Bimetallic nanostructures can provide distinct and improved physicochemical properties by the coupling effect of the two metal components, making them promising materials for a variety of applications. Herein, we report composition-selective fabrication of ordered intermetallic Au-Cu nanowires (NWs) by two-step chemical vapor transport method and their application to nano-electrocatalytic gluco...

An effective strategy to strengthen a superalloy processed by selective laser melting (SLM) is proposed. The aim increase the yield strength of Inconel 718 fabricated SLM beyond 1400 MPa, which has never been achieved before. In this study, various NbC additions (0.0%, 0.5%, 1.0%, and 5.0% weight) were added in powder bed 718, two types post-SLM heat treatments investigated, i.e., solution trea...

The decay of nano-islands on the surface of a Au(111) electrode, in contact with 50 mM sulfuric acid aqueous solution under an applied potential in the range of 0.15–1.2 V, has been investigated using electrochemical atomic force microscopy (EC-AFM). The results are compared with those previously obtained for Au(100). With either orientation, it is found that the area of the top layer of multi-...

Article history: Received 23 November 2015 Received in revised form 4 January 2016 Accepted 4 January 2016 Available online 24 January 2016 The mechanical stability of nanoporous gold (np-Au) at various stages of thermal coarsening is studied via finite element analysis under volumetric compression using np-Au architectures imaged via X-ray nano-tomography. As the np-Au is coarsened thermally o...

Lithium (Li) metal is perceived as the “holy grail” of anodes for secondary batteries due to its innate merits. Regrettably, commercial application Li (LMAs) has been hampered by problems derived from uncontrollable growth dendrites, which could result in formation short-circuits, thereby leading fatal safety accidents. Here, a three-dimensional lithiophilic gold (Au)-coated copper (Cu) pentago...

Au nanoparticles (NPs) have been utilized in a wide range of device applications as well as catalysts for the fabrication of nanopores and nanowires, in which the performance of the associated devices and morphology of nanopores and nanowires are strongly dependent on the size, density, and configuration of the Au NPs. In this paper, the evolution of the self-assembled Au nanostructures and NPs...

In this research, sensing performance of mono and bimetallic nanophotonics SERS sensors gold-silver nano-columns for the detection chlorpyrifos was investigated. For optimum substrates Gold-silver/nano-column surface-enhanced, Raman scattering (SERS) achieved with silicon substrate. By combining Ag activity Au chemical stability Si large field enhancement, Au-Ag/nano-columns substrate revealed ...

In this article, PtAg alloy nanoislands/graphene hybrid composites were prepared based on the self-organization of Au@PtAg nanorods on graphene sheets. Graphite oxides (GO) were prepared and separated to individual sheets using Hummer's method. Graphene nano-sheets were prepared by chemical reduction with hydrazine. The prepared PtAg alloy nanomaterial and the hybrid composites with graphene we...