New frontiers in sustainable energy production and storage

Composite capillary carbon tube Nb18W16O93 as advanced anode material for aqueous ion capacitors

“…NbWO@C offers a larger CV area than that of NbWO electrode (figure 4(A)) at 1 mV s −1 , indicating NbWO@C better power storage capacity [44]. The CV curves of NbWO@C electrode from 1 to 10 mV s −1 (figure 4(B)), without obvious polarization phenomenon, manifests its good stability and wide potential window, and confirms the promising prospect of 'water-in-salt' electrolyte [45]. A redox peak (figure S2) similar to that of NbWO@C can be observed in the CV curves of NbWO electrode at scanning rate (1 mV s −1 − 10 mV s −1 ).…”

Selective Copper Oxide Coating on Aluminum Panels for Solar Heating Absorption

“…The global warming due to CO 2 emission from burning natural oil, gas and coal is already bringing undesirable climate changes to planet earth [3,4]. Clean forms based on wind, ocean waves, geothermal and solar energies are, in many countries, beginning to increase towards a sustainable energy matrix [5,6]. Among these so-called clean alternatives, stands the solar energy, which is inexhaustible and provided every day in amounts well above the current humanity needs.…”