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[festario] 12/11/2018 10:49

Of course Bish, yes, how stupid of me.I now realise that unexfoliated Graphene needs a good rub down with a pumice stone or fine sandpaper.

[club sandwich] 12/11/2018 10:49

This is all terribly exciting, but when it any of it going to turn into *significant* orders and revenues? After all, that's why we're all here, isn't it?

[adejuk] 12/11/2018 10:31

sea of red today

[bisho4] 12/11/2018 10:31

Fest, you're thinking of depilation :)

Un-exfoliated graphene would have a load of dead skin cells hanging off it. And just to put it into scale, a single skin cell is several orders of magnitude larger than a flake of nanene.

[superg1] 12/11/2018 10:25

Now you know why so many big names are running to VRS. They have a product that can be scaled up that works very well.

[superg1] 12/11/2018 10:24

Another key point

I see Novoselov was involved.

Sir Konstantin Sergeevich Novoselov FRS FRSC FInstP is a Russian physicist, and Langworthy Professor in the School of Physics and Astronomy at the University of Manchester with Russian and British citizenship. His work on graphene with Andre Geim earned them the Nobel Prize in Physics in 2010.

We keep saying there is an awful lot of junk out there, 95% of those that claim to produce graphene don't.

In that particular report no company hits the ISO nowhere near it.

[festario] 12/11/2018 10:15

Not exfoliated eh? Nothing worse than hairy graphene.

[superg1] 12/11/2018 10:11

From another source same topic.

We have been trying to tell folk.

A conclusion that sounds even more damming is that "our extensive studies of graphene production worldwide indicate that there is almost no high quality graphene, as defined by ISO, in the market yet."
The team also points out that a large number of the samples on the market labelled as graphene are actually graphene oxide and reduced graphene oxide. Furthermore, carbon content analysis shows that in many cases there is substantial contamination of the samples and a large number of companies produce material a with low carbon content. Contamination has many possible sources but most likely, it arises from the chemicals used in the processes.


The authors argue that the creation of stringent standards for graphene characterization and production, taking into account both the physical properties, as well as the requirements from the particular application, is the only way forward to create a healthy and reliable worldwide graphene market.

[ellissj] 12/11/2018 10:09

Exactly superg, in theory a production process may achieve iso flg in small yields suitable in lab research, but cannot scale up at that level. Thus a mainstay prouduct on sale at many tonnes annual production, is a graphite product. Vrs say they can do both ie quality at scale. Aimo. Best ellis

[superg1] 12/11/2018 10:01

Dafad

Good find

It's what a few of us I've been saying all along. not because we are know-alls but simply because we have read countless similar reports over the years.

This sums it up in that report.

Upon analyzing samples from over 60 different providers from the Americas, Asia, and Europe, the NUS team discovered that the majority contained less than 10 per cent of what can be considered graphene flakes. The bulk of the samples was graphite powder that was not exfoliated properly.

Now that is a key point. Anyone can get put out a sample of graphene and then claim they can do high quantities. One method is to use a centrifuge to keep removing the heavier (multi-layer) graphite. In the end you have the lightest platelets which will be few layer.

It's the simple difference between BS and reality of the microscopic atomic level of this business.
If folk can't grasp just how small these platelets are they will struggle to understand how difficult it is get to few layer of the right quality with little damage.

[bootie64] 12/11/2018 09:59

Coverage on Arrow Greentech from sept 2017

"Arrow: Owns a goldmine of patents "

Exhibit 1: Patent Journey Milestones

"Patents can make Arrow richer in several ways "

Pg3 details Arrows key milestones from 2001 with further details of patents in the coverage document

[phoenixs] 12/11/2018 09:59

I must say that I have thoroughly enjoyed reading what has been written on this thread over this weekend. Thank you to all contributors. Let us try to keep on topic and not to divert which is really very very boring.

[luckyorange] 12/11/2018 09:53

Very very sad regarding Haydale, shorters will be looking for an 8 bagger, not good for the PI's locked in there which is now a sell at any cost.

[pshevlin] 12/11/2018 09:46

Let's hope so.

[pshevlin] 12/11/2018 09:46

Let's hope so.

[alchemy] 12/11/2018 09:42

Fortunately Brexit is not going to happen .

[diversification] 12/11/2018 09:29

Bear trap formed last week

[adejuk] 12/11/2018 09:27

seller gone?

[spike_1] 12/11/2018 09:25

That sell at 122 (09:24) was my buy ;0)

[jbe81] 12/11/2018 09:17

Some great research here over the weekend.

[ellissj] 12/11/2018 09:13

ISO in 6 mos would be good:) but nothing is a given atm world political landscape. Thus UK should act at a national level asap to bring order to the graphene market? Aimo. Best ellis

"Russia is among 20 countries that are looking to squeeze a commercial advantage from Brexit after blocking an attempt by the international trade secretary, Liam Fox, to fast-track a World Trade Organization deal on the UK’s terms of trade with the world.

Whitehall is now facing “up to two dozen” different negotiations with countries over how much meat and dairy produce will be permitted into the British market and what tariffs the UK will set on imports."

[ellissj] 12/11/2018 09:07

Only if you've read the BSI ? It's not common knowledge though? and certainly with GEIC soon to open (a world leading institution) it would be beneficial if investors as well as industry knew the standard to what companys are producing to. Especially if they are listed! Aimo. Best ellis

[1teepee] 12/11/2018 08:52

Iso expected within 6 months

[1teepee] 12/11/2018 08:52

Uk standards are ahead of iso. British standards are what versarien are doing it to atm I think

[ellissj] 12/11/2018 08:33

Agreed, great find dafad. And below except shows how important it is to get standards in asap to formalise the emergent 2D industry to bring full confidence to it. What's why, as industry leaders, UK should use the NPL characterisation service to bring in 'national' standards ahead of iso, making results visible to all. So that investors have the full picture. While UK are ahead of the pack, we should make the changes that organise the graphene marketplace and help keep it that way? Specifically re VRS, v happy company says it's confident its products will meet proposed iso standard. Aimo. Best ellis.

"Overcoming the barrier to graphene innovation

With this discovery and the development of a reliable testing procedure, graphene samples may now be held to a higher standard.

“We hope that our results will speed up the process of standardization of graphene within ISO as there is a huge market need for that. This will urge graphene producers worldwide to improve their methods to produce a better, properly characterized product that could help to develop real-world applications,” said Prof Castro Neto.

In addition, testing graphene using a universal and standardized way could ensure easy quantitative comparisons between data produced from different laboratories and users around the world."