lab scale
Results come from lab electrodes, not full commercial cells.
1000 cycles tested
Long-term behaviour beyond the tested cycles needs study.
Scale-up ahead
Large-scale synthesis and device packaging are next steps.
The team
Founded in 2021 by the research team behind the study.
Muhammad Shahid
Co-author of the MXenePower research.
Majid Mahmood
Co-author of the MXenePower research.
Aamir Rasheed
Co-author of the MXenePower research.
Imtisal Ayman
Co-author of the MXenePower research.
Tabinda Rasheed
Co-author of the MXenePower research.
Sana Munir
Co-author of the MXenePower research.
Sara Ajmal
Co-author of the MXenePower research.
Philips O. Agboola
Co-author of the MXenePower research.
Muhammad Farooq Warsi
Co-author of the MXenePower research.
Frequently asked questions
What is an MXene?
A family of two-dimensional, conductive materials made of metal carbides or nitrides.
Why add MnO2 nanowires?
They keep MXene sheets apart and add surface area for storing charge.
How well does it last?
It kept about 96% of its capacitance after 1000 cycles.
Who is behind it?
Researchers including Muhammad Shahid.
Peer-reviewed science behind MXenePower.
Read the full study behind the product.
Mahmood, M., Rasheed, A., Ayman, I., Rasheed, T., Munir, S., Ajmal, S., Agboola, P. O., Warsi, M. F., & Shahid, M. (2021). Synthesis of Ultrathin MnO 2 Nanowire-Intercalated 2D-MXenes for High-Performance Hybrid Supercapacitors. Energy & Fuels, 35(4), 3469-3478.
https://doi.org/10.1021/acs.energyfuels.0c03939