2015TheOutlookforEnergy:AViewto2040U.S.EditionTheOutlookforEnergy:AViewto2040U.S.Edition4ComfortandsecurityGainsinlivingstandardsoverthepasttwocenturieshavebeenenabledinlargepartbyatransitiontomodernenergysources.Oneelementdrivingthistransitionisthe“energydensity”ofvariousenergytypes.Fuelshighinenergycontentuseless...
This paper introduces the annual energy density concept for electric power generation, which is proposed as an informative metric to capture the impacts on the environmental footprint. Our investigation covers a wide range of sources classified by rated
The development of catalysts that operate under low concentration CO2 resembling industrial waste gases holds promise for CO2 reduction. Here, the authors report a vacuum calcination approach for regulating the Cu0/Cu1+ density on Cu-based catalysts that can electro-catalyze low-concentration CO2. Li...
Largely improved catalytic performances of activity, durability, and kinetics are demonstrated compared to the conventional alloy system and commercial Pt/C catalyst, due to the efficient synergism of Pt and CoSe2; the peak current density of Pt/CoSe2 for methanol (ethanol) oxidation is 87.61 (...
Moreover, a promising maximum power density of Fe6-M/C-3 as cathode catalyst was also demonstrated in proton exchange membrane fuel cells (PEMFCs) measurements. Therefore, this binary ligand approach to the fabrication of hierarchically por-ous structures would also have significant implications for...
In the transformation of traditional fossil fuels to renewables, the issue of new energy storage is one of major concern—where do we get our energy from when the wind is not blowing and the sun is not shining? A dive into the current situation and future development of new energy storage...
(CH4) series,comprisesthe most common hydrocarbons in crude oil. The majorconstituentsofgasolineare theparaffinsthat are liquid at normal temperatures but boil between 40 °C and 200 °C (100 °F and 400 °F). The residues obtained by refining lower-density paraffins are bothplasticand solid...
as substitute of inorganic electrolyte containing batteries [102], which feature high energy-storage densities as next-generation micropower storage for portable electronics, the similar enzyme-powered bioelectrode cell with fuels such as maltodextrin (starch fragment) with much higher energy density than...
As a result, such a synergetic surface effect enables uniform Zn plating/stripping with low polarization of 29 mV at a current density of 0.5 mA cm-2 with stable cyclic performance up to 1000 h. Further, a full cell composed of a fluorine-substituted Zn anode coupled with a β-MnO2 or ...