Search Results - "Fletcher, Philip J."

Understanding Transient Ionic Diode Currents and Impedance Responses for Aquivion-Coated Microholes by Carneiro-Neto, Evaldo Batista, Li, Zhongkai, Pereira, Ernesto, Mathwig, Klaus, Fletcher, Philip J., Marken, Frank

“…Ionic diode based devices or circuits can be applied, for example, in electroosmotic pumps or in desalination processes. Aquivion ionomer coated asymmetrically…”
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Photoelectrochemistry of immobilised Pt@g-C3N4 mediated by hydrogen and enhanced by a polymer of intrinsic microporosity PIM-1 by Zhao, Yuanzhu, Al Abass, Nawal Abdullah, Malpass-Evans, Richard, Carta, Mariolino, McKeown, Neil B., Madrid, Elena, Fletcher, Philip J., Marken, Frank

“…Graphitic carbon nitride with photo-attached platinum nanoparticles of typically 2.5 nm diameter, Pt@g-C3N4, is known for photo-generation of hydrogen in…”
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Paired Electrosynthesis at Interdigitated Microband Electrodes: Exploring Diffusion and Reaction Zones in the Absence of a Supporting Electrolyte by Liu, Tingran, Carneiro-Neto, Evaldo Batista, Pereira, Ernesto, Taylor, James E., Fletcher, Philip J., Marken, Frank

“…Electrosynthesis traditionally requires dedicated reactor systems and an added electrolyte, although some paired electrosynthesis processes are possible at…”
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Analysis of mosaic mortars from the Roman, Byzantine and Early Islamic periods sourced from Gerasa’s Northwest Quarter by Ball, Richard J., Ansell, Martin P., Su-Cadirci, Tuğçe Büşra, Baki, Vahiddin Alperen, Fletcher, Philip J., Lichtenberger, Achim, Raja, Rubina, Wootton, Will

“…This study analyses and compares around 650 years of mosaic mortar production spanning the Roman, late Roman and Umayyad periods, at Gerasa/Jerash in Jordan,…”
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Defect-Engineered β‑MnO2−δ Precursors Control the Structure–Property Relationships in High-Voltage Spinel LiMn1.5Ni0.5O4−δ by Haruna, Aderemi B, Mwonga, Patrick, Barrett, Dean, Rodella, Cristiane B, Forbes, Roy P, Venter, Andrew, Sentsho, Zeldah, Fletcher, Philip J, Marken, Frank, Ozoemena, Kenneth I

“…This study examines the role of defects in structure–property relationships in spinel LiMn1.5Ni0.5O4 (LMNO) cathode materials, especially in terms of Mn3+…”
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Switching ionic diode states with proton binding into intrinsically microporous polyamine films (PIM-EA-TB) immersed in ethanol by Li, Zhongkai, Fletcher, Philip J., Carta, Mariolino, McKeown, Neil B., Marken, Frank

“…[Display omitted] •HClO4 leads to protonation of PIM-EA-TB and to chemical gating as confirmed by EDX and binding constant measurements.•Electrochemical gating…”
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Tuning and Coupling Irreversible Electroosmotic Water Flow in Ionic Diodes: Methylation of an Intrinsically Microporous Polyamine (PIM-EA-TB) by Li, Zhongkai, Lowe, John P., Fletcher, Philip J., Carta, Mariolino, McKeown, Neil B., Marken, Frank

“…Molecularly rigid polymers with internal charges (positive charges induced by amine methylation) allow electroosmotic water flow to be tuned by adjusting the…”
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Triphasic Oxygen Storage in Wet Nanoparticulate Polymer of Intrinsic Microporosity (PIM-1) on Platinum: An Electrochemical Investigation by Azevedo Beluomini, Maisa, Ramos Stradiotto, Nelson, Boldrin Zanoni, Maria Valnice, Carta, Mariolino, McKeown, Neil B., Fletcher, Philip J., Sain, Sunanda, Li, Zhongkai, Marken, Frank

“…The triphasic interaction of gases with electrode surfaces immersed in aqueous electrolyte is crucial in electrochemical technologies (fuel cells, batteries,…”
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Effects of g‑C3N4 Heterogenization into Intrinsically Microporous Polymers on the Photocatalytic Generation of Hydrogen Peroxide by Zhao, Yuanzhu, Wang, Lina, Malpass-Evans, Richard, McKeown, Neil B, Carta, Mariolino, Lowe, John P, Lyall, Catherine L, Castaing, Rémi, Fletcher, Philip J, Kociok-Köhn, Gabriele, Wenk, Jannis, Guo, Zhenyu, Marken, Frank

“…Graphitic carbon nitride (g-C3N4) is known to photogenerate hydrogen peroxide in the presence of hole quenchers in aqueous environments. Here, the g-C3N4…”
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Indirect (hydrogen-driven) electrodeposition of porous silver onto a palladium membrane by Kanyanee, Tinakorn, Fletcher, Philip J., Madrid, Elena, Marken, Frank

“…Hydrogen permeation through a pure palladium film (25 μm thickness, optically dense) is employed to trigger electron transfer (hydrogen-driven) reactions at…”
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Effects of dissolved gases on partial anodic passivation phenomena at copper microelectrodes immersed in aqueous NaCl by Langley, Amelia R., Fletcher, Philip J., Dawes, Jonathan H.P., Marken, Frank

“…Anodic passivation for copper exposed to aqueous NaCl (model seawater) is rate limited by diffusion of a poorly soluble Cu(I) chloro species. As a result, a…”
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Polymer indicator displacement assay: electrochemical glucose monitoring based on boronic acid receptors and graphene foam competitively binding with poly-nordihydroguaiaretic acid by Wikeley, Simon M, Przybylowski, Jakub, Lozano-Sanchez, Pablo, Caffio, Marco, James, Tony D, Bull, Steven D, Fletcher, Philip J, Marken, Frank

“…The concept of a reversible polymer displacement sensor mechanism for electrochemical glucose monitoring is demonstrated. A pyrene-derivatised boronic acid…”
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Electroanalysis with a single microbead of phosphate binding resin (FerrIX™) mounted in epoxy film by Thompson, Abigail K., Mathwig, Klaus, Fletcher, Philip J., Castaing, Rémi, Marken, Frank

“…Commercial resin microbeads are widely applied in ion exchange and extraction. Here, a single anion-selective and phosphate binding resin microbead (FerrIX™)…”
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Effects of g-C 3 N 4 Heterogenization into Intrinsically Microporous Polymers on the Photocatalytic Generation of Hydrogen Peroxide by Zhao, Yuanzhu, Wang, Lina, Malpass-Evans, Richard, McKeown, Neil B, Carta, Mariolino, Lowe, John P, Lyall, Catherine L, Castaing, Rémi, Fletcher, Philip J, Kociok-Köhn, Gabriele, Wenk, Jannis, Guo, Zhenyu, Marken, Frank

“…Graphitic carbon nitride (g-C N ) is known to photogenerate hydrogen peroxide in the presence of hole quenchers in aqueous environments. Here, the g-C N…”
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Hydrogen Peroxide Versus Hydrogen Generation at Bipolar Pd/Au Nano-catalysts Grown into an Intrinsically Microporous Polyamine (PIM-EA-TB) by Wang, Lina, Carta, Mariolino, Malpass-Evans, Richard, McKeown, Neil B., Fletcher, Philip J., Lednitzky, Diana, Marken, Frank

“…Binding of PdCl 4 2− into the polymer of intrinsic microporosity PIM-EA-TB (on a Nylon mesh substrate) followed by borohydride reduction leads to uncapped…”
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Linking the Cu(II/I) and the Ni(IV/II) Potentials to Subsequent Passive Film Breakdown for a Cu−Ni Alloy in Aqueous 0.5 M NaCl by Langley, Amelia R., Elmer, Aisling, Fletcher, Philip J., Marken, Frank

“…Copper and copper–nickel alloys are known to form partially passive films in marine conditions, both naturally and under positive potential bias. Here, the…”
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Ionic diode desalination: Combining cationic Nafion™ and anionic Sustainion™ rectifiers by Li, Zhongkai, Pang, Tianting, Shen, Junjie, Fletcher, Philip J., Mathwig, Klaus, Marken, Frank

“…Microscale ionic rectifier effects are commonly observed in devices based on semipermeable ionomer coated on an array of microholes with potential applications…”
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Ionic Diode and Molecular Pump Phenomena Associated with Caffeic Acid Accumulated into an Intrinsically Microporous Polyamine (PIM‐EA‐TB) by Li, Zhongkai, Wang, Lina, Malpass‐Evans, Richard, Carta, Mariolino, McKeown, Neil B., Mathwig, Klaus, Fletcher, Philip J., Marken, Frank

“…The polymer of intrinsic microporosity PIM‐EA‐TB provides a molecularly rigid micropore structure containing tertiary amine sites and is shown here to interact…”
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Size‐Selective Photoelectrochemical Reactions in Microporous Environments: Clark Probe Investigation of Pt@g‐C3N4 Embedded into Intrinsically Microporous Polymer (PIM‐1) by Zhao, Yuanzhu, Malpass‐Evans, Richard, Carta, Mariolino, McKeown, Neil B., Fletcher, Philip J., Kociok‐Köhn, Gabriele, Lednitzky, Diana, Marken, Frank

“…Graphitic carbon nitride (g‐C3N4) with photo‐attached platinum (Pt@g‐C3N4) is known to generate hydrogen under illumination in aqueous environments in the…”
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Pyrene-Appended Boronic Acids on Graphene Foam Electrodes Provide Quantum Capacitance-Based Molecular Sensors for Lactate by Wikeley, Simon M., Przybylowski, Jakub, Gardiner, Jordan E., James, Tony D., Fletcher, Philip J., Isaacs, Mark A., Lozano-Sanchez, Pablo, Caffio, Marco, Marken, Frank

“…Molecular recognition and sensing can be coupled to interfacial capacitance changes on graphene foam surfaces linked to double layer effects and coupled to…”
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