Helmholtz-Institute Ulm

4CzIPN Photosensitizes the Cobaloxime‐Catalyzed Light‐Driven Hydrogen Evolution Reaction

TADF compounds have found great application as photocatalyst in recent years. Their use as photosensitizers (PS), however, is still limited although they have a huge potential as abundant alternatives for traditional noble metal-based PSs, such as [Ru(bpy)3]2+. We herein investig...

Surface‐Fluorinated Conductive Carbon for Coupled Electron/Ion Transport Through the Graphite Anode

ABSTRACT Graphite (Gr) is the dominant anode material for commercial lithium‐ion batteries (LIBs). However, its fast‐charging capability is often constrained by sluggish Li + transport and large interfacial polarization under high current densities. Conventional conductive carbon...

Investigation of In Situ Cross-linked Polyacrylic Acid-PEG Binder for Si-dominant Anodes in Lithium-Ion Full Cells

Abstract Silicon (Si) is a highly promising anode material for lithium-ion batteries due to its high theoretical capacity. However, its practical use is limited by significant volume changes and resulting degradation during cycling. To enhance the mechanical stability of the Si a...

Decoupling Ion–Dipole Interactions via Competitive Coordination for Durable Dendrite-Free Zinc Metal Batteries

Abstract The aqueous zinc metal batteries (AZMBs) are famous for high-safety and high-energy-density, but limited by severe challenges around the Helmholtz plane layer such as the strong ion–dipole interactions between Zn 2+ and H 2 O, resulting in slow desolvation processes and...

Impact of oxygen and hydrogen traces on the focused ion beam sputter rate and secondary ion mass spectrometry intensity detection of graphite

Trace amounts of oxygen and hydrogen can strongly influence the formation of negative carbon ions during focused ion beam–secondary ion mass spectrometry (SIMS) analysis of graphite. In this study, the sputtering behavior of graphite and the detection of single and clustered carb...