9 research outputs found
Go@Se@ni cathode materials for lithium-selenium battery
Selenium is a promising cathode material for high-energy lithium batteries. In this work, selenium was electrodeposited on nickel foam from aqueous selenite solution. The influences of pH values and current density on electrodeposited Se@Ni were investigated. It is found that electrodeposition at pH 7 and 0.5 mA cm â2 enables high current efficiency and produces uniform and smooth deposits. Graphene oxide (GO) was further coated on Se@Ni through physical adsorption to produce GO@Se@Ni. The developed GO@Se@Ni electrode delivers a high initial specific capacity of 593 mAh g â1 and good capacity retention over 100 cycles at 0.1 C
<i>Ratanasampil</i> (Tibetan Medicine, RNSP) Reduces <i>ÎČ</i>-Amyloid Protein (AÎČ) and Pro-Inflammatory Factor Levels and Improves Cognitive Functions in Mild-to-Moderate Alzheimerâs Disease (AD) Patients Living at High Altitude
La nouvelle orthodoxie de la recherche sur lâhistoire soviĂ©tique Ă©vite soigneusement de parler de rĂ©sistance au rĂ©gime stalinien. RĂ©sistance, dit-on, implique une personnalitĂ© autonome par rapport au rĂ©gime. Or les citoyens de lâURSS auraient Ă©tĂ© incapables de garder une distance par rapport aux normes fixĂ©es par lâĂtat. Il leur manquait un point dâappui au-delĂ du systĂšme. Le concept de rĂ©sistance est un piĂšge pour le chercheur, car il suppose lâhypothĂšse improbable dâun sujet capable dâintĂ©..