Durian fruit is notable for its funky stench, making it a rather malodorous waste when it is discarded. But a new study from Australia’s University of Sydney, published in the Journal of Energy Storage, focused on recycling durian waste into an affordable, sustainable source of energy storage to counteract global warming. How? The researchers have discovered a way to create ultracapacitors from durian and its related jackfruit cousin. Who knew that putrid-smelling biowaste could pack an electrical punch?
“Super-capacitors are like energy reservoirs that dole out energy smoothly. They can quickly store large amounts of energy within a small battery-sized device and then supply energy to charge electronic devices, such as mobile phones, tablets and laptops, within a few seconds,” explained associate professor Vincent Gomes. “Using durian and jackfruit purchased from a market, we converted the fruits’ waste portions (biomass) into super-capacitors that can be used to store electricity efficiently.”
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As TreeHugger reported, the waste biomass of durian and jackfruit are “converted into a carbon aerogel using non-toxic methods.” These aerogels are then leveraged and converted into electrodes, “which are tested for their energy storage properties.” Interestingly, these durian- and jackfruit-derived electrodes “demonstrate outstanding performance, making them a green, low-cost energy solution for charging phones, laptops and tablets.”
When compared to what’s currently on the market, the electrodes developed from durian and jackfruit have proven to be a more energy-efficient alternative to traditional ultracapacitors derived from activated carbon.
“The durian and jackfruit super-capacitors perform much better than the materials currently in use and are comparable, if not better, than the expensive and exotic graphene-based materials,” Gomes said. “We have reached a point where we must urgently discover and produce ways to create and store energy using sustainably sourced materials that do not contribute to global warming.”
Image via Jonny Clow