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Nanocrystalline diamond (NCD) is a promising material due to its extraordinary properties, such as ultrahigh strength and hardness. The effects of strain rate (ε˙) and annealing temperature (TA) on the tensile properties of a NCD sample were investigated using molecular dynamics (MD) simulations. The anisotropy ratio of the sample was used to indicate the anisotropic nature of a polycrystalline, and...
Ultrahigh level nitrogen and sulfur co-doped disordered porous carbon (NSDPC) was facilely synthesized and applied as anode materials for lithium-ion batteries (LIBs). Benefiting from high nitrogen (14.0 wt%) and sulfur (21.1 wt%) doping, electrode fabricated from NS1/3 showed a high reversible capacity of 1188 mA h g−1 at 0.1 A g−1 in the first cycle with a high initial columbic efficiency (>75%)...
Graphynes consisting of sp- and sp2-hybridized carbon atoms represent two-dimensional allotropes of the carbon family with intriguing properties. Based on first-principles calculations, we propose a stable three-dimensional (3D) framework (with the space group of I41/amd) of sp- and sp2-hybridized carbon atoms termed super-graphyne. The exotic property of super-graphyne lies in the semi-metallic features...
Hybrid graphene aerogels (HGA) consisting of graphene oxide (GO) and graphene nanoplatelets (GNP) were prepared and introduced into polyethylene glycol (PEG) via vacuum impregnation, aiming at obtaining composite phase change materials (PCMs) with high thermal conductivity, outstanding shape-stabilization, high energy storage density, commendable thermal repeatability and the ability to light-to-heat...
The design and preparation of high comprehensive performance composite phase change materials (PCMs) via a straightforward route were pioneered. Graphene oxide (GO) nanosheets were introduced as supporting materials to keep the shape of polyethylene glycol (PEG) stable during the phase change process and graphene nanoplatelets (GNP) were used as conductive fillers to improve the thermal conductivity...
Graphene oxide (GO) obtained by Hummers method was functionalized by ethylenediamine (EA) and 1,6-hexanediamine (HA) in N,N-dimethyl formamide using 1,1,3,3-tetramethy-luronium hexafluorophosphate as a coupling agent. The functionalized GO was characterized by elemental analysis, FT-IR, XRD, XPS, TGA, SEM and TEM. Results showed one carbon atom in 9–10 of the carbon atoms in GO was functionalized...
Single-walled carbon nanotube (SWCNT) network films with high network density were prepared by vacuum-filtering a suspension of SWCNTs, and used as a host of enzyme precipitate coating of glucose oxidase (EPC-GOx). EPC-GOx was fabricated into the SWCNT network films in a two-step process of enzyme precipitation and crosslinking. High GOx loading in a form of EPC expedited the generation of electrons...
Carbon black (CB) loading greatly affects the in-situ fibrillation of CB/poly (ethylene terephthalate) (PET) compound in a polyethylene (PE) matrix during melt mixing, slit die extrusion and hot stretching. CB/PET/PE composites with lower CB loadings display well-defined CB/PET microfibrils in which all the CB particles are localized. The surface microstructure (mainly amount and distribution of CB...
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