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New solid hydrogen-on-demand fuel cell from HES Energy Systems flies UAV for record 6 hours

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The Skyblade 360 fuel cell system developed by HES and DSO is extremely lightweight in comparison to lithium batteries that typically power this aircraft, and it is also extremely compact: its 1L fuel cartridge holds 1000 Wh of usable energy.

Hydrogen 150
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NUS-led research team develops cost-effective technique for mass production of high-quality graphene; 50x less solvent

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A research team led by the National University of Singapore (NUS) has developed an economical and industrially viable strategy to produce graphene. The resulting graphene slurry be easily separated into monolayers when required or stored away for months. Dong et al. Click to enlarge.