M
Marc Walker
Researcher at University of Warwick
Publications - 146
Citations - 3481
Marc Walker is an academic researcher from University of Warwick. The author has contributed to research in topics: X-ray photoelectron spectroscopy & Chemistry. The author has an hindex of 24, co-authored 121 publications receiving 2311 citations.
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Enhanced stability and efficiency in hole-transport-layer-free CsSnI3 perovskite photovoltaics
TL;DR: In this article, the authors report CsSnI3 perovskite photovoltaic devices without a hole-selective interfacial layer that exhibit a stability 10 times greater than devices with the same architecture using methylammonium lead iodide perovsite, and the highest efficiency of 3.56%.
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Reaction of atomic oxygen with a Pt(1 1 1) surface: chemical and structural determination using XPS, CAICISS and LEED
TL;DR: In this article, the adsorption of thermally cracked atomic oxygen on the Pt(1) surface has been investigated using X-ray photoelectron spectroscopy (XPS), co-axial impact collision ion scattering spectrum (CAICISS), and low energy electron diffraction (LEED).
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The SARS-COV-2 Spike Protein Binds Sialic Acids, and Enables Rapid Detection in a Lateral Flow Point of Care Diagnostic Device
Alexander N. Baker,Sarah-Jane Richards,Collette S. Guy,Thomas R. Congdon,Muhammad Hasan,Alexander James Zwetsloot,Angelo Gallo,Józef R. Lewandowski,Phillip J. Stansfeld,Anne Straube,Marc Walker,Simona Chessa,Giulia Pergolizzi,Simone Dedola,Robert A. Field,Robert A. Field,Matthew I. Gibson +16 more
TL;DR: A glyconanoparticle platform is used to discover that N-acetyl neuraminic acid has affinity toward the SARS-COV-2 spike glycoprotein, demonstrating its glycan-binding function and the potential of this system as a low-cost detection platform.
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Electrochemical maps and movies of the hydrogen evolution reaction on natural crystals of molybdenite (MoS2): basal vs. edge plane activity
Cameron Luke Bentley,Minkyung Kang,Faduma M. Maddar,Fengwang Li,Marc Walker,Jie Zhang,Patrick R. Unwin +6 more
TL;DR: In this article, the first spatially-resolved measurements of HER activity on natural crystals of molybdenite, achieved using voltammetric scanning electrochemical cell microscopy (SECCM) measurements have allowed the HER to be visualized at multiple different potentials to construct electrochemical flux movies with nanoscale resolution.
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Sulfur‐Functionalized Graphene Oxide by Epoxide Ring‐Opening
TL;DR: The treatment of graphene oxide with potassium thioacetate followed by an aqueous work-up yields a new material, a thiol-functionalized GO (GO-SH) which is able to undergo further functionalization and showed a high affinity for gold, as demonstrated by the selective deposition of a high density of gold nanoparticles.