ECT Produces Defence-Grade MXene Using Metallium Flash Joule Heating Reactor
Key Takeaways
- ECT produced MXene in its first two Flash Joule Heating runs on Metallium's reactor platform, with Moore Analytical's XRD analysis showing changes consistent with chlorine-terminated MXene.
- The first flashes processed 400g of MAX phase precursor in 30 and 60 minutes, against conventional batches typically under 100g, though the comparison is ECT's own.
- Xenica Inc holds a sublicence from MXene Inc. for military end-use, targeting EMI shielding and defence coatings where performance outranks price.
- The acquisition of Xenica Pty Ltd is still proposed, and the announcement discloses no revenue, contracts, customers, timelines or costs.
- Next steps are repeatable production at Metallium's Gator Point facility in Texas, independent testing against defence specifications and sample deliveries to prospective customers.
ECT produces MXene in first Flash Joule Heating runs
Xenica Inc, a wholly owned subsidiary of acquisition target Xenica Pty Ltd, has produced MXene in the first runs of its scale-up optimisation program. The runs used Metallium’s Flash Joule Heating (FJH) reactor platform, according to an ASX announcement from Environmental Clean Technologies Limited (ASX: ECT) dated 9 October 2026.
Two separate flashes are now complete under the existing R&D and Engineering Agreement with Metallium Ltd (ASX:MTM), which ECT referred to in its 4 August 2026 announcement. The first flashes were completed in line with the timetable the company previously announced.
Independent laboratory Moore Analytical performed X-ray diffraction (XRD) analysis, which showed changes in interlayer spacing consistent with the formation of chlorine-terminated MXene. ECT also characterised the reaction products internally using X-ray fluorescence (XRF) and scanning electron microscopy (SEM).
For investors, this is an early technical proof of concept, not commercial production. ECT’s acquisition of Xenica Pty Ltd remains proposed.
Justin Sharp, Chief Scientist and CTO
“Successfully producing MXenes in the first flash runs marks a major milestone for ECT and provides strong support for our proposed acquisition…”
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Why could the FJH process change MXene economics?
What are MXenes and why does defence care?
MXenes are an emerging class of two-dimensional (2D) materials that combine high electrical conductivity, low weight and highly tuneable surface chemistry. ECT describes them as one of the most promising materials for electromagnetic interference (EMI) shielding and advanced defence coatings, where thin, lightweight layers are needed to block, absorb or manage electromagnetic signals.
Potential defence applications listed in the announcement include:
- EMI shielding for electronics and communications systems
- Radar-absorbing and signature-management coatings
- Protective coatings for sensitive equipment
These are performance-critical uses where materials are selected on capability rather than price. ECT says high-quality, Western-produced MXene is not currently available at scale.
Adoption has been held back by the cost, safety and limited scalability of conventional production methods.
How does FJH compare with conventional production?
Conventional MXene manufacture selectively removes aluminium from a layered ceramic precursor, known as MAX phase, using hydrofluoric acid (HF) or similarly aggressive chemistry. ECT says this limits output to small batches and generates hazardous waste.
| Factor | Conventional method | ECT’s FJH process |
|---|---|---|
| Chemistry | HF or similarly aggressive chemistry | Dry, HF-free process |
| Batch size | Typically limited to small batches (<100g) | First flashes processed 400g of MAX phase precursor |
| Waste | Generates hazardous waste | Minimal waste |
| Run time | Time intensive | 30 and 60 minutes for the first flashes |
The comparison comes from ECT’s own announcement, so treat it as the company’s view. Published research in Nature Synthesis provides only an early indication that FJH is faster, eliminates bulk acid handling, materially reduces waste and is potentially more scalable than conventional methods.
The Metallium collaboration gives ECT access to an existing FJH reactor platform, engineering expertise and U.S.-based scale-up infrastructure. That allows the process to be evaluated beyond laboratory scale without ECT building its own specialised processing infrastructure. If successful, ECT says FJH could provide a lower-cost manufacturing pathway for MXenes.
Michael Walshe, Metallium Managing Director and CEO
“This program highlights the commercial potential of Metallium’s FJH platform beyond metals recovery. Our collaboration with ECT provides an opportunity to generate additional revenue from our technology, engineering capability and U.S. infrastructure while supporting the development of advanced materials…”
What is the defence customer pathway?
ECT is targeting a scalable, cost-effective U.S. source of MXenes for defence applications. Xenica Inc holds a sublicence from MXene Inc. to produce, use or sell MXenes for military end-use, as disclosed in ECT’s 14 September 2026 announcement.
ECT describes defence as an attractive entry market because procurement is performance-led and demand for secure, Western-produced supply exceeds current availability. To identify the highest-value opportunities, ECT intends to:
- Map priority defence applications, beginning with EMI shielding and defence coatings, against the material specifications each requires.
- Engage with prospective defence customers and programmes to understand performance requirements and qualification pathways.
- Benchmark FJH-produced material against conventionally produced MXene.
- Deliver samples to prospective customers for evaluation as material meets target specifications.
ECT says this approach is consistent with research in Renewable and Sustainable Energy Reviews. That research proposed establishing early revenue in high-return military and medical applications and using that position to fund the manufacturing scale-up needed to unlock broader industrial markets.
The announcement does not disclose any revenue, contracts or customers. At this stage, the customer pathway is a plan, not a result.
Faldi Ismail, Executive Chairman
“Our focus is on turning this technical progress into a commercial opportunity by producing material consistently to target customer specifications…”
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What are the next steps for the structured flash program?
The structured flash program will continue. The next steps are:
- Further flashes across a range of process conditions, working towards repeatable production at Metallium’s Gator Point facility in Texas, USA
- Independent characterisation of the material against defence-relevant specifications
- Delivery of samples to prospective defence customers
- Customer and programme qualification
The stated focus is on improving conversion and product consistency. Metallium’s Walshe also pointed to improving process repeatability and generating the operating data needed to support further scale-up.
Metallium’s multi-unit FJH scale-up in Texas is the infrastructure ECT is relying on, and further flashes at Gator Point will test whether that capacity translates into repeatable MXene output.
The announcement gives no timelines, costs, volumes or financial figures for these steps. That leaves investors watching for evidence of repeatability and customer engagement rather than numbers.
Figure 1: SEM image of the bulk reaction product from the second flash, showing the open, layered structure expected of an etched MAX phase grain. Image captured at the Rice University Shared Equipment Authority.
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