Melbourne researchers use sound waves to boost green hydrogen production 14-fold

[Caribbeans]

PhD researcher Yemima Ehrnst holding the acoustic device the research team used to boost the hydrogen production. Image: RMIT University

Melbourne researchers use sound waves to boost green hydrogen production 14-fold

PV-Magazine-australia | Bella Peacock | December 13, 2022

Melbourne researchers have discovered sound waves can be used to “divide and conquer” water molecules during electrolysis, a process where electricity runs between two electrodes to split H2O molecules into oxygen and hydrogen gases which appear as bubbles.

“The electrical output of the electrolysis with sound waves was about 14 times greater than electrolysis without them, for a given input voltage. This was equivalent to the amount of hydrogen produced,” RMIT engineering PhD researcher Yemima Ehrnst said.

The research, published in journal Advanced Energy Materials, is also consequential for bringing down green hydrogen’s production costs.

“One of the main challenges of electrolysis is the high cost of electrode materials used, such as platinum or iridium,” RMIT Associate Professor and research lead Amgad Rezk said. By using sound waves to unlock more hydrogen, Rezk says it “eliminates” the need for expensive and corrosive materials like platinum or iridium... more
https://www.pv-magazine-australia.com/2022/12/13/melbourne-researchers-use-sound-waves-to-boost-green-hydrogen-production-14-fold/

RELATED:

Greek physicist Petros Zografos and his Hydrogen Energy Machine

Just before the end of 2016. the US based PBS network ran a story on Greek physicist Petros Zografos and his Energy Machine. Then they withdrew the clip with the following explanation:

“There have been questions raised concerning our report that aired on Dec. 27, 2016 about a Greek inventor who is developing a device that purports to turn water into power without requiring additional energy. Despite a team of Greek scientists praising the research, and the inclusion of an independent scientist dubious of the work, the News Hour acknowledges that our reporting of this segment should have been more skeptical. Our reporting and research should always ask more questions and seek greater insight. We are examining each step in our process, and we apologize to our audience for the lapses in this report. The PBS NewsHour is dedicated to presenting clear and thorough reporting on developments in science and technology, and we will be following up with more reporting on the important subject of clean energy as soon as possible.”

The core of the invention is the production of hydrogen and oxygen (hydroxy) from plain refreshing water from the tap or sea using high frequency electromagnetic pulse (in Terahertz Scale). These pulses have a frequency that "coordinate" the molecule of water, resulting in its decay. Petros Zografos as an excellent electronic Engineer invented a new way to multiply pulses @ 3 phases to achieve a high frequency result and thus discovered a new method of decomposition of molecules of water and hydrogen production: the PALMOLYSIS

Petros website: http://www.hellagen.gr/

Petros might be on to something here

[eppur_se_muova]

1. That second story reads like gobbledygook. PBS was right to retract. nt

[NNadir]

2. Wow!!! What a great demonstration of the inability of journalists at PV Magazine to interpret a...

...scientific paper.

It's a ready made classic demonstration of my oft stated thesis that one cannot get a degree in journalism if one has passed a college level science course with a grade of C or better.

The full paper is open sourced and can be found here: Acoustically-Induced Water Frustration for Enhanced Hydrogen Evolution Reaction in Neutral Electrolytes (Advanced Energy Materials, Early View, accessed 12/18/22.)

The paper does not demonstrate "boosting" the production of hydrogen by electrolysis. Rather it discusses increasing the rate of hydrogen production, albeit at the expense, represented by the energy consumed for the generation of ultrasound, lowering the thermodynamic efficiency even further.

By the way, zillions of scientific papers are written about replacing platinum in electrolysis. None of them have made the hydrogen fantasy a reality, after piling on decades of bullshit.

Here's one from 1991, 31 years ago: Stucki, S., Kötz, R., Carcer, B. et al. Electrochemical waste water treatment using high overvoltage anodes Part II: Anode performance and applications. J Appl Electrochem 21, 99–104 (1991).

Here's another from 1987: H. Iwahara, H. Uchida, I. Yamasaki, High-temperature steam electrolysis using SrCeO3-based proton conductive solid electrolyte, International Journal of Hydrogen Energy, Volume 12, Issue 2, 1987, Pages 73-77,

If one cannot tell the difference between rate of production and production itself, more over, if one thinks that electrolysis increases electrical output one is just stumbling around insipidly spreading worthless rumors based on misinterpretation. In addition if one thinks that platinum is corrosive, one is completely ignorant of the very basic facts of metallurgy.

The writers at PV Magazine should look for a real job, one as far away from scientific publications as possible. Writing at the scientific equivalent of the National Enquirer is not a worthy career. It only spreads wishful thinking and complacency.