Generating electricity is not the only way to turn sunlight into energy we can use on demand. The sun can also drive reactions to create chemical fuels, such as hydrogen, that can in turn power cars, trucks and trains.
What’s dubbed the world’s first affordable hydrogen fuel cell mass transport vehicle is set to be unveiled in concept form this week at an auto show in India.
River of Hydrogen Flowing through Space Seen with Green Bank Telescope
Using the National Science Foundation’s Robert C. Byrd Green Bank Telescope (GBT), astronomer D.J. Pisano from West Virginia University has discovered what could be a never-before-seen river of hydrogen flowing through space.
The quest to harness hydrogen as the clean-burning fuel of the future demands the perfect catalysts—nanoscale machines that enhance chemical reactions. Scientists must tweak atomic structures to achieve an optimum balance of reactivity, durability, and industrial-scale synthesis. In an emerging catalysis frontier, scientists also seek nanoparticles tolerant to carbon monoxide, a poisoning impurity in hydrogen derived from natural gas. This impure fuel—40 percent less expensive than the pure hydrogen produced from water—remains largely untapped.
The latest idea for producing hydrogen efficiently and without emissions drawbacks uses the sun in a setup that looks a lot like the big power-tower concentrating solar power plants that are nearing completion in the American Southwest.
Providing auxiliary hydrogen power to docked or anchored ships may soon be added to the list of ways in which hydrogen fuel cells can provide efficient, emissions-free energy.
Electric bicycles, despite being a very green form of personal transportation for those who can’t live without some type of motor assist, can still sometimes run into the same problem electric cars do when it comes time for charging.
Researchers have engineered a strain of electricity-producing bacteria that can grow using hydrogen gas as its sole electron donor and carbon dioxide as its sole source of carbon.
Researchers at the U.S. Department of Energy's Brookhaven National Laboratory have discovered a low-cost, stable, effective catalyst that could replace costly platinum in the production of hydrogen.
A team of Virginia Tech researchers has discovered a way to extract large quantities of hydrogen from any plant, a breakthrough that has the potential to bring a low-cost, environmentally friendly fuel source to the world.
There are many challenges to achieving the dreamed-about hydrogen economy, but one of them – the ability to make hydrogen from water cheaply and at scale – could be a little closer to being overcome. If it indeed is, renewable energy could become a whole lot more economical.
So-called super-Earths - rocky exoplanets much larger than our own - may actually be more like mini-Neptunes.
Super-small particles of silicon react with water to produce hydrogen almost instantaneously, University at Buffalo researchers have discovered.
A study of water from the Martian interior shows that Mars was originally formed from similar building blocks to Earth, but evolved differently later on.
Using sunlight and ultrathin films of iron oxide, or rust, Technion-Israel Institute of Technology researchers have found a new way to split water molecules into hydrogen and oxygen.
NASA's Dawn spacecraft has discovered evidence of water on the surface of the asteroid Vesta - but not much of it.
Is the finish line for hydrogen fuel cell vehicles in sight for Hyundai?
Hydrogen fuel cell vehicles are something auto manufacturers continue to kick around with the promise they might actually see significant numbers on the road someday.
Of late we've been noting the rising trend of green cars at the racetrack. Vehicles such as the Kleenspeed EV-X11, Drayson B12/69EV and Audi R8 e-tron have been setting lap records at respected tracks around the world.
When a solid-oxide fuel cell runs out of hydrogen, it takes about 15 seconds for the electrochemical reaction to wind down. Think of it as a little dose of free energy.