277 results found
Iruretagoyena D, Shaffer MSP, Chadwick D, 2014, Adsorption of carbon dioxide on graphene oxide supported layered double oxides, ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY, Vol: 20, Pages: 321-330, ISSN: 0929-5607
Boncel S, Gorka J, Shaffer MSP, et al., 2014, Shear-induced crystallisation of molten isotactic polypropylene within the intertube channels of aligned multi-wall carbon nanotube arrays towards structurally controlled composites, MATERIALS LETTERS, Vol: 116, Pages: 53-56, ISSN: 0167-577X
Goode AE, Hine NDM, Chen S, et al., 2014, Mapping functional groups on oxidised multiwalled carbon nanotubes at the nanometre scale, CHEMICAL COMMUNICATIONS, Vol: 50, Pages: 6744-6747, ISSN: 1359-7345
Hodge SA, Tay HH, Anthony DB, et al., 2014, Probing the charging mechanisms of carbon nanomaterial polyelectrolytes, FARADAY DISCUSSIONS, Vol: 172, Pages: 311-325, ISSN: 1359-6640
Shirshova N, Qian H, Houlle M, et al., 2014, Multifunctional structural energy storage composite supercapacitors, FARADAY DISCUSSIONS, Vol: 172, Pages: 81-103, ISSN: 1359-6640
Dryfe R, Chen GZ, Bayer D, et al., 2014, The many faces of carbon in electrochemistry: general discussion, FARADAY DISCUSSIONS, Vol: 172, Pages: 117-137, ISSN: 1359-6640
Silverwood IP, Keyworth CW, Brown NJ, et al., 2014, An Attenuated Total Reflection Fourier Transform Infrared (ATR FT-IR) Spectroscopic Study of Gas Adsorption on Colloidal Stearate-Capped ZnO Catalyst Substrate, APPLIED SPECTROSCOPY, Vol: 68, Pages: 88-94, ISSN: 0003-7028
Chen S, Theodorou IG, Goode AE, et al., 2013, High-Resolution Analytical Electron Microscopy Reveals Cell Culture Media-Induced Changes to the Chemistry of Silver Nanowires, ENVIRONMENTAL SCIENCE & TECHNOLOGY, Vol: 47, Pages: 13813-13821, ISSN: 0013-936X
Leo BF, Chen S, Kyo Y, et al., 2013, The Stability of Silver Nanoparticles in a Model of Pulmonary Surfactant., Environ Sci Technol, Vol: 47, Pages: 11232-11240
The growing use of silver nanoparticles (AgNPs) in consumer products has raised concerns about their potential impact on the environment and human health. Whether AgNPs dissolve and release Ag+ ions, or coarsen to form large aggregates, is critical in determining their potential toxicity. In this work, the stability of AgNPs in dipalmitoylphosphatidylcholine (DPPC), the major component of pulmonary surfactant, was investigated as a function of pH. Spherical, citrate-capped AgNPs with average diameters of 14 ± 1.6 nm (n=200) were prepared by a chemical bath reduction. The kinetics of Ag+ ion release was strongly pH-dependent. After 14 days of incubation in sodium perchlorate (NaClO4) or perchloric acid (HClO4) solutions, the total fraction of AgNPs dissolved varied from ~10 % at pH 3, to ~2 % at pH 5, with negligible dissolution at pH 7. A decrease in pH from 7 to 3 also promoted particle aggregation and coarsening. DPPC (100 mg.L-1) delayed the release of Ag+ ions, but did not significantly alter the total amount of Ag+ released after two weeks. In addition, DPPC improved the dispersion of the AgNPs and inhibited aggregation and coarsening. TEM images revealed that the AgNPs were coated with a DPPC layer serving as a semi-permeable layer. Hence, lung lining fluid, particularly DPPC, can modify the aggregation state and kinetics of Ag+ ion release of inhaled AgNPs in the lung. These observations have important implications for predicting the potential reactivity of AgNPs in the lung and the environment.
Lachman N, Qian H, Houlle M, et al., 2013, Fracture behavior of carbon nanotube/carbon microfiber hybrid polymer composites, JOURNAL OF MATERIALS SCIENCE, Vol: 48, Pages: 5590-5595, ISSN: 0022-2461
Qian H, Kucernak AR, Greenhalgh ES, et al., 2013, Multifunctional Structural Supercapacitor Composites Based on Carbon Aerogel Modified High Performance Carbon Fiber Fabric, ACS APPLIED MATERIALS & INTERFACES, Vol: 5, Pages: 6113-6122, ISSN: 1944-8244
Hodge SA, Bayazit MK, Tay HH, et al., 2013, Giant cationic polyelectrolytes generated via electrochemical oxidation of single-walled carbon nanotubes, NATURE COMMUNICATIONS, Vol: 4, ISSN: 2041-1723
Menzel R, Duerrbeck A, Liberti E, et al., 2013, Determining the Morphology and Photocatalytic Activity of Two-Dimensional Anatase Nanoplatelets Using Reagent Stoichiometry, CHEMISTRY OF MATERIALS, Vol: 25, Pages: 2137-2145, ISSN: 0897-4756
Qian H, Diao H, Shirshova N, et al., 2013, Activation of structural carbon fibres for potential applications in multifunctional structural supercapacitors, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 395, Pages: 241-248, ISSN: 0021-9797
Chavez-Valdez A, Shaffer MSP, Boccaccini AR, 2013, Applications of Graphene Electrophoretic Deposition. A Review, JOURNAL OF PHYSICAL CHEMISTRY B, Vol: 117, Pages: 1502-1515, ISSN: 1520-6106
Hodge SA, Fogden S, Howard CA, et al., 2013, Electrochemical Processing of Discrete Single-Walled Carbon Nanotube Anions, ACS NANO, Vol: 7, Pages: 1769-1778, ISSN: 1936-0851
Chen S, Goode AE, Sweeney S, et al., 2013, Sulfidation of silver nanowires inside human alveolar epithelial cells: a potential detoxification mechanism, NANOSCALE, Vol: 5, Pages: 9839-9847, ISSN: 2040-3364
Subhani T, Shaffer MSP, Boccaccini AR, 2013, Carbon nanotube (CNT) reinforced glass and glass-ceramic matrix composites, Ceramic Nanocomposites, Pages: 208-256, ISBN: 9780857093387
In this chapter, glass and glass-ceramic matrix composites containing carbon nanotubes (CNTs) are discussed with an emphasis on their production, properties, microstructures and applications. Composite manufacturing routes require both CNT/matrix powder preparation techniques and their densification by suitable sintering processes. Physical, mechanical, functional and technological properties of the composites are evaluated, including density, hardness, elastic modulus, fracture strength and toughness, electrical and thermal conductivity, wear and friction resistance, and thermal shock, cycling and ageing resistance. Microstructural features are typically characterized by X-ray diffraction and scanning and transmission electron microscopy. Based on the characteristics obtained, potential applications of the composites are considered, together with a discussion of the unresolved manufacturing challenges and desirable, but still unattained, properties. © 2013. Woodhead Publishing Limited All rights reserved.
Shirshova N, Bismarck A, Carreyette S, et al., 2013, Structural supercapacitor electrolytes based on bicontinuous ionic liquid-epoxy resin systems, JOURNAL OF MATERIALS CHEMISTRY A, Vol: 1, Pages: 15300-15309, ISSN: 2050-7488
Brown NJ, Weiner J, Hellgardt K, et al., 2013, Phosphinate stabilised ZnO and Cu colloidal nanocatalysts for CO2 hydrogenation to methanol, CHEMICAL COMMUNICATIONS, Vol: 49, Pages: 11074-11076, ISSN: 1359-7345
This paper presents the development of multifunctional materials that perform a structural role whilst simultaneously storing electrical energy as a supercapacitor. Two structural carbon fibre woven electrodeswere separated by a woven glass fibre layer, and infused with a multifunctional polymer electrolyte. Following characterisation of electrochemical and compressive performance, working structural supercapacitor prototypes were demonstrated. Since the relative mechanical and electrical demands are application specific, an optimisation methodology is proposed. Multifunctional composites were achieved, which had compressive moduli of up to 39 GPa and capacitances of up to 52 mF g 1.
Garcia-Gallastegui A, Iruretagoyena D, Gouvea V, et al., 2012, Graphene Oxide as Support for Layered Double Hydroxides: Enhancing the CO2 Adsorption Capacity, CHEMISTRY OF MATERIALS, Vol: 24, Pages: 4531-4539, ISSN: 0897-4756
Cho J, Boccaccini AR, Shaffer MSP, 2012, The influence of reagent stoichiometry on the yield and aspect ratio of acid-oxidised injection CVD-grown multi-walled carbon nanotubes, CARBON, Vol: 50, Pages: 3967-3976, ISSN: 0008-6223
Menzel R, Bismarck A, Shaffer MSP, 2012, Deconvolution of the structural and chemical surface properties of carbon nanotubes by inverse gas chromatography, CARBON, Vol: 50, Pages: 3416-3421, ISSN: 0008-6223
Orchard KL, Shaffer MSP, Williams CK, 2012, Organometallic Route to Surface-Modified ZnO Nanoparticles Suitable for In Situ Nanocomposite Synthesis: Bound Carboxylate Stoichiometry Controls Particle Size or Surface Coverage, CHEMISTRY OF MATERIALS, Vol: 24, Pages: 2443-2448, ISSN: 0897-4756
Milner EM, Skipper NT, Howard CA, et al., 2012, Structure and Morphology of Charged Graphene Platelets in Solution by Small-Angle Neutron Scattering, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 134, Pages: 8302-8305, ISSN: 0002-7863
Garcia-Gallastegui A, Iruretagoyena D, Mokhtar M, et al., 2012, Layered Double Hydroxide supported on Multi-wall Carbon Nanotubes: preparation and CO2 sorption characteristics, J. Mater. Chem., Vol: 22
Cunningham G, Lotya M, Cucinotta CS, et al., 2012, Solvent Exfoliation of Transition Metal Dichalcogenides: Dispersibility of Exfoliated Nanosheets Varies Only Weakly between Compounds, ACS NANO, Vol: 6, Pages: 3468-3480, ISSN: 1936-0851
Celaya Sanfiz A, Garcia-Gallastegui A, Iruretagoyena D, et al., 2012, Self condensation of acetone over Mg-Al layered double hydroxide supported on multi-walled carbon nanotube catalysts
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