article_snippet.sent: The days of filling your car with petrol may be numbered because researchers have boosted the efficiency of making hydrogen fuel from plant waste.
article_snippet.sent: Eco-friendly hydrogen cars, which are already a reality, emit only water, but the gas is expensive and is not easy to store, meaning more research is needed for  hydrogen cars to become mainstream.
article_snippet.sent: a by-product of farming – into hydrogen gas, which can be used to power vehicles
article_snippet.sent: The ultimate aim is to produce large quantities of hydrogen from crop waste efficiently, because many present methods either cost too much or use food crops.
article_snippet.sent: So instead, experts have focused on finding materials, such as carbon, which can absorb hydrogen and release it on demand.
article_snippet.sent: The breakthrough could produce a zero-emissions fuel that could speed up the movement toward hydrogen-powered vehicles, according to the study, which was published in the journal PNAS.
article_snippet.sent: We have demonstrated the most important step toward a hydrogen economy -- producing distributed and affordable green hydrogen from local biomass resources,’ said study co-author Percival Zhang, a professor at Virginia Tech.
article_snippet.sent: The discovery means The discovery is possible to speed up the rate at which hydrogen is released, while decreasing the area of the facility needed to produce The discovery to the size of a gas station.
article_snippet.sent: We believe this exciting technology has the potential to enable the widespread use of hydrogen fuel cell vehicles around the world and displace fossil fuels,former doctoral student
article_snippet.sent: Professor Zhang said: ‘I think in three to five years we should be able to build a bioreactor that is something like a gas station which can produce 200 kilos of hydrogen fuel a day.