It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
CSIRO principal research scientist Michael Dolan said it was a very exciting day for a project that has been a decade in the making.
"We started out with what we thought was a good idea, it is exciting to see it on the cusp of commercial deployment," he said.
What's the fuss about? The membrane breakthrough will allow hydrogen to be safely transported and used as a mass production energy source.
"We are certainly the first to demonstrate the production of very clean hydrogen from ammonia," Dr Dolan said.
"Today is the very first time in the world that hydrogen cars have been fuelled with a fuel derived from ammonia — carbon-free fuel."
CSIRO researchers found a way to turn Australian-made hydrogen into ammonia, meaning it could be shipped safely to the mass market of Asia.
CSIRO chief executive Larry Marshall was one of the first to ride in the Toyota Mirai and Hyundai Nexo vehicles powered by ultra-high purity hydrogen, produced in Queensland using CSIRO’s membrane technology.
This technology will pave the way for bulk hydrogen to be transported in the form of ammonia, using existing infrastructure, and then reconverted back to hydrogen at the point of use.
It has the potential to fill the gap in the technology chain to supply fuel cell vehicles around the world with low-emissions hydrogen sourced from Australia.
The membrane separates ultra-high purity hydrogen from ammonia, while blocking all other gases.
It links hydrogen production, distribution and delivery in the form of a modular unit that can be used at, or near, a refuelling station.
originally posted by: TEOTWAWKIAIFF
a reply to: Reverbs
That is how I read it. Ammonia (probably a specific version and highly pure), pushed through a membrane, out come hydrogen. I did not see specifics on how much, if any, more energy is needed to convert back.
Even if you lose some on the re-conversion the energy capacity of hydrogen is such that it is, in the end, way better than hydrocarbons. And I am sure you could put another solar panel up at the refueling station if needs be.
Just think man, it is a car! That runs on water!!!
Following this successful demonstration, the technology will be increased in scale and deployed in several larger-scale demonstrations, in Australia and abroad.
The project received $1.7 million from the Science and Industry Endowment Fund (SIEF), which was matched by CSIRO.
In addition to its membrane technology, CSIRO is applying its expertise to all stages of the hydrogen technology chain (including solar photovoltaics, solar thermal, grid management, water electrolysis, ammonia synthesis, direct ammonia utilisation via combustion and/or fuel cells, as well as hydrogen production).
Project leader Dr Michael Dolan told IFLScience that ammonia is stored as a liquid, a portion of which is allowed to vaporize to ammonia gas. This is drawn off and passed through their patented membrane, producing hydrogen and nitrogen. The hydrogen is pressurized and used to fill the cars. Reduced pressure in the ammonia storage container allows more liquid to vaporize until the entire supply is used.
Amorphous metallic membranes display promising properties for hydrogen purification up to an ultrapure grade (purity > 99.999%). The hydrogen permeability through amorphous membranes has been widely studied in the literature. In this work we focus on two additional properties, which should be considered before possible application of such materials: the propensity to crystallize at high temperatures should be avoided, as the crystallized membranes can become brittle; the hydrogen solubility should be high, as solubility and permeability are proportional. We investigate the crystallization process and the hydrogen solubility of some membranes based on Ni, Nb, and Zr metals, as a function of Zr content, and with the addition of Ta or B. The boron doping does not significantly affect the crystallization temperature and the thermal stability of the membrane. However, the hydrogen solubility for p ~7 bar is as high as H/M ~0.31 at T = 440 °C and H/M ~0.27 at T = 485 °C. Moreover, the membrane does not pulverize even after repeated thermal cycles and hydrogenation processes up to 485 °C and 7 bar, and it retains its initial shape.
A recent article in Science Advances describes the new method. A pre-treated RuO2/γ-Al2O3 catalyst was exposed to ammonia. The ammonia then adsorbed to the catalyst surface, an exothermic process leading to the production of heat.
As a result, the temperature of the catalytic bed increased and eventually exceeded the autoignition temperature of ammonia, resulting in oxidative decomposition of ammonia and the production of hydrogen