Saturday, November 30, 2024
Friday, November 29, 2024
Wednesday, November 20, 2024
Tuesday, November 19, 2024
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Friday, November 15, 2024
Thursday, November 14, 2024
Wednesday, November 13, 2024
Tuesday, November 12, 2024
Monday, November 11, 2024
China Begins Construction of Landmark Green Hydrogen Project In Ningxia Region
https://fuelcellsworks.com/2024/11/11/green-hydrogen/china-begins-construction-of-landmark-290m-green-hydrogen-project-in-ningxia-region
Does Methanol Electrolysis Require Electrolyte Addition?
Gemini (AI Google): Methanol electrolysis does not require an electrolyte. The process involves the direct electrochemical oxidation of methanol at the anode, releasing hydrogen ions and electrons. These electrons then migrate to the cathode, where they reduce hydrogen ions to produce hydrogen gas.
The absence of an electrolyte simplifies the process and reduces the potential for side reactions. However, the efficiency of methanol electrolysis can be influenced by factors such as the catalyst used and the operating conditions.
Can Methanol Be Electrolyzed at 0.3V? Gemini (AI Google)
Gemini (AI Google) Q: can methanol be electrolyzed at 0.3 V?
A: Yes, methanol can be electrolyzed at 0.3 V. In fact, research has shown that methanol electrolysis can be achieved at significantly lower voltages compared to water electrolysis. This is due to the lower overpotential required for the methanol oxidation reaction at the anode.
However, it's important to note that while the theoretical minimum voltage for methanol electrolysis is quite low, practical implementations may require higher voltages to overcome various overpotentials and achieve reasonable reaction rates. Factors such as catalyst efficiency, membrane resistance, and operating conditions can influence the actual voltage required for efficient electrolysis.
Recent advancements in electrocatalyst design and membrane technology have shown promising results in reducing the energy input required for methanol electrolysis. By optimizing these components, it may be possible to achieve practical hydrogen production from methanol at voltages closer to the theoretical minimum.
Methanol Electrolysis Outline
Methanol electrolysis is a process that uses an electrolytic cell to produce hydrogen and carbon dioxide from a methanol-water solution:
- A methanol-water solution is fed into the anode compartment of an electrolytic cell.
- DC power is applied, causing methanol to react with water at the anode.
- The reaction produces carbon dioxide, protons, and electrons at the anode.
- The protons move through the electrolyte to the cathode, while the electrons move through the external circuit to the cathode.
- At the cathode, the electrons combine with the protons to produce hydrogen.
- The carbon dioxide is vented outside, and the hydrogen is purified to remove any remaining water or methanol.
- Lower voltageThe theoretical voltage required for methanol electrolysis is 0.02 V, which is much lower than the 1.23 V required for water electrolysis.
- Hydrogen and carbon dioxide separationThe hydrogen and carbon dioxide are separated into different compartments, so there's no need to purify the hydrogen to remove carbon dioxide.
- Integrated solutionsMethanol electrolysis can be used in integrated solutions, such as small-scale hydrogen generation using solar photovoltaics.
Sunday, November 10, 2024
USA Air Force Pursues Green Hydrogen via Geothermal Energy
https://cleantechnica.com/2024/11/10/us-air-force-pursues-green-hydrogen-via-geothermal-energy/
Saturday, November 9, 2024
Friday, November 8, 2024
AI (Google). Nickel Boride Electroplate on Graphite Felt?
Gemini (AI Google): can nickel boride be electroplated out on graphite felt?
Yes, a stainless steel anode can be used to plate nickel onto graphite felt.
While stainless steel is not an ideal anode material for all electroplating processes, it can be suitable for nickel plating onto a porous substrate like graphite felt.
Here's why:
- Nickel Source: Stainless steel contains nickel, which can dissolve into the electrolyte solution during the electrolysis process, providing a source of nickel ions.
- Porous Substrate: Graphite felt has a high surface area, allowing for good adhesion of the nickel coating.
- Electrolyte Solution: The choice of electrolyte solution is crucial. A suitable electrolyte, such as a Watts nickel plating solution, can provide the necessary ions and conditions for nickel deposition.
However, it's important to note that the efficiency and quality of the nickel plating process can be influenced by several factors:
- Stainless Steel Grade: The type of stainless steel used can affect the rate of nickel dissolution and the purity of the deposited nickel.
- Electrolyte Composition: The concentration of nickel ions, pH, and temperature of the electrolyte solution can impact the plating rate and the quality of the coating.
- Current Density: The applied current density can influence the morphology and adhesion of the nickel coating.
By carefully controlling these factors, it is possible to achieve a successful nickel plating process using a stainless steel anode and graphite felt as the cathode.
The Hydrogen Economy
All aspects of water electrolysis, electrodes, hydrogen evolution, creation, manufacture, transport and storage.
AI & Self-Expression
"AI & Self-Expression" (2025) David S. Soriano. Creative Commons. Use put credit artist.
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https://www.powerengineeringint.com/hydrogen/hydrogen-underfoot-a-more-than-200-year-supply/
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"AI & Self-Expression" (2025) David S. Soriano. Creative Commons. Use put credit artist.
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https://fuelcellsworks.com/2024/12/02/clean-energy/global-race-to-unlock-subterranean-hydrogen-the-future-of-limitless-clean-energy
