Alexander I. Large
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View article: The Ottawa Mobile Screening Program—Concept and First 18 Months of Experience with a Community-Based Outreach Cardiovascular Prevention Program
The Ottawa Mobile Screening Program—Concept and First 18 Months of Experience with a Community-Based Outreach Cardiovascular Prevention Program Open
In this innovative prevention initiative, we demonstrate the feasibility of an outreach mobile screening program, revealing relatively high rates of VHD, nonvalvular abnormalities, and uncontrolled risk factors. These findings highlight th…
View article: Operando Characterization of Electrochemistry at the Rutile TiO<sub>2</sub>(110)/0.1 M HCl Interface Using Ambient Pressure XPS
Operando Characterization of Electrochemistry at the Rutile TiO<sub>2</sub>(110)/0.1 M HCl Interface Using Ambient Pressure XPS Open
Ambient pressure X-ray photoelectron spectroscopy (AP-XPS) was employed to investigate the effect of applied potential on the interface of TiO2(110) with 0.1 M HCl. The study, which involved operando electrochemical characterization, enabl…
View article: Correction to “Interfacial Chemistry in the Electrocatalytic Hydrogenation of CO<sub>2</sub> over C-Supported Cu-Based Systems”
Correction to “Interfacial Chemistry in the Electrocatalytic Hydrogenation of CO<sub>2</sub> over C-Supported Cu-Based Systems” Open
[This corrects the article DOI: 10.1021/acscatal.3c01288.].
View article: An electrochemical flow cell for operando XPS and NEXAFS investigation of solid–liquid interfaces
An electrochemical flow cell for operando XPS and NEXAFS investigation of solid–liquid interfaces Open
Suitable reaction cells are critical for operando near ambient pressure (NAP) soft x-ray photoelectron spectroscopy (XPS) and near-edge x-ray absorption fine structure (NEXAFS) studies. They enable tracking the chemical state and structura…
View article: VerSoX B07-B: a high-throughput XPS and ambient pressure NEXAFS beamline at Diamond Light Source
VerSoX B07-B: a high-throughput XPS and ambient pressure NEXAFS beamline at Diamond Light Source Open
The beamline optics and endstations at branch B of the Versatile Soft X-ray (VerSoX) beamline B07 at Diamond Light Source are described. B07-B provides medium-flux X-rays in the range 45–2200 eV from a bending magnet source, giving access …
View article: Electrolyte-assisted polarization leading to enhanced charge separation and solar-to-hydrogen conversion efficiency of seawater splitting
Electrolyte-assisted polarization leading to enhanced charge separation and solar-to-hydrogen conversion efficiency of seawater splitting Open
Photocatalytic splitting of seawater for hydrogen evolution has attracted a great deal of attention in recent years. However, the poor energy conversion efficiency and stability of photocatalysts in a salty environment have greatly hindere…
View article: Insights by in-situ studies on the nature of highly-active hydrotalcite-based Ni-Fe catalysts for CO2 methanation
Insights by in-situ studies on the nature of highly-active hydrotalcite-based Ni-Fe catalysts for CO2 methanation Open
Designing CO2 methanation catalysts that meet industrial requirements is still challenging. We report Ni-Fe hydrotalcite-derived catalysts with a wide range of Ni and Mg loadings showing that an optimised composition with Ni0.4 gives a ver…
View article: Dispersed surface Ru ensembles on MgO(111) for catalytic ammonia decomposition
Dispersed surface Ru ensembles on MgO(111) for catalytic ammonia decomposition Open
Ammonia is regarded as an energy vector for hydrogen storage, transport and utilization, which links to usage of renewable energies. However, efficient catalysts for ammonia decomposition and their underlying mechanism yet remain obscure. …
View article: The Versatile Soft X-Ray (VerSoX) Beamline at Diamond Light Source
The Versatile Soft X-Ray (VerSoX) Beamline at Diamond Light Source Open
Background The prosthetic socket is a key component that influences prosthesis satisfaction, with a poorly fitting prosthetic socket linked to prosthesis abandonment and reduced community participation.This paper reviews adjustable socket …
View article: Resonant X-ray photoelectron spectroscopy: identification of atomic contributions to valence states
Resonant X-ray photoelectron spectroscopy: identification of atomic contributions to valence states Open
We demonstrate the validity of using valence resonant X-ray photoelectron spectroscopy to identify atomic contributions for both solutes and solvents.
View article: Dynamics over a Cu–graphite electrode during the gas-phase CO<sub>2</sub> reduction investigated by APXPS
Dynamics over a Cu–graphite electrode during the gas-phase CO<sub>2</sub> reduction investigated by APXPS Open
We use ambient pressure X-ray photoelectron and absorption spectroscopies coupled with on-line gas detection to investigate in situ performance and interface chemistry of an electrodeposited Cu on a carbon support under conditions of CO 2 …
View article: <i>In situ</i> surface analysis of palladium–platinum alloys in methane oxidation conditions
<i>In situ</i> surface analysis of palladium–platinum alloys in methane oxidation conditions Open
Pd and Pd–Pt alloys are studied with NAP-XPS under methane oxidation conditions. Pd–Pt catalysts showed greater resistance to oxidation under reaction conditions, with this coupled to surface restructuring and Pt migration away from the su…
View article: Operando characterisation of alumina-supported bimetallic Pd–Pt catalysts during methane oxidation in dry and wet conditions
Operando characterisation of alumina-supported bimetallic Pd–Pt catalysts during methane oxidation in dry and wet conditions Open
Near ambient pressure x-ray photoelectron spectroscopy (NAP-XPS) was used to study the chemical states of a range of alumina-supported monometallic Pd and bimetallic Pd–Pt nanocatalysts, under methane oxidation conditions. It has been sugg…
View article: Operando characterisation of oxide-supported bimetallic Pd-Pt nanocatalysts for methane oxidation
Operando characterisation of oxide-supported bimetallic Pd-Pt nanocatalysts for methane oxidation Open
Near-ambient pressure x-ray photoelectron spectroscopy (NAP-XPS) was utilised to understand the relationship between the surface chemistry and reactivity of catalysts for the complete oxidation of methane. This reaction is of interest for …
View article: Experimental measurement and prediction of ionic liquid ionisation energies
Experimental measurement and prediction of ionic liquid ionisation energies Open
Non-resonant and resonant photoelectron spectroscopy was used to measure electronic structure descriptors for 60 ionic liquids, allowing the development of design rules to predict the electronic structure descriptors for a further 516 ioni…
View article: Investigations of Carbon Nitride-Supported Mn3O4 Oxide Nanoparticles for ORR
Investigations of Carbon Nitride-Supported Mn3O4 Oxide Nanoparticles for ORR Open
Earth-abundant Mn-based oxide nanoparticles are supported on carbon nitride using two different immobilization methods and tested for the oxygen reduction reaction. Compared to the metal free CN, the immobilization of Mn oxide enhances not…
View article: Ambient-pressure endstation of the Versatile Soft X-ray (VerSoX) beamline at Diamond Light Source
Ambient-pressure endstation of the Versatile Soft X-ray (VerSoX) beamline at Diamond Light Source Open
The ambient-pressure endstation and branchline of the Versatile Soft X-ray (VerSoX) beamline B07 at Diamond Light Source serves a very diverse user community studying heterogeneous catalysts, pharmaceuticals and biomaterials under realisti…
View article: Adsorption of Aspartic Acid on Ni{100}: A Combined Experimental and Theoretical Study
Adsorption of Aspartic Acid on Ni{100}: A Combined Experimental and Theoretical Study Open
Understanding the interaction of amino acids with metal surfaces is essential for the rational design of chiral modifiers able to confer enantioselectivity to metal catalysts. Here, we present an investigation of the adsorption of aspartic…
View article: Elucidating the mechanism of the CO<sub>2</sub> methanation reaction over Ni–Fe hydrotalcite-derived catalysts <i>via</i> surface-sensitive <i>in situ</i> XPS and NEXAFS
Elucidating the mechanism of the CO<sub>2</sub> methanation reaction over Ni–Fe hydrotalcite-derived catalysts <i>via</i> surface-sensitive <i>in situ</i> XPS and NEXAFS Open
In situ surface sensitive XPS and NEXAFS clarify the promotion effect of Fe in Ni–Fe/hydrotalcite-derived catalysts for the CO2 methanation reaction.