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Full-Text Articles in Engineering

Novel Bimetallic Plasmonic Nanomaterials, Ritesh Sachan May 2013

Novel Bimetallic Plasmonic Nanomaterials, Ritesh Sachan

Doctoral Dissertations

Plasmonic nanomaterials have attracted a lot of attention recently due to their application in various fields such as chemical and biological sensing, catalysis, energy harvesting and optical devices. However, there is a need to address several outstanding issues with these materials, including cost-effective synthesis, tunability in plasmonic characteristics, and long term stability. In this thesis, we have focused on bimetallic nanoparticles (NPs) of Ag and Co due to their immiscibility as well as their individual properties. First, a pulsed laser induced dewetting route was used to synthesize Ag-Co bimetallic plasmonic NPs. An synthesis parameter space was derived to show the …


Printing Nanomaterials Using Non-Contact Printing, Charles Mire, Marc In Het Panhuis, Paul D. Calvert, Gordon G. Wallace Mar 2013

Printing Nanomaterials Using Non-Contact Printing, Charles Mire, Marc In Het Panhuis, Paul D. Calvert, Gordon G. Wallace

Gordon Wallace

We report on the use of inkjet, extrusion, and capillary printing of poly(3,4 ethylenedioxythiophene)/ poly(sodium 4-styrene-sulfonate) (PEDOT/PSS) to create structures that could be used in a flexible, implantable bionic device. Resistance values as low as 250 kΩ are demonstrated, with little deviation under as much as 1.5% strain. The results show PEDOT/PSS can be a suitable material for printed bionic devices.


Charge-Controlled Switchable Co2 Capture On Boron Nitride Nanomaterials, Qiao Sun, Zhen Li, Debra J. Searles, Ying Chen, Gao Qing (Max) Lu, Aijun Du Jan 2013

Charge-Controlled Switchable Co2 Capture On Boron Nitride Nanomaterials, Qiao Sun, Zhen Li, Debra J. Searles, Ying Chen, Gao Qing (Max) Lu, Aijun Du

Australian Institute for Innovative Materials - Papers

Increasing concerns about the atmospheric CO2 concentration and its impact on the environment are motivating researchers to discover new materials and technologies for efficient CO2 capture and conversion. Here, we report a study of the adsorption of CO2, CH4, and H2 on boron nitride (BN) nanosheets and nanotubes (NTs) with different charge states. The results show that the process of CO2 capture/release can be simply controlled by switching on/off the charges carried by BN nanomaterials. CO2 molecules form weak interactions with uncharged BN nanomaterials and are weakly adsorbed. When extra electrons are introduced to these nanomaterials (i.e., when they are …


An Overview - Functional Nanomaterials For Lithium Rechargeable Batteries, Supercapacitors, Hydrogen Storage, And Fuel Cells, Hua-Kun Liu Jan 2013

An Overview - Functional Nanomaterials For Lithium Rechargeable Batteries, Supercapacitors, Hydrogen Storage, And Fuel Cells, Hua-Kun Liu

Australian Institute for Innovative Materials - Papers

There is tremendous worldwide interest in functional nanostructured materials, which are the advanced nanotechnology materials with internal or external dimensions on the order of nanometers. Their extremely small dimensions make these materials unique and promising for clean energy applications such as lithium ion batteries, supercapacitors, hydrogen storage, fuel cells, and other applications. This paper will highlight the development of new approaches to study the relationships between the structure and the physical, chemical, and electrochemical properties of functional nanostructured materials. The Energy Materials Research Programme at the Institute for Superconducting and Electronic Materials, the University of Wollongong, has been focused on …