| From: pstad60 | 4/26/2023 11:10:29 AM | | | | | | Researchers look beyond silicon to potentially double solar cell efficiency
A team at Colorado State University proposes making thin-film solar cells from naturally abundant molybdenum disulfide.
APRIL 20, 2023 ANNE FISCHER
RESEARCH COLORADO
CSU researchers Yusef Farah and Rachelle Austin with the ultrafast pump-probe transient absorption spectrometer they used to measure charge carrier properties of molybdenum disulfide thin films.
Image: John Eislele
Most solar panels used today are made from silicon, a well-tested semiconductor material that is not without limitations. For example, silicon loses up to 40% of the energy it collects from sunlight in the form of heat waste. Researchers at Colorado State University (CSU) are studying radical new ways to improve solar power and provide more options for the future.
CSU chemists are proposing to make solar cells using an abundantly available natural material called molybdenum disulfide. Using a combination of photoelectrochemical and spectroscopic techniques, the researchers conducted a series of experiments showing that extremely thin films of molybdenum disulfide display unprecedented charge carrier properties that could someday drastically improve solar technologies.
The experiments were led by chemistry Ph.D. student Rachelle Austin and postdoctoral researcher Yusef Farah. Austin works jointly in the labs of Justin Sambur, associate professor in the Department of Chemistry, and Amber Krummel, associate professor in the same department. Farah is a former Ph.D. student in Krummel’s lab. Their work is published in Proceedings of the National Academy of Sciences.
Sambur’s lab became interested in molybdenum sulfide as a possible alternative solar material based on preliminary data on its light absorption capabilities even when only three atoms thick, explained Austin.
The collaboration made use of Sambur’s expertise in solar energy conversion using nanoscale materials, and Krummel’s expertise in ultrafast laser spectroscopy, both of which helped them understand how different materials are structured and how they behave.
Krummel’s lab contains a state-of-the-art ultrafast pump-probe transient absorption spectrometer that can very precisely measure the sequential energy states of individual electrons as they are excited with a laser pulse. Experiments using this spectrometer can provide snapshots of how charges flow in a system.
Austin created a photoelectrochemical cell using a single atomic layer of molybdenum sulfide, and she and Farah used the pump-probe laser to track the cooling of electrons as they moved through the material. What they found was astoundingly efficient light-to-energy conversion. More importantly, the laser spectroscopy experiments enabled them to show why this efficient conversion was possible.
What they learned was that the material could convert light to energy so well because its crystal structure allows it to extract and exploit the energy of so-called hot carriers, which are highly energetic electrons that are briefly excited from their ground states when hit with enough visible light. The researchers found that in their photoelectrochemical cell, the energy from these hot carriers was immediately converted into photocurrent, as opposed to being lost as heat, which gave it an advantage over conventional silicon solar cells.
“This work paves the way for knowing how to design reactors that contain these nanoscale materials for efficient and large-scale hydrogen production,” Sambur said.
The project was a collaboration with Professor Andrés Montoya-Castillo and Dr. Thomas Sayer of University of Colorado Boulder, who contributed theoretical chemistry and computational modeling to help explain and verify the experimental data.
“The discovery required a ‘team science’ approach that brought together many different types of expertise, in computational, analytical and physical chemistry,” Krummel said.
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Source :
pv-magazine-usa.com
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| From: pstad60 | 5/11/2023 5:29:04 PM | | | | | | Stuhini Exploration will be in attendance at the Vancouver Metals Investor Forum
to be held on May 26 and 27 at the Rosewood Hotel Georgia in Vancouver B.C.
metalsinvestorforum.com
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Refer back to Stuhini CEO Dave O'Brien's previous presentaion at the Toronto Metals Investor Forum in early March 2023
m.youtube.com
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Anlalyst Chen Lin who recommends Stuhini as a buy, also interviewed Dave O'Brien at the Toronto Forum
m.youtube.com
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Hope to hear an update about Stuhini's exploration plans for 2023.
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| From: pstad60 | 6/1/2023 12:06:52 AM | | | | | | Chen Lin interviews Stuhini CEO Dave O'Brien
Stuhini CEO Dave O'Brien attended the May 26/27 2023 Vancouver Metals Investor Forum.
Chen Lin is the first well known analyst to recommend Stuhini as a buy, and he has
participated in the recent financings by the company.
Link to the 10 minute interview with Chen Lin and Dave O'Brien:
m.youtube.com
Dave O'Brien also put on a 10 minute presentation of Stuhini on Friday May 26 :
m.youtube.com
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| From: pstad60 | 6/6/2023 9:49:56 AM | | | | | | Stuhini Exploration Completes Acquisition of Ruby Creek Molybdenum Property
VANCOUVER, BC, June 6, 2023 /CNW/ - Stuhini Exploration Ltd. ("Stuhini" or the "Company") (TSXV: STU) (OTCPK: STXPF) is pleased to announce that it has completed the exercise of its option and now owns a 100% interest in the Ruby Creek project (the "Ruby Creek Project" or the "Property") located in northwestern British Columbia, Canada.
Pursuant to an option agreement dated July 29, 2019, as amended October 28, 2019 (the "Option Agreement") between the Company and Global Drilling Solutions Inc. ("Global Drilling"), Global Drilling granted the Company an option to acquire a 100% interest in the Property by issuing an aggregate total of 7,300,000 common shares of the Company ("Common Shares") and making aggregate cash payments of $1,060,000 to Global Drilling over a four-year term, subject to acceleration at the sole discretion of the Company, on such terms and conditions provided for in the Option Agreement (see news releases dated July 30, 2019 and November 20, 2019).
In accordance with the Option Agreement, prior to the date hereof, the Company had issued to Global Drilling an aggregate total of 5,550,000 Common Shares and has made cash payments to Global Drilling in an aggregate total amount of $420,000. The Board of Directors of the Company (the "Board") has unanimously determined that it is in the best interests of the Company to accelerate the final option payment (the "Final Option Payment") consisting of the issuance of 1,750,000 Common Shares and the payment of $640,000 to Global Drilling pursuant to the terms of the Option Agreement. The Company fulfilled the Final Option Payment and exercised its option to acquire the Property on June 5, 2023.
Mr. Dave O'Brien, President and Chief Executive Officer of Stuhini stated: "This is a milestone event for Stuhini given the potential of the Property and the leverage we believe it provides on the molybdenum space. The Board voted unanimously to complete the exercise of the option for the Property early in order to attain 100% ownership because we believe that it positions the Company more favourably to search for a potential suitor or strategic partner. The price of molybdenum, based on the LME Platts Molybdenum futures prices, has more than doubled since we first optioned the Property. The Board also considers that the remaining of 26,989 hectares of the Property outside of the 2,466-hectare lease associated with the molybdenum deposit is prospective for base and precious metals and provides additional potential value to the Property beyond the molybdenum resource.
Early Warning Disclosure:
Global Drilling is beneficially owned by Barry Hanslit, a co-founder of the Company and the vendor of the Property. Immediately prior to the Final Option Payment, Mr. Hanslit beneficially owned or controlled 6,800,000 Common Shares representing approximately 15.2% of the outstanding Common Shares on an undiluted basis. Immediately after the completion of the Final Option Payment, Mr. Hanslit beneficially owned or controlled 8,550,000 Common Shares, representing approximately 18.4% of the outstanding Common Shares on an undiluted basis, representing an increase in holdings of approximately 3.2%.
Mr. Hanslit has advised the Company that the Common Shares are being held for investment purposes. Mr. Hanslit has a long-term view of the investment and may acquire additional securities of the Company including on the open market or through private acquisitions or sell securities of the Company including on the open market or through private dispositions in the future depending on market conditions, reformulation of plans and/or other factors that Mr. Hanslit considers relevant from time to time.
A copy of the applicable early warning report will be filed on behalf of Mr. Hanslit on the Company's profile on SEDAR and may also be obtained by contacting Mr. Hanslit at (604) 639-2278, 8621 Forest Ridge Drive, Whistler, BC V8E 0G1.
Ruby Creek Project:
The 29,479-hectare Ruby Creek Project is road accessible and located 14 kilometres (km) east of Atlin, British Columbia ("BC"). There are 48 different documented mineral occurrences on the Property, of which 16 are gold-related, with 7 significant gold placer creeks. The Property also hosts the Ruby Creek Molybdenum deposit, which hosts a measured and indicated pit constrained resource of 433 million lbs molybdenum using US$15.00 per lb molybdenum prices and a 0.02% cut-off grade.1 Stuhini owns 100% of the Ruby Creek Project.
About Stuhini Exploration Ltd.
Stuhini is a mineral exploration company focused on the exploration and development of precious and base metals properties in western Canada and south-western USA. The Company's portfolio of exploration properties includes: its flagship, the Ruby Creek Project located approximately 14 km east of Atlin, BC; the Que Project located approximately 70 km north of Johnson's Crossing in the Yukon; the South Thompson Project located approximately 35 km northwest of Grand Rapids, Manitoba; the Big Ledge Property located approximately 57 km south of Revelstoke, BC; and a portfolio of properties in south-east Arizona.
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Ehsan Salmabadi, P. Geo. Vice President Exploration, is the Qualified Person for the Company and has also validated and approved the technical and scientific content of this news release.
1
| See "Technical Report, Ruby Creek Project, Northern British Columbia, Canada" effective March 10, 2022 and dated April 22, 2022 authored by Steven Ristorcelli, C. P. G., Peter Ronning, P. Eng., Finley Bakker, P. Geo., and John Eggert, P. Eng.
|
For further information:
David O'Brien, President & Chief Executive Officer,
Telephone: (604) 835-4019,
Email: dobrien@stuhini.com
Source:
https://www.newswire.ca/news-releases/stuhini-exploration-completes-acquisition-of-ruby-creek-molybdenum-property-812388748.html
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| From: pstad60 | 6/6/2023 12:41:03 PM | | | | | | With the completion of the final option payment for the Ruby Creek Project announced this morning, the share structure is now roughly :
Current shares issued and outstanding as of June 6, 2023 :
46,279,594 common shares and 8,355,128 warrants
(2,260,066 warrants exercisable @ $0.60 expiring August 2024)
(2,001,092 warrants exercisable @ $0.35 expiring December 20, 2024)
(1,071,020 warrants exercisable @ $0.35 expiring January 13, 2025)
(3,022,950 warrants exercisbale @ $0.50 expiring March 20, 2025)
If all of the warrants are eventually exercised the oustanding shares would be 54,634,722.
If all warrants are exercised, the company would received approx $5,942,753 in cash.
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The best example of how undervalued Stuhini shares are is to refer to the last acquisition of a molybdenum
deposit which occurred in October 2022 by Zijin Mining Group
www1.hkexnews.hk
The purchase price of RMB5.61 Billion worked out to approx US$0.16 / lb in the gournd .
When Zijin Miming completed the acquisition of the Shapinggou molybdenum mine, molybdenum was trading just below US$20.00 / lb.
.
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Stuhini has a pit constrained resource of 476.5 million lbs of moly in the ground in measured, indicated
and inferred categories
If a major mining firm was interested in buying the Ruby Creek moly deposit outright,
using Zijin Mining's purchase price of US$0.16 / lb would equate to :
US$0.16 X $1.34 exchange rate X 476.5 million lbs = C$102,161,600
C$102,161,600 / 54,634,753 shares O/S (warrants fully exercised) = C$1.87 / share
for the Ruby Creek Moly deposit which is now 100% owned by Stuhini with the completion of the final option payment announced this morning.
Current moly prices are currently trading above that level :
lme.com
1 month contract : US$22.95 / lb
2 thru 15 month : UIS$22.42 / lb
Daily Spot :
dailymetalprice.com
US$23.53 / lb
.
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| From: pstad60 | 8/12/2023 1:04:07 AM | | | | | | New Interview with Stuhini CEO Dave O'Brien
Posted on August 10.
˜500M lbs of Molybdenum in Canada | Stuhini Exploration CEO Interview
m.youtube.com
Just over 1 hour in length
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| From: pstad60 | 9/6/2023 9:15:40 AM | | | | | | Stuhini Exploration Announces OTCQB Listing and DTC Eligibility
VANCOUVER, BC, Sept. 6, 2023 /CNW/ - Stuhini Exploration Ltd. ("Stuhini" or the "Company") (TSXV: STU) (OTCQB: STXPF) is pleased to announce that its common shares are now quoted for trading on the OTCQB venture market (the "OTCQB") under the symbol "STXPF". The Company has also received The Depository Trust Company (the "DTC") eligibility in the United States, thus allowing the Company's stock to be more easily traded by and accessible to US institutional and retail investors.
Dave O'Brien, Company President and CEO stated: "We have experienced strong US investor interest over the past year, with several US based investors participating in our most recent financing. Accordingly, we are pleased to have been quoted for trading on the OTCQB Venture Market and to have received DTC eligibility, both of which will aid in our goal of increased visibility and share liquidity for both existing and new US based shareholders."
The OTCQB allows early stage and developing companies the benefit of being publicly traded in the United States. Eligible companies must be current in their financial reporting, pass a minimum bid test and undergo an annual verification and management certification process.
DTC is a subsidiary of the Depository Trust & Clearing Corporation, a US based company that manages the electronic clearing and settlement of publicly traded companies. Securities that are eligible to be electronically cleared and settled through DTC are considered to be "DTC eligible".
The Company also announces it has recently joined the International Molybdenum Association (the "IMOA") and Company chairman Tony Fogarassy is presently attending and representing Stuhini at the 2023 IMOA Annual General Meeting being held in Santiago Chile. The IMOA is non-profit trade association representing the molybdenum industry.
About Stuhini Exploration Ltd.
Stuhini is a mineral exploration company focused on the exploration and development of precious and base metals properties in western Canada and south-western USA. The Company's portfolio of exploration properties includes: its flagship, the Ruby Creek Project located approximately 14 km east of Atlin, BC; the Que Project located approximately 70 km north of Johnson's Crossing in the Yukon; the South Thompson Project located approximately 35 km northwest of Grand Rapids, Manitoba; the Big Ledge Property located approximately 57 km south of Revelstoke, BC; and a portfolio of properties in south-east Arizona.
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Forward-Looking Statements
This news release contains "forward-looking information" within the meaning of Canadian securities laws, which may include, but are not limited to statements relating to increased visibility and share liquidity in the United States. All statements in this release, other than statements of historical facts, that address events or developments that the Company expects to occur, are forward-looking statements. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results may differ materially from those in the forward-looking statements. Factors that could cause the actual results to differ materially from those in forward-looking statements include regulatory actions, fluctuations in metal and commodity prices, market prices and exchange rates, failure to obtain permits, and continued availability of capital and financing, and general economic, market or business conditions. Such forward-looking information reflects the Company's views with respect to future events and is subject to risks, uncertainties and assumptions, including those set out in the Company's prospectus. Investors are cautioned that any such statements are not guarantees of future performance and actual results or developments may differ materially from those projected in the forward-looking statements. There can be no assurance that any forward-looking statements or information will prove to be accurate as actual results and future events could differ materially from those anticipated in such statements or information. Accordingly, readers should not place undue reliance on forward-looking statements or information. Except as required by applicable securities laws, the Company undertakes no obligation to update these forward-looking statements in the event that management's beliefs, estimates or opinions, or other factors, should change.
SOURCE Stuhini Exploration Ltd.
View original content to download multimedia:
newswire.ca
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| To: pstad60 who wrote (107) | 12/10/2023 12:25:44 PM | | From: pstad60 | | | | STUHINI PROVIDES EXPLORATION UPDATE ON VOLCANIC CREEK MOLYBDENUM TARGET
Vancouver, Canada – November 28th, 2023 – Stuhini Exploration Ltd. (the “Company” or Stuhini”) (TSX-V: STU and OTCQB:STXPF) is pleased to provide an update on 2023 exploration at its Volcanic Creek Molybdenum target, part of its Ruby Creek Project (the “Project” or “Property” or “Ruby Creek”) located 14 kilometres (km) east of Atlin, BC. The target is located approximately 4 km north of the Company’s flagship Ruby Creek Molybdenum Deposit.
Summary
- 9 rock grab samples taken ranging from 1.01 % molybdenum (“Mo”) to 0.017 % Mo.
- Mineralization style similar to Ruby Creek.
- Up to 900 meters (m) distance between outcrops with significant Mo mineralization.
View fullsize
Note that rock grab samples are selective by nature and values reported may not represent the true grade or style of mineralization across the target area.
Dave O’Brien, Stuhini’s President and CEO commented: “The presence of extensive molybdenum mineralization 4 km north of the Ruby Creek Molybdenum Deposit further exhibits the prospectivity of the Ruby Creek Project. We are excited to explore this target in the hopes of adding an additional satellite deposit within close proximity to the Ruby Creek Molybdenum Deposit we currently have.”
Mineralization consists of coarse rosettes in quartz veins and molybdenum veinlets analogous to those at the Ruby Creek Molybdenum Deposit found in float and outcrop. Mineralization is hosted in older rock units than the Ruby Creek Molybdenum Deposit but is likely to be similar in age to the Ruby Creek Molybdenum Deposit. The Company plans to follow up in the summer of 2024.
About Volcanic Creek Molybdenum Target
The Company acquired the Volcanic Creek Molybdenum target by staking 848.1 hectares (“ha”) in 1 new claim block contiguous to the north of its existing Ruby Creek tenures in February 2023 (see February 17, 2023 new release). The new claim, which was consolidated into the Company’s Ruby Creek Project, is situated in the headwaters of Volcanic Creek and is referred to as the “Volcanic Creek Moly” showing in BC Minfiles. Previous historic exploration work reported mineralization at surface and includes two drill holes drilled by Placer Development Ltd. in 1981. Hole DDH 81-1 intersected 24.38 m of 0.066% molybdenum disulfide (“MoS2”) (0.040% Mo) starting at a depth of 33.53 m, including 6.10 m of 0.14 MoS2 (0.082 % Mo).
QA/QC protocol: Rock material was collected in poly bags and then transported to the Bureau Veritas sample preparation facility located in Whitehorse, Yukon. Samples were crushed, and then pulps were sent to the Bureau Veritas lab in Vancouver for assay. Four acid digestion and Ultratrace ICP-MS analysis for 59 elements and fire assay for gold were performed on all samples. Over-limit copper, lead, zinc and silver samples were analyzed by multi-acid digestion and ICP-ES (MA370). Over-limit tungsten was analyzed with lithium borate fusion XRF (XF750). Silver samples >1500 g/t were also analyzed by fire assay (FA530) and lead samples >10% with titration (GC817). Over-limit tungsten (“W”) was analyzed with lithium borate fusion XRF (XF750). Conversion to WO 3 % = W % x 1.2616. All results have passed the QA/QC screening by the lab.
Ruby Creek Project: The 29,479-hectare Ruby Creek Project is road accessible and located 14 kilometres (km) east of Atlin, British Columbia (“BC”). There are 48 different documented mineral occurrences on the Property, of which 16 are gold-related, with 7 significant gold placer creeks. The Property also hosts the Ruby Creek Molybdenum deposit, which hosts a measured and indicated pit constrained resource of 433 million lbs molybdenum using US$15.00 per lb molybdenum prices and a 0.02% cut-off grade. [1] Stuhini owns 100% of the Ruby Creek Project subject to a 1% NSR.The geological content of this news release has been reviewed and approved by Ehsan Salmabadi, P. Geo., and VP Exploration and Project Development of Stuhini, a qualified person as defined under the terms of National Instrument 43-101.
The geological content of this news release has been reviewed and approved by Ehsan Salmabadi, P. Geo., and VP Exploration and Project Development of Stuhini, a qualified person as defined under the terms of National Instrument 43-101.
[1] See “Technical Report, Ruby Creek Project, Northern British Columbia, Canada” effective March 10, 2022 and dated April 22, 2022 authored by Steven Ristorcelli, C. P. G., Peter Ronning, P. Eng., Finley Bakker, P. Geo., and John Eggert, P. Eng.
About Stuhini Exploration: Stuhini, a mineral exploration company, is focused on exploration and development of precious and base metals properties in western Canada and the southwest United States. The Company’s portfolio of exploration properties includes the flagship Ruby Creek Property, 14 km east of Atlin, BC; the Que Project, 70 km north of Johnson’s Crossing, Yukon; the South Thompson Nickel Project, 35 km northwest of Grand Rapids, Manitoba; the Big Ledge Property, 57 km south of Revelstoke, BC; and a portfolio of 2 properties in southeast Arizona.
For further information please contact:
David O’Brien
President & Chief Executive Officer
Stuhini Exploration Ltd.
Email: dobrien@stuhini.com
Phone: (604) 835-4019
Web: www.stuhini.com
Source : stuhini.com
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| To: pstad60 who wrote (108) | 12/10/2023 12:37:35 PM | | From: pstad60 | | | | Stuhini Exploration provides an update at Volcanic Creek Molybdenum target, Ruby Creek Project in BC
Posted on November 28, 2023
m.youtube.com
Included is an approx 2 minute update from CEO Dave O'Brien .
6:35 minutes in length
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