A radical new process that allows hydrogen to be efficiently sourced from liquid formic acid could be one step forward in making the dream of hydrogen-powered cars an economic reality.
Using formic acid to produce hydrogen has never been considered viable because it requires high temperatures to decompose and also produces waste by-products.
But the University of Melbourne’s Professor Richard O’Hair has led an international team of scientists in designing a molecular catalyst that forces formic acid to produce only hydrogen and carbon dioxide and at a low temperature of only 70°C.
Professor O’Hair, from the University’s School of Chemistry and Bio21 Institute, worked in collaboration with Professors Philippe Dugourd (from the University of Lyon), Philippe Maitre (University of Paris South), Bona?i?-Koutecky? (Humboldt-University Berlin) and Dr. Roger Mulder (CSIRO Manufacturing) for the study.
It marks a new frontier in catalyst design at the molecular level. Such catalysts are formulated to produce highly selective chemical reactions.
“One of the grand challenges for chemists today is to develop perfect chemical reactions that proceed with 100 per cent yield and 100 per cent selectivity without forming any waste products,” Professor O’Hair said.
“With formic acid, the aim was to transform it into hydrogen and carbon dioxide, which could really lend itself to the important practical applications of hydrogen energy in the transport sector.”
While the study successfully produces hydrogen and CO2, the ultimate aim of future research will be to ensure any derivative source of hydrogen produces zero emissions.
Using a suite of powerful gas-phase techniques, the research team designed a series of silver complexes and examined their reactions with formic acid.
The team was able to identify and orchestrate the exact catalyst that would effectively manipulate a strict hydrogen/carbon dioxide-only production.
Mr Athanasios Zavras, the study’s first author and PhD student at the University of Melbourne, said having the initial gas-phase results validated using a nuclear magnetic resonance (NMR) instrument was an exciting moment.
“We were glued to our seats that day,” he said.
“I prepared solutions containing well-defined amounts of the same silver, salt and ligand combination and these were studied with a NMR that allowed us to incrementally increase the temperature from 25°C and track the formation of products.
“There was no reaction for a while, but we persevered and at 70°C, we unequivocally identified the production of hydrogen gas and carbon dioxide.
“It was an extremely exciting moment.”
One of the major challenges as the world moves towards hydrogen power is the lack of refueling infrastructure, but which the researchers say could easily be overcome if one day the industry moves to using liquid formic acid.
But Professor O’Hair notes that while the new catalyst design is an important step forward in addressing our hydrogen energy needs, there are still many barriers to overcome, such as the production of carbon dioxide and how it could potentially be recycled to regenerate formic acid.
The Latest on: Hydrogen-powered cars
via Google News
The Latest on: Hydrogen-powered cars
- Hyundai Delivers First Nexo Fuel Cell SUV In U.S. on January 3, 2019 at 3:08 am
hydrogen-powered vehicle. More than 15 years ago, he purchased his first hybrid car and over the years has driven dedicated electric vehicles as well. His new NEXO will deliver about five times ... […]
- Hyundai delivers first NEXO fuel cell SUV on January 2, 2019 at 6:44 am
Hyundai has delivered its first hydrogen-powered sport-utility vehicle (SUV ... and reduced CO 2 emissions by 26lbs during manufacturing process. Both models of the car have hydrogen fuel cell powertr... […]
- Where are Mazda’s Hydrogen engines? on January 1, 2019 at 8:16 pm
It was able to achieve this at a low cost, which made the possibility of future hydrogen-powered Mazda cars a likely one, but we haven’t seen it. Extra Security: What comes with a certified pre ... […]
- Hyundai Sells First Fuel Cell SUV in Van Nuys on December 31, 2018 at 11:52 am
In a press release from Hyundai, Hochrad was described as an atypical car buyer yet the sort of customer looking to drive a zero-emission, hydrogen-powered vehicle. He purchased his first hybrid vehic... […]
- Australia hopes to launch Hydrogen- powered cars on December 31, 2018 at 11:12 am
Hydrogen-electric vehicles are considered environmentally friendly because they only emit water. As a key to reducing greenhouse-gas emissions, Australian car manufacturers hope to launch Hydrogen- po... […]
- First 2019 Hyundai Nexo fuel-cell vehicle delivered on December 31, 2018 at 8:24 am
It's a shame that our limited hydrogen-fueling infrastructure will keep this car limited to certain regions in the U.S., primarily San Francisco and Southern California, for now. […]
- Hyundai Nexo FCV Better Than Toyota Mirai, Limited By Lack Of Infrastructure on December 30, 2018 at 3:25 am
The Korean automaker builds both an all-electric vehicle, the Kona EV, and a fuel cell car, the Nexo. The latter offers a range ... and Joshua Vergara drove the hydrogen-powered crossover for 900 mile... […]
- The Weirdest Stuff to Happen to or With Cars In 2018 on December 26, 2018 at 4:35 pm
The glorious World Automotive was jam-packed with all manner of weirdness, so let’s take a stroll back, shall we, through the weird car stuff ... a fake freaking hydrogen-powered plane Kanye ... […]
- Students show STEM skills by racing hydrogen-powered cars on December 26, 2018 at 1:45 pm
Get the intelligence you need: news and information that is changing your industry today, hand-curated by our professional editors from thousands of sources and delivered straight to your inbox. […]
- My Friend Malcolm “The Critic” Is Exceedingly Hard to Please on December 26, 2018 at 7:40 am
Another of his faves: Toyota’s hydrogen-powered Mirai fastback sedan. Personally, while I heartily applaud the car’s pioneering fuel-cell technology, I find the Mirai’s shape bizarre, almost horrifyin... […]
via Bing News