Performance-Enhanced Activated Carbon Electrodes for Supercapacitors Combining Both Graphene-Modified Current Collectors and Graphene Conductive Additive.

Graphene has been widely used in the active material, conductive agent, binder or current collector for supercapacitors, due to its large specific surface area, high conductivity, and electron mobility. However, works simultaneously employing graphene as conductive agent and current collector were rarely reported. Here, we report improved activated carbon (AC) electrodes (AC@G@NiF/G) simultaneously combining chemical vapor deposition (CVD) graphene-modified nickel foams (NiF/Gs) current collectors and high quality few-layer graphene conductive additive instead of carbon black (CB).

Fast Batch Production of High-Quality Graphene Films in a Sealed Thermal Molecular Movement System.

Chemical vapor deposition (CVD) growth of high-quality graphene has emerged as the most promising technique in terms of its integrated manufacturing. However, there lacks a controllable growth method for producing high-quality and a large-quantity graphene films, simultaneously, at a fast growth rate, regardless of roll-to-roll (R2R) or batch-to-batch (B2B) methods. Here, a stationary-atmospheric-pressure CVD (SAPCVD) system based on thermal molecular movement, which enables fast B2B growth of continuous and uniform graphene films on tens of stacked Cu(111) foils, with a growth rate of 1.

Roles of Oxygen and Hydrogen in Crystal Orientation Transition of Copper Foils for High-Quality Graphene Growth.

The high-quality graphene film can be grown on single-crystal Cu substrate by seamlessly stitching the aligned graphene domains. The roles of O and H have been intensively studied in the graphene growth kinetics, including lowering the nucleation sites and tailoring the domain structures. However, how the O and H influence Cu orientations during recrystallization prior to growing graphene, still remains unclear.

[Mild hypothermia therapy for brain recovery after cardiopulmonary resuscitation and analysis of prognostic factors].

Objective: To explore the prognostic factors of mild hypothermia therapy in patients after cardiopulmonary resuscitation (CPR) and the prognostic value of the active electroencephalogram (AEEG).

Methods: Mild hypothermia therapy was applied in 42 patients after CRP whose circulation was stable on the basis of systemic treatment. Body temperature (jugular bulb temperature) was controlled at 31-34 centigrade for 3-6 days before rewarming.