Results 141 to 150 of about 942,168 (389)
Influence of graphene content on properties of Cu matrix composites
Cailiao gongcheng, 2019 Graphene reinforced copper composites were fabricated by a one-step chemical reduction and spark plasma sintering. The effect of graphene content on microstructure, mechanical properties and electrical conductivity properties of composites was ...
LI Xiu-hui +4 more
doaj +1 more source
EPL (Europhysics Letters), 2009 Meyer et al (2007) found that free-standing graphene sheets, just one atom thick, display spontaneous ripples. The ripples are of order 2-20 high and 20-200 wide. The sheets in which they appear are only one atom thick, and extend for around 5000 through vacuum between metal struts that support them.
Maria J. B. Moura +2 more
openaire +3 more sources
Electrically Insulating Electromagnetic Interference Shielding Materials: A Perspective
Advanced Functional Materials, EarlyView.Developing electromagnetic interference (EMI) shielding materials with inherent electrical insulation and high EMI shielding effectiveness is challenging but important for electronic applications. This perspective summarizes the recent advancements in designing electrically insulating EMI shielding materials and discusses the underlying mechanisms of ...
Ji Liu, Valeria Nicolosi
wiley +1 more source
Research Progress in Graphene/Polymer Composites Processing Using 3D Printing Technology
Cailiao gongcheng, 2018 Graphene is widely used in the preparation of polymer matrix composites because of its excellent properties. 3D printing, as an emerging technology, is increasingly applied to the shaping and processing of graphene/polymer composites.
XU Jing +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This study presents excellent EMI shielding effectiveness of highly crystalline HC‐Ti3C2Tx MXene, characterized by high electrical conductivity, outstanding environmental stability, and facile processability, across a multispectral frequency range from 100 kHz to 110 GHz. It is revealed that increasing the thickness and electrical conductivity of MXene
Aamir Iqbal +13 more
wiley +1 more source
Atomic Layer Deposition of Metal Oxides on Pristine and Functionalized Graphene [PDF]
arXiv, 2008 We investigate Atomic Layer Deposition (ALD) of metal oxide on pristine and functionalized graphene. On pristine graphene, ALD coating can only actively grow on edges and defect sites, where dangling bonds or surface groups react with ALD precursors. This affords a simple method to decorate and probe single defect sites in graphene planes.
arxiv
Advanced Science, 2020 FeNC materials have shown a promising nonprecious oxygen reduction reaction (ORR) electrocatalyst yet their active site structure remains elusive.
Xin Yang +6 more
doaj +1 more source
2D Vermiculite Nanolaminated Membranes for Efficient Organic Solvent Nanofiltration
Advanced Functional Materials, EarlyView.Intercalating multivalent cations into 2D vermiculite nanolaminates significantly improves the structural stability and sieving capabilities of membranes in both aqueous and organic media, rendering them effective for organic solvent nanofiltration. Abstract Membrane separation technology has found widespread application in molecular sieving and water ...
Wensen Wang +17 more
wiley +1 more source
Chemical functionalization of graphene [PDF]
arXiv, 2008 Experimental and theoretical results on chemical functionalization of graphene are reviewed. Using hydrogenated graphene as a model system, general principles of the chemical functionalization are formulated and discussed. It is shown that, as a rule, 100% coverage of graphene by complex functional groups (in contrast with hydrogen and fluorine) is ...
arxiv
Impact of Graphene Thickness on EM Modelling of Antenna [PDF]
arXiv, 2020 This paper presents illustrative electromagnetic modelling and simulation of graphene antenna using a two-dimensional graphene sheet of zero thickness and a three-dimensional graphene slab of finite thickness. The properties of the antenna are analyzed in terms of the S11 parameter, input impedance, VSWR, radiation pattern, and frequency ...
arxiv