Joanne Elliott

Production of a Metallic Single Gyroid with a Tunable Sub-10-nm Unit Cell Size via Lipid-Cubic-Phase Templating: Chiral Nanomaterials for Catalytic and Optical Applications

Samina Akbar, Adam M. Squires, Joanne Elliott

High Resolution Image Download MS PowerPoint Slide We present the production of a metallic single-gyroid nanomaterial by using lipid-cubic-phase templating. Single-gyroid materials are chiral nanowire networks whose chirality potentially gives rise to optical metamaterial behavior, leading to considerable recent scientific interest. Until …

gb (code pays fourni par la source)

Electrochemical fabrication of nanostructured Ni with single diamond morphology

Nassar ABDELRAHIM, Adam M. Squires, Joanne Elliott

Mesoporous nickel with extremely high surface area was successfully fabricated for the first time using a monoolein-based bicontinuous cubic phase as a template. The 3-D nanoarchitecture of the deposited nickel films was confirmed by SAXS, TEM and elctrochemical analysis. The SAXS analysis …

gb (code pays fourni par la source)

Use of cubic structure with primitive nanochannels for fabrication of free standing 3D nanowire network of Pt with Pm3m symmetry

Samina Akbar, Joanne Elliott, Adam M. Squires, Aneela Anwar

Abstract In this work, we developed a lipid mixture based on phytantriol / polyoxyethylene surfactant (Brij-56) that forms a Im 3 m symmetry bicontinuous cubic phase based on the Schwartz primitive surface ( Q II P ), from which we templated highly …

pk, gb (code pays fourni par la source)

Control of Pore and Wire Dimensions in Mesoporous Metal Nanowire Networks through Curvature Modulation in Lipid Templates: Implications for Use as Electrodes

Samina Akbar, Jacob A. Boswell, Sabrina Waters, Stephen John Williams et autres

This paper presents the production of mesoporous metals with periodic 3D nanostructures, showing control over the lattice parameter and therefore pore and wire dimensions. The materials have “single diamond” ( Fd 3 m ) symmetry and are produced by deposition within a …

pk, gb (code pays fourni par la source)

Optimum conditions for electrochemical deposition of 3-D mesoporous platinum framework

Samina Akbar, Joanne Elliott, Adam M. Squires, Aneela Anwar

pk, gb (code pays fourni par la source)

Platinum as an electrocatalyst: Effect of morphological aspects of Pt/Pt-based materials

Samina Akbar, Aneela Anwar, Muhammad Z. Noon, Joanne Elliott et autres

Platinum and platinum-based materials with high catalytic performance, and chemical and mechanical stability are vital to electronic devices, biomedical science, optics, petroleum, and automotive industries. Because of the limited supply and high cost of platinum, it is highly desirable to develop new …

pk, gb (code pays fourni par la source)

Ultrathin Uniform Platinum Nanowires via a Facile Route Using an Inverse Hexagonal Surfactant Phase Template

Samina Akbar, Jacob A. Boswell, Carys Angharad Worsley, Joanne Elliott et autres

We present an attractive method for the fabrication of long, straight, highly crystalline, ultrathin platinum nanowires. The fabrication is simply achieved using an inverse hexagonal (H II ) lyotropic liquid crystal phase of the commercial surfactant phytantriol as a template. A platinum …

pk, gb (code pays fourni par la source)

Encouraging Independent Thought and Learning in First Year Practical Classes

Philippa B. Cranwell, Fred J. Davis, Joanne Elliott, John H. McKendrick et autres

The transition from A-level to degree-level practical classes then to a research project, hence from dependent learner to independent researcher, is a hurdle that all students face when studying for a chemistry degree. This can be daunting so any innovations that aid …

gb (code pays fourni par la source)

Electrochemistry

Joanne Elliott, Elizabeth Mary Page

This chapter describes an electrolyte, which is a substance that dissociates into its component ions upon dissolution and produces a solution that conducts electricity. It examines the variable conductivity of electrolytes, in which small ions tend to be more conductive than large …

Fundamentals

Joanne Elliott, Elizabeth Mary Page

This chapter focuses on the units which are fundamental to the understanding and application of physical chemistry. It describes the Système International d'Unités (SI) system of units. This has been in use since 1970 and consists of seven base units, of which …

Reaction kinetics

Joanne Elliott, Elizabeth Mary Page

This chapter discusses the rate of a chemical reaction in which the reactants are converted into products and are monitored by measuring the change of concentration of a reactant or product with time. It looks at the instantaneous rate, which refers to …

Thermodynamics

Joanne Elliott, Elizabeth Mary Page

This chapter explains the system in which the reaction of interest being studied and the surroundings are the rest of the space around the system. It points out that the system that is supplemented by surroundings is called the universe. It also …