Free Energy Ping!......................
The radical enviromentalists will find many reasons to oppose this form of energy. For them it is about controlling our lives.
Oh sure. Then what happens when we ruin all the seawater? It’s bad enough that ships crush so much seawater everyday. Makes me want to hug a stone crab or something. 😲
The article didn’t address the problem that sea water is more than just pure H2O. Sea water in particular has a lot of minerals and salts.
This material will be in clot shots next week.
Nobody will pay extra for clean.
They want cheap energy, and they can’t do that without subsidies. If there are subsidies, then it isn’t economically feasible or cheap.
[Think ethanol from corn in your gasoline. It doesn’t work without subsidies; and even then it’s not as good.]
So the new wonder material only costs $10,000 per ounce to make?
What happens to the earth when we have tens of millions of pounds of these “nano-scale” materials set loose?
The author says the scientists “achieved long-term stability for more than 200 hours.” TWO HUNDRED hours is “long term”? Have they bothered to calculate the number of hours in a year (8,760)? A commercial system will have to run 75% to 80% of the time year after year without breaking down. That’s about 7,000 hours per year of run-time with the other 1,760 hours set aside for unplanned and planned maintenance outages.
I wish them luck, but it’s a long, tough chemical and mechanical engineering journey from lab-scale to highly reliable, economical, commercial scale.
And just exactly where does the energy come from to drive the electrolysis in the first place - cold fusion?
Then, add to this the myriad of problems that using hydrogen creates:
Heavy and large storage tanks
Embrittlement of metal distribution pipes
Low energy density
Inability to liquify
Leakage due to small molecular size
Very high storage pressures
.
.
.
How long before the Chicoms steal this technology?
I think the best way for a hydrogen economy is to split seawater to hydrogen and oxygen, but use genetically-engineered kelp plants to create gaseous nodules of hydrogen for harvesting. Use sunlight/photosynthesis.
How much power does it take to accomplish the split? Will the cost be prohibitive?
Ok, from what I’m reading they built a better electrolysis plate. However, the energy deficit will be the larger problem. You have to input energy to run electrolysis. Where’s that energy come from?
For the water itself, natural evaporation is simple; think of a lifeboat emergency fresh water kit, writ large. No power source needed except to pump in the seawater and pump away the fresh water. Byproduct of useful sea salt and minerals, too.
Grampa’s dream of perpetual motion has finally been achieved. To bad he’s not around to see it.
Electrolysis requires energy - electricity. The ‘miracle Green fuel’, hydrogen, is produced using electricity produced by some other means, solar, wind, hydro, fossil fuel or nuclear.
Then there is also electricity produced by legislative fiat!
“You know, “Stroke of the pen, law of the land! Kind of cool!” Paul Begala, Bill Clinton advisor
Ooops, the Laws of Physics and Chemistry are not subject to the Law of the Land, no matter what leftist politicians, environmentalist and MSM pundits believe.
If the aforementioned experts really wanted to solve the “Carbon Crisis” and the water crisis, they’d get their billionaire donors to invest in Molten Salt Thorium reactors, Small Modular Reactors, etc. Use thes to run desalination plants, hydrogen plants, nuclear waste conversion plants.
ThorCon
FLiBe
Elysium Industries
Dual-Doping and Synergism toward High-Performance Seawater Electrolysis
Jinfa Chang,Guanzhi Wang,Zhenzhong Yang,Boyang Li,Qi Wang,Ruslan Kuliiev,Nina Orlovskaya,Meng Gu,Yingge Du,Guofeng Wang,Yang Yang,
First published: 08 July 2021 https://doi.org/10.1002/adma.202101425
Abstract
Hydrogen (H2) production from direct seawater electrolysis is an economically appealing yet fundamentally and technically challenging approach to harvest clean energy. The current seawater electrolysis technology is significantly hindered by the poor stability and low selectivity of the oxygen evolution reaction (OER) due to the competition with chlorine evolution reaction in practical application.
Herein, iron and phosphor dual-doped nickel selenide nanoporous films (Fe,P-NiSe2 NFs) are rationally designed as bifunctional catalysts for high-efficiency direct seawater electrolysis. The doping of Fe cation increases the selectivity and Faraday efficiency (FE) of the OER.
While the doping of P anions improves the electronic conductivity and prevents the dissolution of selenide by forming a passivation layer containing P–O species. The Fe-dopant is identified as the primary active site for the hydrogen evolution reaction, and meanwhile, stimulates the adjacent Ni atoms as active centers for the OER.
The experimental analyses and theoretical calculations provide an insightful understanding of the roles of dual-dopants in boosting seawater electrolysis. As a result, a current density of 0.8 A cm−2 is archived at 1.8 V with high OER selectivity and long-term stability for over 200 h, which surpasses the benchmarking platinum-group-metals-free electrolyzers.
https://onlinelibrary.wiley.com/doi/full/10.1002/adma.202101425
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Harvesting Hydrogen from Seawater Would Give Us an Abundant Sustainable Energy Option
By lenrosen4 -August 17, 20210
https://www.21stcentech.com/harvesting-hydrogen-seawater-give-abundant-sustainable-energy-option/
Yang Yang has been working on developing hydrogen extraction from seawater technologies for more than a decade. Image credit: University of Central Florida
A University of Central Florida (UCF)research team has invented a nanoscale material that can split seawater into oxygen and hydrogen using electrolysis. Their invention was recently described in a paper entitled, Dual-Doping and Synergism toward High-Performance Seawater Electrolysis appearing in the July 8, 2021 issue of the journal Advanced Materials. Prior to this discovery, seawater electrolysis was problematic, and expensive using platinum-group-metals-based filtering technologies.
The UCF researchers developed an alternative made from iron with phosphor dual-doped nickel selenide nanoporous film that in initial testing has demonstrated stability and long-duration capability which may prove to be an energy industry gamechanger.
In a July announcement from the University, Yang Yang, Associate Professor in the NanoScience Technology Center is quoted as stating, “This development will open a new window for efficiently producing clean hydrogen fuel from seawater.” He continues, “The seawater electrolysis performance achieved by the dual-doped film far surpasses those of the most recently reported, state-of-the-art electrolysis catalysts and meets the demanding requirements needed for practical application.” In a 200-hour test of the film, it held up producing hydrogen from seawater continuously. The film is not expensive to produce and is scalable for industrial applications.
The hydrogen produced using this nanofilm is classified as green. Electrolysis is the preferred route to go in producing hydrogen because there are zero emissions if the energy source is not fossil-fuel-based. That’s why the green hydrogen classification, as opposed to blue and grey hydrogen, is preferred.
If unfamiliar with these classifications of hydrogen fuels, blue hydrogen gets produced from fossil fuels when the resulting carbon emissions are captured and sequestered. Grey hydrogen produced from fossil fuels allows carbon emissions to get into the atmosphere. The fossil fuel industry, in its greenwashing efforts and to ensure continued profits from developing new fields to harvest, wants the public to buy into hydrogen produced from oil and gas.
In a world turning away from the burning of fossil fuels because of climate change, hydrogen from seawater would be a breakthrough of global significance. Hydrogen is ideal alternative energy for use in transportation, buildings, and homes where it can be used to recharge fuel cells or if compressed used for heating. Hydrogen, as opposed to natural gas, can be used by utilities in power plants as a backup or supplement to renewable energy generation from wind, solar, tidal and wave sources.
Yang’s research team’s expertise in advanced materials with application for use in renewable energy devices, environmental science, and smart electronics is focused on novel cutting-edge technologies that are much needed over this next decade in our fight to keep atmospheric warming from exceeding the 1.5-Celsius threshold established by the IPCC and Paris Climate Agreement and to stabilize the planet’s climate future.
So, that’s what Yang says.