Grafite e grafene i materiali del futuro ?

Zenyatta Starts Pilot Plant with Delivery of 10 kilograms of High-Purity Graphite to Ben-Gurion University and Larisplast for New Concrete Admixture Containing Graphene

Thunder Bay, ON

23 November 2016



Zenyatta Ventures Ltd. (“Zenyatta” or “Company”) (TSXV: ZEN) today announced the delivery of 10 kilograms of high-purity Albany graphite to Ben-Gurion University of the Negev (‘BGU’) and Larisplast Ltd. (“Larisplast”) in Israel for the start of the next phase of testing of a pilot plant scale program.

The main objective of the pilot plant in Israel is to further test a new concrete admixture containing Albany derived graphene but with a much larger volume of concrete. The scientific and engineering data obtained will yield valuable information for potentially designing a larger scale demonstration plant. Recently, BGU demonstrated that the addition of the Company’s graphene into concrete can achieve a faster curing time and a superior mechanical performance that inhibits premature failure and tolerates large forces like those produced during earthquakes or explosions. Also, this new admixture has the potential to reduce the amount of cement that will be used in construction, thereby considerably cutting carbon dioxide emissions related to its production.

Importantly, work has shown Zenyatta’s Albany graphite is easily converted to graphene with significantly higher yields of graphene nano-particles than any other natural graphite types that were tested at BGU. Graphene was first produced in 2004 at the University of Manchester by Andre Geim and Konstantin Novoselov who were jointly awarded the Nobel Prize in Physics in 2010 "for groundbreaking experiments regarding the two-dimensional material graphene.” Graphene (or Carbon) is a single sheet of pure graphite that is one atom thick, flexible, transparent, light, stronger than diamonds or steel and is highly conductive. Graphene is making inroads in diverse industries, including transportation, medicine, electronics, energy, construction, defence and desalination. So far, one obstacle to its widespread use is the high manufacturing cost for high-quality graphene. A lower-cost approach is to use high-purity natural graphite, like Zenyatta’s material, as the starting point.

Dr. Bharat Chahar, VP of Market Development for Zenyatta stated, “The graphene concrete application and composite material in general can potentially be a significant end use for our high-purity graphite material. Our initiative with Larisplast and BGU is an important and new target application for Albany graphite. We are very excited to start our pilot plant collaboration program with our Israeli partners while we continue to test and develop our material for Li-ion batteries, fuel cells, powder metallurgy and other applications with several global corporations.”

Zenyatta, BGU and Larisplast have received grant funding from the Canada-Israel Industrial R&D Foundation under the Ontario-Israel Collaboration Program for this pilot scale test. Upon successful completion of testing, an Agreement between the Parties contemplates the formation of a new corporation (‘Newco’) jointly owned (50/50) by Zenyatta and Larisplast for the purposes of marketing this new specialized admixture product. Zenyatta would be the exclusive provider of purified graphite to Newco and any other party working with Larisplast on this technology.

Cement production for the concrete industry is a significant contributor of carbon dioxide which is a major greenhouse gas. Wide-spread use of a new graphene enhanced admixture product will have the potential to reduce the amount of cement used in construction and consequently cut considerable carbon dioxide emissions. In 2015, a total of 4.1 billion tonnes of cement was produced globally (Source: USGS). Approximately 25% of this total is in the use of Ultra-High Performance Concrete and High Performance Concrete which have the same ingredients as normal concrete but with special high cost additives. The potential increase in concrete performance enhanced with graphene would allow for a better and wider range of structures such as specialized bridges, taller buildings, marine structures and construction in seismically active areas. This could represent a very large and valuable target market for Zenyatta. Larisplast is an industry leader in Israel specializing in the field of concrete admixtures. The company develops, produces, markets and distributes high quality products and materials for Israel’s concrete industry according to strict Israeli‘s standards. Larisplast operates on a nationwide basis in Israel and is currently developing international markets and distribution channels.

BGU is a research leader in alternative energy, robotics and nano-technology while playing a critical role in transforming Israel’s high-tech growth. Specifically, the BGU research group focuses on carbon nanotubes and graphene product derivatives for new applications. The Advanced Technologies Park (ATP), adjacent to BGU is home to many multi-national high-tech companies, such as EMC, Oracle, Hewlett Packard, and Deutsche Telekom, which are leveraging the R&D expertise of BGU mainly through B. G. Negev Technologies and Applications Ltd. (“BGN”). BGN is the technology transfer and commercialization company for development of university technologies with industry partners.

BGU’s expertise in nanoscience is advancing new materials to convert light and heat into electrical energy, to produce lightweight cars and planes of unprecedented strength. Researchers are developing incredibly small transistors to power computers, membranes for desalinating water, graphene surfaces loaded with specific drugs for delivery to targeted diseased cells, graphene reinforcement in cement-based materials and hydrogen storage device as a key enabling technology for the advancement of hydrogen and fuel cell technologies.

Zenyatta continues to develop its rare igneous-hosted Albany graphite deposit in Ontario, Canada. The Company’s highly crystalline graphite deposit is fluid-derived rather than the typical and abundant sedimentary flake type graphite deposits. Albany is the largest and only graphite project of its kind in the world and was discovered by Zenyatta while exploring for Copper-Nickel in 2011-12. The unusual geologic mode of formation accounts for the favourable purity, crystallinity and particle size of graphite found in the Albany deposit. Dr. Andrew Conly (Professor, Geology at Lakehead University) observed, “Evidence has shown that Zenyatta has discovered a unique sub-class of a hydrothermal graphite deposit unlike any other. Igneous breccia-hosted graphite deposits like Albany are very rare, and to the best of my knowledge, none are currently being mined or even in an advanced stage of exploration globally. The far more common flake-type (sedimentary) graphite deposits form through a completely different geological process.”

The Albany graphite deposit is situated 30 km north of the Trans-Canada Highway, power line and natural gas pipeline near the communities of Constance Lake First Nation and Hearst. A rail line is located 70 km away with an all-weather road approximately 10 km from the graphite deposit. The world trend is to develop products for technological applications that need extraordinary performance using ultra-high purity graphite powder at an affordable cost. Albany graphite can be upgraded with very good crystallinity without the use of aggressive acids (hydrofluoric) or high temperature thermal treatment therefore having an environmental advantage over other types of upgraded high-purity graphite material.

The outlook for the global graphite market is very promising with demand growing rapidly from new applications. It is now considered one of the more strategic elements by many leading industrial nations, particularly for its growing importance in high technology manufacturing and in the emerging “green” industries such as electric vehicle components. The application for graphitic material is constantly evolving due to its unique chemical, electrical and thermal properties. It maintains its stability and strength under temperatures in excess of 3,000°C and is very resistant to chemical corrosion. It is also one of the lightest of all reinforcing elements and has high natural lubricating abilities. Some of these key physical and chemical properties make it critical to modern industry.
 
Zenyatta; Test Results from Dr. Arao (Tokyo Institute of Technology, Japan) Reveal Easy & High-Yield Conversion of Albany Graphite to Graphene Supporting Positive Results from Israel and Canada

Thunder Bay, ON



30 November 2016



Zenyatta Ventures Ltd. (“Zenyatta” or “Company”) (TSXV: ZEN) announces that Dr. Yoshihiko Arao and Professor Masatoshi Kubouchi at the Tokyo Institute of Technology (‘Tokyo Tech’) in Japan demonstrated the ease and high-yield conversion of Albany graphite to graphene.

The results from Dr. Arao also endorse an outcome announced in the Company’s news release dated 16 May 2016 from Dr. Oren Regev, (Associate Professor, Department of Chemical Engineering at Ben-Gurion University of the Negev, Israel). Dr. Regev stated that they regularly use various types of commercially available natural flake graphite, but found Albany graphite to easily exfoliate under sonication and with much higher yields of graphene nano-particles than any other natural graphite types that were tested.

Dr. Arao, Assistant Professor in the Department of Chemical Engineering at Tokyo Tech, stated “Zenyatta’s high-purity graphite material was tested by our scientific team on mechanical conversion to graphene and discovered it converted much easier and with higher yields of graphene than our reference material. We have tested many types of natural graphite but found Zenyatta’s graphite material to have better exfoliation performance and produce better graphene particles than the reference material. We believe that this is an unique material and we would like to carry out further collaborative work with Zenyatta on graphene applications.”

Tokyo Tech is the top national university for science and technology in Japan with a history spanning more than 130 years. It is the largest institution for higher education in Japan dedicated to science and technology, and is considered to be one of the most prestigious universities in Japan and the world. Tokyo Tech continues to develop global leaders in the fields of science and technology, and contributes to the betterment of society through its research, focusing on solutions to global issues. The Institute's long-term goal is to become the world's leading science and technology university.

Dr. Bharat Chahar, VP of Market Development for Zenyatta stated, “It is very important to receive further independent confirmation from Tokyo Tech of the superior performance of Albany graphite’s conversion to graphene. The obstacle to widespread use of graphene since discovery is the high manufacturing cost. A lower-cost and disruptive approach is to use high-purity natural graphite, like Albany material, as the starting point to get high yields of graphene. We are eager to start another phase of testing at a world class facility like Tokyo Tech using our high-purity graphite material for various innovative graphene applications.”

Earlier this year the Company also announced in a news release dated 27 January 2016 positive results from Dr. Aicheng Chen, (Professor of Chemistry and Canada Research Chair in Materials and Environmental Chemistry at Lakehead University, Thunder Bay, Ontario, Canada) related to the production of graphene oxide. Dr. Chen’s results indicated that high quality graphene oxide can easily be produced from Albany graphite. Additionally, the graphene oxide produced can be converted to graphene via a simple reduction process with a very high yield.

Zenyatta continues to develop its unique Albany graphite deposit in Ontario, Canada. The Company’s highly crystalline graphite deposit is situated 30 km north of the Trans-Canada Highway, power line and natural gas pipeline near the communities of Constance Lake First Nation and Hearst. A rail line is located 70 km away with an all-weather road approximately 10 km from the graphite deposit. The world trend is to develop products for technological applications that need extraordinary performance using ultra-high purity graphite powder at an affordable cost. High-purity and highly crystalline graphite material is gaining prominence in the cleantech sector at a time when Zenyatta discovered an extremely rare igneous hosted, fluid derived graphite deposit. Albany graphite can be upgraded with very good crystallinity without the use of aggressive acids (hydrofluoric) or high temperature thermal treatment.
 
The Québec Government Confirms Receipt of Focus Graphite’s Technical Documents in Support of the Environmental and Social Impact Assessment
for its Lac Knife Natural Flake Graphite Project

OTTAWA, ONTARIO – November 30th, 2016 -- Focus Graphite Inc. (FMS: TSX-V; OTCQX: FCSMF; FSE: FKC) (“Focus” or the “Company”) is pleased to announce that as part of the ongoing environmental permitting review process, the Ministère du Développement Durable, de l’Environnement et de la Lutte contre les Changements Climatiques (“MDDELCC”) of Québec has received supporting documentation regarding the Environmental and Social Impact Assessment (“ESIA”) report on the Lac Knife natural flake graphite project submitted in December 2014 (refer to Focus Graphite’s news release dated December 1, 2014 available at www.focusgraphite.com).

The ESIA support documentation also includes the Mine Closure Plan. The Mine Closure Plan will continue to evolve prior to and during the projected mine life. Communication with the MDDELCC is ongoing as the permitting process continues towards the planned detailed engineering phase of the Lac Knife project.

In other news, Focus announces that it will not proceed with additional closings of the non-brokered private placement of up to 30,000,000 units (the "Units") at a price of $0.10 per Unit for gross proceeds of up to $3,000,000 (the "Offering") announced on September 27, 2016 for which the closing of the first tranche was announced on October 3, 2016.
 
Batteria al grafene a lunga durata per smartphone e auto elettriche
2
L’University of Central Florida ha realizzato un prototipo in grado di stravolgere durata e autonomia delle batterie degli smartphone. E anche dopo 30mila ricariche non si degrada
Uno dei principali obiettivi di chi compra un nuovo smartphone è trovare il dispositivo dalla batteria perfetta. Il sogno sarebbe trovarne uno in grado di durare una settimana con pochi secondi di ricarica. E ora potrebbe non essere più un’utopia grazie al materiale del futuro: il grafene.

Le batterie al grafene con autonomia di una settimana. Gli scienziati della University of Central Florida hanno messo a punto un prototipo di batteria di tipo supercondensatore, capace di garantire un’autonomia smartphone 20 volte superiore rispetto agli standard delle batterie agli ioni di litio. E come se non bastasse per una ricarica completa servono solo pochi secondi. In pratica grazie a questa nuova scoperta potremmo ricaricare il nostro smartphone in tempi brevissimi e non avere bisogno di attaccarlo a una presa di corrente per almeno una settimana. Il tempo dei battery pack, insomma, potrebbe essere giunto al termine.

La batteria del futuro che non si degrada
Uno dei problemi principali delle batterie a ioni di litio è che si rovinano con il tempo. Dopo un po’ che si utilizza lo smartphone (ma il discorso vale per tutti i dispositivi alimentati a batteria) si inizia a notare che la durata diminuisce, l’autonomia dello smartphone si riduce e i tempi di ricarica aumentano. Questo perché le batterie agli ioni di litio possono essere ricaricate solo per un numero limitato di volte (tra le 800 e le 1000) e a metà della loro aspettativa di vita (circa 400 cicli di ricarica) iniziano a degradarsi. Così si spiega perché, dopo circa 18 mesi quasi tutte le batterie degli smartphone iniziano ad accusare problemi e si è costretti a sostituirle o ricorrere a soluzioni alternative.

Fonte: Shutterstock
Come evitare di scaricare la batteria dello smartphone? Sfoglia la gallery e scoprilo con i nostri consigli
Il prototipo dell’università statunitense, essendo composto di grafene, è immune dal cosiddetto “effetto memoria”: anche dopo 30.000 cicli di ricarica non presenta gli effetti “sgradevoli” dati dal degrado chimico e l’autonomia della batteria è immutata.

Come funzionano le batterie al grafene
Le batterie al grafene sfruttano la capacità di immagazzinare in tempi rapidissimi energia in maniera statica sulla loro superficie. Quindi più è grande più elettroni contiene e maggiore sarà la vita di una batteria. Ma non immaginatevi dispositivi enormi. Quella necessaria per alimentare uno smartphone per una settimana è una batteria al grafene molto più piccola di quelle “normali” ora in uso.

grafene.jpg
Fonte: University of Central Florida
Un’immagine al microscopio della batteria messa a punto negli Stati Uniti
Il futuro è del grafene
Il grafene, a detta di molti esperti, è il materiale che cambierà le nostre vite e i nostri dispositivi nel prossimo futuro. Questo perché permette di creare batterie di lunga durata ma soprattutto poiché è un materiale flessibile, che difficilmente si logora e che si lavora nel campo delle nanotecnologie. È un materiale duttile e resistentissimo, 200 volte più dell’acciaio per fare un esempio. Può essere usato praticamente per migliorare ogni dispositivo ora in commercio. L’unica pecca è il prezzo. Non essendo ancora riprodotto su scala globale costa circa 60 volte di più dei materiali utilizzati oggi per le batterie e 600 volte di più per realizzare un touchscreen. Però i ricercatori stanno puntando tutto su questo materiale e non è difficile prevedere un netto abbassamento dei costi a breve. Anche perché dagli smartphone, ai dispositivi per le energie rinnovabili e soprattutto per la durata batteria delle auto elettriche il grafene rappresenta una svolta epocale.
 
Leading Edge Materials Discovers Lithium Mineralization in Outcrop at Bergby Project, Sweden
Published by Craig P at 1st December 2016
Categories
Tags

Vancouver, Canada – Leading Edge Materials Corp. (“LEM“) or (the “Company“) (TSXV:LEM) (OTCQB: LEMIF) is pleased to announce the first discovery of lithium mineralization in outcrop, and the completion of a ground magnetic survey, at the Company’s 100% owned Bergby project.

Bergby lies in central Sweden, 25km north of the town of Gävle, and is secured by three exploration licenses that cover a total of 1,903 Ha. The site is close to infrastructure, with major roads, rail and power supply passing immediately adjacent to the claim boundaries.

Recent mapping at Bergby, in follow up to the identification of a lithium mineralized boulder field (see press releases dated 19th October 2016 and 4th November 2016), has discovered three areas of lithium mineralization in outcrop. Although the region is largely glacial soil covered, the few outcrops located include exposure of petalite and spodumene mineralized pegmatite with high grade lithium, similar to that previously observed in boulders.

Fifteen samples from three outcrop areas returned Li2O (lithium oxide) averaging 1.71% and ranging from 0.01% to 4.65%; and Ta2O5 (tantalum pentoxide) averaging 133 ppm and ranging from 16 ppm to 803 ppm (see Table 1). Samples included representative chip samples, composite samples and selective grab samples depending on outcrop quality, and were taken from three sites across an area of approximately 350m x 750m.

Furthermore, a small ground magnetic survey has been completed, to provide indication of the structural setting of the claim, and to assist with drill targeting. The survey covered 700m of strike of the lithium prospective sequence, and has defined a discrete magnetic low, as are often associated with lithium-cesium-tantalum (LCT) pegmatites.

Work is now underway to gain permits and prepare for a drilling program early in the first quarter of 2017.

Blair Way, President and CEO, stated “This discovery of high grade lithium mineralized outcrops at Bergby, despite the extensive glacial soil cover, gives us confidence we are close to the source of the extensive mineralized boulder field. The Bergby discovery is now drill-ready, and we are excited to get LEM’s maiden drilling program underway in the first quarter of next year.”

Lithium has a strong and expanding market, due to the essential role it plays in lithium-based batteries for the automotive, consumer product and stationary electrify storage industries. The high electrochemical potential of lithium results in the high power to weight ratio that is essential for efficient mobile batteries. Europe is investing heavily in these emerging battery technologies, as part of the transition to a low-carbon economy.
 
2016 DRILL PROGRAM COMPLETES 10 NEW DRILL HOLES AT LA LOUTRE

Vancouver, B.C and Montreal, Quebec December 9, 2016– Lomiko Metals Inc. ("Lomiko") (TSX-V: LMR, OTC: LMRMF, FSE: DH8B) and Canada Strategic Metals Inc. ("Strategic Metals"") (TSX.V: CJC; FSE: YXEN; OTC-BB: CJCFF) are pleased to announce A 1550 M drill program of 10 holes was completed in the new Refractory Zone at the la Loutre Flake Graphite Property. On February 9th, 2016, Lomiko Metals and Canada Strategic announced a resource for the La Loutre Flake Graphite Property of 18.4 M Tonnes of 3.19% Indicated and 16.7 M Tonnes at 3.75% Flake Graphite Inferred with a cut-off of 1.5%. The sensitivity table also features 4.1 M Tonnes of 6.5% Indicated and 6.2 M Tonnes at 6.1% Flake Graphite Inferred with a cut-off of 3%. The Resource is calculated on the Graphene-Battery Zone only and does not include any previous or current holes in the new Refractory Zone.

The La Loutre property consists of contiguous claim blocks totalling approximately 2,867.29 hectares (28.67 km2situated approximately 53 km east of Imerys Carbon and Graphite, formerly known as the Timcal Graphite Mine, North America’s only operating graphite mine, and 117 km northwest of the International Port of Montreal, key to shipping to North America and Europe. The Lac des Iles Property is directly west of the Imerys Graphite Mine. Lomiko is currently completing the 2nd option to acquire 80% of the La Loutre and Lac des Iles properties which requires $580,000 work expenditure between La Loutre property and others Canada Strategic properties.

The La Loutre Resource is constrained within a drilled area of approximately 900 m along the N150° striking trend of the graphitic paragneiss, 250 m across the strike and 225 m below surface. Geological interpretation and estimation were based on 62 NQ drill holes (totaling 8193.3 m) drilled by Lomiko and Canada Strategic Metals in 2014 and 2015.
 

LOMIKO DISCOVERS MULTIPLE MINERALIZED ZONES AT LA LOUTRE


Vancouver, B.C and Montreal, Quebec December 13, 2016– Lomiko Metals Inc.
(“Lomiko”) (TSX-V: LMR, OTC:

LMRMF, FSE: DH8B) and Canada Strategic Metals Inc. (“Strategic Metals””) (TSX.V: CJC; FSE: YXEN; OTC-BB: CJCFF)

are pleased to announce A 1550 M drill program of 10 holes was completed in the new Refractory Zone at the La

Loutre Flake Graphite Property which intercepted multiple zones of graphite mineralization.

“The intercepts of multiple zones of mineralization in the Refractory Zone where we have reported high grade

intercepts previously is a very promising sign. The samples have been rushed to the ALS Laboratory for full assay

testing.”, stated A. Paul Gill, CEO.

On February 9th, 2016, Lomiko Metals and Canada Strategic announced a resource for the La Loutre Flake Graphite

Property of 18.4 M Tonnes of 3.19% Indicated and 16.7 M Tonnes at 3.75% Flake Graphite Inferred with a cut-off of

1.5%. The sensitivity table also features 4.1 M Tonnes of 6.5% Indicated and 6.2 M Tonnes at 6.1% Flake Graphite

Inferred with a cut-off of 3%. The Resource is calculated on the Graphene-Battery Zone only and does not include

recent high grade intercepts of 28.5 Metres of 16.53% Cg and 21.5 Metres of 11.53% Cg reported January 6, 2016

and 9% over 90.75 metres reported September 24th 2015 from the Refractory Zone.

The La Loutre property consists of contiguous claim blocks totalling approximately 2,867.29 hectares (28.67

km2situated approximately 53 km east of Imerys Carbon and Graphite, formerly known as the Timcal Graphite Mine,

North America’s only operating graphite mine, and 117 km northwest of the International Port of Montreal, key to

shipping to North America and Europe. The Lac des Iles Property is directly west of the Imerys Graphite Mine. Lomiko

is currently completing the 2nd option to acquire 80% of the La Loutre and Lac des Iles properties which requires

$580,000 work expenditure between La Loutre property and others Canada Strategic properties.

The La Loutre Resource is constrained within a drilled area of approximately 900 m along the N150° striking trend of

the graphitic paragneiss, 250 m across the strike and 225 m below surface. Geological interpretation and estimation

were based on 62 NQ drill holes (totaling 8193.3 m) drilled by Lomiko and Canada Strategic Metals in 2014 and 2015.
 

Users who are viewing this thread

Back
Alto