Science Daily May 19, 2022 The most advanced carbon capture technologies currently require large amounts of energy and they are expensive. Researchers in the UK have designed a supercapacitor that consists of two electrodes of positive and negative charge. They found that alternating from a negative to a positive voltage improved the supercapacitor’s ability to capture carbon. When the electrodes become charged, the negative plate draws in the CO2 gas, while ignoring other emissions, such as oxygen, nitrogen, and water. Using this method, the supercapacitor both captures carbon and stores energy. They have developed a technique to understand the mechanism […]
Tag Archives: Capacitors
Researchers design charged ‘power suits’ for electric vehicles and spacecraft
Phys.org March 7, 2022 A team of researchers in the US (University of Central Florida, NASA Kennedy space Center, FL) has developed a supercapacitor using carbon fiber reinforced polymer (e-CFRP) that can store electrical energy and function as the structural component for the EV’s body shell. Vertically aligned graphene sheets were attached to carbon fiber electrodes on which different metal oxides were deposited to obtain high-energy density electrodes. They fabricated a high-strength multilayer e-CFRP assembly using an alternate layer patterning configuration of epoxy and polyacrylamide gel electrolyte. It delivered a high areal energy density of 0.31 mWh cm–2 at 0.3 […]
Researchers propose method to increase charge of supercapacitors
Nanowerk December 1, 2021 For ionic liquids, not only are the charge and size of each ion important, but so too are such characteristics as dipole moment on a cation and static polarizability which determines the particle’s ability to get an induced dipole moment in the external electrical field. An international team of researchers (Russia, Germany) analysed how differential capacitance behaves depending on the voltage given the growing permanent dipole moment and static polarizability of cations for ionic liquids and electrolyte solutions. In both cases, the growth of polarizability or permanent dipole moment of cations leads to considerable growth of […]